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TPS75100 - Two-Bank LED Driver

General Description

The TPS7510x linear low dropout (LDO) matching LED current source is optimized for low-power keypad and navigation pad LED backlighting applications.

The device provides a constant current to up to four unmatched LEDs organized in two banks of two LEDs each in a common-cathode topology.

Key Features

  • 1 Regulated Output Current with 2% LED-to-LED Matching.
  • Drives Up to Four LEDs at 25 mA Each in a Common Cathode Topology.
  • 28-mV Typical Dropout Voltage Extends Usable Supply Range in Li-Ion Battery.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS75100, TPS75103, TPS75105 SBVS080J – SEPTEMBER 2006 – REVISED NOVEMBER 2016 TPS7510x Low Dropout, Two-Bank LED Driver With PWM Brightness Control 1 Features •1 Regulated Output Current with 2% LED-to-LED Matching • Drives Up to Four LEDs at 25 mA Each in a Common Cathode Topology • 28-mV Typical Dropout Voltage Extends Usable Supply Range in Li-Ion Battery Applications • Brightness Control Using PWM Signals • Two 2-LED Banks With Independent Enable and PWM Brightness Control per Bank • No Internal Switching Signals—Eliminates EMI • Default LED Current Eliminates External Components – Default Values from 3 mA to 10 mA (in 1-mA Increments) Available Using Innovative Factory EEPROM Programming – Opti