Texas Instruments TPS2814PWR

Overview

TPS2814PWR from Texas Instruments is a dual 2-input AND gate MOSFET driver with one inverting input per channel, designed for high-speed gate driving of n-channel and p-channel power MOSFETs. It delivers 2-A peak source/sink current, achieves ≤25-ns rise/fall times (V_CC = 14 V, C_L = 1 nF), operates from 4-V to 14-V supply, and supports −40°C to 125°C ambient range - enabling use in synchronous buck converters and motor gate-drive stages.

For engineers reviewing the TPS2814PWR datasheet, TPS2814PWR pinout, TPS2814PWR application, or TPS2814PWR equivalent, key selection criteria include its dual AND logic with single inversion per channel, absence of internal regulator (unlike TPS2811/12/13), SOIC-8 (PW) package thermal limits, and verified 2-A transient drive capability into capacitive gate loads.

Technical Context

The TPS2814PWR implements two independent CMOS-input AND gates, each with one noninverting and one inverting input (1IN1•1IN2 and 2IN1•2IN2), producing rail-to-rail buffered outputs capable of 2-A instantaneous current. Its front-end uses Schmitt-trigger inputs with ≈2/3 V_CC positive threshold and ≈1/3 V_CC negative threshold, delivering high noise immunity and shoot-through current <6 mA.

Output stage combines bipolar and MOSFET transistors in parallel to ensure robust low-impedance switching from V_CC to GND - critical for reliable turn-off of low-threshold MOSFETs. No internal regulator is present; REG_IN and REG_OUT pins are unused and must be left unconnected or tied to V_CC/GND as needed for board compatibility.

Key Specifications

Pinout & Package

TSSOP-8 (PW) package: 3.0 mm × 4.4 mm, 0.65-mm pitch, exposed pad not electrically connected. Thermal resistance θ_JA = 240°C/W; power dissipation limited to 520 mW at T_A ≤ 25°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2814PWR, TPS2814D offers identical functionality in a thermally more robust package but occupies 3× more board area; UCC27524ADRV trades integrated logic for faster edges and wider supply range, necessitating external gating for equivalent control behavior.

Availability

TPS2814PWR is available at Aetrix Electronics and suitable for synchronous buck converters, motor gate-drive stages, industrial SMPS, and LED dimming systems requiring stable component supply, guaranteed long-term availability, and traceable sourcing.

Supply support for TPS2814PWR 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 ICs, with decades of expertise in high-reliability power interface solutions.

The TPS28xx series was engineered specifically for high-frequency, high-current MOSFET gate driving in power conversion - emphasizing speed, shoot-through immunity, and rail-to-rail output capability across extended temperature ranges.

FAQ

What logic function does the TPS2814PWR implement?

The TPS2814PWR implements two independent 2-input AND gates, each with one noninverting input (1IN1, 2IN1) and one inverting input (1IN2, 2IN2). Output 1 equals 1IN1 AND (NOT 1IN2); Output 2 equals 2IN1 AND (NOT 2IN2). This configuration supports enable/inhibit control without external logic. The TPS2814PWR does not include an internal regulator - REG_IN and REG_OUT pins are unused and must be left floating or tied to V_CC/GND per layout requirements.

Can the TPS2814PWR drive both high-side and low-side n-channel MOSFETs in a half-bridge?

Yes, the TPS2814PWR can drive both high-side and low-side n-channel MOSFETs in a half-bridge configuration when paired with appropriate level-shifting circuitry for the high-side gate. Its 2-A peak current, rail-to-rail output swing, and <40-ns propagation delay ensure fast, synchronized switching. However, the TPS2814PWR itself does not integrate bootstrap or high-voltage level-shift functions - those must be implemented externally. The TPS2814PWR's dual AND logic also allows independent enable control per channel.

What decoupling capacitance is required for stable operation of the TPS2814PWR?

A minimum 0.1-µF ceramic capacitor must be placed between V_CC and GND, as close as possible to the TPS2814PWR pins, to supply instantaneous current during fast switching transitions. For systems with high di/dt or shared supply rails, adding a 4.7-µF electrolytic or tantalum capacitor in parallel improves low-frequency stability. The TPS2814PWR's low 5-µA quiescent current makes it insensitive to leakage, but ESR and placement remain critical for maintaining <25-ns edge fidelity.

Does the TPS2814PWR have built-in protection features such as overcurrent or thermal shutdown?

No, the TPS2814PWR does not include overcurrent protection, thermal shutdown, or undervoltage lockout. It is a pure gate driver with no internal fault detection circuitry. Protection must be implemented externally - for example, using current-sense resistors and comparator-based shutdown signals fed into the inverting inputs (1IN2/2IN2) to disable outputs during fault conditions. This design choice prioritizes speed and simplicity, making the TPS2814PWR suitable for systems where protection is managed at the controller level.

How does the TPS2814PWR compare to the TPS2811PWR in terms of regulator capability?

The TPS2814PWR has no internal regulator - REG_IN and REG_OUT pins are not functional and must be left unconnected or tied to V_CC/GND. In contrast, the TPS2811PWR integrates a 10-V to 13-V regulator capable of supplying up to 20 mA, allowing operation from 14-V to 40-V input rails. This makes TPS2811PWR suitable for high-input-voltage applications like industrial 24-V/48-V systems, while TPS2814PWR is optimized for fixed 5-V/12-V gate-drive supplies where regulator overhead is unnecessary.