NTE NTE1396

NTE1396
Integrated Circuit
20W Bridge Booster for Car Radio
Description:
The NTE1396 is a Class B dual audio power amplifier specifically designed for car radio applications.
Power booster amplifiers are easily designed using this device that provides a high current capability
(up to 3.5A) and that can drive very low impedance loads obtaining an output power of more than 20W.
The NTE1396 has high reliability and guarantees complete safety during operation due to protection
against:
D Output DC and AC Short Circuit to GND or Across the Head
D Overrating Chip Temperature (+150°C)
D Polarity Inversion
D Load Dump Voltage Surge
D Fortuitous Open GND
D Very Inductive Loads
Absolute Maximum Ratings:
Operating Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
DC Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
Peak Supply Voltage (for 50ms), VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Output Peak Current (Note 1), IO
Non–Repetitive (t = 0.1ms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5A
Repetitive (f > 10Hz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A
Power Dissipation (TC = +60°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30W
Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Maximum Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3°C/W
Note 1. Max output current is internally limited.
Electrical Characteristics: (TA = +25°C, Gv = 50dB, Rth(HS) = 4°C/W, unless otherwise specified)
Parameter
Supply Voltage
Output Offset Voltage
(Between Pin8 & Pin10)
Total Quiescent Drain Current
Output Power
Distortion
Input Sensitivity
Symbol
Test Conditions
Min
Typ
8
–
18
V
VS = 14.4V
–
–
150
mV
VS = 13.2V
–
–
150
mV
VS = 14.4V, RL = 4Ω
–
75
150
mA
VS = 13.2V, RL = 3.2Ω
–
70
160
mA
VS = 14.4V, RL = 4Ω
18
20
–
W
VS = 14.4V, RL = 3.2Ω
20
22
–
W
VS = 13.2V, RL = 3.2Ω
17
19
–
W
VS = 14.4V, RL = 4Ω,
PO = 50mW to 15W
–
–
1
%
VS = 13.2V, RL = 3.2Ω,
PO = 50mW to 13W
–
–
1
%
f = 1kHz, PO = 2W
–
9
–
mV
RL = 3.2Ω
–
8
–
mV
VS
VOS
Id
PO
d
Vi
d = 10%,
f = 1kHz
f = 1kHz
RL = 4Ω
Max Unit
Input Resistance
Ri
f = 1kHz
70
–
–
kΩ
Low Frequency Roll Off (–3.2Ω)
fL
RL = 3.2Ω
–
–
40
Hz
High Frequency
fH
RL = 3.2Ω
20
–
–
kHz
Closed Loop Voltage Gain
Gv
f = 1kHz
–
50
–
dB
Total Input Noise Voltage
eN
Rg = 10KΩ, Note 2
–
3
10
µV
Supply Voltage Rejection
SVR
Rg = 10KΩ , C4 = 10µF, fripple = 100Hz,
Vripple = 0.5V
45
55
–
dB
PO = 20W, RL = 4Ω
–
60
–
%
PO = 22W, RL = 3.2Ω
–
60
–
%
VS = 13.2V, f = 1kHz, PO = 19W, RL = 3.2Ω
–
58
–
%
VS = 14.4V, RL = 4Ω, f = 1kHz, Ptot = 13W
100
110
–
°C
VS = 14.4V, RL = 4Ω
–
–
2
V
VS = 13.2V, RL = 3.2V
–
–
2
V
Efficiency
Thermal Shut–Down Case
Temperature
Output Voltage with One Side of
the Speaker Shorted to GND
η
Tsd
VOSH
VS = 14.4V ,
f = 1kHz
Note 2. Bandwidth filter 22Hz to 22kHz
Pin Connection Diagram
(Front View)
11 Bootstrap 1
10 Output 1
9 (+) VS
8 Output 2
7 Bootstrap 2
6 GND
5 (+) Input 2
4 (–) Input 2
3 SVRR
2 (–) Input 1
1 (+) Input 1
.791 (20.1)
.196 (4.99)
.062 (1.52)
.110 (2.79)
Note
.150 (3.81) Dia Max
.689
(17.5)
.696
(17.68)
1
11
.067 (1.7)
.008 (.203)
.858
(21.79)
.200
(5.08)
.169 (4.29)
NOTE: Tab connected to Pin6