s-8813 Seiko Instruments Inc., s-8813 Datasheet - Page 14

• Manufacturer Part Number: s-8813
• Description: 3-channel White Led Driver Ic Charge Pump Ic With Built-in Constant-current Circuit
• Manufacturer: Seiko Instruments Inc.

14
3-CHANNEL WHITE LED DRIVER IC (CHARGE PUMP IC WITH BUILT-IN CONSTANT-CURRENT CIRCUIT)
S-8813 Series
Figure 15 V
2. Variable Voltage Type
25
20
15
10
5
0
0.0
White
LED
0.5
VISET
V
V
1.0
IOUT
Dependence (S-881300BPE)
VISET
=3.5 V
V
IOUT
V
[V]
0.22 μF
IN
1.5
=3.0 V, Ta=25 ° C
=3.0 V
Figure 14 Application Circuit 2 (S-881300BPE)
V
IOUT
2.0
=4.0 V
C+
C−
IOUT1
IOUT2
IOUT3
2.5
S-881300
BPE
Seiko Instruments Inc.
ON/OFF
CPOUT
VISET
GND
VIN
Figure 16 V
19.0
18.5
18.0
17.5
17.0
16.5
16.0
4.7 μF
3.00
V
VISET
IOUT
=1.8 V, V
3.25
Dependence (S-881300BPE)
10 μF
V
IN
IOUT
3.50
=3.0 V, Ta=25°C, I
[V]
Control signal
3.75
0.5 to 1.8 V
Rev.2.1
OUT1
4.00
_00