Datasheet > TD8201

TD8201

更新时间： 2024-01-25 00:53:40

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数据手册

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TD8201 数据手册

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DATASHEET

T^echcode®

White LED Step-up Converter

汪工 TEL:13828719410 QQ:1929794238

TD8201

General Description

Features

The TD8201 is a step‐up DC/DC converter designed for driving

up to 5 white LEDs in series from a single cell Lithium Ion

battery with constant current. Because it directly regulates

output current, the TD8201 is ideal for driving light

emitting diodes (LEDs) whose light intensity is

proportional to the current passing through them, not the

voltage across their terminals. A single external resistor sets

LED current between 2mA and 20mA, which can then be

easily adjusted using either a DC voltage or a pulse width

modulated (PWM) signal up to 100KHz. Its low

104mV feedback voltage reduces power loss and

improves efficiency. The OV pin monitors the output

voltage and turns off the converter if an

Drives Up to 5 Series White LEDs from 3V

Up to 87% Efficiency

1.25MHz Fixed Switching Frequency

Low 104mV Feedback Voltage

Open Load Shutdown

PWM Dimming

SOT23‐6 Packages

RoHS compliant

Applications

Cell Phones

over‐voltage condition is present due to an open circuit

condition. The TD8201 is available in SOT23‐6 packages.

Handheld Computers and PDAs

Digital Cameras

Small LCD Displays

www.tongchuangwei.com

December, 20, 2011

Techcode Semiconductor Limited

12 3 4 5 6 7...11

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