SGM3131 Datasheet, PDF (4/13 Pages) SG Micro Corp – Driver with Low Dropout Current Source

SGM3131
120mA 4-Channel Charge Pump White LED
Driver with Low Dropout Current Source
FUNCTION BLOCK DIAGRAM
C1P C1N C2P C2N
VIN
EN
GND
1×/1.5×
Charge Pump
Gate Driver
UVLO
16 Steps Pulse
Dimming Controller
Soft Start
Shutdown Delay
1MHz OSC
OVP
Low Dropout
Current Source
VOUT
ISET
LED1
LED2
LED3
LED4
SG Micro Corp
4
www.sg-micro.com