sg6742tp Fairchild Semiconductor, sg6742tp Datasheet - Page 5

• Manufacturer Part Number: sg6742tp
• Description: Sg6742-highly Integrated Green-mode Pwm Controller
• Manufacturer: Fairchild Semiconductor

Highly Integrated Green-Mode PWM Controller
Oscillator Section
Symbol
F
t
F
F
F
* Hopping off at green-mode.
Feedback Input Section
Symbol
A
Z
V
V
t
V
V
© System General Corp.
Version 1.0.1 (IAO33.0083.B0)
HOP
D-OLP
OSC
OSC-G
DV
DT
FB
V
FB-OPEN
FB-OLP
FB-N
FB-G
Parameter
Frequency in Nominal Mode
Hopping Period
Green-Mode Frequency
Frequency Variation vs. V
Frequency Variation vs. Temp. Deviation
Parameter
Input Voltage to Current-Sense Attenuation
Input Impedance
Output High Voltage
FB Open-Loop Trigger Level
Delay Time of FB Pin Open Loop Protection
Green-Mode Entry FB Voltage
Green-Mode Ending FB Voltage
F
F
PWM Frequency
OSC
OSC-G
DD
Deviation
V
FB-G
Test Condition
Center Frequency
Hopping Range
V
T
Test Condition
FB pin open
A
DD
=-20 to 85°C
=11V to 22V
- 5 -
V
FB-N
www.sg.com.tw • www.fairchildsemi.com
Min.
1/4.5
4
5.5
5.0
53
1.9
Min.
62
±3.7
18
V
FB
Typ.
1/4.0
5.2
56
2.1
V
Typ.
65
±4.2
4.4
22
FB-N
-0.5
Product Specification
Max.
68
±4.7
25
5
5
Max.
1/3.5
7
5.4
59
2.3
September 24, 2007
SG6742
Unit
KHz
ms
KHz
%
%
Unit
V/V
kΩ
V
V
ms
V
V