NTE1942 Ver la hoja de datos (PDF) - NTE Electronics
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NTE1942 Datasheet PDF : 3 Pages
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Electrical Characteristics: (TJ = –25° to +150°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
GENERAL
Quiescent Drain Current
(Pin3)
Id Vi = 20V, TJ = +25°C
– 4.2 9.2 mA
Output Noise Voltage
eN
VOLTAGE REGULATION LOOP
Vo = Vref, Io = 10mA, B = 1MHz
– 80 –
µV
Reference Voltage (Pin4)
Average Temperature
Coefficient of
Reference Voltage
Vref
∆Vref
∆T
Vi = 20V, Io = 10mA, TJ = +25°C
Vi = 20V, TJ = –25° to +125°C
Io = 10mA TJ = +125° to +150°C
2.65 2.77 2.85 V
– –0.25 – mV/°C
– –1.5 – mV/°C
Output Voltage Range
Vo Io = 10mA, TJ = +25°C
2.85 – 36
V
Voltage Load Regulation
∆Vo ∆Io =2.0A, Note 1
Vo
∆Io =1.5A, Note 1
– 0.15 1.0 %
– 1.0 0.5 %
Supply Voltage Rejection SVR Vo = 5V, Io = 500mA, ∆Vi = 100Vpp, 60 70 –
dB
Ratio
f = 100Hx, Note 2
Line Regulation
Output Impedance
∆Vi Vo = 5V, Io = 500mA, Vi = 8V to 18V, 54 70 –
dB
∆Vo TJ = +25°C
Zo Vi = 10V, Vo = Vref, Io = 0.5A,
f = 100Hz
1.5 x 10–3
Ω
Drop–out Voltage between
Pin1 and Pin5
Bias Current at Pin4
Average Temperature
Coefficient (Pin4)
I4
∆I4
∆TDI4
Io
=
1.5A,
∆Vo
Vo
≤ 2%
TJ = +25°C
– 2.0 2.5 V
–
3 10 µA
– –0.5 – %/°C
CURRENT REGULATION LOOP
Current Limit Sense
Voltage between
Pin5 and Pin2
VSC Vi = 10V, Vo = Vref, TJ = +25°C
– 0.45 –
V
Average Temperature
Coefficient of VSC
Current Load Regulation
Short Circuit Current
∆Io Vi = 10V, Io = 0.5A
Io
∆Vo = 3V Io = 1.0A
Io = 1.5A
Isc Vi – Vo = 14V,
Pin2 and Pin5 short circuited
– 0.03 – %/°C
– 1.4 –
%
– 1.0 –
%
– 0.9 –
%
2.0 2.5 3.6 A
Note 1. A load step of 2A can be applied provided that the input–output differential voltage is lower
than 20V.
Note 2. The same performance can be maintained at higher output levels if a bypassing capacitor
is provided between Pin2 and Pin4.
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