STMicroelectronics VNH5019ATR-E

Overview

VNH5019ATR-E from STMicroelectronics is an AEC-Q100 qualified, fully integrated automotive H-bridge motor driver in MultiPowerSO-30™ package. It delivers 30 A continuous output current per leg, supports 3 V CMOS-compatible logic inputs, and enables PWM motor control up to 20 kHz. The device integrates dual high-side VIPower® M0 drivers and two low-side switches for bidirectional DC motor control in power seats, HVAC actuators, and throttle valves.

For engineers reviewing the VNH5019ATR-E datasheet, VNH5019ATR-E pinout, VNH5019ATR-E application, or VNH5019ATR-E equivalent, key selection criteria include its 18 mΩ typical R_DS(on) per leg, thermal shutdown with 150 °C trip point, cross-conduction protection, current sense output (K₀ = 4670–10110 A/A), and reverse polarity protection via external N-MOS driven by CP pin.

Technical Context

The VNH5019ATR-E implements a monolithic dual half-bridge architecture with electrically isolated lead-frames in MultiPowerSO-30™. Each half-bridge combines a VIPower® M0 high-side driver (12.0 mΩ typ @ 25 °C) and a low-side MOSFET (6.0 mΩ typ @ 25 °C), enabling independent control of INA/INB and ENA/DIAGA–ENB/DIAGB for forward/reverse/brake states.

Protection is hardware-based and autonomous: undervoltage (4.5–5.5 V) and overvoltage (24–30 V) shutdown on V_CC, high-side/low-side thermal shutdown (150–200 °C), dynamic cross-conduction current limit (2 A peak), and low-side overload detection (70–160 A). Faults are signaled via open-drain DIAG pins pulled low.

Key Specifications

Pinout & Package

Package: MultiPowerSO-30™ with three exposed heat slugs (VCC, OUTA, OUTB) for enhanced thermal performance in harsh automotive environments. Electrically isolated lead-frames enable high-power dissipation with low R_thj-case (1.7 °C/W HSD, 3.2 °C/W LSD).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DRV887x-Q1 and BTS71620, the VNH5019ATR-E uniquely combines AEC-Q100 qualification, integrated reverse-polarity support via CP pin, and factory-calibrated current sense ratios across full automotive temperature range-enabling faster system validation and reduced design risk in safety-critical motion control.

Availability

VNH5019ATR-E is available at Aetrix Electronics and suitable for automotive power seat systems, HVAC actuator modules, electronic throttle control units, and steering column adjust mechanisms requiring stable component supply across extended vehicle lifecycles.

Supply support for VNH5019ATR-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, with core expertise in power management, automotive ICs, and embedded processing.

The VNH5019ATR-E belongs to ST's VIPower® automotive motor driver product line, designed specifically for robust, high-current DC motor control in demanding vehicle subsystems where functional safety, thermal resilience, and integration density are critical.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The VNH5019ATR-E has a thermal shutdown threshold of 150 °C minimum for both high-side and low-side drivers. Continuous operation must maintain T_j below this value using appropriate PCB copper area and airflow. Thermal resistance junction-to-case is 1.7 °C/W (HSD) and 3.2 °C/W (LSD), enabling accurate thermal modeling per Figure 18 in the datasheet.

How does the current sense output scale with motor current?

The CS pin delivers a proportional current I_SENSE = I_OUT / K, where K varies with output current level: K₀ = 4670–10110 A/A at 3 A, K₁ = 6060–8330 A/A at 8 A, and K₂ = 6070–7810 A/A at 15 A. This nonlinearity is characterized and specified across -40 to 150 °C, allowing calibrated analog feedback without external gain compensation.

Can the VNH5019ATR-E drive a motor in single-ended (half-bridge) mode?

Yes - the device supports half-bridge configuration by connecting one OUTx terminal to the motor and the other to ground or V_CC, while disabling the unused half-bridge via ENx/DIAGx. Figure 14 in the datasheet shows explicit half-bridge wiring, and truth tables confirm independent control of each leg's high-side and low-side switches.

What protection features activate during a short-to-battery fault?

During short-to-battery (OUTx = V_BAT), the low-side overload detector triggers at 70–160 A, latching off the affected low-side switch. Simultaneously, high-side clamp voltage limits (43–54 V) and active V_CC clamping protect internal circuitry. Fault status is reported via the corresponding ENx/DIAGx pin pulled low, and recovery requires cycling ENx or resetting the device.