STMicroelectronics TS4962MEIKJT

Overview

TS4962MEIKJT from STMicroelectronics is a 3 W filter-free Class-D BTL audio power amplifier in a Flip Chip 9-bump package (300 µm bump diameter), operating from 2.4 V to 5.5 V supply, delivering 2.3 W into 4 Ω at 1% THD+N and 5 V, with 88% typical efficiency, 85 dB SNR, and active-low standby mode consuming 10 nA. It targets space-constrained portable audio systems requiring high efficiency and low pop/click noise.

For engineers reviewing the TS4962MEIKJT datasheet, TS4962MEIKJT pinout, TS4962MEIKJT application, or TS4962MEIKJT equivalent, key selection criteria include differential input architecture, adjustable gain via external resistors, 250 kHz PWM base frequency, 5 ms wake-up time, and thermal resistance of 90 °C/W with heatsink - all critical for battery-powered VR headsets and smart phones.

Technical Context

The TS4962M implements a differential-input, BTL-output Class-D topology with internal PWM oscillator at 250 kHz (typ.), enabling filter-free operation into 4–8 Ω loads. Its common-mode feedback loop stabilizes DC bias while supporting single-ended or differential input configurations.

Gain is set externally via two matched resistors (R_in), yielding programmable voltage gain per G = 300 kΩ / R_in (kΩ). Pop-and-click suppression circuitry ensures ≤5 ms startup and shutdown times, with output offset voltage held to 3–25 mV under no-signal conditions.

Key Specifications

Pinout & Package

TS4962MEIKJT uses a Pb-free Flip Chip package with 9 bumps (300 µm diameter) in a 3×3 array, optimized for ultra-compact PCB layouts and thermal performance (R_thJA = 90 °C/W with 125 mm² heatsink).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Class-D audio amplifier applications.

Compared with TAS5342AIDBTR and MAX9718EWC+T, TS4962MEIKJT uniquely balances filter-free operation, gain adjustability, and sub-1-mm² flip-chip footprint - making it optimal for next-gen VR headsets and compact gaming hardware where space, efficiency, and design simplicity are co-prioritized.

Availability

TS4962MEIKJT is available at Aetrix Electronics and suitable for portable gaming consoles, VR headsets, and smart phones requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for TS4962MEIKJT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The TS4962M belongs to ST's Class-D audio amplifier product line, engineered specifically for battery-powered portable devices demanding high efficiency, minimal external components, and ultra-low standby power.

FAQ

What is the minimum recommended bypass capacitance for TS4962MEIKJT?

A 1 µF ceramic capacitor (Cs1) placed adjacent to VCC and GND is mandatory, supplemented by a 100 nF ceramic (Cs2) for high-frequency decoupling. Layout requires both capacitors to be within 2 mm of the VCC/GND bumps to maintain stability and PSRR performance per Section 6.5 of the datasheet.

Can TS4962MEIKJT drive an 8 Ω speaker at full rated power?

Yes - it delivers 1.4 W into 8 Ω at 1% THD+N with 5 V supply, and 0.45 W at 3.0 V. Output power scales with supply voltage and load impedance; maximum continuous power into 8 Ω is limited by thermal dissipation, not electrical capability.

How is gain configured on TS4962MEIKJT?

Gain is set by two identical external resistors (R_in) connected between IN+ and IN− and GND. Gain = 300 kΩ / R_in (kΩ); for example, 100 kΩ yields 3× (9.5 dB), and 150 kΩ yields 2× (6 dB), as verified in Table 1 and Figure 3 of the datasheet.

Does TS4962MEIKJT require an output LC filter?

No - its 250 kHz PWM carrier frequency and integrated output stage enable direct connection to 4–8 Ω speakers without external LC filtering. This eliminates inductor cost, size, and EMI concerns, though optional LC filters may further reduce RF emissions in sensitive EMC environments.