tca62735aflg TOSHIBA Semiconductor CORPORATION, tca62735aflg Datasheet

Manufacturer Part Number

tca62735aflg

Description

Charge Pump Type Dc/dc Converter For White Led Driver

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TCA62735AFLG.pdf (18 pages)

Charge Pump type DC/DC Converter for White LED Driver

The TCA62735AFLG is a charge pump type DC/DC Converter

specially designed for constant current driving of White LED.

This IC can outputs LED current 120mA or more to 2.8-4.2V input.

This IC observes the power-supply voltage and the output voltage,

and does an automatic change to the best of step up mode 1, 1.5 or

2 times. It is possible to prolong the battery longevity to its

maximum.

This IC is especially for driving back light white LEDs in LCD of PDA,

Cellular Phone, or Handy Terminal Equipment.

This device is Pb-free product.

Characteristics

•

Fabricating with CMOS Process

Package : VQFN16-P-0404-0.65

Input Voltage : 2.8V (Min)

Switching Frequency : 1MHz (Typ.)

Output Drive Current Capability : Greater than 120mA

4 Channels Built in Constant Sink Current Drivers (3 or 4 LEDs can be driven.)

Sink Current Adjustment by External Resistance

Soft Start Function

Output Open Detection Function

Thermal Shut Down Function (TSD)

TOSHIBA CMOS INTEGRATED CIRCIUTS SILICON MONOLITHIC

TCA62735AFLG

1/18

Weight: 0.016 g (Typ.)

VQFN16-P-0404-0.65

TCA62735AFLG

2007-06-21