NTE NTE7028 Datasheet

Features:

D 3 Outputs
D Cutoff Function

NTE7028

Integrated Circuit

Module, 3 Output Positive Voltage

Regulator for VCR

Absolute Maximum Ratings:

Maximum DC Input Voltage, V

(TA = +25°C unless otherwise specified)

(DC) Max 30V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IN

Maximum Average Output Current, IO Max

VO1 1.0A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V

2 1.0A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

VO3 1.0A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum Peak Output Current (Note 1), I

V

1 2.0A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

V

2 2.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

Max

O

VO3 2.0A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Case Temperature, TC Max +105°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Junction Temperature, T
Storage Temperature Range, T
Thermal Resistance, Junction–to–Case, R

Max +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

J

stg

thJC

–30° to +105°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Note 1. Peak Current: For 0.2sec Max.

Electrical Characteristics:

Parameter Test Conditions VO1 VO2 VO3 Unit

Output Voltage Setting Condition 1, Note 2 12.8 ±0.3 12.1 ±0.1 5.2 ±0.1 V
Ripple Voltage Condition 1 60 3 3 mV
Output Cutoff Condition 1, Note 3 0.1 0.1 0.1 V Max
Temperature Coefficient Condition 1 0.03 0.02 0.02 %/°C Max
Line Regulation Condition 2 15 – – mV/V Max

Load Regulation Condition 4 200 45 10 mV/A Max
Minimum Input–Output Voltage

Difference

(TA = +25°C unless otherwise specified)

Condition 3 20 2 2

Condition 5 1.2 1.2 1.2 v Max

p–p

Max

Note 2. Measurement must be made within 1 to 2 seconds after input switch is turned ON.
Note 3. When Pin11 is at High level (3V to 15V), VO1, VO2, and VO3 are turned ON.

When Pin11 is at Low level (0.6V or less), VO1, VO2, and VO3 are turned OFF.

Test Conditions:

Condition 1: VB 1 = 50V, VIN (DC) 1 = 17V, VIN (DC) 2 = 9V, Input Ripple Voltage = 1.5V

VB 2 = 33V, Input Ripple Voltage = 10mV

p–p

IO1 = 0.5A. IO2 = 0.5A, IO3 = 0.5A

Condition 2: V

1 = 50V ±5V, VB 2 = 33V, VIN (DC) 1 = 17V, VIN (DC) 2 = 9V

B

IO1 = 0.5A. IO2 = 0.5A, IO3 = 0.5A

Condition 3: V

Condition 4: V

Condition 5: V

1 = 50V, VB 2 = 33V, VIN (DC) 1 = 14.3V to 21V, VIN (DC) 2 = 6.5V to 11.5V

B

I

1 = 0.5A. IO2 = 0.5A, IO3 = 0.5A

O

1 = 50V, VB 2 = 33V, VIN (DC) 1 = 17V, VIN (DC) 2 = 9V

B

I

1 = 0.3A to 1A, IO2 = 0.1A to 1A, IO3 = 0.1A to 1A

O

1 = 50V, VB 2 = 33V, IO1 = 0.5A. IO2 = 0.5A, IO3 = 0.5A

B

p–p

Pin Connection Diagram

2.330 (59.2)

2.050 (52.0)

(Front View)

12
11

10

9
8

7
6

5
4

3
2

1

GND
ON/OFF

V

(DC) 1

IN

1

V

B

V

1 (12.8V @ 1A)

O

(DC) 1

V

IN

2

V

B

V

2 (12.1V @ 1A)

O

(DC) 2

V

IN

Filter

3 (5.2V @ 1A)

V

O

V

3 (5.2V @ 1A)

O

.335 (8.5)

1.003
(25.5)

.628

(16.0)

112

.100 (2.54)

1.110 (27.94)

.925

(23.5)

.158 (4.0)