NCP1612B(2016) Просмотр технического описания (PDF) - ON Semiconductor
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NCP1612B Datasheet PDF : 33 Pages
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NCP1612A, NCP1612B, NCP1612A1, NCP1612A2, NCP1612A3, NCP1612B2
Table 3. TYPICAL ELECTRICAL CHARACTERISTICS (continued)
(Conditions: VCC = 15 V, TJ from −40°C to +125°C, unless otherwise specified)
Symbol
Rating
Min
Typ
FEED-BACK OVER AND UNDER-VOLTAGE PROTECTION (SOFT OVP AND UVP)
RsoftOVP
Ratio (soft OVP Threshold, VFB rising) over VREF (VsoftOVP/VREF)
(guaranteed by design)
104
105
RsoftOVP(HYST)
RUVP
Ratio (Soft OVP Hysteresis) over VREF (guaranteed by design)
Ratio (UVP Threshold, VFB rising) over VREF (VUVP/VREF)
(guaranteed by design)
1.5
2.0
8
12
RUVP(HYST) Ratio (UVP Hysteresis) over VREF (guaranteed by design)
−
−
(IB)FB
FB Pin Bias Current @ VFB = VsoftOVP and VFB = VUVP
50
200
FAST OVER VOLTAGE PROTECTION AND BULK UNDER-VOLTAGE PROTECTION (FAST OVP AND BUV)
VfastOVP
RfastOVP1
RfastOVP2
Fast OVP Threshold, VFOVP rising
Ratio (Fast OVP Threshold, VFOVP rising) over (soft OVP Threshold,
VFB rising) (VfastOVP/VsoftOVP) (guaranteed by design)
Ratio (Fast OVP Threshold, VFOVP rising) over VREF (VfastOVP/VREF)
(guaranteed by design)
2.560
101.5
2.675
102.0
106
107
VBUV
RBUV
(IB)FOVP/BUV
VUVP2
BUV Threshold:
NCP1612A, NCP1612B, VFOVP falling
NCP1612A1, NCP1612A3, VFOVP falling
NCP1612A2 and NCP1612B2, VFB falling
Ratio (BUV Threshold) over VREF (VBUV/VREF)
NCP1612A, NCP1612B, VFOVP falling
NCP1612A1, NCP1612A3, VFOVP falling
NCP1612A2 and NCP1612B2, VFB falling
Pin1 Bias Current
@ Vpin1 = VfastOVP (all versions)
@ Vpin1 = VBUV (NCP1612A, NCP1612A1, NCP1612B, NCP1612A3 only)
UVP2 Threshold for Floating Pin Detection
(NCP1612A, NCP1612A1, NCP1612A3 and NCP1612B only)
1.80 1.90
0.90 1.00
1.80 1.90
74
76
37
40
74
76
50
200
50
200
0.2
0.3
BROWN-OUT PROTECTION AND FEED-FORWARD
VBOH
VBOL
VBO(HYST)
TBO(blank)
ICONTROL(BO)
VHL
VLL
VHL(hyst)
THL(blank)
IBO(bias)
pfcOK SIGNAL
Brown-out Threshold, Vsense rising
Brown-out Threshold, Vsense falling
Brown-out Comparator Hysteresis
Brown-out Blanking Time
VCONTROL Pin Sink Current, Vsense < VBOL
High-line Detection Comparator Threshold, Vsense rising
High-line Detection Comparator Threshold, Vsense falling
High-line Detection Comparator Hysteresis
Blanking Time for Line Range Detection
Brown-out Pin Bias Current, Vsense = VBO
0.96 1.00
0.86 0.90
60
100
35
50
40
50
2.1
2.2
1.6
1.7
400
500
15
25
−250
−
(VpfcOK)L
VSTDWN
pfcOK low state voltage @ IpfcOK = 5 mA
Shutdown Threshold Voltage (NCP1612A, NCP1612A1, NCP1612A3 and
NCP1612B only)
−
−
7.0
7.5
RpfcOK
Impedance of the pfcOK pin in high state (all versions)
150
300
Max
106
2.5
16
1
450
2.750
102.5
108
2.00
1.10
2.00
78
43
78
450
450
0.4
1.04
0.94
−
65
60
2.3
1.8
600
35
250
250
8.0
−
Unit
%
%
%
%
nA
V
%
%
V
%
nA
V
V
V
mV
ms
mA
V
V
mV
ms
nA
mV
V
kW
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