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The TDA8946J is a dual-channel audio power amplifier delivering 2 × 15 W into an 8 Ω load at 18 V supply. It features a Bridge Tied Load (BTL) architecture with an all-NPN output stage capable of 2 A peak current. The device operates within a 6 V to 18 V range, offering fixed voltage gain and three-level mode selection for standby, mute, and operating states. Integrated protections include short-circuit and thermal shutdown. It utilizes a 17-pin DBS17P plastic DIL-bent-SIL package.
Verify the specific ordering suffix N1,112 against the manufacturer's latest documentation to confirm packaging and environmental compliance details. Ensure design compatibility with the DBS17P through-hole mounting requirements and thermal dissipation needs.
Select this component for designs requiring high efficiency without DC-blocking capacitors. Consider the fixed 32 dB gain and BTL topology for direct speaker driving. Evaluate thermal management strategies based on the specified junction-to-mounting base resistance for the intended power output levels.
This part belongs to the TDA894x family of audio amplifiers. It shares PCB footprint compatibility with other variants in the series, allowing mono and stereo products to utilize the same board layout. The device represents a solution for robust audio amplification in consumer electronics.
Consult official manufacturer documentation for confirmed substitute part numbers. Verify pinout and electrical specifications match before implementation.
Standby mode is activated when the MODE pin voltage is between (VCC - 0.5 V) and VCC, or if the pin is left floating.
The device includes short-circuit protection to ground, supply, and across the load, which switches the power stage to standby mode upon detection.