EV3332-C-00A
Dual channel, 1.5A/Ch Flash LED Driver
With I
2
C Interface
Evaluation Board
EV3332-C-00A Rev.1.0 www.MonolithicPower.com 1
8/14/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP3332 is a dual-channels flash LED driver
with very compact package, high efficiency for
high-resolution camera phones to improve image
and video quality in low light environment. The
synchronous boost converter operates in
1/2/3/4MHz to provide an optimized solution for
smaller PCB space and higher ef ficiency.
The MP3332 features standard I
2
C interface,
dual LED channels, rich protection modes and
high power density and performances. The
MP3332 supports flash/assist
light/torch/indicator/5V DC modes.
The cathodes of the dual flash LED are
referenced to GND for better layout to improve
thermal performance. It is available in WLCSP16-
1.65X1.65mm packa ge.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input Voltage V
IN
2.7-5.5 V
Output Voltage Vout <5.5 V
LED channel 2
LED Current/Ch I
LED
1500 mA
FEATURES
• 2.7V~5.5V input voltage
• Dual-channels, 1.5A/ch flash current with
+/-7% accuracy
• 1/2/3/4MHz selectable switching frequency
and switching frequency fold-back function
• 400kHz I
2
C compatible interface
• Standby/Flash/Assist/Torch/Indicator/5V DC
modes
Flash Mode:
Up to 1.5A programmable current with +/-
7% accuracy for each LED
Assist/Torch Mode:
Up to 500mA/ch programmable current with
+/-7% accuracy
Indicator Mode:
Work in 31.5kHz PWM operation with 2/16,
3/16, 4/16, 5/16 duty cycle
128ms/256ms/512ms selectable blinking
time
5V DC Mode:
Constant 5V DC Output
• External Torch/Strobe Pin
• LED forward voltage balance to improve
efficiency
• 1A to 4.2A programmable input DC current
limit protection
• Low battery voltage protection
• LED short/open protection
• Over voltage protection
• Over temperature protection
• Input under voltage lockout protection
• Ava ilable in WLCSP16-1.65X1.65mm
APPLICATIONS
• LED Flash Application For Smart Phone
• Camera For Tablets
• Digital Still Camera
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. Fo
MPS green status, please visit MPS website under Quality Assurance. “MPS”
and “The Future of Analog IC Technology” are Registered Trademarks o
Monolithic Power Systems, Inc.
