STMicroelectronics VN772K13TR

Overview

VN772K13TR from STMicroelectronics is a quad-channel smart power solid-state relay in SO-28 package, integrating two VIPower™ M0-3 high-side switches and two OMNIFET II low-side switches for complete H-bridge motor control. It delivers 9 A typical current limitation per channel, 120 mΩ on-resistance (per bridge side), 36 V max supply voltage, and integrated open-load/over-temperature diagnostics via open-drain status flag - used in bidirectional DC motor drives for industrial actuators and automotive seat/mirror systems.

For engineers reviewing the VN772K13TR datasheet, VN772K13TR pinout, VN772K13TR application, or VN772K13TR equivalent, key selection criteria include verified thermal shutdown behavior at 150–200 °C, linear current limiting across temperature, dual-channel diagnostic feedback timing (≤20 µs overload delay), and SO-28 PCB thermal impedance with 6 cm² copper heatsink.

Technical Context

The VN772K13TR implements a monolithic three-die architecture: one die hosts dual high-side switches with thermal shutdown and current limiter blocks; two separate dies implement OMNIFET II low-side switches featuring linear current limitation, overvoltage clamping (V_DEMAG = V_CC−41 V), and built-in ESD protection (4 kV HBM on inputs).

Its H-bridge configuration supports clockwise/anti-clockwise motor operation with synchronized status flag reporting for both high-side channels. Fault detection includes open-load (on/off-state), overtemperature (TTSD = 150–200 °C), and undervoltage (V_USD = 3–5.5 V) - all mapped to a single open-drain DIAGNOSTIC pin requiring external pull-up.

Key Specifications

Pinout & Package

Package: SO-28 (Small Outline, 28-pin, surface-mount). Thermal resistance R_thj-case = 20 °C/W for both high-side and low-side dies; requires ≥6 cm² PCB copper area for ambient thermal management per Figure 49.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-channel H-bridge driver applications.

Compared with STSPIN840 and TPS2H160-Q1, the VN772K13TR uniquely combines dual high-side + dual low-side in one SO-28 package with shared diagnostic reporting - making it the only option for space-constrained brushed DC H-bridge designs requiring embedded protection and minimal external components.

Availability

VN772K13TR is available at Aetrix Electronics and suitable for industrial actuator control, automotive seat/mirror adjustment, and medical pump motor drive requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for VN772K13TR 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, designing and manufacturing silicon solutions for automotive, industrial, and consumer markets since 1987.

The VN772K13TR belongs to ST's VIPower™ smart-power family, engineered specifically for robust, protected, and space-efficient motor interface applications in harsh electrical environments.

FAQ

What is the maximum continuous current per channel under forced-air cooling?

The VN772K13TR supports 9 A typical current limitation per channel, but continuous DC current depends on thermal design. With 6 cm² PCB copper and 1 m/s airflow, sustained 5 A per channel is achievable at 85 °C ambient - confirmed by thermal calculation in Section 4.2 and Figure 24 derating curve.

How does the DIAGNOSTIC pin distinguish between open-load and overtemperature faults?

The DIAGNOSTIC pin asserts low for ≥20 µs during overtemperature (T_j ≥ TTSD) and remains low until T_j drops to T_R = 135 °C. For open-load, it pulses low for ≤200 µs (on-state) or ≤1000 µs (off-state) - timing differentiation enables firmware-based root-cause identification without additional hardware.

Can VN772K13TR drive inductive loads above 36 V using external clamping?

No. The absolute maximum V_CC rating is 41 V, and internal clamping (V_CLAMP = 40–55 V) applies only to low-side switches during turn-off. Exceeding 36 V violates recommended operating conditions and risks permanent damage - external clamping cannot override internal voltage limits.

Is the SO-28 package RoHS-compliant and lead-free?

Yes. The VN772K13TR SO-28 package is RoHS-compliant and lead-free per STMicroelectronics' product change notice PCN 19-0125, with matte tin termination and JEDEC-standard reflow profile compatibility (peak 260 °C).