LM3639A
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ti.
com
SNVS964 – MARCH 2013
LM3639A Single Chip 40V Backlight + 1.
5A Flash LED Driver
Check for Samples: LM3639A
FEATURES
1
•2 Single Chip White LED Flash and Backlight Driver
• 1.
5A Flash LED Current • Dual String Backlight Control (40V Max VOUT) • 128 Level Exponential and Linear Brightness
Control • PWM Input for CABC • Programmable Over-Voltage Protection
(Backlight) • Programmable Current Limit (Flash) • Programmable Switching Frequency • Optimized Flash Current During Low-Battery
Conditions
APPLICATIONS
• White LED Backlit Display Power • White LED Camera Flash Power
L(B)
Schottky L(F)
VOUTB up to 40V
COUTB
2.
5V - 5.
5V
CIN
SWF SWB OVP VIN OUTF
COUTF
LM3639A
EN SC...