Texas Instruments TPS2811D

Overview

TPS2811D from Texas Instruments is a dual inverting high-speed MOSFET driver IC with integrated regulator, delivering 2-A peak output current per channel into 1-nF loads at V_CC = 14 V, 25-ns max rise/fall times, and 40-ns max propagation delay. It operates across −40°C to 125°C and supports 4-V to 14-V supply voltage (extended to 40 V via internal regulator), used in synchronous buck converters and half-bridge gate drive circuits.

For engineers reviewing the TPS2811D datasheet, TPS2811D pinout, TPS2811D application, or TPS2811D equivalent, this page delivers verified technical context, exact pin functions, confirmed switching performance under load, regulator interface behavior, and validated alternative options for dual inverting gate drive in high-frequency power stages.

Technical Context

The TPS2811D implements two independent inverting CMOS drivers with Schmidt-trigger inputs (V_TH+ ≈ 2/3 V_CC, V_TH− ≈ 1/3 V_CC) and bipolar-MOSFET hybrid output stages enabling rail-to-rail swing and guaranteed turn-off of low-threshold MOSFETs. Its internal regulator accepts 14–40 V on REG_IN and delivers 10–13 V at up to 20 mA on REG_OUT to stabilize V_CC.

Each driver provides <20 ns rise/fall times and <30 ns propagation delay with 1-nF load at V_CC = 14 V, while shoot-through current is inherently limited to <6 mA during input transitions. Input impedance exceeds 10⁹ Ω, and supply current remains ≤5 µA when inputs are static high or low.

Key Specifications

Pinout & Package

TPS2811D is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package, surface-mount, with standard D suffix per TI packaging nomenclature. Tape-and-reel delivery requires R suffix (TPS2811DR).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual inverting gate drive applications.

Compared with TPS2811PW, the TPS2811D offers lower thermal resistance (5.84 mW/°C) and proven manufacturability in SOIC assembly lines; versus UCC27324D, it trades higher peak current for built-in regulation and inverting logic-reducing BOM count in 24–48 V input systems.

Availability

TPS2811D is available at Aetrix Electronics and suitable for synchronous buck converters, half-bridge motor drives, and isolated flyback controller interfaces requiring stable component supply, long-term lifecycle support, and TI-authorized traceable sourcing.

Supply support for TPS2811D 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-reliability power conversion ICs.

The TPS28xx series was designed specifically for high-frequency, high-efficiency MOSFET gate driving in industrial power supplies, motor controllers, and telecom infrastructure-emphasizing speed, regulation integration, and ruggedness across extended temperature ranges.

FAQ

What is the function of the REG_IN and REG_OUT pins on the TPS2811D?

The REG_IN pin accepts 14–40 V input to power the internal regulator, which delivers a stable 10–13 V output on REG_OUT. This allows TPS2811D to operate safely from wide-input rails while supplying up to 20 mA for external circuitry or self-biasing. When unused, both REG_IN and REG_OUT may be left unconnected or tied together to V_CC or GND.

Can the TPS2811D drive both high-side and low-side N-channel MOSFETs in a half-bridge?

Yes - the TPS2811D's dual inverting outputs enable direct gate drive of high-side N-MOSFETs when paired with bootstrap or isolated gate-drive supplies. Its rail-to-rail output swing (0 V to V_CC) and 2-A peak current ensure reliable turn-on of low-threshold devices, while matched channel timing minimizes shoot-through risk in hard-switched topologies.

What decoupling capacitors are required for stable operation of the TPS2811D?

A 0.1-µF ceramic capacitor between V_CC and GND is mandatory to supply instantaneous current during fast switching. For regulator stability, a 0.1-µF ceramic capacitor must be placed between REG_OUT and GND, plus a 4.7-µF electrolytic capacitor on REG_OUT for optimal transient response - per TI SLVS132F design guidelines.

How does the TPS2811D achieve low shoot-through current compared to standard CMOS drivers?

The TPS2811D uses a proprietary input stage that inherently limits shoot-through current to <6 mA during input transitions - far below typical CMOS levels. This is achieved through controlled pre-drive logic and optimized transistor sizing, as verified in Figures 17–18 of the SLVS132F datasheet, improving reliability in high-dv/dt environments.

Is the TPS2811D pin-compatible with other members of the TPS28xx family?

Yes - all TPS28xx variants (TPS2811D, TPS2812D, TPS2813D, TPS2814D, TPS2815D) share identical 8-pin SOIC (D) pinouts and package dimensions. However, logic functions differ: TPS2811D is dual inverting, TPS2812D is dual noninverting, and TPS2813D is complementary - so PCB reuse requires firmware or external logic validation.