SM8122A Datasheet, PDF (3/13 Pages) Nippon Precision Circuits Inc – White LED Driver IC

BLOCK DIAGRAM
SW
SM8122A
VOUT
VDD
OVP
COMP
FB
ERR
Buff
PWM
COMP
AMP
CE
VSS
PIN DESCRIPTION
Number
SOT23-6W
MSON-6
1
2
2
6
3
4
4
3
5
5
6
1
1. Input with built-in pull-down resistor
Name
SW
VOUT
FB
CE
VSS
VDD
RAMP
GENERATOR
OSC
VREF
SOFT
START
I/O
Description
O
Coil switching
I
Output voltage detection
I
Feed back (Output current detection)
Ip¹
Chip enable (High active)
–
GND
–
Power supply
NIPPON PRECISION CIRCUITS INC.—3