Diodes AP1694A - Manual (Page 3)

AP1694A
Document number: DS37094 Rev. 1 - 2
3 of 15
www.diodes.com
May 2014
© Diodes Incorporated
AP1694A
A Product Line of
Diodes Incorporated
N
E
W
P
R
O
D
U
C
T
N
E
W
P
R
O
D
U
C
T
Typical Applications Circuit
(Cont.)
T1
OUT
+
VCC FB
OUT
CS
GND
U1 AP1694A
C 3
R7
R5
R6
R4
D1
C4
R3
Q1
BD1
C1
L1
R8
D2
R1
RI
SGND
R2 R9
RF
L
N C2
Z1
Q2
F1
TVS1
D3
R10 C5
Typical Fly-back Application
Pin Descriptions
Pin Number Pin Name Function
1 NC No connection.
2 RI The initial on time setting resistor.
3 SGND Must connect to GND.
4 CS Primary current sensing.
5 FB The feedback voltage from auxiliary winding.
6 GND Ground.
7 OUT Gate driver output.
8 VCC Supply voltage of gate driver and control circuits of the IC.