NTE1851
Integrated Circuit
Audio Amplifier, 24W BTL
Description:
The NTE1851 is a monolithic integrated class鈥揃 amplifier in a 13鈥揕ead Staggered SIP type package
primarily developed for car radio applications, and also to drive low鈥搃mpedance loads (down to 1.6鈩?.
At a supply voltage V
CC
= 14.4V, an output power of 21W can be delivered into a 4鈩?BTL (Bridge鈥揟ied
Load), or, when used as a stereo amplifier, it delivers 2 x 11W into 2鈩?or 2 x 6.5W into 4鈩?
Features:
D
Flexibility In Use 鈥?Mono BTL as well as Stereo
D
D
High Output Power
D
D
Low Offset Voltage at the Output
D
(Important for BTL)
D
Large Usable Gain Variation
D
D
Very Good Ripple Rejection
D
D
Internal Limited Bandwidth for High Frequencies
D
D
Low Standby Current Possiblity (1碌A(chǔ) Typ), to
Simplify Required Switches: TTL Drive Possible
D
D
Low Number of Small鈥揝ized External Compo-
D
nents
Applications:
D
Car Radio Applications
D
Drive Low Impedance Loads
D
Stereo Amplifier
Absolute Maximum Ratings:
Supply Voltage (Pin10), V
CC
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Non鈥揙perating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
Supply Voltage (During 50ms Load Dump Protection), V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45V
Peak Output Current, I
OM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8A
Crystal Temperature, T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
AC and DC Short鈥揅ircuit Safe Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Reverse Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V
High Reliability
Load Dump Protection
AC and DC Short鈥揅ircuit Safe to Ground up to
V
CC
= 18V
Thermal Protection
Speaker Protection in Bridge Configuration
SOAR Protection
Outputs Short鈥揅ircuit Safe to Ground in BTL
Reverse鈥揚olarity Safe
1
2
3
4
