SGM3736 Datasheet, PDF (3/12 Pages) SG Micro Corp – PWM Dimming, 38V Step-Up LED Driver

SGM3736
PWM Dimming, 38V Step-Up LED Driver
PIN CONFIGURATION (TOP VIEW)
SGM3736
PGND 1
VIN 2
EN/PWM 3
GND 4
8 SW
7 VOUT
6 FB
5 RSET
PIN DESCRIPTION
TDFN-2×2-8L
PIN
1
2
3
4
5
6
7
8
Exposed
Pad
NAME
PGND
VIN
EN/PWM
GND
RSET
FB
VOUT
SW
GND
FUNCTION
Power Ground.
Supply Input.
Enable Control and PWM Dimming Input. It is a multi-functional pin which can be used for
enable control and digital PWM dimming.
Ground.
RSET Pin. Connect one resistor from RSET pin to GND to program the maximum white
LED current.
Feedback Input. Connect this pin to the cathode of the white LED.
Output and Over-Voltage Protection Pin.
Switch Output. Connect this pin to the inductor and the Schottky diode.
Exposed pad should be soldered to PCB board and connected to GND.
TYPICAL APPLICATION
Input Range
2.7V~5.5V
C_IN
PWM Dimming
L
D1
2
8
VIN
SW
VOUT ⁷
3
SGM3736
EN/PWM
FB
6
1kΩ
GND PGND RSET ⁵
4
1
R_SET
Up to 38V Output
C_OUT
White LEDs
Up to 10 in series
Or up to 10S4P
SG Micro Corp
3
www.sg-micro.com