The TAS5431-Q1 is a mono class-D audio amplifier, ideal for use in automotive emergency call (eCall), telematics, instrument cluster, and infotainment applications. The device provides up to 8-W into 4 Ω at less than 10% THD+N from a 14.4-Vdc automotive battery. The wide operating voltage range and excellent efficiency make the device ideal for start-stop support or running from a backup battery when required. The integrated load-dump protection reduces external voltage clamp cost and size, and the onboard load diagnostics report the status of the speaker through I2C.
PART NUMBER | PACKAGE(1) | BODY SIZE (NOM) |
---|---|---|
TAS5431-Q1 | HTSSOP (16) | 5.00 mm × 4.40 mm |
Changes from Revision * (March 2019) to Revision A (July 2020)
PIN | TYPE(1) | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
BSTN | 10 | AI | Bootstrap for negative-output high-side FET |
BSTP | 13 | AI | Bootstrap for positive-output high-side FET |
BYP | 3 | PBY | Voltage-regulator bypass-capacitor pin |
FAULT | 14 | DO | Active-low open-drain output used to report faults |
GND | 1, 9, 16 | GND | Ground |
IN_N | 7 | AI | Inverting analog input |
IN_P | 6 | AI | Non-inverting analog input |
MUTE | 8 | DI | Mute input, active-high (no internal pullup or pulldown) |
OUTN | 11 | PO | Output (–) |
OUTP | 12 | PO | Output (+) |
PVDD | 15 | PWR | Power supply |
SCL | 5 | DI | I2C clock |
SDA | 4 | DI/DO | I2C data |
STANDBY | 2 | DI | Active-low STANDBY pin (no internal pullup or pulldown) |
Thermal pad | — | — | Must be soldered to ground |