STMicroelectronics VNQ5E050KTR-E

Overview

VNQ5E050KTR-E from STMicroelectronics is a quad-channel automotive high-side driver in PowerSSO-24 package, delivering 50 mΩ on-resistance per channel, 27 A typical current limitation, and integrated diagnostics including open-load detection (on/off-state), short-to-VCC/ground indication, and thermal shutdown with auto-restart. It drives grounded resistive/inductive/capacitive loads in body control modules, lighting, and HVAC actuators.

For engineers reviewing the VNQ5E050KTR-E datasheet, VNQ5E050KTR-E pinout, VNQ5E050KTR-E application, or VNQ5E050KTR-E equivalent, key selection criteria include CMOS-compatible 3.0 V inputs, reverse-battery protection capability, diagnostic status pin behavior per channel, and power limitation-based overload management under ISO 7637-2 transients.

Technical Context

This device implements four independent VIPower™ M0-5 high-side switches with dedicated active-low STATUS pins and a shared STAT_DIS enable. Each channel integrates fast thermal transient limiting, output voltage clamping (41–52 V), and undervoltage lockout at 4.5 V with 0.5 V hysteresis.

Diagnostic logic supports simultaneous detection of overtemperature (T_J ≥ 150 °C), output stuck-to-V_CC, and open-load conditions-both during ON (I_OUT < 10 mA) and OFF (V_OUT > 2 V) states-with defined timing delays (t_DOL(on) = 200 µs, t_DSTKON = 180 µs).

Key Specifications

Pinout & Package

Package: PowerSSO-24 (exposed thermal pad connected to V_CC), surface-mount, RoHS-compliant ECOPACK®.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS4H160-Q1 and BTS7004-1EPP, the VNQ5E050KTR-E uniquely combines per-channel diagnostics, auto-restart thermal protection, and 50 mΩ conduction resistance - making it optimal for ASIL-B compliant body electronics requiring deterministic fault response and minimal system-level overhead.

Availability

VNQ5E050KTR-E is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting systems, and HVAC actuator control requiring stable component supply across extended temperature and transient stress conditions.

Supply support for VNQ5E050KTR-E 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-grade power ICs, microcontrollers, and sensors with AEC-Q100 qualification expertise.

The VNQ5E050KTR-E belongs to ST's VIPower™ high-side driver product line, engineered specifically for intelligent power distribution in 12 V/24 V automotive networks with emphasis on diagnostic completeness and EMC robustness.

FAQ

What is the maximum transient voltage the VNQ5E050KTR-E can withstand on V_CC?

The device supports up to 41 V DC transient supply voltage on V_CC, compliant with ISO 7637-2 Pulse 5a (load dump). Its integrated overvoltage clamp activates at 41–52 V depending on current, limiting output voltage rise during transients without external TVS diodes.

How does open-load detection work in the off-state?

In off-state, the device applies a weak internal current source to OUTPUTn and monitors resulting voltage. If V_OUT exceeds 2–4 V (per Table 9), it asserts STATUSn low after 20 µs delay (t_{d_vol}), indicating an open circuit. This works without external pull-up resistors but benefits from them for faster response.

Can STAT_DIS be left floating?

No - STAT_DIS must be actively driven high (≥2.1 V) to disable STATUS pins or pulled to ground (≤0.9 V) to enable them. Floating violates VIH/VIL thresholds and may cause undefined diagnostic behavior; Table 2 recommends a 10 kΩ pull-down resistor if unused.

Is reverse battery protection built-in or external?

Reverse battery protection requires external implementation: a series diode or resistor in the GND path (Figure 32). The IC itself tolerates only –0.3 V on V_CC and –14 V on GND when protected, but internal circuitry is not reverse-polarity hardened without that external network.