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STMicroelectronics TS4962MEIJT — Logic ICs
STMicroelectronics

ST TS4962MEIJT Class D Audio Amp, 2.8W Mono, 9-FlipChip

MPNTS4962MEIJT
End of Life

STMicroelectronics TS4962MEIJT Class D audio amplifier, mono 1-channel, 2.8W output into 4Ω, 2.4V to 5.5V supply, -40°C to 85°C, 9-UFBGA/FCBGA package, surface mount.

$1.45Ref. price · indicative, final on quote
TS4962MEIJT datasheet
Packaging9-UFBGA, FCBGA
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

TS4962MEIJT Technical Specifications
ParameterValue
TypeClass D
Output type1-Channel (Mono)
Mounting typeSurface Mount
Voltage2.4V ~ 5.5V
Max output power x channels @ load2.8W x 1 @ 4Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesDepop, Differential Inputs, Standby, Thermal Protection
Case9-UFBGA, FCBGA

Product details

2.8W mono Class D in a 9-bump FlipChip

The STMicroelectronics TS4962MEIJT is a mono Class D audio power amplifier delivering 2.8W into a 4Ω load from a 5V supply, all in a 9-bump FlipChip package that sits about the size of a grain of rice. It runs on a 2.4V to 5.5V supply rail, so a single Li-ion cell or a 3.3V/5V regulated rail both work. The differential inputs reject common-mode noise picked up on long input traces — useful when the amp sits on a separate board from the codec. Built-in depop circuitry suppresses the turn-on thump that otherwise annoys the end user, and the standby pin lets the system MCU cut quiescent draw to near-zero when audio is idle.

This part lives in the gap between a headphone driver and a multi-watt speaker amp. 2.8W into 4Ω is enough for a portable Bluetooth speaker, a battery-powered soundbar, a smart-home voice assistant, or an industrial panel with audio feedback. The 9-FlipChip package means the PCB must handle a 0.5mm-pitch BGA-like footprint with microvias or very fine traces; this is not a hand-solderable part for prototyping. For 8Ω speakers, the output power drops to roughly half (about 1.4W at the same supply voltage), which may still be adequate for a notification chime or voice prompt.

Package reality for the layout and rework desk

The 9-UFBGA / 9-FlipChip is a tiny array — nine solder bumps on the bottom, no leads. For the PCB layout engineer: expect a 0.5mm ball pitch, requiring at least a four-layer board if signals must escape the inner balls. For the rework tech: this is a hot-air or reflow-only package. No hand-soldering. MSL is not stated in this listing, but FlipChip packages typically run MSL 3 — bake before reflow if the moisture-barrier bag has been open past the floor-life window. The thermal protection feature means the die shuts down before the junction exceeds the safe limit, but the tiny package has limited thermal mass; continuous full-power output into 4Ω at 85°C ambient needs a thermal analysis, not just a spec check.

Lifecycle and sourcing posture

ROHS3 compliant.

Frequently asked questions

What is the output power of TS4962MEIJT into 4Ω at 3.7V?

The datasheet specifies 2.8W into 4Ω at the maximum supply voltage of 5V. At 3.7V (nominal Li-ion), output power will be lower — expect roughly 1.5W to 1.8W into 4Ω, depending on the battery voltage under load. The exact figure requires the THD+N vs output power curves from the full datasheet.

Can TS4962MEIJT be used with an 8Ω speaker?

Yes, but at reduced power. The 2.8W rating is into 4Ω. Into an 8Ω load at the same 5V supply, output power drops to approximately 1.4W (half, since power is inversely proportional to load resistance for a given voltage swing). This is still adequate for voice prompts, notification tones, or low-volume audio in a portable device.