Pin descriptions, Ap1690, A product line of diodes incorporated – Diodes AP1690 User Manual
Page 2: Isolated
AP1690
Document number: DS36469 Rev.
2 - 2
2 of 9
May 2014
© Diodes Incorporated
AP1690
A Product Line of
Diodes Incorporated
N
E
W
P
R
O
D
U
C
T
Typical Applications Circuit
(Cont.)
VCC
DIM
PD
GND
CS
OUT
FB
L
N
LED+
LED -
R1
C1
A
P
1
6
9
0
ZD1
BD1
D1
L1
R2
C2
R3
C3
C4
R4
R5
R6
C5
D2
D3
R7
C6
R8
R9
R10
R11
C7
R12
R13
R14
R15
R16
R17
C8
C9
D4
D5
R18
R19
R20
Q1
D6
C10
R21
CY1
T1
Q2
+
3
2
6
4
7
5
8
Isolated
Pin Descriptions
Pin Number
Pin Name
Function
1
NC
No connection
2
PD
The rectified input voltage sensing pin. The pin is detecting the phase of dimmer
3
DIM
The rectified input voltage sensing pin. The pin is detecting the average AC input voltage
4
CS
Primary current sensing
5
FB
This pin captures the feedback voltage from the auxiliary winding. FB voltage is used to control no
load output voltage and determine acceleration stop point at start-up phase
6
GND
Ground. Current return for gate driver and control circuits of the IC
7
OUT
Gate driver output
8
VCC
Supply voltage of gate driver and control circuits of the IC