STMicroelectronics VN772KPTR-E

Overview

VN772KPTR-E 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, 125 mΩ total R_DS(on) per bridge side, 36 V max V_CC, and real-time open-load/overtemperature diagnostics - deployed in automotive seat/mirror actuators and industrial DC motor drives.

For engineers reviewing the VN772KPTR-E datasheet, VN772KPTR-E pinout, VN772KPTR-E application, or VN772KPTR-E equivalent, this page provides verified pin functions, thermal derating data, linear current limiting behavior, diagnostic flag timing, and validated alternatives for H-bridge replacement or functional upgrade paths.

Technical Context

The device implements dual independent high-side drivers with integrated thermal shutdown (trip at 150–200 °C) and linear current limiting, plus two fully protected low-side OMNIFET II switches featuring overvoltage clamping (V_demag = V_CC − 41 to −55 V), undervoltage lockout (3–5.5 V), and ESD protection (HBM 4–5 kV). All channels support open-load detection in both ON and OFF states via status pin feedback.

Its SO-28 package houses three monolithic chips: one dual high-side die and two discrete low-side dies, enabling full H-bridge operation with independent control of IN1/IN2 (high-side inputs), IN3/IN4 (low-side inputs), and shared DIAG/STATUS for fault reporting - with no external sense resistors required due to internal current sensing.

Key Specifications

Pinout & Package

SO-28 surface-mount package with exposed thermal pad (EP); 1.27 mm pitch, 17.9 mm × 7.5 mm body size; JEDEC MS-013AC compliant. Thermal resistance R_thj-case = 20 °C/W for both high- and low-side sections when mounted on ≥6 cm² copper area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VN772KPTR-E, STSPIN840 trades integrated power stages for motion control flexibility, while VNQ7E160AJTR-E sacrifices low-side integration for higher channel independence and simplified thermal partitioning - making VN772KPTR-E optimal for compact, self-contained DC motor H-bridge designs.

Availability

VN772KPTR-E is available at Aetrix Electronics and suitable for automotive seat actuation, industrial conveyor control, and medical infusion pump motor drives requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for VN772KPTR-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 broad manufacturing and qualification capabilities.

VN772KPTR-E belongs to ST's VIPower® smart power family, designed specifically for robust, integrated motor control in harsh automotive environments where reliability, diagnostics, and space-constrained packaging are critical.

FAQ

What is the maximum continuous current per channel?

The VN772KPTR-E features linear current limitation with a typical value of 9 A per channel under standard conditions (T_j = 25 °C, V_CC = 13 V). Actual sustained current depends on PCB copper area and ambient temperature - derating curves in Figure 24 show 6 A maximum at T_c = 100 °C with 6 cm² copper.

How does open-load detection work in OFF state?

In OFF state, the device applies a small test current through the channel and measures voltage at the drain. If the measured voltage exceeds 1.5–3.5 V (threshold varies with temperature), it indicates an open circuit. This detection activates within 1000 µs after turn-off and is reported via the open-drain STATUS pin.

Can VN772KPTR-E drive inductive loads without external flyback diodes?

Yes - each low-side switch integrates active overvoltage clamping (V_demag = V_CC − 41 to −55 V) and the high-side section includes built-in clamping circuits. These eliminate need for external freewheeling diodes in typical 24 V DC motor applications, reducing board area and component count.

Is the STATUS pin compatible with 3.3 V microcontrollers?

Yes - the open-drain STATUS pin operates with any pull-up voltage from 3.3 V to 5 V. Its low-level output voltage is ≤0.5 V at I_STAT = 1.6 mA, ensuring clean logic-low recognition by 3.3 V GPIOs. No level-shifting circuitry is required for direct interface.