S-8813 Datasheet, PDF (14/29 Pages) Seiko Instruments Inc – 3-CHANNEL WHITE LED DRIVER IC (CHARGE PUMP IC WITH BUILT-IN CONSTANT-CURRENT CIRCUIT)

3-CHANNEL WHITE LED DRIVER IC (CHARGE PUMP IC WITH BUILT-IN CONSTANT-CURRENT CIRCUIT)
S-8813 Series
Rev.2.1_00
2. Variable Voltage Type
White
LED
0.22 μF
IOUT1
ON/OFF
IOUT2
VISET
S-881300
BPE
IOUT3
CPOUT
C+
VIN
C−
GND
4.7 μF
Control signal
10 μF
0.5 to 1.8 V
Figure 14 Application Circuit 2 (S-881300BPE)
VIN=3.0 V, Ta=25°C
25
VIOUT=3.0 V
20
VIOUT=3.5 V
15
VIOUT=4.0 V
10
5
0
0.0 0.5 1.0 1.5 2.0 2.5
VVISET [V]
Figure 15 V_VISET Dependence (S-881300BPE)
19.0
VVISET=1.8 V, VIN=3.0 V, Ta=25°C, IOUT1
18.5
18.0
17.5
17.0
16.5
16.0
3.00
3.25
3.50
3.75
4.00
VIOUT [V]
Figure 16 V_IOUT Dependence (S-881300BPE)
14
Seiko Instruments Inc.