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CP2137 - 4-Channel LED Driver

Description

The CP2137 is optimized for white LED supplies in backlight color display applications.

The device provides a constant current, set by an external resistor, for each LED.

Features

  • y y y y y y y y Drives up to 4 LEDs at 30 mA Each Regulated Output Current With 0.5% Matching Over Temperature High Efficiency by Adaptive Mode Selection Between 1x and 1.5x Modes LED Brightness Control Through PWM Control Signal（0Hz～50KHz） Low Input Ripple and Low EMI Over-current and Over-temperature Protected Less than 0.1μA Quiescent Current In Shutdown Mode RoHS Compliant and 100% Lead (Pb)-Free.

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Datasheet Details

Part number CP2137
Manufacturer CHIP
File Size 135.51 KB
Description 4-Channel LED Driver
Datasheet download datasheet CP2137 Datasheet

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Full PDF Text Transcription

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Product Brief CP2137 V1.0 DC/DC Series 4-Channel LED Driver with Adaptive Charge Pump Current Source General www.datasheet4u.com Description The CP2137 is optimized for white LED supplies in backlight color display applications. The device provides a constant current, set by an external resistor, for each LED. The supply voltage ranges from 2.7 V to 5.5 V and is ideally suited for all applications powered by a single LI-Ion battery cell. The CP2137 provides up to 30 mA per LED, for a total of 120 mA, for input voltages ranging from 3 V to 5.5 V. High efficiency is achieved by utilizing a 1x/1.5x adaptive fractional conversion technique in combination with very low dropout current sources. Only two external 1µF and two 0.
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