Texas Instruments SN75372PE4

Overview

SN75372PE4 from Texas Instruments is a dual high-speed MOSFET gate driver IC with totem-pole output stage, designed to interface TTL logic with power MOSFETs. It features independent VCC1 (5 V) and VCC2 (up to 24 V) supplies, 40 mA low-level output current per channel, 10–65 ns propagation delay, and operation across 0°C to 70°C for industrial motor control and switching power supply gate drive applications.

For engineers reviewing the SN75372PE4 datasheet, SN75372PE4 pinout, SN75372PE4 application, or SN75372PE4 equivalent, this page delivers verified electrical specs, thermal derating data, load-capacitance-dependent timing behavior, and real-world MOSFET drive validation against IRF151 - all critical for high-speed gate driver selection and layout-aware thermal design.

Technical Context

The SN75372PE4 implements two independent NAND-gated totem-pole drivers, each with active pull-up and active pull-down stages optimized for charging/discharging large MOSFET input capacitances (e.g., 4000 pF IRF151). Its dual-supply architecture isolates TTL-level logic (VCC1 = 5 V) from high-voltage gate drive rails (VCC2 = 4.75–24 V), enabling direct interfacing without level-shifting circuitry.

Each channel delivers 40 mA sink and −10 mA source capability at VCC2 = 20 V, supports peak output currents up to 500 mA (10 ms pulse), and exhibits load-dependent propagation delays - e.g., tPLH = 40 ns typical at CL = 390 pF, rising to 180 ns at CL = 4000 pF - requiring careful capacitive load budgeting in high-frequency designs.

Key Specifications

Pinout & Package

SN75372PE4 uses an 8-pin PDIP (Plastic Dual In-line Package) with 0.300-inch body width and standard through-hole mounting. Pin 1 is located at the left end of the top row when viewed from the top with notch or dot orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UCC37322P and TC4427ACPA, SN75372PE4 uniquely supports dual-supply operation up to 24 V while maintaining TTL-compatible inputs - making it optimal for legacy industrial systems where 5 V logic coexists with 24 V field buses and thermal management prioritizes steady-state dissipation over peak pulse capability.

Availability

SN75372PE4 is available at Aetrix Electronics and suitable for industrial motor control, switching power supply gate drive, and PLC output module applications requiring stable component supply, long-term lifecycle continuity, and through-hole manufacturability.

Supply support for SN75372PE4 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 connectivity technologies, with over 50 years of innovation in power management and interface solutions.

The SN75372PE4 belongs to TI's legacy power interface product line, engineered specifically for robust, cost-effective TTL-to-MOSFET translation in industrial automation and power conversion systems where reliability under sustained load and thermal stability are paramount.

FAQ

What is the maximum safe VCC2 voltage for continuous operation of SN75372PE4?

The SN75372PE4 supports continuous VCC2 operation up to 24 V, as specified in recommended operating conditions. Absolute maximum rating is 25 V, but sustained use above 24 V risks accelerated parametric drift and reduced long-term reliability. For designs targeting 24 V gate drive, ensure VCC2 regulation stays within 4.75–24 V with ±5% tolerance, and include overvoltage clamping on the VCC2 rail to protect SN75372PE4 during transients.

Can SN75372PE4 drive both high-side and low-side N-channel MOSFETs in a half-bridge configuration?

Yes, SN75372PE4 can drive both high-side and low-side N-channel MOSFETs in a half-bridge, provided the high-side driver's VCC2 is referenced to the switching node (i.e., bootstrapped or isolated supply). The IC itself does not integrate bootstrap circuitry, so external bootstrap diode/capacitor or isolated DC-DC supply is required for high-side VCC2. Each channel operates independently, allowing matched timing control essential for preventing shoot-through.

Does SN75372PE4 require external pull-up resistors on its outputs?

No, SN75372PE4 does not require external pull-up resistors because it features active totem-pole outputs with integrated pull-up transistors powered by VCC2. Unlike open-collector drivers, it actively sources current (up to −10 mA) and sinks current (up to 40 mA), enabling fast, low-impedance switching without external components - a key advantage confirmed in Figure 13(a) and (b) of the SN75372PE4 datasheet.

How does temperature affect propagation delay in SN75372PE4?

Propagation delay in SN75372PE4 increases with rising temperature: tPLH rises from ~40 ns at 25°C to ~140 ns at 70°C (Figure 6), and tPHL from ~30 ns to ~120 ns (Figure 7). This variation must be accounted for in timing-critical applications like synchronous rectification or phase-shifted full-bridge control, where worst-case delay margins determine minimum dead time settings.

Is SN75372PE4 RoHS compliant and lead-free?

Yes, SN75372PE4 is RoHS compliant and features NiPdAu (NIPDAU) lead finish, as documented in TI's Package Option Addendum. It meets JEDEC J-STD-020 moisture sensitivity Level-1 (unlimited floor life at ≤30°C/60% RH) and is rated for reflow up to 260°C peak, supporting standard lead-free assembly processes without special handling requirements.