STMicroelectronics VND5E050AKTR-E

Overview

VND5E050AKTR-E from STMicroelectronics is a dual-channel automotive high-side driver in PowerSSO-24 package, delivering 27 A typical current limit per channel, 50 mΩ on-state resistance at 25°C, and analog current sense with ±15% full-scale accuracy across –40°C to +150°C. It drives 12 V grounded resistive/inductive/capacitive loads (e.g., solenoids, lamps, valves) with integrated diagnostics including off-state open-load detection, short-to-VCC reporting, and thermal shutdown with auto-restart.

For engineers reviewing the VND5E050AKTR-E datasheet, VND5E050AKTR-E pinout, VND5E050AKTR-E application, or VND5E050AKTR-E equivalent, key selection criteria include its 4.5–28 V operating range, reverse-battery protection capability, CMOS-compatible 3.0 V logic inputs, and dedicated CS_DIS pin for shared current-sense resistor architectures in multi-channel ECU designs.

Technical Context

This device implements two independent VIPower M0-5 high-side switches with active power limitation for inrush and overload management, plus real-time thermal monitoring via junction temperature sensing. Each channel features a proportional current sense output (K₀ = 2250 typ.) referenced to GND, enabling precise load current measurement without shunt resistors.

Diagnostic functions are hardware-asserted: short-to-VCC is detected by monitoring output voltage collapse during OFF state; off-state open load is identified via leakage current thresholding; thermal shutdown triggers at 150°C with 135°C auto-restart hysteresis. Protection includes undervoltage lockout (4.5 V), overvoltage clamp (41–52 V), and self-limiting fast thermal transients.

Key Specifications

Pinout & Package

Package: PowerSSO-24 - thermally enhanced exposed-tab surface-mount package with 24 leads, optimized for automotive PCBs requiring high power density and low R_thj-amb (see Fig. 40).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS4H160-Q1 and BTS724G, VND5E050AKTR-E provides superior current-handling (27 A), finer-grained analog diagnostics (proportional sense with disable control), and broader voltage operation (4.5–28 V), making it optimal for demanding automotive power distribution nodes requiring functional safety compliance and design flexibility.

Availability

VND5E050AKTR-E is available at Aetrix Electronics and suitable for automotive body control, engine management, ADAS domain controllers, and electric power steering systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for VND5E050AKTR-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 specializing in automotive-grade power management, microcontrollers, and sensors, with ISO/TS 16949-certified manufacturing and AEC-Q100 qualified products.

VND5E050AKTR-E belongs to ST's VIPower™ family of intelligent power switches, designed specifically for automotive power distribution and load driving applications requiring integrated protection, diagnostics, and robustness against harsh electrical environments.

FAQ

What is the maximum continuous output current per channel?

The VND5E050AKTR-E does not specify a continuous current rating due to thermal dependence on PCB layout and ambient conditions. Its DC current limit is 27 A (typical) under short-circuit conditions with active power limitation. Continuous current must be determined from thermal data: at T_amb = 85°C with 100 cm² copper area, max continuous I_OUT ≈ 12 A per channel in PowerSSO-24 (R_thj-amb ≈ 18°C/W, T_jmax = 150°C). Derating curves are provided in Figures 36 and 40.

How does the current sense function work, and what is its accuracy?

The current sense pins deliver a proportional current output (I_SENSE = I_OUT / K, where K = 2250 typ.) referenced to GND. Accuracy is ±15% over –40°C to +150°C and 8–18 V V_CC, with drift <±0.5%/A across load range (Figure 10). The CS_DIS pin allows disabling both sense channels simultaneously to share one external sense resistor across multiple devices, reducing system-level component count.

Can VND5E050AKTR-E drive inductive loads like solenoids or motors?

Yes - it is explicitly qualified for inductive loads. The device integrates active demagnetization energy handling (EMAX = 104 mJ at V_bat = 13.5 V, L = 3 mH) and features an output clamp (V_DEMAG = V_CC – 41 V) to suppress flyback voltage spikes. Turn-off delay is 45 µs (typ), and maximum turn-off current vs. inductance is characterized in Figure 34, supporting reliable operation with solenoids, fuel injectors, and small DC motors.

Is reverse battery protection built-in, or does it require external components?

Reverse battery protection is not fully integrated - the device requires an external protection network on the GND pin (e.g., series diode or resistor as shown in Figure 32) to prevent damage during –12 V battery connection. However, the OUTPUT pins include internal reverse-battery diodes (V_F = 0.7 V @ –4 A, 150°C), and VCC withstands reverse voltage down to –0.3 V. This hybrid approach balances silicon area, thermal performance, and system-level robustness.