Intelligent three-color LED driver
BU8770FV
Description Dimension (Units : mm)
Features
Applications
BU8770FV is a smart LED driver developed
for cellular phones. This driver generates
high-intensity LED driving voltage by stepping
up VDD 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.
00W151A
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
Cellular phones
April, 2001
0
.
1
5
–
0
.
1
0.22–0. 1
1
.
1
5
–
0
.
1
0.65
0
.
1
1 8
0.3Min.
0. 1
6
.
4
–
0
.
3
916
4
.
4
–
0
.
2
5.0–0.2
* Derating : 4.5mW/˚C for operation above Ta=25˚C
Absolute Maximum Ratings (Ta=25˚C)
Power supply voltage
Operating temperature range
Storage temperature range
Parameter Symbol
VDD
Tstg
Topr
Limits
6.0
–30 ~ +80
–40 ~ +125
Unit
˚C
˚C
V