STMicroelectronics TS4990IDT Class AB audio amplifier, 1-Channel (Mono) output, 1.2W x 1 @ 8Ohm, 2.2V-5.5V supply, 8-SOIC package, Tape & Reel.
| Parameter | Value |
|---|---|
| Type | Class AB |
| Output type | 1-Channel (Mono) |
| Mounting | Surface Mount |
| Supply voltage | 2.2V ~ 5.5V |
| Max output power x channels @ load | 1.2W x 1 @ 8Ohm |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Features | Depop, Differential Inputs, Standby, Thermal Protection |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
The TS4990IDT: Integrated features include depop circuitry to suppress turn-on clicks, differential inputs for improved noise rejection, a standby mode for power savings, and thermal protection that shuts down the output stage if the die temperature exceeds the safe operating limit.
The TS4990IQT shares the same 1.2 W output, Class AB topology, and feature set (depop, differential inputs, standby, thermal protection), but uses a QFN package rather than the 8-SOIC of the TS4990IDT. The electrical performance is equivalent, but the land pattern is different — a board revision is required to swap between them.