If you heard Hqew.net,It that is the Well-known electronic components trading platform.
Hqew.net attends KES 2010，Under the slogan "IT is my life", the 41st Korea Electronics Show 2010 (KES 2010) was held on from October 12th to 15th at KINTEX (Korea International Exhibition Center) in Seoul, Korea As to strengthen the communication and cooperation with suppliers.Hqew.com organized some good suppliers to participate in this exhibition. For those, it is an way to develop the international market.
Welcome to the procurement of electronic component at Hqew.net. Top electronic components such as lm358,lm317,ne555,lm324,lm339.
Thursday, March 31, 2011
Wednesday, March 30, 2011
The application about Ic components UCB1400
The electronic component UCB1400 is a stereo audio codec equipped with touch screen and power
management interfaces. It integrates an AC ’97 Rev. 2.1 interface for communication
to an AC link host controller such as the Intel Xscale™ processor. The stereo audio
codec inputs connect directly to a microphone or line level sources such as a CD
player.
The stereo audio codec outputs at line level and can drive a headphone
directly. The touch screen interface connects directly to a 4-wire resistive touch
screen. A built-in 10-bit analog-to-digital converter provides readout of touch screen
and power management parameters. Ten general-purpose I/O pins provide
programmable inputs and/or outputs to the system.
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management interfaces. It integrates an AC ’97 Rev. 2.1 interface for communication
to an AC link host controller such as the Intel Xscale™ processor. The stereo audio
codec inputs connect directly to a microphone or line level sources such as a CD
player.
The stereo audio codec outputs at line level and can drive a headphone
directly. The touch screen interface connects directly to a 4-wire resistive touch
screen. A built-in 10-bit analog-to-digital converter provides readout of touch screen
and power management parameters. Ten general-purpose I/O pins provide
programmable inputs and/or outputs to the system.
The above information from Hqew.net,offer top electronic components lm358,lm317,ne555,lm324,lm339,and other difficult to find ic components.
Tuesday, March 29, 2011
Ic components DG408 and DG409 description introduction
The electronic components DG408 and electronic component DG409 feature lower signal ON resistance (<100Ω) and faster switch transition time (tTRANS < 250ns) compared to the DG508A or DG509A. Charge injection has been reduced, simplifying sample and hold applications.
The improvements in the DG408 series are made possible by using a high-voltage silicon-gate process. An epitaxial layer prevents the latch-up associated with older CMOS
technologies. Power supplies may be single-ended from +5V to +34V, or split from ±5V to ±20V.
The analog switches are bilateral, equally matched for AC or bidirectional signals. The ON resistance variation with analog signals is quite low over a ±5V analog input range.
Hqew.net provide you with the national ic components lm358,lm317,ne555,lm324,lm339.
The improvements in the DG408 series are made possible by using a high-voltage silicon-gate process. An epitaxial layer prevents the latch-up associated with older CMOS
technologies. Power supplies may be single-ended from +5V to +34V, or split from ±5V to ±20V.
The analog switches are bilateral, equally matched for AC or bidirectional signals. The ON resistance variation with analog signals is quite low over a ±5V analog input range.
Hqew.net provide you with the national ic components lm358,lm317,ne555,lm324,lm339.
Single 8-Channel/Differential 4-Channel,CMOS Analog Multiplexers
The electronic components DG408 Single 8-Channel, and DG409 Differential 4-Channel monolithic CMOS analog multiplexers are drop-in replacements for the popular DG508A and DG509A series devices.
They each include an array of eight analog switches, a TTL/CMOS compatible digital decode circuit for channel selection, a voltage reference for logic thresholds and an ENABLE input for device selection when several multiplexers are present.
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information, price reference Datasheet, free PDF download ic components lm358,lm317,ne555,lm324,lm339.
They each include an array of eight analog switches, a TTL/CMOS compatible digital decode circuit for channel selection, a voltage reference for logic thresholds and an ENABLE input for device selection when several multiplexers are present.
Hqew.net provide you with the national electronic component DG408 original spot
information, price reference Datasheet, free PDF download ic components lm358,lm317,ne555,lm324,lm339.
Monday, March 28, 2011
description or ordering information about LM2903
description or ordering information about ic components LM2903 below:
These devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages.
Operation from dual supplies also is possible as long as the difference between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.
The electronic components LM339 is characterized for operation from 55°C to 125°C. The LM293 and LM293A are characterized for operation from 25°C to 85°C. The LM393 and LM393A are characterized for operation from 0°C to 70°C. The electronic component LM2903 is characterized for operation from 40°C to 125°C.
These devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages.
Operation from dual supplies also is possible as long as the difference between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.
The electronic components LM339 is characterized for operation from 55°C to 125°C. The LM293 and LM293A are characterized for operation from 25°C to 85°C. The LM393 and LM393A are characterized for operation from 0°C to 70°C. The electronic component LM2903 is characterized for operation from 40°C to 125°C.
Friday, March 25, 2011
Features about electronic components DTC124EE
Summarize three points is important for engaged in the electronic components industry
1.Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see the equivalent circuit).
2.The bias resistors consist of thin-film resistors with complete isolation to allow negative biasing of the input. They also have the advantage of almost completely eliminating parasitic effects.
3.Only the on / off conditions need to be set for operation, making device design easy.
Other ic components LM358,LM317,NE555,LM324 and electronic component LM339 is top model.
1.Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see the equivalent circuit).
2.The bias resistors consist of thin-film resistors with complete isolation to allow negative biasing of the input. They also have the advantage of almost completely eliminating parasitic effects.
3.Only the on / off conditions need to be set for operation, making device design easy.
Other ic components LM358,LM317,NE555,LM324 and electronic component LM339 is top model.
Thursday, March 24, 2011
Characteristics about electronic components MAX6950/MAX6951
Ic components MAX6950/MAX6951 Is common in electronic components market,electronic component LTC1736 5-Bit Adjustable,High Efficiency Synchronous,Step-Down Switching Regulator,the
detailed features and application below:
1.High-speed 26MHz SPI-, QSPI-, MICROWIRECompatible Serial Interface
2.+2.7V to +5.5V Operation
3.Individual LED Segment Control
4.Segment Blinking Control that Can Be Synchronized Across Multiple Drivers
5.Hexadecimal Decode/No-Decode Digit Selection
6.Digital Brightness Control
7.Display Blanked on Power-Up
8.Drives Common-Cathode LED Digits
9.Multiplex Clock Syncronizable to External Clock
10.Slew-Rate Limited Segment Drivers for Low EMI
11.75μA Low-Power Shutdown (Data Retained)
12.Small 16-Pin QSOP Package
detailed features and application below:
1.High-speed 26MHz SPI-, QSPI-, MICROWIRECompatible Serial Interface
2.+2.7V to +5.5V Operation
3.Individual LED Segment Control
4.Segment Blinking Control that Can Be Synchronized Across Multiple Drivers
5.Hexadecimal Decode/No-Decode Digit Selection
6.Digital Brightness Control
7.Display Blanked on Power-Up
8.Drives Common-Cathode LED Digits
9.Multiplex Clock Syncronizable to External Clock
10.Slew-Rate Limited Segment Drivers for Low EMI
11.75μA Low-Power Shutdown (Data Retained)
12.Small 16-Pin QSOP Package
Wednesday, March 23, 2011
Description about Ic components VND5004A-E and VND5004ASP30-E Features
The electronic components VND5004ATR-E and electronic component VND5004ASP30-E are devices made using STMicroelectronics VIPower
technology. They are intended for driving resistive or inductive loads with one side connected to ground.
Active VCC pin voltage clamp and load dump protection circuit protect the devices against transients on the Vcc pin (see ic components ISO7637 transient compatibility table). These devices integrate an analog current sense which delivers a current proportional to the load current (according to a known ratio) when CS_DIS is driven low or left open. When CS_DIS is driven high, the CURRENT SENSE pin is high impedance.
Output current limitation protects the devices in overload condition. In case of long duration overload, the devicesa limit the dissipated power to a safe level up to thermal shut-down intervention. Thermal shut-down with automatic restart allows the device to recover normal operation as soon as a fault condition disappears.
technology. They are intended for driving resistive or inductive loads with one side connected to ground.
Active VCC pin voltage clamp and load dump protection circuit protect the devices against transients on the Vcc pin (see ic components ISO7637 transient compatibility table). These devices integrate an analog current sense which delivers a current proportional to the load current (according to a known ratio) when CS_DIS is driven low or left open. When CS_DIS is driven high, the CURRENT SENSE pin is high impedance.
Output current limitation protects the devices in overload condition. In case of long duration overload, the devicesa limit the dissipated power to a safe level up to thermal shut-down intervention. Thermal shut-down with automatic restart allows the device to recover normal operation as soon as a fault condition disappears.
Tuesday, March 22, 2011
Hqew.net is an professional B2B marketplace of IC components
Hqew.net is an professional B2B marketplace of electronic components IC & Semi-conductors,featuring excess inventory and rare and obsolete products from the Asia Pacific region.
Our platform has supported thousands of users from nearly 200 countries and regions with the number of users increasing steadily every day. We strive to provide a highly reliable and efficient trading channel for traders, buyers and sellers.
Provide ic components model, price, download data and other information。
Our platform has supported thousands of users from nearly 200 countries and regions with the number of users increasing steadily every day. We strive to provide a highly reliable and efficient trading channel for traders, buyers and sellers.
Provide ic components model, price, download data and other information。
Monday, March 21, 2011
The operating frequency about ic components LTC1736
Do you know The operating frequency about electronic components,such as electronic component LTC1736?
May be you only know characteristics or description.
The operating frequency (synchronizable up to 500kHz) about ic components LTC1736 is set by an external capacitor allowing maximum flexibility in optimizing efficiency. The output voltage is monitored by a power good window comparator that indicates when the output is within 7.5% of its programmed value.
Protection features include: internal foldback current limiting,output overvoltage crowbar and optional short-circuit shutdown. Soft-start is provided by an external capacitor that can be used to properly sequence supplies.
May be you only know characteristics or description.
The operating frequency (synchronizable up to 500kHz) about ic components LTC1736 is set by an external capacitor allowing maximum flexibility in optimizing efficiency. The output voltage is monitored by a power good window comparator that indicates when the output is within 7.5% of its programmed value.
Protection features include: internal foldback current limiting,output overvoltage crowbar and optional short-circuit shutdown. Soft-start is provided by an external capacitor that can be used to properly sequence supplies.
Thursday, March 17, 2011
About ic components LM317 model series knowledge introduction
About electronic components LM317 and series model such electronic component LM117 and so on,Do you want to know the knowledge about ic components ,follwos:
Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response.
The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.
Hope can help you!
Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response.
The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.
Hope can help you!
Many features of Ic components LM101A/LM201A/LM301A
This Series of electronic components offers many features which make its application nearly foolproof:
overload protection on the input and output, no latch-up when the common mode range is
exceeded, and freedom from oscillations and compensation with a single 30 pF capacitor. It has advantages over internally compensated amplifiers in that the frequency
compensation can be tailored to the particular application.
For example, in low frequency circuits it can be overcompensated for increased stability margin. Or the compensation can be optimized to give more than a factor of
ten improvement in high frequency performance for most applications.
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overload protection on the input and output, no latch-up when the common mode range is
exceeded, and freedom from oscillations and compensation with a single 30 pF capacitor. It has advantages over internally compensated amplifiers in that the frequency
compensation can be tailored to the particular application.
For example, in low frequency circuits it can be overcompensated for increased stability margin. Or the compensation can be optimized to give more than a factor of
ten improvement in high frequency performance for most applications.
If you want to know other Series of ic components or electronic component,I recommend a site for you,Top B2B Marketplace of electronic component http://www.hqew.net/
Wednesday, March 16, 2011
description information of electronic components lm358dr
These devices consist of two independent,high-gain, frequency-compensated operational
amplifiers designed to operate from a single supply over a wide range of voltages. Operation from split supplies also is possible if the difference between the two supplies is 3 V to 32 V (3 V to 26 V for the electronic components LM2904), and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is independent of the magnitude of the supply voltage.
Applications include transducer amplifiers, dc amplification blocks, and all the conventional operational amplifier circuits that now can be implemented more easily in single-supply-voltage systems. For example, these devices can be operated directly from the standard 5-V supply used in digital systems and easily can provide the required interface ic components without additional ±5-V supplies.
amplifiers designed to operate from a single supply over a wide range of voltages. Operation from split supplies also is possible if the difference between the two supplies is 3 V to 32 V (3 V to 26 V for the electronic components LM2904), and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is independent of the magnitude of the supply voltage.
Applications include transducer amplifiers, dc amplification blocks, and all the conventional operational amplifier circuits that now can be implemented more easily in single-supply-voltage systems. For example, these devices can be operated directly from the standard 5-V supply used in digital systems and easily can provide the required interface ic components without additional ±5-V supplies.
Tuesday, March 15, 2011
Buy lm358 parts Online, download datasheets, View Manufacturer Info at hqew.net
hqew.net is the trade market of electronic components,supply LM358、005BB、02CZ39、electronic component 02CZ12-Y、0243-00
Low Power Dual Operational Amplifier
Introduction the features of ic components LM358
• Available in 8-Bump micro SMD chip sized package, (See AN-1112)
• Internally frequency compensated for unity gain
• Large dc voltage gain: 100 dB
• Wide bandwidth (unity gain): 1 MHz (temperature compensated)
• Wide power supply range:
• Single supply: 3V to 32V
• or dual supplies: ±1.5V to ±16V
• Very low supply current drain (500 µA)-essentially independent of supply voltage
• Low input offset voltage: 2 mV
• Input common-mode voltage range includes ground
• Differential input voltage range equal to the power supply voltage
• Large output voltage swing
Low Power Dual Operational Amplifier
Introduction the features of ic components LM358
• Available in 8-Bump micro SMD chip sized package, (See AN-1112)
• Internally frequency compensated for unity gain
• Large dc voltage gain: 100 dB
• Wide bandwidth (unity gain): 1 MHz (temperature compensated)
• Wide power supply range:
• Single supply: 3V to 32V
• or dual supplies: ±1.5V to ±16V
• Very low supply current drain (500 µA)-essentially independent of supply voltage
• Low input offset voltage: 2 mV
• Input common-mode voltage range includes ground
• Differential input voltage range equal to the power supply voltage
• Large output voltage swing
Thursday, March 10, 2011
Introduction a trading platform for ic components hqew.net Simple concept on the introduction of ic components
Electronic components is the components and devices in general.Electronic component: refers to the production and processing in the factory does not change the molecular composition of the finished product. Such as resistors, capacitors, inductors. Because it itself does not produce electronics, its voltage, current, and transform the role of uncontrolled, so called passive components.
Recommend a trading platform for electronic components partinchina.com.
Global large collection of popular models of ic components,for example LM358,LM317,NE555,LM324,LM339.
Recommend a trading platform for electronic components partinchina.com.
Global large collection of popular models of ic components,for example LM358,LM317,NE555,LM324,LM339.
Development and strength of Hqew.net
Hqew.net collects and interprets worldwide market intelligence and component data from manufacturers, distributors, and other supply sources.
Hqew.net WorldWide Inc. provides electronic components procurement services to thousands of electronic manufacturing companies around the world.
Hqew.net database is the leading source of technical information in the industry delivering complete data sets on more than 170 million individual electronic component from more than 1800 active manufacturers.
Please believe our professional ability,Won't let you disappointed.
Hqew.net WorldWide Inc. provides electronic components procurement services to thousands of electronic manufacturing companies around the world.
Hqew.net database is the leading source of technical information in the industry delivering complete data sets on more than 170 million individual electronic component from more than 1800 active manufacturers.
Please believe our professional ability,Won't let you disappointed.
Tuesday, March 8, 2011
Have you read Passive electronic component handbook
The book is main content follows:
The Definitive Technical Resource on Passive ic components! Here's the fully updated and revised edition of the most comprehensive standard reference on electronic components--and the first such revision in over 15 years! It gives electronics engineers, designers, and technicians quick, reliable one-volume access to critical characteristic data, performance curves, and design guidelines.
The full range of component technologies is covered, including resistors, capacitors, transformers, relays and switches, batteries, fuse and protective components, filters and transient voltage protection devices, wiring and cabling, connectors, and enabling devices. More than a mere rehashing of manufacturer specs, this unique handbook provides working Electronic Component professionals and mechanical engineers with the practical data they need to more effectively select optimal components for their intended functional performance in virtually any electronics system. Along with its companion volume, the Active Electronic Components Handbook, this resource belongs on every designer's bookshelf.
The Definitive Technical Resource on Passive ic components! Here's the fully updated and revised edition of the most comprehensive standard reference on electronic components--and the first such revision in over 15 years! It gives electronics engineers, designers, and technicians quick, reliable one-volume access to critical characteristic data, performance curves, and design guidelines.
The full range of component technologies is covered, including resistors, capacitors, transformers, relays and switches, batteries, fuse and protective components, filters and transient voltage protection devices, wiring and cabling, connectors, and enabling devices. More than a mere rehashing of manufacturer specs, this unique handbook provides working Electronic Component professionals and mechanical engineers with the practical data they need to more effectively select optimal components for their intended functional performance in virtually any electronics system. Along with its companion volume, the Active Electronic Components Handbook, this resource belongs on every designer's bookshelf.
Monday, March 7, 2011
Recommended the hot ic components and Main performance
Recommended the hot electronic components and important performance index:
LMV721:
Wider Bandwidth, Lower Noise, Lower Power
LM6154:
Much Wider Bandwidth, RRIO, Faster Slew Rate
LMC6484:
Improved Bandwidth And Slew Rate, Bias Current, Rail-to-rail Input & Output
LMV321:
Single Version In SOT-23
LM324:
Lower Voltage
LM358:
Dual Version
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LMV721:
Wider Bandwidth, Lower Noise, Lower Power
LM6154:
Much Wider Bandwidth, RRIO, Faster Slew Rate
LMC6484:
Improved Bandwidth And Slew Rate, Bias Current, Rail-to-rail Input & Output
LMV321:
Single Version In SOT-23
LM324:
Lower Voltage
LM358:
Dual Version
I know a top B2B Marketplace of Electronic Components-hqew.net,many ic components introduction,if you interested in ic components.
Thursday, March 3, 2011
A small story about Blinker using arduino and NE555 timer IC
A small story about electronic components NE555
This is the one of the easiest arduino projects. You might be interested in making this project on breadboard. So, you can take some easy steps given below:
- One pin of reset switch goes to GND(ground) and the other pin goes to reset pin(Pin1 of chip).
- 10K resistor is connected across reset pin (Pin 1) and Vcc. Vcc is the power to run the programmer and that is drawn by FT232RL breakout board via computer.
- Pin 7 of chip goes to Vcc
- Pin 8 of chip goes to GND
- 16Mhz crystal oscillator is connected between Pin 9 and 10 of Atmega chip.
- One 22pF capacitor is connected across pin 9 and GND and the other capacitor across Pin 10 and GND.
- Pin 22 goes to GND
- Pin 20 and 21 go to Vcc.
- 330R resistor is connected to Pin 19 (DIG 13) and cathode terminal of LED and the led’s anode terminal is finally connected to GND.
Many hot ic components lm358,lm317,lm339 and so on, high demand in the market.
This is the one of the easiest arduino projects. You might be interested in making this project on breadboard. So, you can take some easy steps given below:
- 10K resistor is connected across reset pin (Pin 1) and Vcc. Vcc is the power to run the programmer and that is drawn by FT232RL breakout board via computer.
- Pin 7 of chip goes to Vcc
- Pin 8 of chip goes to GND
- 16Mhz crystal oscillator is connected between Pin 9 and 10 of Atmega chip.
- One 22pF capacitor is connected across pin 9 and GND and the other capacitor across Pin 10 and GND.
- Pin 22 goes to GND
- Pin 20 and 21 go to Vcc.
- 330R resistor is connected to Pin 19 (DIG 13) and cathode terminal of LED and the led’s anode terminal is finally connected to GND.
Many hot ic components lm358,lm317,lm339 and so on, high demand in the market.
IC parts LM2904,LM358/LM358A performance description
performance of many Ic parts models keywords is similar,such as LM2904,LM358/LM358A,
LM258/LM258A,here electronic components performance description:
frequency compensated operational amplifiers which were designed specifically to
operate from a single power supply over a wide range of voltage. Operation from split
power supplies is also possible and the low power supply current drain is independent
of the magnitude of the power supply voltage.
Application areas include transducer amplifier, DC gain blocks and all the conventional
OP-AMP circuits which now can be easily implemented in single power supply systems.
Tuesday, March 1, 2011
Introduction to the function about Variable Resistor
1. A variable resistor is a resistor with a sliding or turning device.
2. Names of variable resistors include rheostat and potentiometer.
3. These are used as volume controls in radio receivers and TV sets.
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