SM8136A Datasheet, PDF (2/15 Pages) Nippon Precision Circuits Inc – White LED Driver IC

BLOCK DIAGRAM
VIN
SM8136A
C1M C1P C2M C2P
Charge pump
1/ 1.5
VOUT
Mode control
&
Output voltage control
&
Protection
EN
Control
logic
Current
control
&
Current
detect
DIN1
DIN2
DIN3
PIN DESCRIPTION
Number
1
2
3
4
5
6
7
8
9
10
11
12
Name
C1M
C2M
C2P
C1P
VOUT
EN
DIN3
DIN2
DIN1
NC
PGND
VIN
NC
GND
(open at any time)
I/O
Description
–
Charge pump boost capacitor connection 1M
–
Charge pump boost capacitor connection 2M
–
Charge pump boost capacitor connection 2P
–
Charge pump boost capacitor connection 1P
O
LED drive voltage output
I
Enable/LED drive current setting (High active)
O
LED drive current control output 3 (connect to ground when not used)
O
LED drive current control output 2 (connect to ground when not used)
O
LED drive current control output 1 (connect to ground when not used)
–
No connection
–
Ground
–
Supply voltage input
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