Texas Instruments TPS2812PWR

Overview

TPS2812PWR from Texas Instruments is a dual-channel noninverting high-speed MOSFET driver IC designed for gate-driving n-channel and p-channel power MOSFETs in switching power supplies and motor control circuits. It delivers 2-A peak source/sink current, achieves ≤25-ns rise/fall times (V_CC = 14 V, C_L = 1 nF), supports 4–14-V supply operation, and integrates an internal regulator enabling up to 40-V input operation. It operates across −40°C to 125°C ambient temperature.

For engineers reviewing the TPS2812PWR datasheet, TPS2812PWR pinout, TPS2812PWR application, or TPS2812PWR equivalent, key selection criteria include its dual noninverting logic configuration, regulator-enabled wide-input-voltage capability (14–40 V on REG_IN), fast propagation delay (<40 ns), low 5-µA quiescent supply current, and TSSOP-8 package suitability for high-density DC/DC converter layouts.

Technical Context

The TPS2812PWR implements two independent CMOS-input, buffered-output drivers with noninverting logic polarity - each input directly controls its corresponding output without inversion. Its internal linear regulator accepts 14–40 V on REG_IN and delivers a regulated 10–13 V at REG_OUT (up to 20 mA), allowing stable V_CC biasing under high-input-voltage conditions.

Output stage architecture combines bipolar transistors in parallel with MOSFETs to achieve rail-to-rail swing (V_CC to GND) and robust 2-A instantaneous drive, ensuring reliable turn-on/turn-off of low-threshold MOSFETs. Input thresholds follow Schmitt-trigger behavior (≈⅓V_CC low-to-high, ≈⅔V_CC high-to-low), providing noise immunity and shoot-through current limitation (<6 mA).

Key Specifications

Pinout & Package

TSSOP-8 (PW) package: 3.0 mm × 4.4 mm, 0.65-mm pitch, exposed thermal pad (not electrically connected), RoHS-compliant, tape-and-reel (R-suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2812PWR, TPS2812DR offers identical functionality in a through-hole package with higher thermal mass but lower density, while LM5112MMX/NOPB trades regulator integration for higher peak current and faster edges - making TPS2812PWR optimal for space-constrained, wide-input-voltage industrial DC/DC designs.

Availability

TPS2812PWR is available at Aetrix Electronics and suitable for synchronous buck regulators, half-bridge motor drives, and isolated flyback controllers requiring stable component supply, extended temperature operation, and high gate-drive current density.

Supply support for TPS2812PWR 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 IC design.

The TPS28xx series was developed specifically for high-efficiency, high-frequency power conversion systems - delivering fast, robust, and regulator-integrated gate drive for industrial, automotive, and telecom power stages.

FAQ

What logic configuration does the TPS2812PWR implement?

The TPS2812PWR implements dual noninverting drivers: 1IN directly controls 1OUT, and 2IN directly controls 2OUT, with no internal inversion. This matches the TPS2812 variant designation in TI's family documentation and distinguishes it from the inverting TPS2811 and complementary TPS2813. The TPS2812PWR maintains this behavior across its full operating temperature and voltage range.

Can the TPS2812PWR operate without using the internal regulator?

Yes - the TPS2812PWR can operate with REG_IN and REG_OUT left unconnected when V_CC is supplied externally within 4–14 V. The regulator is optional; its use is only required when input voltage exceeds 14 V. When unused, no external connections to pins 1 (REG_IN) or 5 (REG_OUT) are needed, simplifying layout for 5–12-V systems.

What is the maximum capacitive load the TPS2812PWR can drive while maintaining specified timing?

The TPS2812PWR's 25-ns max rise/fall time and 40-ns max propagation delay are specified with 1-nF load. At 10-nF load, rise/fall times increase significantly (to ~60 ns), but the device remains functional. For loads >2 nF, paralleling both outputs (1OUT + 2OUT) is recommended to maintain sub-30-ns transitions - demonstrated in TI's Figure 28–31 test data.

Does the TPS2812PWR support paralleling its two outputs for higher gate current?

Yes - TI's application notes (Figures 28–31) confirm that paralleling 1OUT and 2OUT reduces effective output impedance and improves slew rate when driving large gate capacitances. This configuration is electrically valid and thermally safe within the TSSOP-8 package's 520-mW power rating at T_A ≤ 25°C, provided external routing maintains matched trace lengths.

What decoupling is required for stable operation of the TPS2812PWR?

TI specifies a 0.1-µF ceramic capacitor between V_CC and GND (pin 7 and pin 3), placed as close as possible to the device. When using the regulator, add a 0.1-µF ceramic capacitor from REG_OUT to GND (pin 5 to pin 3) and optionally a 4.7-µF electrolytic for improved transient response. These values are mandatory per SLVS132F Section "Application Information".