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CP2129 - White LED Step-up Converter

Description

The CP2129 is a step-up DC/DC converter specifically designed for driving white LEDs with a constant current.

The device can drive up to 4 white LEDs from a 3V power supply.

PWM dimming control is supported to adjust the brightness of the white LEDs.

Features

  • y y y y y y y y Inherently matched LED current High efficiency: 84% (typical) Stable 20V bipolar switches Internal output over-voltage protection (17V typical) Fast 1.1MHz switching frequency Uses tiny 1mm height inductors Shutdown current:.

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Datasheet Details

Part number CP2129
Manufacturer CHIP
File Size 125.25 KB
Description White LED Step-up Converter
Datasheet download datasheet CP2129 Datasheet

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CP2122 Step-Up White-LED Driver
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Full PDF Text Transcription

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Product Brief Step-Up DC-DC Converter General www.datasheet4u.com Description CP2129 V1.1 DC/DC Series The CP2129 is a step-up DC/DC converter specifically designed for driving white LEDs with a constant current. The device can drive up to 4 white LEDs from a 3V power supply. PWM dimming control is supported to adjust the brightness of the white LEDs. The CP2129 switches at 1.1 MHz allowing the use of tiny components. 250mV feedback voltage minimizes the power loss in the current setting resistor for better efficiency. The CP2129 is equipped with the over voltage protection when the OVP pin connecting to the VOUT, which can make the device keep in safe mode when the LEDs in open state. The CP2129 is available in SOT23-6L package.
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