NTE7145
Intergrated Circuit
18W BTL x 2 Ch Audio Power Amplifier
Description:
The NTE7145 is a stereo audio power IC in a 17鈥揕ead Staggered SIP type package designed for car
audio use. This device has 2 built鈥搃n channels to reduce the characteristics difference between L and
R channels. In addition, the functions of stand鈥揵y, muting, and a variety of protections circuits are
involved.
Features:
D
High Power:
P
OUT
(1) = 18W (Typ)/Channel (V
CC
= 14.4V, f = 1kHz, THD = 10%, R
L
= 4鈩?
P
OUT
(2) = 15W (Typ)/Channel (V
CC
= 13.2V, f = 1kHz, THD = 10%, R
L
= 4鈩?
D
Low Distortion Ratio:
THD = 0.04% (Typ) (V
CC
= 13.2V, f = 1kHz, P
OUT
= 1W, R
L
= 4鈩? G
V
= 50dB)
D
Low Noise:
V
NO
= 0.30mV
rms
(Typ) (V
CC
= 13.2V, R
L
= 4鈩? G
V
= 50dB, R
g
= 0鈩? BW = 20Hz to 20kHz)
D
Built鈥揑n Stand鈥揃y Function (With Pin4 set at Low, Power is Turned OFF):
I
SB
= 1碌A(chǔ) (Typ)
D
Built鈥揑n Muting Function (With Pin1 set at Low, Power is Turned OFF):
V (Mute) = 1V (Typ)
D
Built鈥揑n Various Protection Circuits:
Thermal Shut Down
Overvoltage
OUT鈫扸
CC
Short
OUT鈫扜ND Short
OUT鈥揙UT Short
D
Operating Supply Voltage: V
CC
= 9V to 18V
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Peak Supply Voltage (0.2s), V
CC
surge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V
DC Supply Voltage, V
CC
DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
OPerating Supply Voltage, V
CC
opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Output Current (Peak), I
O(peak)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9A
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50W
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +85擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
1
2
