STMicroelectronics VND5E050MCKTR-E

Overview

VND5E050MCKTR-E from STMicroelectronics is a double-channel high-side driver IC for 12 V automotive grounded loads, featuring integrated analog current sense per channel, 50 mΩ typical on-state resistance, 27 A typical current limitation, and CMOS-compatible 3 V/5 V inputs. It delivers diagnostic feedback (overload, short-to-ground, thermal shutdown) and protection including undervoltage shutdown, overvoltage clamp, reverse battery tolerance, and self-limiting thermal transients - deployed in body control modules for LED and solenoid driving.

For engineers reviewing the VND5E050MCKTR-E datasheet, VND5E050MCKTR-E pinout, VND5E050MCKTR-E application, or VND5E050MCKTR-E equivalent, key selection considerations include channel-wise current sense ratio accuracy (±15% drift over -40°C to +150°C), PowerSSO-24 thermal resistance (2.7°C/W junction-to-case), and active power limitation behavior during inrush and overload events.

Technical Context

This device implements two independent VIPower® M0-5 high-side switches with dedicated analog current sense outputs (CS1/CS2) and a shared CS_DIS enable pin. Each channel provides proportional current sensing (K₀ = 1440–3630 A/A), fast overload detection via power limitation, and thermal shutdown with auto-restart at 150–200°C.

Protection logic integrates undervoltage lockout (VUSD = 4.5 V typ), overvoltage clamp (41–52 V), output voltage drop limitation (25 mV min), and loss-of-ground/VCC detection. The 3 V/5 V CMOS-compatible inputs support direct interfacing with automotive microcontrollers without level-shifting.

Key Specifications

Pinout & Package

Supplied in PowerSSO-24 package: thermally enhanced exposed-tab SOIC with 24 leads, optimized for PCB copper area heat spreading (R_thj-amb down to 15°C/W with 100 cm² copper).

Key Features

Applications

Equivalent & Alternatives

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

Compared with VND5E050MCKTR-E, the VND5E025MKTR-E offers higher current capability and lower conduction loss but lacks identical diagnostic granularity; the TPS27082LDR trades automotive robustness and dual-channel integration for smaller footprint and simpler biasing - making it unsuitable for safety-critical or high-fault-energy environments.

Availability

VND5E050MCKTR-E is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting systems, smart junction boxes, and engine bay solenoid drivers requiring stable component supply across extended temperature and transient-voltage conditions.

Supply support for VND5E050MCKTR-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, industrial, and power management ICs with vertical manufacturing and AEC-Q100 qualification expertise.

VND5E050MCKTR-E belongs to ST's VIPower® high-side driver product line, engineered specifically for ISO 16750-compliant automotive power distribution with integrated diagnostics and protection - targeting replacement of electromechanical relays in next-generation ECUs.

FAQ

What is the function of the CS_DIS pin?

The CS_DIS pin is an active-high CMOS-compatible control input that disables both analog current sense outputs (CS1 and CS2) when driven high. This allows sharing of a single external sense resistor across multiple VND5E050MCKTR-E devices in multi-channel systems, reducing component count and PCB area. When CS_DIS is low or floating (with 10 kΩ pull-down per Table 2), current sensing operates normally per channel.

How does the device handle reverse battery conditions?

VND5E050MCKTR-E tolerates −0.3 V on VCC and −200 mA on GND, but full reverse battery protection requires an external network on the GND pin - either a series resistor (RGND) or series diode (DGND) as detailed in Section 3.1 of the datasheet. The internal structure prevents latch-up or destruction under reverse polarity, but sustained reverse current must be limited externally to avoid overheating.

Can this device drive inductive loads without external flyback components?

Yes - the device integrates an active demagnetization clamp (V_DEMAG = V_CC − 41 V) and output voltage drop limitation (V_ON ≥ 25 mV) to safely absorb inductive kickback energy during turn-off. For L = 6 mH and I_OUT = 2 A, maximum dissipated energy is 104 mJ (Table 4), sufficient for typical automotive solenoids and valves without external diodes - provided PCB copper area meets thermal requirements.

What is the accuracy of the current sense function over temperature?

The current sense ratio (K₀ = I_OUT/I_SENSE) exhibits ±15% drift over −40°C to +150°C at 50 mA load (Table 9), tightening to ±6% at 4 A. This variation is due to MOSFET threshold and gain shifts in the VIPower® process. For high-accuracy applications, system-level calibration at hot/cold extremes is recommended - especially when using the sense output for closed-loop current regulation or precise fault thresholding.