Texas Instruments TPS2812P

Overview

TPS2812P from Texas Instruments is a dual-channel noninverting high-speed MOSFET driver IC designed for gate driving in switching power supplies and motor control circuits. It delivers 2-A peak output current per channel, achieves ≤25-ns rise/fall times (V_CC = 14 V, C_L = 1 nF), operates across 4–14-V supply range, and includes an integrated regulator enabling 14–40-V input operation. It is used in synchronous buck regulators to drive high-side and low-side N-channel MOSFETs with precise timing alignment.

For engineers reviewing the TPS2812P datasheet, TPS2812P pinout, TPS2812P application, or TPS2812P equivalent, key selection considerations include its dual noninverting logic configuration, regulator-enabled wide-input-voltage capability, 2-A drive strength, <40-ns propagation delay, and −40°C to 125°C operating range - all critical for high-frequency, high-reliability power stage design.

Technical Context

The TPS2812P implements two independent CMOS-input, buffered-output drivers with noninverting logic polarity. Each channel features a bipolar-MOSFET hybrid output stage enabling rail-to-rail swing (0 V to V_CC) while sustaining ±2-A instantaneous current, ensuring robust turn-on/turn-off of low-threshold MOSFETs.

It integrates an internal linear regulator (REG_IN → REG_OUT) that accepts 14–40-V input and delivers 10–13-V regulated output at up to 20-mA load, allowing direct use in high-input-voltage systems without external regulation. The regulator is optional: REG_IN and REG_OUT may be left unconnected or tied to V_CC/GND when unused.

Key Specifications

Pinout & Package

TPS2812P is supplied in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin spacing is 0.1 inch; lead finish is matte tin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual noninverting MOSFET driver applications.

Compared with TPS2812D, the TPS2812P offers identical functionality in through-hole form for manual assembly and thermal testing; compared with UCC27524ADRV, it trades peak current and speed for integrated voltage regulation and broader input flexibility - making it optimal for cost-sensitive, medium-frequency industrial power supplies.

Availability

TPS2812P is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, long-lifecycle support, and through-hole manufacturability.

Supply support for TPS2812P 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 interface ICs.

The TPS28xx series was engineered specifically for high-efficiency, high-frequency switching power stages - delivering robust gate drive, integrated regulation, and thermal resilience for industrial and automotive power conversion.

FAQ

What is the function of the REG_IN and REG_OUT pins on the TPS2812P?

The REG_IN pin accepts 14–40-V input to power an internal linear regulator, which delivers a regulated 10–13-V output at REG_OUT (up to 20 mA). This allows the TPS2812P to operate directly from high-voltage rails without external regulation. When unused, both REG_IN and REG_OUT may be left floating or tied to V_CC/GND - the TPS2812P functions normally using only V_CC (4–14 V).

Can the TPS2812P drive both high-side and low-side N-channel MOSFETs in a synchronous buck converter?

Yes. The TPS2812P's dual noninverting outputs (1OUT and 2OUT) are electrically independent and rail-to-rail, enabling direct drive of both high-side and low-side N-MOSFETs. Its matched propagation delays (<40 ns) and low shoot-through current (<6 mA) preserve dead-time integrity and prevent cross-conduction - critical for stable synchronous buck operation.

What is the maximum capacitive load the TPS2812P can drive while maintaining specified rise/fall times?

The TPS2812P is characterized for ≤25-ns rise/fall times with a 1-nF load at V_CC = 14 V. While it can drive larger loads (e.g., 10-nF), measured rise/fall times increase significantly (to ~60 ns). For designs requiring <30-ns transitions, keep total gate + layout capacitance ≤1.5 nF and use short, low-inductance gate traces - the TPS2812P remains effective for Hex-3 and smaller MOSFETs.

Does the TPS2812P require external decoupling capacitors, and if so, what values are recommended?

Yes. A 0.1-µF ceramic capacitor is mandatory between V_CC and GND to supply instantaneous current during fast switching. For regulator stability, a 0.1-µF ceramic capacitor is required between REG_OUT and GND; adding a 4.7-µF electrolytic capacitor further improves transient response. All capacitors must be placed adjacent to their respective pins with minimal trace length.

How does the TPS2812P differ from the TPS2811P and TPS2813P in terms of logic configuration?

The TPS2812P features dual noninverting drivers (1IN→1OUT, 2IN→2OUT), whereas TPS2811P uses dual inverting logic and TPS2813P combines one inverting and one noninverting channel. All three share identical regulator, timing, drive strength, and package specifications - only input/output polarity differs. Selection depends strictly on system-level logic requirements, not performance.