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Diodes ZXSC400 User Manual

Zxsc400, Stdn gnd v, Drive sense v

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DESCRIPTION

The ZXSC400 is a voltage mode boost converter in the SOT23-6 package. Its low
feedback voltage allows the current in a chain of LEDs to be set and accurately
monitored with a single resistor giving minimal losses. Its excellent load and line
regulation means that for the full supply range from lithium-ion cells, the LED
current will typically change by less than 1%. Using high efficiency Zetex switching
transistors with ratings of 20V and higher allow many LEDs to be chained in series
for the best LED current matching possible.

FEATURES

1.8V to 8V supply range

Typical output regulation of

Ϯ1%

Over 80% typical efficiency

4.5

␮A typical shutdown current

Series connection for ultimate LED current matching

APPLICATIONS

White LED backlighting for colour LCD panels

General LED backlighting

High performance white LED flashlights

General LED driving from batteries

DEVICE MARKING

C400

ZXSC400

ISSUE 1 - JANUARY 2003

1

LED DRIVER BOOST CONVERTER

DEVICE

REEL

SIZE

TAPE

WIDTH

QUANTITY

PER REEL

ZXSC400E6TA

7“

8mm

3000 units

ORDERING INFORMATION

STDN

GND

V

CC

DRIVE

SENSE

V

FB

PINOUT

SOT23-6

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