BU8770FV Datasheet, PDF (2/2 Pages) List of Unclassifed Manufacturers – Intelligent three-color LED driver

Electrical characteristics (Unless otherwise noted; Ta=25˚C, VDD=3.60V, VDD3V=3.05V)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Whole
Power supply voltage
VDD
3.15 3.60 4.80
V
(Current consumption)
Reference voltage
IDDS
VDD3V
—
2.80
0.1
3.05
1
3.20
µA Stand-by mode ∗1
V 3V reference voltage
(Current consumption)
IDD3V0
—
0.1
1
µA Stand-by mode
IDD3V1
—
30
60
µA Normal operating mode
DC/DC converter
Output voltage
Output current
VOUT
IOUT
1.574VDD3V ± 5%
—
— 40
V ∗2
mA VOUT=4.8V
Capacitor capacitance
CAP1
0.22 ± 20%
µF
CAP_0
4.7 ± 20%
µF
∗1 : IDDS is current consumption at the time when NSTBY=L, DATA=L, CLK=L, and NRST=H.
∗2 : VOUT=1.574X3.05=4.8007V when the output voltage is VDD3V=3.05
(VOUT=4.4072V when the output voltage is VDD3V=2.80V, VOUT=5.0368V when the output voltage is VDD3V=3.20V)
Block Diagram
NSTBY
NRST
DATA
CLK
STRB
OSC
CAP1
CAP1N CAP1P
DC/DC CONV.
RECEIVE BUF.
1/n
7bit counter
ADDR
DEC.
VDD3V
PWM R DRIVER
PWM G DRIVER
CONTROL REG.
R REG.
G REG.
B REG.
PWM B
DRIVER
Digital
Analog
VDD3V DVSS VDD AVSS
DC_OUT
CAP_O
ROUT
GOUT
BOUT
PVSS
0.1µF
4.7µF