STMicroelectronics TDA2006V

Overview

TDA2006V from STMicroelectronics is a monolithic Class AB audio power amplifier in Pentawatt package, delivering 12W into 4Ω and 8W into 8Ω at ±12V supply with 0.2% THD+N at 1kHz, integrated short-circuit protection, and thermal shutdown. It serves as a low-frequency output stage in consumer audio systems, active speakers, and intercom amplifiers.

For engineers reviewing the TDA2006V datasheet, TDA2006V pinout, TDA2006V application, or TDA2006V equivalent, key selection criteria include output power vs. load impedance, closed-loop gain stability (29.5–30.5 dB), input offset voltage (±8 mV), thermal resistance junction-to-case (3°C/W), and safe operating area protection behavior under short-circuit conditions.

Technical Context

The TDA2006V implements a patented peak power limiting circuit-not simple current limiting-that dynamically constrains output transistor dissipation based on V_CE(sat), ensuring operation within the safe operating area during AC output shorts. Its dual protection includes thermal shutdown at 145°C junction temperature and internal current limiting capped at 3A peak.

It operates in split-supply (±6V to ±15V) or single-supply configurations, supports closed-loop gains ≥24 dB via external resistors R1/R2, and achieves 20Hz–100kHz bandwidth (–3dB) with 4Ω load. Input bias current is ≤3 µA and input noise voltage is 3–10 µV (22Hz–22kHz).

Key Specifications

Pinout & Package

Pentawatt-5 (vertical mount, 5-pin through-hole package with integrated heatsink tab; pin 3 is case/thermal pad, electrically connected to pin 5).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TDA2030A and LM1875, the TDA2006V offers superior fault resilience via its patented peak power limiting-critical for unattended installations-while maintaining lower system BOM count and smaller footprint than the LM1875, though with less raw output headroom than either alternative.

Availability

TDA2006V is available at Aetrix Electronics and suitable for home audio amplifiers, public address systems, intercom stations, and active speaker subwoofers requiring stable component supply and long-term industrial availability.

Supply support for TDA2006V 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The TDA2006V belongs to ST's legacy audio power amplifier product line, engineered specifically for cost-sensitive, reliability-critical audio output stages in AC- and DC-powered equipment with minimal external components.

FAQ

What is the maximum safe supply voltage for continuous operation?

The absolute maximum supply voltage is ±15V per the datasheet. For reliable long-term operation, ST recommends limiting to ±12V with proper heatsinking. At ±15V, output power increases but thermal stress rises significantly-case temperature must remain below 90°C to sustain 20W total dissipation, requiring a heatsink with ≤3°C/W thermal resistance.

Can the TDA2006V be used in bridge-tied load (BTL) configuration?

Yes-Figure 17 shows a verified split-supply BTL configuration delivering 24W into 4Ω with ±12V rails. This requires two TDA2006V ICs, one inverted and one non-inverted, with matched external components. Output filtering and DC offset balancing are critical; the configuration doubles voltage swing but also doubles power dissipation per device.

Is electrical isolation required between the Pentawatt case and heatsink?

No isolation is required in single-supply configurations because pin 3 (case) and pin 5 (output) are internally connected and designed to be directly mounted to the heatsink. In split-supply use, the case remains at ground potential, so standard mounting without insulator or thermal pad is acceptable and recommended for optimal thermal transfer.

How does the short-circuit protection differ from conventional current limiting?

Unlike fixed-current limiters, the TDA2006V's protection modulates output current based on instantaneous V_CE(sat) of the output transistors-effectively limiting peak power rather than current alone. This preserves linearity during transient overloads and prevents secondary breakdown by keeping operation inside the SOA boundary, as shown in Figure 19 of the datasheet.