TPA005D14

Supply voltage, V_DD (PV_DD, LPV_DD, RPV_DD, V_DD) . . . . . . . . . . . . . . . . . . . . . 5.5 V
Input voltage, V_I (SHUTDOWN, MUTE, MODE) . . . . . . . . . . . . . . 0.3 V to 5.8 V
Output current, I_O (FAULT0, FAULT1), open drain terminated . . . . . . . . . . 1 mA
Charge pump voltage, V_CP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PVDD + 15 V
Continuous H-bridge output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A
Pulsed H-Bridge output current, each output, I_max (see Note 1) . . . . . . . 5 A
Continuous total power dissipation . . . . . . . . . . . See Dissipation Ratings Table
Operating virtual junction temperature range, T_J . . . . . . . . . . 40°C to 150°C
Operating case temperature range, T_C . . . . . . . . . . . . . . . .. .40°C to 125°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . 40°C to 150° C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . 260°C

The TPA005D14 is a monolithic power IC stereo audio amplifier that operates in extremely efficient Class-D operation, using the high switching speed of power DMOS transistors to replicate the analog input signal through high-frequency switching of the output stage. This allows the TPA005D14 to be configured as a bridge-tied load (BTL)  amplifier capable of delivering up to 2 W of continuous average power into a 4-· load at 0.4% THD+N from a 5-V power supply in the high-fidelity audio frequency range (20 Hz to 20 kHz). A BTL configuration eliminates the need for external coupling capacitors on the output. Included is a Class-AB headphone amplifier with interface logic to select between the two modes of operation. Only one amplifier is active at any given time, and the other is in power-saving sleep mode. Also, a chip-level shutdown control is provided to limit total quiescent current to 0.2 ·A, making the device ideal for battery-powered applications.

A full range of protection circuitry is included to increase device reliability: thermal, over-current, and under-voltage shutdown, with two status feedback terminals for use when any error condition is encountered. The high switching frequency of the TPA005D14 allows the output filter to consist of three small capacitors and two small inductors per channel. The high switching frequency also allows for good THD+N performance. The TPA005D14 is offered in the thermally enhanced 48-pin PowerPAD TSSOP surface-mount package (designator DCA).