NTE NTE1881 Datasheet
Module, 3 Output Positive Voltage
Features:
D 3 Outputs
D Output Voltage Select Function
NTE1881
Integrated Circuit
Regulator for VCR
Absolute Maximum Ratings:
Maximum DC Input Voltage, V
V
1, VO2 30V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
V
3 20V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
Maximum Average Output Current, I
V
1 1.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
V
2 1.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
V
3 1.0A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
Maximum Peak Output Current (Note 1), I
V
1 2.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
V
2 2.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
V
3 2A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
Operating Case Temperature, T
Junction Temperature, T
J
Storage Temperature Range, T
Thermal Resistance, Junction–to–Case, R
(TA = +25°C unless otherwise specified)
(DC) Max
IN
Max
O
Max
O
Max +105°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C
Max +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
thJC
–30° to +105°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. Peak Current: For 1.0sec Max.
Electrical Characteristics:
Parameter Test Conditions VO1 VO2 VO3 Unit
Output Voltage Setting Condition 1, Note 2 12.0 ±0.3 12.0±0.1 5.3±0.1 V
Output Cutoff Residual Voltage Condition 1, Note 3 12.0 ±0.3 12.0±0.1 0.1 V Max
Ripple Voltage Condition 2 20 5 5 mV
Temperature Coefficient Condition 1 0.02 0.02 0.02 %/°C Max
Input Regulation Condition 3 80 35 35 mV/V Max
Load Regulation Condition 4 150 40 40 mV/A Max
Minimum Input–Output Voltage
Difference
(TA = +25°C unless otherwise specified)
Condition 5 1.5 1.5 1.2 V Max
p–p
Max
Note 2. Measurement must be made within 1 to 2 sec. after input switch is ON.
Note 3. When Pin2 is at High level (3V to 15V), V
When Pin2 is at Low level (0.6V or less), V
3 is turned ON.
O
3 is turned OFF.
O
Test Conditions:
Condition 1: VIN (DC) 1 = 16V, VIN (DC) 2 = 9V, IO1 = IO2 = 1A, IO3 = 0.5A, (IB1 = IB2 = 2mA)
Condition 2: V
Condition 3: VIN (DC) 1 = 14.5V to 22V, VIN (DC) 2 = 6.6V to 11V, IO1 = IO2 = 1A, IO3 = 0.5A
Condition 4: V
Condition 5: I
(DC) 1 = 16V, VIN (DC) 2 = 9V, IO1 = IO2 = 1A, IO3 = 0.5A, Input Ripple Voltage = 1.5V
IN
(DC) 1 = 16V, VIN (DC) 2 = 9V, IO1 = 0.3A to 1A, IO2 = 0.3A to 1A, IO3 = 0.1A to 1A
IN
1 = IO2 = 1A, IO3 = 0.5A, IB1 = IB2 = 2mA
O
P–P
Pin Connection Diagram
(Front View)
12
N.C.
11
N.C.
10
GND
9
V
IN
1
I
8
B
7
1 (12V @ 1.5A)
V
O
6
V
IN
2
I
5
B
4
2 (12V @ 1.5A)
V
O
3
V
IN
2
Cutoff
V
3 (5.3V @ 1A)
1
O
(DC) 1
(DC) 1
(DC) 2
2.330 (59.2)
2.050 (52.0)
.335 (8.5)
1.003
(25.5)
.628
(16.0)
112
.100 (2.54) .158 (4.0)
1.110 (27.94)
.925
(23.5)
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