STMicroelectronics VPS2535HTR

Overview

VPS2535H from STMicroelectronics is a dual-channel high-side driver with integrated analog current sense, designed for driving resistive, inductive, or capacitive loads referenced to ground in automotive and industrial power distribution systems. It features 35 mΩ typical on-state resistance per channel, 42 A current limitation, 8–36 V operating supply range, and fault reporting via proportional current-sense outputs. Used in body control modules for solenoid, relay, and lamp drivers.

For engineers reviewing the VPS2535H datasheet, VPS2535H pinout, VPS2535H application, or VPS2535H equivalent, key selection criteria include latch-off thermal/overload protection behavior, FR_Stby reset timing (2–24 µs), open-load detection in off-state, and ±15% current-sense ratio drift over temperature.

Technical Context

The VPS2535H implements two independent VIPower® high-side switches with active voltage clamping (58 V max transient), undervoltage shutdown (5 V threshold), and self-limiting fast thermal transients. Each channel integrates a precision analog current mirror delivering I_SENSE = I_OUT/K (K ≈ 2080–2755 depending on load and temperature).

Fault detection includes off-state open-load (V_OUT > 4 V), output short-to-V_CC (180–1800 µs delay), and thermal shutdown latching at 150–200 °C with 7 °C hysteresis. Reset requires a low pulse on FR_Stby; standby mode activates when all inputs and FR_Stby are held low.

Key Specifications

Pinout & Package

Delivered in PowerSSO-24 package: thermally enhanced exposed-pad SO-24 variant optimized for PCB heat dissipation (R_thj-case = 2 °C/W max). Pin count: 24 terminals, including dual power outputs, dedicated current sense pins, and shared fault reset/standby control.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side driver applications.

Compared with ST's VPS2535H, the TPS4H160-Q1 trades analog current fidelity and dual-channel density for digital configurability and higher reliability grade, while the STSPIN32F0B merges control and drive but sacrifices raw current capability and diagnostic granularity.

Availability

VPS2535H is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, and off-highway equipment valve control requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for VPS2535H 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in automotive, industrial, and power management ICs with vertical manufacturing and AEC-Q100 qualification expertise.

The VPS2535H belongs to ST's VIPower® high-side driver family, engineered specifically for robust, intelligent power distribution in harsh automotive and industrial environments where reliability, diagnostics, and thermal resilience are critical.

FAQ

What is the function of the FR_Stby pin beyond fault reset?

The FR_Stby pin serves dual roles: a low-level pulse (≥2 µs) resets latched faults (overload, thermal shutdown), while holding it low continuously disables both outputs and places the device into ultra-low-power standby mode (I_S ≤ 2 µA). This enables system-level power gating without removing VCC.

How does the VPS2535H handle inductive load turn-off energy?

During inductive turn-off, the device clamps the output voltage to V_CC − 58 V (min) using an internal active clamp, limiting negative dV/dt to 0.3 V/µs to prevent spurious turn-on. This eliminates need for external flyback diodes in many applications, reducing component count and PCB space.

Can the current sense outputs (CS1/CS2) be used for closed-loop current regulation?

Yes - CS1 and CS2 deliver a current proportional to their respective channel load current (I_SENSE = I_OUT/K), with K ranging from 1952 to 3840 depending on load and temperature. When paired with an external op-amp and DAC, this enables analog current regulation with ±10% accuracy over temperature and load range.

Is the VPS2535H qualified to AEC-Q100, and what grade does it meet?

Yes, the VPS2535H is qualified to AEC-Q100 Rev H, Grade 1 (−40 °C to +125 °C ambient), with extended operating junction temperature up to +150 °C. Its design incorporates ESD protection (HBM 4 kV, CDM 750 V) and robustness against load dump, reverse battery, and loss-of-ground events per automotive stress test standards.