AP3152

120mA HIGH EFFICIENCY WHITE LED DRIVER

AP3152 Rev. 1

1 of 11

SEPTEMBER 2007

www.diodes.com

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Up to 88% Max power efficiency

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Wide input voltage range: 2.7V ~ 5.5V

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1x, 1.5x, and 2x charge-pump modes

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Drive up to 4 white LEDs

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120mA maximum output current through 4 channels

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Programmable switching frequency, default 1.2MHz

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Up Spread Spectrum Control with 10% frequency

deviation

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1-wire Serial Digital Interface (SDI) or

PWM for dimming control

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Soft-start during power-up and mode

switching

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Soft-stop during shutdown

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Short-circuit protection

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Over-voltage protection and under-voltage lockout

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Low quiescent current < 1

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Industry-leading low profile package

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Lead Free package: DFN3030-12

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DFN3030-12: Available in “Green” Molding Compound

(No Br, Sb)

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Lead Free Finish / RoHS Compliant (Note 1)

The AP3152 is a high efficiency charge-pump white LED driver

with 1x, 1.5x, 2x operating modes. The AP3152 operates on

power supplies from 2.7v to 5.5v.

It drives up to four channels of

white LEDs while the intensity of each channel is configured by

varying the respective current levels. Each channel can supply up

to 30mA current. Up to four channels can be ganged together to

provide maximum load current of 120mA.

The Serial Digital Interface (SDI) provides the capability to

configure the current for each LED channel. Some of other key

features, such as Up Spread Spectrum Control, different

charge-pump switching frequencies (0.6MHz/1.2MHz/1.8MHz),

and PWM dimming control, can also be programmed through the

interface.

The AP3152 has built-in soft-start circuit to minimize the inrush

current during power-up and mode switching. Various protections

such as short-circuit, over-voltage, under-voltage, and thermal

shutdown are integrated to ensure system reliability. The

quiescent current of AP3152 during shutdown is less than 1

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Mobile Phone

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PDA (Personal Digital Assistant)

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White LED Backlighting

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Camera Flash LED Lighting

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LCD Modules

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Portable Devices

Ordering Information

Package

F : DFN3030-12

AP 3152 X X X

Packing

-7 : Taping

Lead Free

G : Green

Note:

1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.

7” Tape and Reel

Device

Package Code

Packaging

(Note 2)

Quantity

Part Number Suffix

AP3152F

F

DFN3030-12

3000/Tape & Reel

-7

Note:

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

Features

General Description

Applications