STMicroelectronics VND670SP

Overview

VND670SP from STMicroelectronics is a dual high-side switch IC with integrated gate drivers for full-bridge motor control, featuring 30 mΩ R_DS(on) per channel, 15 A continuous output current, and 40 V maximum supply voltage. It integrates two VIPower M0-3 high-side MOSFETs and drives external low-side MOSFETs in automotive DC motor applications including power seat and window lift systems.

For engineers reviewing the VND670SP datasheet, VND670SP pinout, VND670SP application, or VND670SP equivalent, key selection criteria include PWM operation up to 10 kHz, cross-conduction protection, thermal shutdown with current limiting, reverse battery protection, and diagnostic feedback via DIAGA/ENA and DIAGB/ENB pins.

Technical Context

The device implements a dual-channel high-side driver architecture with independent logic inputs (INA/INB) and enable/diagnostic pins (DIAGA/ENA, DIAGB/ENB), supporting clockwise, counter-clockwise, and brake modes via truth-table-controlled switching. Each channel includes dedicated current limitation (30–45 A) and thermal shutdown (150–200 °C).

Protection functions are hardware-asserted: undervoltage shutdown at 5.5 V, overvoltage clamp at V_CC−41 V, short-to-battery detection via external MOSFET saturation voltage threshold (2.5–5.5 V), and dead-time control (600–1800 µs) between external low-side turn-on events.

Key Specifications

Pinout & Package

Supplied in PowerSO-10 package: thermally enhanced 10-pin surface-mount package with exposed die pad for efficient heat dissipation; R_thj-case = 1.4 °C/W enables 15 A operation with minimal PCB copper area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STSPIN840 and BTS724G, the VND670SP uniquely combines dual high-side integration, external low-side gate drive, reverse battery tolerance, and analog diagnostic flags-making it optimal for cost-sensitive, high-current automotive actuators where discrete control and robustness are prioritized over digital configurability.

Availability

VND670SP is available at Aetrix Electronics and suitable for automotive seat control, window lift, sunshade actuation, and trunk lid systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for VND670SP 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 ISO/TS 16949-certified manufacturing.

The VND670SP belongs to ST's VIPower M0-3 family of ruggedized high-side drivers, engineered specifically for automotive body electronics demanding high reliability, transient immunity, and integrated protection in harsh 12 V environments.

FAQ

What is the maximum PWM frequency supported by the VND670SP?

The VND670SP supports PWM operation up to 10 kHz, as confirmed in the datasheet's "Features" section and Table 8. This frequency enables smooth torque control in brushed DC motors without audible noise or excessive switching losses. Operation above 10 kHz is not characterized and may compromise thermal performance or cause timing violations in dead-time control.

Does the VND670SP require external pull-up resistors on INA and INB pins?

No external pull-ups are required on INA and INB: these are CMOS-compatible 5 V logic inputs with defined thresholds (V_IL = 1.5 V, V_IH = 3.25 V) and hysteresis (0.5 V). However, unused DIAGA/ENA and DIAGB/ENB pins must be externally pulled high (via 10 kΩ) to ensure normal operation, per Table 2 in the datasheet.

How does the VND670SP protect against short-circuit conditions?

The VND670SP employs dual-layer protection: (1) per-channel current limiting (30–45 A threshold) that clamps output current during overload, and (2) thermal shutdown (150–200 °C) that latches off the affected half-bridge. Additionally, short-to-battery detection monitors external MOSFET saturation voltage (2.5–5.5 V) to disable gate drive before destructive energy buildup.

Can the VND670SP operate with a 5 V logic supply while powered from a 12 V battery?

Yes - the VND670SP accepts 5 V logic levels on INA, INB, DIAGA/ENA, DIAGB/ENB, and PWM pins regardless of V_CC (5.5–36 V), as verified in Tables 9 and 10. Its inputs are 5 V tolerant with clamp diodes (−1.0 to +8.0 V), enabling direct interfacing with 5 V MCUs without level shifters in automotive body control modules.