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参数资料
| 型号： | NTE1672 |
| 厂商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit Power Supply Control Circuit |
| 中文描述： | 集成电路电源控制电路 |
| 文件页数： | 2/4页 |
| 文件大小： | 29K |
| 代理商： | NTE1672 |
DC Electrical Characteristics (Cont’d):
(T
A
= +25
°
C, V
CC
= 12V unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Oscillator Section
Frequency Range
Initial Accuracy Oscillator
Duty Cycle Range
Modulator
Modulation Input Current
Housekeeping Function
Pin6, Input Current
Pin6, Duty Cycle Limit Control
T
A
= 0
°
to +70
°
C
R = 5k
f
o
= 20kHz
50
–
0
–
5
–
100k
–
98
Hz
%
%
Voltage at Pin5 = 2V T
A
= 0
°
to +70
°
C
at 2V, T
A
= 0
°
to +70
°
C
–
0.2
20
μ
A
–
40
0.2
50
20
60
μ
A
For 50% Maximum Duty Cycle,
15kHz to 50kHz/41% of V
Z
% of Duty
Cycle
V
Pin1, Low Supply Voltage Protection
Thresholds
Pin3, Feedback Loop Protection Trip
Threshold
Pin3, Pull
–
Up Current
Pin13, Demagnetization/Over Voltage
Protection Trip on Threshold
Pin13, Input Current
8.0
9.0
10.5
400
600
720
mV
at 2V
T
A
= 0
°
to +70
°
C
–
7
470
–
15
600
–
35
720
μ
A
mV
at 250mV, T
A
= +25
°
C
at 250mV, T
A
= 0
°
to +70
°
C
Voltage at Pin16 = 2V
Z
–
–
30
–
0.6
–
40
–
10
–
20
50
μ
A
μ
A
Pin16, Feed Forward Duty Cycle
Control
% Original
Duty Cycle
μ
A
μ
A
Pin16, Feed Forward Input Current
(Note 1)
at 16V, V
CC
= 18V, T
A
= +25
°
C
at 16V, V
CC
= 18V, T
A
= 0
°
to +70
°
C
–
–
0.2
–
5.0
10
External Synchronization
Pin9 OFF
Pin9 ON
Pin9 Sink Current
0
2
–
–
–
–
0.8
V
Z
–
125
–
125
V
V
μ
A
μ
A
Voltage at Pin9 = 0V, T
A
= +25
°
C
Voltage at Pin9 = 0V, T
A
= 0
°
to +70
°
C
–
65
–
Remote
Pin10 OFF
Pin10 ON
Pin10 Sink Current
0
2
–
–
–
–
0.8
V
Z
–
125
–
125
V
V
μ
A
μ
A
at = 0V, T
A
= +25
°
C
at = 0V, T
A
= 0
°
to +70
°
C
–
85
–
Current Limiting
Pin11, I
IN
at = 250mV, T
A
= +25
°
C
at = 250mV, T
A
= 0
°
to +70
°
C
Inhibit Delay Time for 20% Overdrive
at 40mA I
OUT
–
–
–
–
2
–
0.7
–
20
–
40
0.8
μ
A
μ
A
μ
s
Single Pulse Inhibit Delay
Trip Level: Shut Down, Slow Start,
Low Level
Current Limit, High Level
Low Level in terms of High
Level
0.56
0.60
0.70
V
0.40
0.75
0.48
0.80
0.50
0.85
V
V
Note 1. Does not include current for timing resistors or capacitors.
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