s-8813 Seiko Instruments Inc., s-8813 Datasheet - Page 13

• 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.

Rev.2.1
Application Circuit Examples
30
25
20
15
10
1. Variable Current Setting Resistance Type
*1. Current setting resistance
Figure 12 R
5
0
0
3-CHANNEL WHITE LED DRIVER IC (CHARGE PUMP IC WITH BUILT-IN CONSTANT-CURRENT CIRCUIT)
V
White
_00
LED
IOUT
=4.0 V
5
1
*1
V
V
Dependence (S-881300CPE)
IOUT
IOUT
R
1
*1
=3.0 V
=3.5 V
10
[k Ω ]
V
IN
0.22 μF
=3.0 V, Ta=25 ° C
Figure 11 Application Circuit 1 (S-881300CPE)
15
20
IOUT1
IOUT2
IOUT3
C+
C−
S-881300
Seiko Instruments Inc.
CPE
ON/ OFF
CPOUT
RISET
GND
VIN
Figure 13 V
19.0
18.5
18.0
17.5
17.0
16.5
16.0
3.00
4.7 μF
IOUT
3.25
R
1
=5.6 k Ω , V
Dependence (S-881300CPE)
V
IOUT
3.50
10 μF
[V]
IN
=3.0 V, Ta=25 ° C
3.75
S-8813 Series
Control
R
5.6 kΩ to
20 kΩ
signal
4.00
1
*1
=
13