SM8134A 查看數據表（PDF） - Nippon Precision Circuits
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SM8134A Datasheet PDF : 19 Pages
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BLOCK DIAGRAM
SM8134A
VIN
C1M C1P
C2M C2P
Charge pump
1/ 1.5
VOUT
SCK
SDA
EN
Thermal
shut down
UVLO
Output voltage
control
Control
logic
Current
control
&
Current
detect
DIN1
DIN2
DIN3
DIN4
DIN5
PIN DESCRIPTION
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
C1P
C1M
C2M
C2P
VIN
VOUT
DIN1
SDA
SCK
EN
DIN2
GND
DIN3
DIN4
DIN5
PGND
GND PGND
I/O
Description
–
Charge pump capacitor connection 1P
–
Charge pump capacitor connection 1M
–
Charge pump capacitor connection 2M
–
Charge pump capacitor connection 2P
–
Voltage supply
O
LED drive voltage output
O
LED drive current control output 1 (connect to ground when not used)
I
Serial data input
I
Serial data clock input
I
Serial interface enable input
O
LED drive current control output 2 (connect to ground when not used)
–
Ground
O
LED drive current control output 3 (connect to ground when not used)
O
LED drive current control output 4 (connect to ground when not used)
O
LED drive current control output 5 (connect to ground when not used)
–
Charge pump ground connection
SEIKO NPC CORPORATION —2
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