sg6846aftp Fairchild Semiconductor, sg6846aftp Datasheet - Page 6

• Manufacturer Part Number: sg6846aftp
• Description: Sg6846a ? Highly Integrated Green-mode Pwm Controller
• Manufacturer: Fairchild Semiconductor

Highly Integrated Green-Mode PWM Controller
PWM OUTPUT SECTION
Symbol
OVER-TEMPERATURE PROTECTION SECTION
Symbol
RI SECTION
Symbol
© System General Corp.
Version 1.1.2 (IAO33.0059.B2)
DCY
V
V
t
t
V
I
V
t
RI
R
F
RT
D-OTP
GATE-L
GATE-H
GATE-CLAMP
RTTH
NOR
MAX
65kHz
Parameter
Parameter
Protection
Parameter
+1.45KHz
22.5kHz
Maximum Duty Cycle
Output Voltage Low
Output Voltage High
Rising Time
Falling Time
Gate Output Clamping Voltage
Output Current of RT Pin
Threshold Voltage for Over-Temperature
Over-Temperature Latch-Off Debounce
RI Operating Range
-1.45KHz
+4.2KHz
-4.2KHz
Frequency
V
FB-G
- 6 -
V
Test Condition
Test Condition
Test Condition
V
V
GATE=1nF
GATE=1nF
V
R
R
FB-N
DD
DD
DD
I
I
=26KΩ
=26KΩ
=15V, I
=12V, I
=20V
O
O
=50mA
=50mA
www.sg.com.tw • www.fairchildsemi.com
Min.
Min.
Min.
8
64
1.015
13
Typ.
350
50
Typ.
Typ.
70
1.065
100
Product Specification
V
Frequency
FB
PWM
November 2, 2007
Max.
90
1.5
18
Max.
Max.
76
1.115
36
SG6846A
Unit
%
V
V
ns
ns
V
Unit
Unit
µA
V
ms
kΩ