
Product Specification
Synchronous Rectifier Controller for Flyback Converter
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
V
CC
DC Supply Voltage*
SG6203
System General Corp.
Version 1.0.1 (IAO33.0010.B1)
- 4 -
www.sg.com.tw www.fairchildsemi.com
September 24, 2007
Value
25
Unit
V
I
OUT
Gate Output Current
500
mA
V
H
DET, OUT, VZ
-0.3 to 25.0
V
V
L
RT, IN+, IN-
-0.3 to 7.0
V
SOP8
400
P
D
Power Dissipation
DIP8
800
mW
SOP8
208.4
R
θ
JA
Thermal Resistance (Junction-to-Air)
DIP8
82.5
°
C/W
T
J
Operating Junction Temperature
150
°
C
T
STG
Storage Temperature Range
-65 to +150
°
C
T
L
Lead Temperature (Soldering, 10 Seconds)
300
°C
Electrostatic Discharge Capability, Human Body Model
2.0
KV
ESD
Electrostatic Discharge Capability, Machine Model
200
V
* All voltage values, except differential voltages, are given with respect to GND pin.
* Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
V
CC
DC Supply Voltage
Value
<20
Unit
V
T
A
Operating Ambient Temperature
-30~85
°C
R
T
Pulse Width of the One-shot Signal
12~36
K
Ω
ELECTRICAL CHARACTERISTICS
V
CC
=12V; R
T=
24K
Ω
; T
A=
25°C, unless otherwise noted.
Timing Control Section
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
RT
Voltage on RT Pin
1.14
1.20
1.26
V
R
T
=12K
Ω
6.5
7.5
8.5
μs
R
T
=24K
Ω
13
15
17
μs
T
RT
Pulse Width of the One-shot Signal
R
T
=36K
Ω
19.5
22.5
25.5
μs
△
T
RT
Adjustable Range of the Pulse Width
Compared to T
RT
R
T
=12K
Ω
;
R
T
=24K
Ω
;
R
T
=36K
Ω
+40
+60
+80
%
T
DEAD
Timing Margin Between Output Turn-off
(Output Falling) and Next Switching Cycle
Start (DET Rising)
200
1000
ns