Ap3156, Pin descriptions, Functional block diagram – Diodes AP3156 User Manual
Page 3
AP3156
HIGH EFFICIENCY 1X/1.5X/2X CHARGE PUMP
FOR WHITE LED APPLICATIONS
AP3156 Rev. 1
3 of 15
SEPTEMBER 2009
©
Diodes Incorporated
Pin Descriptions
Pin Name
Pin
Number
Description
D6
1
Current Sink Input #6. Connected to V
OUT
when un-used.
SDI
2
Serial Digital Interface Control Pin
NC 3
No
Connection
V
OUT
4
Charge pump output to drive load circuit. Requires 1µF capacitor connected between
this pin and ground
C2
P
5
Positive Terminal of Flying Capacitor 2. Connects a 1µF capacitor between C2
P
and
C2
N
.
C1
P
6
Positive terminal of Flying Capacitor 1. Connects a 1µF capacitor between C1
P
and
C1
N
.
C1
N
7
Negative Terminal of Flying Capacitor 1
C2
N
8
Negative Terminal of Flying Capacitor 2
GND 9,
11
Ground.
V
IN
10
Input Power Supply. Requires 1µF capacitor between this pin and ground.
D1
12
Current sink input #1. Connected to V
OUT
when un-used.
D2
13
Current sink input #2. Connected to V
OUT
when un-used.
D3
14
Current sink input #3. Connected to V
OUT
when un-used.
D4
15
Current sink input #4. Connected to V
OUT
when un-used.
D5
16
Current sink input #5. Connected to V
OUT
when un-used.
GND
EP PAD Exposed Pad (bottom). Connected to GND directly underneath the package.
Functional Block Diagram