AP3152FG-7【PDF 1/13 页】IC LED DRVR WHITE BCKLGHT 12-DFN

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AP3152

120mA HIGH EFFICIENCY WHITE LED DRIVER

Features

General Description

Up to 88% Max power efficiency

Wide input voltage range: 2.7V ~ 5.5V

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

Drive up to 4 white LEDs

Default maximum current setting: 20mA each channel

120mA maximum output current through 4 channels

Programmable switching frequency, default 1.2MHz

Up Spread Spectrum Control with 10% frequency

deviation

1-wire Serial Digital Interface (SDI) or

PWM for dimming control

Soft-start during power-up and mode

switching

Soft-stop during shutdown

Short-circuit protection

Over-voltage protection and under-voltage lockout

Low shutdown current < 1 μ A

Industry-leading low profile package

DFN3030-12: Available in “Green” Molding Compound

(No Br, Sb)

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 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 a 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 μ A.

Applications

Mobile Phone

PDA (Personal Digital Assistant)

White LED Backlighting

Camera Flash LED Lighting

LCD Modules

Portable Devices

Ordering Information

AP 3152 F G - 7

Package

F : DFN3030-12

Green

G : Green

Packing

7 : Tape & Reel

Device

Package Code

Packaging

(Note 2)

Quantity

7” Tape and Reel

Part Number Suffix

AP3152FG-7

DFN3030-12

3000/Tape & Reel -7

Notes:

1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html .

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

http://www.diodes.com/datasheets/ap02001.pdf

AP3152 Rev. 3

1 of 13

FEBRUARY 2009

www.diodes.com

Diodes Incorporated

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