參數(shù)資料
型號(hào): SG6901A
廠商: Fairchild Semiconductor Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: PFC / Flyback PWM Controller
中文描述: 功率因數(shù)校正/反激式PWM控制器
文件頁數(shù): 8/18頁
文件大?。?/td> 716K
代理商: SG6901A
Product Specification
PFC / Flyback PWM Controller
PWM-Current Sense
Symbol
Parameter
SG6901A
System General Corp.
Version 1.0.1 (IAO33.0062.B0)
- 8 -
www.sg.com.tw www.fairchildsemi.com
September 26, 2007
Test Conditions
Min.
Typ.
Max.
Unit
t
PD-PWM
V
LIMIT-1
V
LIMIT-2
t
LEB-PWM
Propagation Delay to Output
Peak Current Limit Threshold Voltage1
Peak Current Limit Threshold Voltage2
Leading-Edge Blanking Time
VDD=15V,OPWM<=9V
RANGE=Open
RANGE=Ground
V
S
=
V
SLOPE
x (T
on
/T)
V
S
: Compensation Voltage
Added to Current Sense
60
0.65
0.60
270
0.70
0.65
350
120
0.75
0.70
450
ns
V
V
ns
V
SLOPE
Slope Compensation
0.45
0.50
0.55
V
PWM Output Driver
Symbol
Parameter
V
Z-PWM
Output Voltage Maximum (Clamp)
V
OL-PWM
Output Voltage Low
V
OH-PWM
Output Voltage High
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
=20V
V
DD
=15V; I
O
=100mA
V
DD
=13V; I
O
=100mA
V
DD
=15V; C
L
=5nF; O/P=2V to
9V
16
18
V
1.5
V
8
V
t
R-PWM
Rising Time
30
60
120
ns
t
F-PWM
Falling Time
V
DD
=15V; C
L
=5nF; O/P=9V to
2V
30
50
110
ns
DCY
MAXPWM
Maximum Duty Cycle
73
78
83
%
OTP Section
Symbol
I
OTP
V
OTP-ON
V
OTP-OFF
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
OTP Pin Output Current
R
I
=24K
90
100
110
μA
Recovery Level on OTP
1.35
1.40
1.45
V
OTP Threshold Voltage
1.15
1.20
1.25
V
t
OTP
OTP Debounce Time
8
25
μs
Soft-Start Section
Symbol
I
SS
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Constant Current Output for Soft-Start
R
T
=24K
44
50
56
μA
R
D
Discharge R
DSON
470
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