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參數資料
| 型號： | NCP1927DR2G |
| 廠商： | ON Semiconductor |
| 文件頁數： | 9/24頁 |
| 文件大小： | 531K |
| 描述： | IC CTLR PFC/FLYBACK 16-SOIC |
| 標準包裝： | 2,500 |
| 系列： | * |
NCP1927
http://onsemi.com
9
ELECTRICAL CHARACTERISTICS (V
CC
= 12 V, V
PFB
= 2.4 V, V
POVUV
= 2.3 V, V
PControl
= 4 V, V
PZCD
= 0 V, V
PCS
= 0 V, V
GTS
=
1 V, V
PSKIP
= 0 V, V
FFB
= 2.4 V, V
FCS
= 0 V, V
Shutdown
= 0 V, V
IENABLE
= open, C
PCT
= 1 nF, C
PDRV
= 1 nF, C
FDRV
= 1 nF, for typical
values T
J
= 25癈, for min/max values, T
J
is 25癈 to 125癈, unless otherwise noted)
Characteristics
Unit
Max
Typ
Min
Symbol
Test Condition
PFC FAULT PROTECTION
Overvoltage Protection Threshold
V
OVP
2.450
2.500
2.550
V
Overvoltage Protection Hysteresis
V
OVP(HYS)
20
40
60
mV
Overvoltage Protection Filter Delay
t
delay(OVP)
30
ms
Undervoltage Protection Threshold
V
UVP
285
300
315
mV
Undervoltage Protection Hysteresis
V
UVP(HYS)
20
40
60
mV
Undervoltage Protection Filter Delay
t
delay(UVP)
30
ms
UVP Pull Down Current Source
I
UVP
0.7
1.0
1.3
mA
Ratio Between V
OVP
and V
REF
(Note 3)
V
OVP
/V
REF
99.5
100.0
100.5
%
INVERTER ENABLE/REFERENCE
Disable Threshold
V
disable
1.809
1.865
1.921
V
Disable Filter Delay
t
delay(disable)
30
ms
Voltage Reference
I
IENABLE(SRC)
= 8 mA
I
IENABLE(SRC)
= 1 mA
I
IENABLE(SNK)
= 250 mA
V
IENABLE(high)
V
IENABLE(high)
V
IENABLE(low)
4.5
4.7
5.0
5.0
60
5.4
5.4
120
V
V
mV
Reference Pin Decoupling Capacitor
C
REF
0
1
mF
THERMAL PROTECTION
Thermal Shutdown
T
TSHDN
150
癈
Thermal Shutdown Delay
t
delay(TSHDN)
30
ms
SHUTDOWN PIN
Shutdown Threshold
V
Shutdown
Increasing
V
SHDN
0.90
1.00
1.10
V
Shutdown Filter Delay
V
Shutdown
Increasing
t
delay(SHDN)
30
ms
Pull Up Current Source
I
Shutdown
2.3
3.3
4.3
mA
3. Guaranteed by design
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