STMicroelectronics EV-VN5E050AJ

Overview

VN5E050AJ-E from STMicroelectronics is a single-channel automotive high-side driver in PowerSSO-12 package, delivering 27 A current limitation, 50 mΩ on-resistance at 25°C, and analog current sense with ±10% ratio drift over temperature. It drives 12V grounded resistive/inductive/capacitive loads-including LED strings-with integrated diagnostics and protection for body control modules.

For engineers reviewing the VN5E050AJ-E datasheet, VN5E050AJ-E pinout, VN5E050AJ-E application, or VN5E050AJ-E equivalent, key selection criteria include its 4.5–28 V operating range, CMOS-compatible 3.0 V input logic, thermal shutdown with autorestart, reverse-battery protection capability, and proportional current sense output enabling real-time load monitoring in safety-critical automotive subsystems.

Technical Context

The device implements active power limitation to manage inrush and overload conditions without external circuitry, using internal thermal sensing and dynamic voltage drop control. Its VIPower M0-5 process enables integration of high-voltage DMOS output stage, diagnostic logic, and precision current mirror sensing in one die.

Diagnostic functions operate independently per channel: OFF-state open-load detection uses internal current injection, short-to-VCC detection relies on output voltage clamping behavior, and current sense disable (CS_DIS) allows shared external sense resistor usage across multiple channels. All protections-undervoltage lockout, overvoltage clamp, and overtemperature shutdown-are fully autonomous and latched or auto-recovering as specified.

Key Specifications

Pinout & Package

Package: PowerSSO-12 (exposed thermal pad, surface-mount, RoHS-compliant ECOPACK®).

Key Features

Applications

Equivalent & Alternatives

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

Compared with VN5E050AJ-E, TPS27081AQPWPRQ1 trades analog diagnostics for lower cost and smaller footprint, while IPS1025H retains functional equivalence but sacrifices current sense disable flexibility-making VN5E050AJ-E optimal for systems requiring multi-channel current monitoring with minimal external components.

Availability

VN5E050AJ-E is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting control, and engine bay actuator applications requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term production support.

Supply support for VN5E050AJ-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, Switzerland, specializing in automotive-grade power ICs, microcontrollers, and sensors with vertical manufacturing capabilities.

VN5E050AJ-E belongs to the VIPower® high-side driver product line, engineered specifically for intelligent power distribution in 12 V automotive electrical architectures-emphasizing protection autonomy, diagnostic richness, and thermal resilience.

FAQ

What is the maximum inductive load energy the VN5E050AJ-E can safely demagnetize?

The device handles up to 104 mJ of demagnetization energy at V_CC = 13.5 V with L = 3 mH and R_L = 0 Ω, as verified in Figure 34. This value assumes T_j,start = 150°C and I_OUT = I_LIML(typ.). Exceeding this requires external clamping or reduced inductance to avoid thermal runaway during turn-off.

How does the CS_DIS pin affect current sense accuracy and timing?

Pulling CS_DIS high disables the internal current mirror, reducing I_SENSE leakage to ≤1 µA and eliminating sense-related propagation delays. When enabled, t_DSENSE2H is 80–250 µs from INPUT rising edge to I_SENSE reaching 90% of full scale (Figure 4), with <40 µs delay between I_OUT and I_SENSE edges under nominal conditions.

Can the VN5E050AJ-E drive capacitive loads without oscillation or latch-up?

Yes-the device incorporates active power limitation that caps peak inrush current during capacitive charging, preventing voltage droop-induced logic glitches or thermal stress. Test data in Figure 13 confirms stable intermittent overload behavior with automatic recovery, validated for C_LOAD up to 10,000 µF at 13 V.

What external components are mandatory for reverse-battery protection?

A series diode (e.g., STTH1R06) or resistor (≥100 mΩ) must be placed in the GND path per Figure 32. The diode solution minimizes voltage drop but adds forward conduction loss; the resistor solution avoids conduction loss but introduces ground offset. Neither approach requires additional ICs-the VN5E050AJ-E's internal structure tolerates reverse V_CC down to -0.3 V only when GND is properly protected.