00W151A
Intelligent three-color LED driver
BU8770FV
Description
BU8770FV is a smart LED driver developed
for cellular phones. This driver generates
high-intensity LED driving voltage by stepping
up V
DD
in DC/DC converter with using the clock
of the built-in oscillator. Each brightness of
RGB color can be adjusted independently
in 128 steps by PWM control.
Dimension (Units : mm)
5.0
鹵
0.2
16
9
6.4
鹵
0.3
4.4
鹵
0.2
1. 15
鹵
0.1
1
8
0. 1
0.65
0.22
鹵
0. 1
0.3Min.
0. 1
Features
1) 128 steps PWM brightness control
for each three color independently
2) DC/DC converter for LED driving
3) Low consumption stand-by circuit
4) Small SSOP-B16 package
SSOP-B16
Applications
Cellular phones
Absolute Maximum Ratings (Ta=25藲C)
Parameter
Power supply voltage
Operating temperature range
Storage temperature range
鈭?/div>
Derating : 4.5mW/藲C for operation above Ta=25藲C
Symbol
V
DD
Topr
Tstg
Limits
6.0
鈥?0 ~ +80
鈥?0 ~ +125
Unit
V
藲C
藲C
April, 2001
0.15
鹵
0. 1
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