NTE1721 NTE Electronics, Inc., NTE1721 Datasheet - Page 2

• Manufacturer Part Number: NTE1721
• Description: Regulator; Pulse Width Modulator; DIP; 50 mA; 5.1 V (Typ.); 35 V (Max.)
• Manufacturer: NTE Electronics, Inc.
• Type: Pulse Width Modulator Regulator, Voltage Referencer

Specifications of NTE1721

• Common Mode Rejection Ratio: 75
• Current, Input Bias: 1 μA
• Current, Output: 50 μA
• Current, Supply: 14 mA
• Frequency, Oscillator: 400 kHz
• Load Regulation: 20 mV (Typ.)
• Package Type: DIP-16
• Power Dissipation: 1000 mW
• Regulation, Line: 10 mV
• Regulation, Load: 20 mV
• Regulator Type: Switching
• Resistance, Thermal, Junction To Case: 60 °C/W
• Temperature, Operating: 0 to 70 °C
• Temperature, Operating, Range: 0 to +70 °C
• Time, Fall: 50 ns
• Time, Rise: 100 ns
• Type, Voltage Regulator: Pulse Width Modulator
• Voltage Noise, Output: 40 μV (RMS) (Typ.)
• Voltage, Noise: 40 μV
• Voltage, Offset: 2 mV
• Voltage, Output: 5.1 V
• Voltage, Output, High: 5.6 V
• Voltage, Output, Low: 0.2 V
• Voltage, Rating: 35 V (Max.)
• Voltage, Supply: 35 V
• Voltage, Supply, Rejection Ratio: 60 dB
• Lead Free Status / Rohs Status: RoHS Compliant part

Recommended Operating Conditions:
Electrical Characteristics: (V
Note 2. Since long term stability cannot be measured on each device before shipment, this specifica-
Supply Voltage
Collector Supply Voltage
Output Sink/Source Current
Reference Load Current
Oscillator Frequency Range
Oscillator Timing Resistor
Oscillator Timing Capacitor
Deadtime Resistor Range
Operating Ambient Temperature Range
Reference Section
Reference Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Total Output Variation (Includes Line
Short Circuit Current
Output Noise Voltage
Long Term Stability
Oscillator Section (Tested at f
Initial Accuracy
Frequency Stability with Voltage
Frequency Stability with Temperature
Minimum Frequency
Maximum Frequency
Current Mirror
Clock Amplitude
Clock Width
Sync Threshold
Sync Input Current
Error Amplifier Section (V
Input Offset Voltage
Input Bias Current
Peak
Steady State
and Load Regulation over
Temperature
tion is an engineering estimate of average stability from lot to lot.
Parameter
CM
osc
= +5.1V)
Parameter
= 40kHz, R
CC
= +20V, T
Symbol
f
Reg
Reg
osc
V
f
osc
f
V
f
V
I
max
ref
V
min
V
I
SC
S
/V
IB
ref
IO
n
load
ref
line
/ T
/T
T
CC
= 3.6k , C
T
+8V
0mA
V
10Hz
T
T
+8V
R
R
I
T
Sync Voltage = +3.5V
RT
A
J
ref
J
J
J
T
T
= +25 C
= +25 C, Note 2
= +25 C
= +25 C
= 0 to +70 C unless otherwise specified)
= 150k , C
= 2k , C
= 2mA
= 0V, T
V
V
T
I
L
f
CC
CC
Test Conditions
= 0.001 F, R
10kHz, T
20mA
J
T
= +25 C
+35V
+35V
= 1.0nF
T
= 0.2 F
J
= +25 C
D
= 0 unless otherwise specified)
Symbol
V
f
R
V
I
R
C
T
osc
I
ref
CC
O
C
A
D
T
T
4.95
Min
400
5.0
1.7
3.0
0.3
1.2
0.001
–
–
–
–
–
–
–
–
–
–
–
–
–
Min
8.0
4.5
0.1
2.0
0.5
0
0
0
0
Typ
5.1
2.0
3.5
0.5
2.0
1.0
2.0
1.0
10
20
20
80
40
20
50
–
–
Typ
2
1
3
–
–
–
–
–
–
–
–
–
–
Max
5.25
10.0
10.0
100
200
5.2
2.2
1.0
2.8
2.5
20
50
50
–
–
–
–
–
Max
35.0
35.0
400
150
6
2
0.2
100
400
20
70
–
mV/kHr
Unit
kHz
mV
mV
mV
mA
mA
mA
mV
V
Unit
Hz
%
%
%
kHz
mA
mA
mA
V
V
V
V
k
rms
A
s
V
V
C
F