STMicroelectronics VND5E025MK-E

Overview

VND5E025MK-E from STMicroelectronics is a double-channel high-side driver IC for 12V automotive grounded loads, featuring integrated analog current sense per channel, 25 mΩ typical on-state resistance, 60 A typical current limitation, and 4.5–28 V operating supply range. It delivers diagnostic feedback (proportional ISENSE), thermal shutdown with auto-restart, reverse battery protection, and CMOS-compatible 3.0 V inputs for microcontroller interfacing in body control modules.

For engineers reviewing the VND5E025MK-E datasheet, VND5E025MK-E pinout, VND5E025MK-E application, or VND5E025MK-E equivalent, key selection criteria include per-channel current sense accuracy across –40°C to 150°C, power limitation behavior under short-circuit, thermal impedance in PowerSSO-24, and CS_DIS-controlled sense disable for multi-device resistor sharing.

Technical Context

The device implements dual independent VIPower™ M0-5 high-side switches with active power limitation for inrush and overload management, coupled with dedicated analog current sense circuitry delivering ISENSE proportional to load current over 0.05–10 A with ±13% ratio drift across temperature. Each channel includes undervoltage lockout (4.5 V threshold), overvoltage clamp (up to 46 V), and thermal shutdown at 150°C with 135°C reset hysteresis.

Diagnostic signaling is tightly coupled to protection states: current sense remains active during power limitation and thermal shutdown, and fault conditions drive VSENSEH up to 8 V or ISENSEH up to 9 mA. The CS_DIS pin enables hardware-level disabling of both current sense outputs simultaneously using a single CMOS-compatible control signal.

Key Specifications

Pinout & Package

Housed in the PowerSSO-24 surface-mount package with exposed thermal pad (TAB = VCC), the device features 24-pin configuration optimized for thermal dissipation and automotive EMI robustness. Pin 1–12 and 13–24 are arranged in two rows; pins 1–6 and 19–24 serve primary I/O and power functions, while pins 7–18 accommodate diagnostics and control signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VND5E025MK-E, the VND5E050AK-E trades 25 mΩ conduction loss and 60 A fault tolerance for lower unit cost in thermally relaxed designs, while the TPS27082L sacrifices analog diagnostics and dual-channel integration to achieve smaller size and simpler interface in cost-sensitive single-load systems.

Availability

VND5E025MK-E is available at Aetrix Electronics and suitable for body control modules, LED headlamp drivers, engine bay fan controllers, and heated rear window systems requiring stable component supply across automotive production lifecycles.

Supply support for VND5E025MK-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 AEC-Q100 qualification expertise.

The VND5E025MK-E belongs to ST's VIPower™ high-side driver family, engineered specifically for automotive body electronics demanding integrated protection, diagnostics, and robustness against harsh electrical environments.

FAQ

What is the maximum allowable reverse battery voltage the VND5E025MK-E can withstand?

The device itself is not reverse-battery tolerant on the GND pin; however, it supports external reverse-battery protection networks as shown in Figure 29. When implemented with a series diode (DGND) or resistor (RGND) in the ground path, the system withstands –14 V applied to battery terminals, verified per ISO 16750-2. The internal V_Fn rating is –0.3 V, so external clamping is mandatory.

How does the current sense disable (CS_DIS) function affect diagnostic reporting?

When CS_DIS is pulled high (>2.1 V), both CURRENT SENSE1 and CURRENT SENSE2 outputs are disabled - their current sources turn off, eliminating leakage and allowing a single external sense resistor to be shared among multiple VND5E025MK-E devices. Diagnostic flags (e.g., thermal shutdown indication) remain active on the outputs, but analog current feedback is suspended until CS_DIS returns low.

Can the VND5E025MK-E drive inductive loads like fuel injectors without external flyback protection?

No external flyback diode is required because the device integrates an active overvoltage clamp that limits V_OUT to V_CC – 41 V during turn-off (Table 8). This clamping action safely dissipates demagnetization energy from inductive loads up to 6 mH at 2 A (Figure 31), meeting ISO 7637-2 pulse 1 immunity requirements without added components.

What is the thermal performance difference between one-channel and two-channel operation in PowerSSO-24?

With one channel ON, R_thj-case is 1.35 °C/W (Table 4); with both channels active, junction-to-case resistance increases due to shared thermal mass, resulting in ~1.8 °C/W effective value. Derating curves in Figure 33 show that doubling copper area from 100 mm² to 400 mm² reduces R_thj-amb by 35%, enabling 4.2 A continuous per channel at 85°C ambient with adequate PCB copper.