NTE1672 データシートの表示（PDF） - NTE Electronics
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NTE1672 Datasheet PDF : 4 Pages
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DC Electrical Characteristics (Cont’d): (TA = +25°C, VCC = 12V unless otherwise specified)
Parameter
Test Conditions
Min Typ Max
Unit
Oscillator Section
Frequency Range
Initial Accuracy Oscillator
TA = 0° to +70°C
R = 5kΩ
50 – 100k
Hz
–
5
–
%
Duty Cycle Range
Modulator
Modulation Input Current
Housekeeping Function
Pin6, Input Current
fo = 20kHz
0
– 98
%
Voltage at Pin5 = 2V TA = 0° to +70°C – 0.2 20
µA
at 2V, TA = 0° to +70°C
– 0.2 20
µA
Pin6, Duty Cycle Limit Control
For 50% Maximum Duty Cycle,
15kHz to 50kHz/41% of VZ
Pin1, Low Supply Voltage Protection
Thresholds
40 50 60 % of Duty
Cycle
8.0 9.0 10.5
V
Pin3, Feedback Loop Protection Trip
Threshold
400 600 720
mV
Pin3, Pull–Up Current
at 2V
Pin13, Demagnetization/Over Voltage TA = 0° to +70°C
Protection Trip on Threshold
–7 –15 –35
µA
470 600 720
mV
Pin13, Input Current
Pin16, Feed Forward Duty Cycle
Control
at 250mV, TA = +25°C
at 250mV, TA = 0° to +70°C
Voltage at Pin16 = 2VZ
– –0.6 –10
µA
–
– –20
µA
30 40 50 % Original
Duty Cycle
Pin16, Feed Forward Input Current at 16V, VCC = 18V, TA = +25°C
– 0.2 5.0
µA
(Note 1)
at 16V, VCC = 18V, TA = 0° to +70°C
–
– 10
µA
External Synchronization
Pin9 OFF
0
– 0.8
V
Pin9 ON
Pin9 Sink Current
Remote
Pin10 OFF
2
–
VZ
V
Voltage at Pin9 = 0V, TA = +25°C
– –65 –125
µA
Voltage at Pin9 = 0V, TA = 0° to +70°C –
– –125
µA
0
– 0.8
V
Pin10 ON
2
–
VZ
V
Pin10 Sink Current
at = 0V, TA = +25°C
– –85 –125
µA
at = 0V, TA = 0° to +70°C
–
– –125
µA
Current Limiting
Pin11, IIN
at = 250mV, TA = +25°C
– –2 –20
µA
at = 250mV, TA = 0° to +70°C
–
– –40
µA
Single Pulse Inhibit Delay
Inhibit Delay Time for 20% Overdrive – 0.7 0.8
µs
at 40mA IOUT
Trip Level: Shut Down, Slow Start,
Low Level
0.56 0.60 0.70
V
Current Limit, High Level
0.40 0.48 0.50
V
Low Level in terms of High
Level
0.75 0.80 0.85
V
Note 1. Does not include current for timing resistors or capacitors.
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