Class G headphone driver in a 1.56 mm² footprint
The TPA6141A2YFFT: Class G architecture means the output stage switches between two supply rails — lower voltage for quiet passages, higher for transients — so battery-powered devices see less quiescent current draw than a conventional Class AB amp at the same output level.
Output power and supply headroom
Rated 32 mW x 2 at 32 Ω, the TPA6141A2YFFT drives typical consumer headphone impedances (16 Ω to 64 Ω) with enough swing for line-level output in portable audio, mobile handsets, and wearable sound applications.
Protection and signal integrity features
On-chip short-circuit and thermal protection prevent damage if the headphone jack is shorted or the amp is driven into a high-ambient environment — the part shuts down and auto-recovers when the fault clears. Differential inputs reject common-mode noise picked up on the audio traces from the codec to the amp, and the depop circuit suppresses the click and pop that otherwise occur at power-up and shutdown. A dedicated shutdown pin lets the system controller cut supply current to near zero when audio is idle — useful for extending battery standby time in always-listening devices.
Package and assembly considerations
Housed in a 16-bump DSBGA measuring 1.56 x 1.56 mm (supplier device package 16-DSBGA), the TPA6141A2YFFT saves board area but requires a controlled SMT process — the 0.4 mm pitch and wafer-level package mean the stencil aperture and reflow profile must match TI's DSBGA guidelines to avoid head-in-pillow defects.
Lifecycle and sourcing posture
ROHS3 compliant (no exemptions), which simplifies EU and UKCA market entry without needing a certificate of non-use for restricted substances.