Texas Instruments TPS2815PWR

Overview

TPS2815PWR from Texas Instruments is a dual high-speed MOSFET driver with dual 2-input NAND logic gates, 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), operates from 4 V to 14 V supply, and supports −40°C to 125°C ambient temperature.

For engineers reviewing the TPS2815PWR datasheet, TPS2815PWR pinout, TPS2815PWR application, or TPS2815PWR equivalent, this page provides verified functional identity, confirmed NAND-gate logic architecture, validated 8-pin TSSOP package mapping, exact terminal roles per datasheet Figure 3 (top view), and two rigorously cross-checked alternative drivers for synchronous buck and half-bridge gate-drive use cases.

Technical Context

The TPS2815PWR implements two independent NAND-gated drivers - each with two noninverting inputs - enabling flexible enable/enable-bar or phase-control logic without external gates. Its CMOS input stage features Schmitt-trigger hysteresis (≈1.2–1.6 V at V_CC = 5 V) and <5 µA quiescent supply current, minimizing shoot-through risk during input transitions.

Output stage uses a bipolar-MOSFET parallel structure to achieve rail-to-rail swing (0.18 V low-level, 9.9 V high-level at V_CC = 10 V) while sustaining 2-A instantaneous drive into capacitive loads. Unlike TPS2811–TPS2813 variants, it omits the internal regulator - REG_IN and REG_OUT pins are unused and must be left unconnected.

Key Specifications

Pinout & Package

TPS2815PWR is housed in an 8-pin TSSOP (PW) package with 0.65 mm pitch, JEDEC MO-153 compliant, and rated for 520 mW power dissipation at T_A ≤ 25°C (derating 4.17 mW/°C above).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2815PWR, UCC27324DR offers higher drive strength but no on-chip logic, while TPS28225DR adds regulation and inversion but removes NAND functionality - making TPS2815PWR uniquely suited for compact, logic-integrated gate-drive where dual independent NAND control is required.

Availability

TPS2815PWR is available at Aetrix Electronics and suitable for synchronous buck converters, motor drive half-bridges, isolated flyback controllers, and industrial PLC output stages requiring stable component supply, guaranteed long-term sourcing, and full traceability.

Supply support for TPS2815PWR 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-speed, high-current MOSFET gate driving in power conversion systems - emphasizing timing precision, shoot-through immunity, and thermal robustness across industrial temperature ranges.

FAQ

What logic function does the TPS2815PWR implement, and how does it differ from TPS2814PWR?

The TPS2815PWR implements dual 2-input NAND gates - meaning each output goes LOW only when both inputs are HIGH. In contrast, TPS2814PWR uses dual 2-input AND gates with one inverting input per driver. This makes TPS2815PWR ideal for active-low enable schemes (e.g., disabling both MOSFETs when any input is LOW), whereas TPS2814PWR suits active-high AND logic. Both share identical pinout, timing, and drive specs.

Can the TPS2815PWR drive both high-side and low-side N-channel MOSFETs in a half-bridge configuration?

Yes, the TPS2815PWR can drive both high-side and low-side N-channel MOSFETs in a half-bridge, provided the high-side driver is bootstrapped or supplied via isolated bias. Its dual independent NAND outputs deliver matched 2-A peak current and ≤40 ns propagation delay, ensuring tight timing control. However, it does not include high-side level-shifting circuitry - external bootstrap diode/capacitor or isolated supply is required for high-side gate bias.

What are the absolute maximum ratings for VCC and input voltages on the TPS2815PWR?

The TPS2815PWR has an absolute maximum V_CC rating of −0.3 V to 15 V, and input voltage (1IN1, 1IN2, 2IN1, 2IN2) must stay within −0.3 V to V_CC + 0.5 V. Exceeding these limits risks permanent damage. Recommended operating V_CC is 4 V to 14 V, and input logic levels should remain within 0 V to V_CC to ensure reliable NAND operation and avoid latch-up.

Is a decoupling capacitor required for the TPS2815PWR, and what value is recommended?

Yes, a 0.1-µF ceramic decoupling capacitor is mandatory between V_CC and GND, placed as close as possible to the TPS2815PWR pins. This capacitor supplies instantaneous current during fast 2-A output transitions and prevents supply rail collapse. For high-noise environments or heavy loading, adding a 4.7-µF electrolytic in parallel further stabilizes V_CC. Omitting this capacitor causes erratic output behavior and potential device failure.

Does the TPS2815PWR include an internal voltage regulator like the TPS2811–TPS2813 variants?

No, the TPS2815PWR does not include an internal regulator. Pins REG_IN and REG_OUT are not connected internally and must be left unconnected (NC). This distinguishes it from TPS2811/2812/2813, which integrate a 10–13 V regulator for operation up to 40 V input. The TPS2815PWR is intended for systems with a clean, regulated 4–14 V supply - simplifying design where external regulation already exists.