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AP3152 Datasheet

120mA HIGH EFFICIENCY WHITE LED DRIVER

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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
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 quiescent current < 1µA
Industry-leading low profile package
Lead Free package: DFN3030-12
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 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 1µA.
Applications
Mobile Phone
PDA (Personal Digital Assistant)
White LED Backlighting
Camera Flash LED Lighting
LCD Modules
Portable Devices
Ordering Information
AP 3152 X X X
Package
F : DFN3030-12
Lead Free
G : Green
Packing
-7 : Taping
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
AP3152F
Package Code
F
Packaging
(Note 2)
DFN3030-12
7” Tape and Reel
Quantity
Part Number Suffix
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
http://www.diodes.com/datasheets/ap02001.pdf.
AP3152 Rev. 1
1 of 11
www.diodes.com
SEPTEMBER 2007
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

AP3152 Datasheet

120mA HIGH EFFICIENCY WHITE LED DRIVER

No Preview Available !

www.DataSheet4U.com
Pin Assignment
AP3152
120mA HIGH EFFICIENCY WHITE LED DRIVER
( Top View )
D4
SDI
C1P
C1N
VOUT
C2P
1
2
3
4
5
6
Exposed
Pad
12 D3
11 D2
10 D1
9 GND
8 VIN
7 C2N
DFN3030-12
Pin Descriptions
Symbol
D4
SDI
C1P
C1N
VOUT
C2P
C2N
VIN
GND
D1
D2
D3
GND
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
EP PAD
Description
Current Sink Input #4. Connect to VOUT when un-used.
1-wire Serial Digital Interface Input / PWM input
Positive Terminal of Flying Capacitor. Connect a 1µF capacitor between C1P and
C1N.
Negative Terminal of Flying Capacitor.
The charge pump output voltage to drive load circuit. Connect a 1µF capacitor
between this pin and ground.
Positive Terminal of Flying Capacitor. Connect a 1µF capacitor between C2P and
C2N.
Negative Terminal of Flying Capacitor.
Input Power Source. Connect a 1µF capacitor between this pin and ground.
Ground.
Current Sink Input #1. Connect to VOUT when un-used.
Current Sink Input #2. Connect to VOUT when un-used.
Current Sink Input #3. Connect to VOUT when un-used.
Exposed Pad (bottom). Connect to ground underneath the package.
AP3152 Rev. 1
2 of 11
www.diodes.com
SEPTEMBER 2007
© Diodes Incorporated


Part Number AP3152
Description 120mA HIGH EFFICIENCY WHITE LED DRIVER
Maker Diodes Incorporated
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AP3152 Datasheet PDF






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