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TS421 - 360mW mono amplifier

Download the TS421 datasheet PDF. This datasheet also covers the TS419 variant, as both devices belong to the same 360mw mono amplifier family and are provided as variant models within a single manufacturer datasheet.

General Description

The TS419 / TS421, is a monaural audio power amplifier driving in BTL mode a 16 or 32 Ω earpiece or receiver speaker.

The main advantage of this configuration is to get rid of bulky output capacitors.

Key Features

  • Operating from VCC = 2 V to 5.5 V.
  • Standby mode active high (TS419) or low (TS421).
  • Output power into 16 Ω: 367 mW @ 5 V with 10% THD+N max or 295 mW @ 5 V and 110 mW @ 3.3 V with 1% THD+N max.
  • Low current consumption: 2.5 mA max.
  • High signal-to-noise ratio: 95 dB (A) at 5 V.
  • PSRR: 56 dB typ. at 1 kHz, 46 dB at 217 Hz.
  • Short-circuit limitation.
  • ON/OFF click reduction circuitry.
  • Available in MiniSO8 and.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TS419-STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by STMicroelectronics

Part Number Description
TS420 Sensitive gate 4A SCRs
TS420-600B Sensitive gate 4A SCRs
TS420-600H Sensitive gate 4A SCRs
TS420-600T Sensitive gate 4A SCRs
TS4040 2.5V micropower shunt voltage reference

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
TS419IST : MiniSO8 Standby 1 Bypass 2 VIN+ 3 VIN- 4 8 VOUT2 7 GND 6 VCC 5 VOUT1 TS421IQT : DFN8 GND 1 VOUT2 2 Standby 3 Bypass 4 8 VCC 7 VOUT1 6 VIN+ 5 VIN- Maturity status link TS419, TS421 TS419, TS421 Datasheet 360 mW mono amplifier with standby mode Features • Operating from VCC = 2 V to 5.5 V • Standby mode active high (TS419) or low (TS421) • Output power into 16 Ω: 367 mW @ 5 V with 10% THD+N max or 295 mW @ 5 V and 110 mW @ 3.3 V with 1% THD+N max. • Low current consumption: 2.5 mA max. • High signal-to-noise ratio: 95 dB (A) at 5 V • PSRR: 56 dB typ.