NTE NTE1478 Datasheet

NTE1478

Integrated Circuit

Solenoid Driver & Signal Sensing Circuit

Description:

The NTE1478 is an integrated circuit in a 10–Lead SIP type package that detects the stopping of a
rotary signal and drives a plunger. It is designed for use in auto–reverse and auto–eject car stereo
applications and can be used as a solenoid driver in many other control circuits.

Features:

D Internal Output Power Transistor: 5A Load Current Capability
D Programmable Switch: Manual Operation Can be Obtained
D Pause Switch: Switching Pause (Switch ON), Plunger Does Not Operate Even if the Rotary

Detective Signal Stops.

D Internal Load Dump Protector (Excessive Supply Voltage)
D Response Time and Driving Time are Variable with External Capacitors
D Input Sensitivity Voltage: 2V
D Operating Supply Voltage Range: VCC = 9V to 18V

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V

Load Current, I

CC

OUT

Power Dissipation (TC = +25°C), P

Peak Supply Voltage (1200 ms), VCCsurge 40V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Temperature Range, T
Storage Temperature Range, T

stg

P–P

opr

Min

D

18V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12.5W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–30° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics: (VCC = 13.2V, RL = 3.3Ω, TA = +25°C, unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Plunger Response Time T
Plunger Driving Time T
Supply Current I

Pin2 Voltage V
Power Transistor Cutoff Current I

CC(OFF)

I

CC(ON)

CER

C1 = 47µF, C2 = 10µF – 1.3 – sec

rp

C1 = 47µF, C2 = 10µF – 100 – msec

dp

Current at Plunger OFF 3.0 5.6 9.0 mA
Current at Plunger ON – 3.96 – A
Pin8 = GND, Pin4 = 9V – 0.6 1.0 V

2

Pin2 = 40V, Pin10 = GND – – 100 µA

Pin Connection Diagram

(Front View)

8
7

6
5
4

3
2
1

GND10
C2 Term9
Program

C1 Term
Input
Pause

V

CC

N.C.
Output
N.C.

.276
(7.0)

.433

(11.0)

.079
(2.0)

.217 (5.5)

1.050 (26.67) Max
.867 (22.0)

.128 (3.2) Dia

110

.100 (2.54)

.900 (22.8)