S1F81300M0A Epson Electronics America, Inc., S1F81300M0A Datasheet - Page 5

• Manufacturer Part Number: S1F81300M0A
• Description: Charge Pump Dc-dc Converter
• Manufacturer: Epson Electronics America, Inc.

1. OVERVIEW
2. FEATURES
● White LED of 1-3 lights (connected in parallel) lighted.
● Output current value can be set by CONT pin supply
● Low noise charge pump circuits.
● Output excess current protection function
● Soft start circuit to reduce inrush current at starting up.
● Regulated LED current with 3% matching between any two outputs.
● Small package
● Supply voltage range
● Maximum output voltage
● Shutdown current
● Quiescent current
● Switching frequency
● LED limit current
3. BLOCK DIAGRAM
S1F81300M0A (Rev.1.0)
The S1F8130 is a Doubler Charge Pump DC-DC Converter with built-in constant current circuit
(Independent 3ch.). Stable output supply can be realized by an input series regulator and an output side
charge pump. White LED of 1-3 lights connected in parallel can be lighted. Current variation among LED is
reduced due to the independent 3ch constant circuit. Current value sent to white LED can be set by supply
level of CONT pin. In addition, brightness can also be adjusted by controlling of CONT pin from D/A
converter output etc.
CONT
ENA
VSS
(SON10)
2.7 to 4.6V
5.0V
1.0μA (Max.)
3.5mA (Typ.)
500kHz (Typ.)
15 to 30mA (trimming)
VREF
OSC
CURRENT
LIMITER
-
+
START
EPSON
SOFT
AMP
DRIVER
CURRENT
CONTROL
SWITCH
MOS
VIN
C1P
DIN1
DIN2
DIN3
C1M
VOUT
1. OVERVIEW
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