Description:

The NTE1851 is a monolithic integrated class–B amplifier in a 13–Lead Staggered SIP type package primarily developed for car radio applications, and also to drive low–impedance loads (down to 1.6Ω). At a supply voltage VCC = 14.4V, an output power of 21W can be delivered into a 4Ω BTL (Bridge–Tied Load), or, when used as a stereo amplifier, it delivers 2 x 11W into 2Ω or 2 x 6.5W into 4Ω.

Features:

• Flexibility In Use – Mono BTL as well as Stereo

• High Output Power

• Low Offset Voltage at the Output (Important for BTL)

• Large Usable Gain Variation

• Very Good Ripple Rejection

• Internal Limited Bandwidth for High Frequencies

• Low Standby Current Possiblity (1µA Typ), to Simplify Required Switches: TTL Drive Possible

• Low Number of Small–Sized External Components

• High Reliability

• Load Dump Protection

• AC and DC Short–Circuit Safe to Ground up to VCC = 18V

• Thermal Protection

• Speaker Protection in Bridge Configuration

• SOAR Protection

• Outputs Short–Circuit Safe to Ground in BTL

• Reverse–Polarity Safe

Applications:

• Car Radio Applications

• Drive Low Impedance Loads

• Stereo Amplifier