TB62756FUG

TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic

TB62756FUG

Step-up Type DC/DC Converter for White LEDs

The TB62756FUG is a high efficiency step-up type DC/DC

converter that is designed especially for use as a constant current

driver of white LEDs.

It is possible to drive 2 - 6 white LEDs connected in series using a

lithium-ion battery.

This IC incorporates an N-ch-MOS transistor requiredfor

switching of an external inductor.

The forward current of the LEDs can be controlled by an external

resistor. A pulse input system (PWM) can be used as a brightness

control function.

This IC is best suited for use as a driver of white LED back

lighting in color LCDs in PDAs, cellular phones and handy

terminal devices.

This device is Pb-free product.

Features

• Can drive 2-6 white LEDs connected series

• Output Power : Available for 400mW LED loading

• High Efficiency : 87% @Maximum (Using recommended external parts: Typ. 4LEDs)

• IC Package : SSOP6-P-0.95 (SOT23-6)

• Switching Frequency : 1.1 MHz (Typ.)

Weight: 0.016 g (typ.)

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