TD8201 Datasheet PDF

Techcode TD8201

The TD8201 is a step‐up DC/DC converter designed for driving z Drives Up to 5 Series White LEDs from 3V up to 5 white LEDs in series from a single cell Lithium Ion z Up to 87% Efficiency battery with constant current. Its low 104mV feedback voltage reduces power loss and Applications improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over‐voltage condition is present due to an open circuit condition.

Part No.	TD8201
Datasheet	TD8201 Download
Manufacturer	Techcode
Description	White LED Step-up Converter
Buy	Stock & Price

GENERAL DESCRIPTION

FEATURES

Because it directly regulates z 1.25MHz Fixed Switching Frequency output current, the TD8201 is ideal for driving light z Low 104mV Feedback Voltage emitting diodes (LEDs) whose light intensity is z Open Load Shutdown proportional to the current passing through them, not the z PWM Dimming voltage across their terminals. A single external resistor sets z SOT23‐6 Packages LED current between 2mA and 20mA, which can then be z RoHS compliant easily adjusted using either a DC voltage or a pulse width modulated (PWM) signal up to 100KHz. The TD8201 is available in SOT23‐6 packages. z Cell Phones z Handheld Computers and PDAs z Digital Cameras z Small LCD Displays December, 20, 2011 Techcode Semiconductor Limited 1 T echcode® White LED Step-up Converter Pin Assignments DATASHEET TD8201 Pin

DESCRIPTION

Pin Number Pin Name

DESCRIPTION

1 2 3 4 5 6 SW GND FB EN OV IN Power Switch Output. Connect the inductor and the blocking Schottky diode to SW. Ground Feedback input pin.