NXP Semiconductors MC33899VWR2

Overview

MC33899VWR2 from NXP (formerly Freescale) is a programmable H-bridge power IC designed to drive bi-directional DC motors and solenoid actuators in automotive powertrain systems. It delivers up to 3.0 A continuous load current, supports PWM control up to 11 kHz, features SPI-configurable slew rate and current limits, and provides analog current feedback via CSNS pin for closed-loop torque/speed regulation in throttle or EGR valve applications.

For engineers reviewing the MC33899VWR2 datasheet, MC33899VWR2 pinout, MC33899VWR2 application, or MC33899VWR2 equivalent, this device is selected for high-reliability motor control where diagnostic reporting (open/short-circuit, over-temperature, under-voltage), thermal robustness (150°C junction), and programmable fault recovery are critical in harsh automotive environments.

Technical Context

The MC33899VWR2 integrates four N-channel MOSFETs in full H-bridge topology with internal charge pump enabling high-side drive across 6–26.5 V VIGNP. Its dual enable inputs (EN1/EN2) support three operational modes-sleep, standby, and run-with microamp-level quiescent current in sleep mode (145 μA).

SPI interface (up to 6.25 MHz) configures diagnostics, current limit thresholds (5.3–15.0 A low-side, 5.8–17.9 A high-side), slew timing (1–12.8 μs via RS resistor + SPI multiplier), and thermal warning/shutdown (132.5–147.5°C warn, 157.5–172.5°C shutdown). Fault reporting includes latched open-circuit, short-to-battery, short-to-ground, and die temperature status.

Key Specifications

Pinout & Package

MC33899VWR2 is housed in a 30-pin HSOP (Heat Sink Overmolded Package) with exposed thermal pad (Tab) for enhanced heat dissipation. Package dimensions comply with JEDEC MO-153, thermal resistance RθJC < 0.5°C/W enables high-power operation in constrained automotive layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STSPIN840 and TLE9201SG, the MC33899VWR2 offers balanced automotive qualification (AEC-Q100 Grade 1), comprehensive SPI-accessible diagnostics, and proven thermal resilience in powertrain environments - making it optimal for mid-power, SPI-centric motor control where cost, reliability, and diagnostic depth are prioritized over CAN or ultra-high current.

Availability

MC33899VWR2 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial actuator systems, and precision motor positioning applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MC33899VWR2 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

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in automotive power management and functional safety.

The MC33899VWR2 belongs to NXP's legacy automotive H-bridge portfolio, engineered specifically for demanding powertrain actuation - emphasizing robust fault handling, wide input voltage range, and SPI configurability in extreme thermal environments.

FAQ

What is the maximum continuous output current supported by the MC33899VWR2?

The MC33899VWR2 supports up to 3.0 A continuous output current at TA = 125°C, validated with RDS(ON) < 165 mΩ at VIGNP = 6.0 V and TJ ≤ 150°C. This rating assumes proper PCB thermal design using the exposed pad (RθJC < 0.5°C/W) and adequate heatsinking. Peak currents up to 10.0 A are supported for short durations under programmable current limit settings.

Does the MC33899VWR2 require external components for high-side gate drive?

No, the MC33899VWR2 integrates an internal charge pump circuit that generates sufficient gate drive voltage for its high-side N-channel MOSFETs across the full VIGNP range (6–26.5 V). An external 0.1 μF capacitor on the CRES pin serves as the charge pump reservoir - no external bootstrap diodes or capacitors are needed.

How does the SPI interface of the MC33899VWR2 report faults?

The MC33899VWR2 uses its 4-wire SPI interface (CS, SCLK, DI, DO) to read a latched fault register containing bits for open-circuit, short-to-VIGNP, short-to-GND, die temperature range (warn/shutdown), and VIGNP under-voltage. The register is updated on each CS rising edge and can be cleared via SPI write - enabling real-time diagnostic polling without interrupt overhead.

Can the MC33899VWR2 operate with a 3.3 V microcontroller logic interface?

Yes, the MC33899VWR2 supports 3.3 V logic interfacing via the VDDQ pin, which sets the output voltage level for DO and LSCMP signals. When VDDQ = 3.3 V, DO and LSCMP outputs swing between 0 V and ~2.8 V, ensuring TTL- and CMOS-compatible signaling with 3.3 V MCUs. Digital inputs (FWD, REV, PWM, etc.) accept VIH ≥ 2.0 V and VIL ≤ 0.8 V.

What is the purpose of the REDIS pin on the MC33899VWR2?

The REDIS pin on the MC33899VWR2 enables automatic re-enable of the low-side MOSFET after a current comparator trip. A capacitor (e.g., 2.2 nF) connected to REDIS creates a timed voltage ramp; once it reaches ~4.0 V, the low-side FET resumes conduction. This prevents lockout during transient overcurrents (e.g., motor startup) while maintaining protection against sustained faults.