s-8813 Seiko Instruments Inc., s-8813 Datasheet - Page 24

• 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.

1. Power-Off Pin Response
3. Power Supply Voltage Transition
5. Current Setting Switching
7. Ripple Characteristics (COUT 10 μ F)
24
3-CHANNEL WHITE LED DRIVER IC (CHARGE PUMP IC WITH BUILT-IN CONSTANT-CURRENT CIRCUIT)
S-8813 Series
Transient Response Characteristics Examples
3.50
3.40
3.30
3.20
3.10
3.00
Output Current
Output Current
Input Voltage
Output Current
[5 mA / div]
[1.5 V / div]
Input Voltage
[10 mA / div]
[5 mA / div]
Pin Voltage
[5 kΩ / div]
[3 V / div]
[1 V / div]
IOUT
R
1
10 kΩ
3.0 V
0 V
t [20 μ s / div ]
I
5.1 kΩ
OUT
4.5 V
3.0 V
=10 mA/ch, V
t [200 μs / div]
t [200 μs / div]
t [500 μs / div]
V
I
OUT
IOUT
IN
= 4.5 V
V
V
V
IN
IOUT
IOUT
= 3.0 V
0.015
0.013
0.011
0.009
0.007
0.005
= 3.5 V
= 3.5 V
V
I
OUT
IOUT
Seiko Instruments Inc.
2. Power Supply Application
4. Power Supply Voltage Transition
6. Current Setting Switching
8. Ripple Characteristics (COUT 4.7 μ F)
3.50
3.40
3.30
3.20
3.10
3.00
Output Current
Output Current
Output Current
Input Voltage
Input Voltage
[10 mA / div]
[1.5 V / div]
[5 mA / div]
Pin Voltage
[5 mA / div]
[3 V / div]
[1 V / div]
[5 kΩ / div]
IOUT
R
1
5.1 kΩ
4.5 V
0 V
t [20 μs / div]
I
OUT
10 kΩ
3.0 V
3.0 V
= 10 mA/ch, V
t [500 μs / div]
t [200 μs / div]
t [200 μs / div]
V
I
OUT
IOUT
IN
= 4.5 V
V
V
Rev.2.1
IOUT
IOUT
V
V
IOUT
IN
= 3.5 V
= 3.5 V
= 3.0 V
0.015
0.013
0.011
0.009
0.007
0.005
I
OUT
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