Product Specification
Highly-Integrated Green-Mode PWM Controller
SG6846
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
L
P
D
R
Θ
J-C
T
J
T
STG
T
L
Parameter
Supply Voltage
Input Voltage to VIN, FB, SENSE, RT, RI Pin
Power Dissipation
Thermal Resistance
Operating Ambient Temperature
Storage Temperature Range
Lead Temperature (Soldering)
Test Condition
Value
25
-0.3 to 7V
Unit
V
V
mW
°C/W
°C
°C
°C
at T
A
< 50°C
Junction-Case
DIP
SOP
DIP
SOP
800
400
67.1
41.2
-40 to 125
-65 to +150
10 sec
10 sec
DIP
SOP
260
230
*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 JUNCTION TEMPERATURE: -30°C ~ 85°C*
*For proper operation
ELECTRICAL CHARACTERISTICS (VDD = 15V, T
A
= 27°C, unless noted)
VDD Section
Symbol
V
OP
V
TH-ON
V
TH-OFF
I
DD-ST
I
DD-OP
V
DD-OVP
T
VDD-OVP
I
DD-OVP
V
DD-TH-G
Parameter
Continuously Operating Voltage
On Threshold Voltage
Off Threshold Voltage
Start-Up Current
Operating Supply Current
VDD Over Voltage Protection (Latch off)
VDD OVP Debounce Time
VDD OVP Latch-up Holding Current
VDD Low-threshold Voltage to Exit Green-OFF
Mode
Test Condition
Min.
15.5
9.5
Typ.
16.5
10.5
8
3.7
Max.
20
17.5
11.5
30
5
24.6
Unit
V
V
V
uA
mA
V
usec
uA
V
VDD = 15V
GATE Open
22.6
RI = 26KΩ
VDD = 5V, T
A
= 27 C
o
23.6
100
45
V
TH(OFF)
+
1.25
VIN Section
Symbol
V
IN-OFF
V
IN-ON
Parameter
PWM Turn-off Threshold Voltage
PWM Turn-on Threshold Voltage
Test Condition
Min.
0.67
Typ.
0.72
V
IN-OFF
+
0.2
Max.
0.77
Unit
V
V
Feedback Input Section
Symbol
A
V
Z
FB
V
FB0
Parameter
Input-Voltage to Current-Sense Attenuation
Input Impedance
FB Pin open voltage
Test Condition
Min.
4
Typ.
1/4.2
5.5
6.2
Max.
7
Unit
V/V
KΩ
V
© System General Corp.
Version 1.0(IAO33.0008.B0)
-4-
www.sg.com.tw
Sep. 30, 2004
ETC [ ETC ]
