STR5A162D Datasheet, PDF (6/21 Pages) Sanken electric – Off-Line PWM Controllers with Integrated Power MOSFET

STR5A100D Series
5. Functional Block Diagram
VCC
2
UVLO
REG
PWM
OSC
SQ
R
FB
1
S/H
E/A
OVP
TSD
STARTUP
PROTECTION
DRV
OCP
D/ST ₄
Feedback
Control
COMP
8
LEB
S/GND
5, 6, 7
6. Pin Configuration Definitions
FB ₁
Pin
8 ^COMP
1
VCC 2
D/ST 4
7 ^S/GND
2
3
6 S/GND
4
5 S/GND
5
6
7
8
Name
FB
VCC
–
D/ST
Descriptions
Input of constant voltage control signal
Power supply voltage input for Control Part and
input of Overvoltage Protection (OVP) signal
(Pin removed)
MOSFET Drain and input of startup current
S/GND MOSFET Source and ground
COMP Input of phase compensation
7. Typical Application Circuit
VAC
BR1
L1
T1
D50
VOUT
C1
C2
U1
S/GND
5
D/ST
4
C3
R1
P
R2
D1
R51 C51
S1
C52 R52
C6 C5
R7
S/GND
6
S/GND
7
VCC
2
8 ^COMP
FB ₁
STR5A100D
D2 R6
C4
R3 _D
R4
GND
R5
STR5A100D-DS Rev.1.2
SANKEN ELECTRIC CO.,LTD.
6
Dec. 25, 2013