High Current and Performance White LED Driver

The HT7939 is a high efficiency boost converter for driving White LEDs using current mode operation. The device is designed to drive up to 39 White LEDs from a 5V power supply. The White LED current is setup using an external current setting resistor, which has a low feedback voltage of 0.2V to mini • Input range from 2.6V~5.5V\n• Built-in Power MOSFET\n• Can drive up to 39 White LEDs with a 5V input\n• Low standby current: 0.1μA (typ.) with VEN low\n• Integrated Over-voltage, Over-temperature and Over-current protection circuits\n• Under voltage lock-out protection\n• 1.2MHz fixed switching fr;

High Current and Performance White LED Driver

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High Current and Performance White LED Driver

文件：320.26 Kbytes Page：13 Pages

High Current and Performance White LED Driver

The HT7939A is a high efficiency boost converter for driving multiple White LEDs using current mode operation. The device is designed to drive up to 39 White LEDs from a 5V power supply. The White LED current is setup using an external current setting resistor, which has a low feedback voltage of 0. •Input voltage range: 2.6V~5.5V\n •High efficiency - up to 90%\n •Integrated N-ch MOSFET\n •Can drive up to 39 WLEDs from a 5V input\n •Low standby current: 0.1uA (typ.)\n •Built-in OVP, OCP, OTP, UVLO protection\n •EN pin dimming frequency up to 200kHz\n •1.2MHz fixed switching frequency\n •SOT;

High Current and Performance White LED Driver

文件：320.26 Kbytes Page：13 Pages

High Current and Performance White LED Driver

文件：2.77839 Mbytes Page：12 Pages

Performance White LED Driver

文件：3.52142 Mbytes Page：13 Pages

High Current and Performance White LED Driver

文件：3.59481 Mbytes Page：12 Pages

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8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer

GENERAL DESCRIPTION The AD7938/AD7939 are 12-bit and 10-bit,high speed,low power,successive approximation (SAR) ADCs. The parts operate from a single 2.7 V to5.25 V power supply and feature throughput rates up to1.5 MSPS.The parts contain a low noise, wideband width,differential track-and-hold

8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer

GENERAL DESCRIPTION The AD7938/AD7939 are 12-bit and 10-bit,high speed,low power,successive approximation (SAR) ADCs. The parts operate from a single 2.7 V to5.25 V power supply and feature throughput rates up to1.5 MSPS.The parts contain a low noise, wideband width,differential track-and-hold

8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer

GENERAL DESCRIPTION The AD7938/AD7939 are 12-bit and 10-bit,high speed,low power,successive approximation (SAR) ADCs. The parts operate from a single 2.7 V to5.25 V power supply and feature throughput rates up to1.5 MSPS.The parts contain a low noise, wideband width,differential track-and-hold

Laser Diode Driver with Automatic Power Control

General Description The VSC7939 is a single 3.3V or 5V supply laser diode driver specially designed for SONET/SDH applications up to 3.125Gb/s. External resistors set a wide range of bias and modulation currents for driving the laser. Features • Power Supply: 3.3V or 5V ±5 • AC-Coupled to

Laser Diode Driver with Automatic Power Control

General Description The VSC7939 is a single 3.3V or 5V supply laser diode driver specially designed for SONET/SDH applications up to 3.125Gb/s. External resistors set a wide range of bias and modulation currents for driving the laser. Features • Power Supply: 3.3V or 5V ±5 • AC-Coupled to