STMicroelectronics VN610SP

Overview

VN610SP from STMicroelectronics is a single-channel high-side solid state relay (HSR) designed for driving resistive or inductive loads with one side grounded. It delivers 45A output current, features 10mΩ R_DS(on) at 25°C, integrates proportional analog current sense (K ≈ 4400 A/A), and provides active over-voltage clamp (41–55V), under-voltage shutdown (4V typ), and thermal shutdown (150°C). It is used in automotive body control modules for headlamp, fog lamp, and fan motor switching.

For engineers reviewing the VN610SP datasheet, VN610SP pinout, VN610SP application, or VN610SP equivalent, key selection considerations include its PowerSO-10 package thermal performance (R_thj-case = 0.9°C/W), CMOS-compatible input logic (VIH = 3.25V), load dump immunity per ISO 7637-2 Pulse 2/5a, reverse battery protection capability, and integrated diagnostic current sense output with 500µs response delay.

Technical Context

The VN610SP employs ST's VIPower M0-3 BCD technology to integrate a vertical power MOSFET, driver, protection circuitry, and analog current sense amplifier in a monolithic die. Its high-side architecture places the switch between VCC and load, enabling ground-referenced load control without floating return paths.

Protection functions operate autonomously: over-voltage shutdown triggers at 36V (typ), under-voltage disables output below 4V (typ), and thermal shutdown activates at 150°C with 15°C hysteresis. Current limitation is adaptive-ILIM ranges from 45A (13V) to 120A (36V)-and combines with automatic restart after fault clearance.

Key Specifications

Pinout & Package

Package: PowerSO-10 (exposed die pad, thermally enhanced SO-10 variant with 10 leads in staggered dual-row configuration; JEDEC MS-012AC compliant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with VN610SP, STVN7016AJR trades analog current sense and thermal robustness for digital configurability and higher channel count, while BTS716G sacrifices sensing fidelity and transient immunity for lower unit cost and simpler layout.

Availability

VN610SP is available at Aetrix Electronics and suitable for automotive body control, commercial vehicle lighting, industrial motor control, and off-road equipment requiring stable component supply across extended temperature and voltage ranges.

Supply support for VN610SP 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 broad AEC-Q100 qualification coverage.

The VN610SP belongs to ST's VIPower high-side driver product line, engineered specifically for robust, diagnostic-capable load switching in harsh automotive environments where reliability, integration, and transient immunity are critical.

FAQ

What is the maximum continuous output current rating for VN610SP?

The VN610SP is rated for 45A continuous output current under specified thermal conditions (T_c ≤ 25°C, mounted on ≥6 cm² copper). Derating applies above 25°C case temperature per Figure 13; at 100°C case, ILIM drops to ~75A. Actual usable current depends on PCB layout, heatsinking, and ambient airflow.

Does VN610SP require an external current sense resistor?

No - VN610SP provides a proportional current source output (ISENSE pin) that requires only an external load resistor (e.g., 3.9kΩ) to convert to voltage. The device internally generates I_SENSE = I_OUT/K, eliminating the need for precision shunt resistors, associated amplifiers, or layout-sensitive Kelvin connections.

How does VN610SP handle reverse battery connection?

VN610SP tolerates –0.3V on V_CC per absolute max ratings and supports two external protection schemes: a series resistor (RGND) in the ground path or a Schottky diode (DGND). These prevent damage during reverse polarity jump-starts and enable safe operation without additional MOSFET-based reverse protection circuits.

Can VN610SP replace mechanical relays directly?

Yes - VN610SP is designed as a drop-in replacement for SPST automotive relays (e.g., 40A Bosch-type) in high-side configurations. It matches typical relay coil drive requirements (CMOS logic input), exceeds contact current rating (45A vs. 40A), and adds diagnostics, faster switching (<30µs), silent operation, and infinite cycle life without contact wear.