NXP Semiconductors MC33887VWR2

Overview

MC33887VWR2 from NXP Semiconductors is a monolithic 5.0 A H-bridge power IC with integrated load current feedback (1/375 ratio), active current limiting (5.2–7.8 A), and AEC-Q100 Grade 1 qualification for automotive use. It features TTL/CMOS-compatible logic inputs, 120 mΩ typical R_DS(on), and supports PWM switching up to 10 kHz for closed-loop DC motor control in throttle and EGR systems.

For engineers reviewing the MC33887VWR2 datasheet, MC33887VWR2 pinout, MC33887VWR2 application, or MC33887VWR2 equivalent, this device delivers verified current-sense feedback, fault reporting via open-drain FS pin, thermal shutdown at 175 °C, and dual disable inputs (D1 high-active, D2 low-active) enabling precise 3-state control in safety-critical motor drives.

Technical Context

The MC33887VWR2 implements an internal charge pump to drive high-side N-channel MOSFETs across its full 5.0–28 V operating range, eliminating external bootstrap circuitry. Its current-limiting architecture uses constant OFF-time PWM on low-side MOSFETs with 15–26 µs blanking time to distinguish transient inrush from true short-circuit events.

It integrates dual independent input control (IN1/IN2) for forward/reverse/freewheeling states, two complementary disable inputs (D1/D2) for deterministic 3-state output latching, and separate analog (AGND) and power (PGND) ground domains to maintain signal integrity of the 1/375 current feedback output (FB pin).

Key Specifications

Pinout & Package

MC33887VWR2 is packaged in HSOP20 (SOT397-2), a 20-terminal heatsink small-outline package (11 mm × 15.9 mm × 3.2 mm) with exposed thermal pad. Pin 1 is EN; pins 9–12 and tab are PGND; pins 4, 5, and 16 are V+; pins 6–7 and 14–15 are paralleled OUT1 and OUT2 outputs respectively.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DRV8876PWPR and VNH7040ASTR, the MC33887VWR2 uniquely combines AEC-Q100 Grade 1 qualification, analog 1/375 current feedback, and self-contained charge pump in HSOP20-enabling simpler, more robust closed-loop motor control without external sensing or bootstrap components.

Availability

MC33887VWR2 is available at Aetrix Electronics and suitable for electronic throttle control, exhaust gas recirculation, and turbo flap actuation requiring stable component supply across automotive production lifecycles.

Supply support for MC33887VWR2 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in automotive-grade power management ICs.

The MC33887VWR2 belongs to NXP's high-reliability motor driver product line, engineered specifically for AEC-Q100-compliant closed-loop DC motor control in safety-critical automotive subsystems such as powertrain and emissions control.

FAQ

What is the function of the FB pin on the MC33887VWR2?

The FB pin on the MC33887VWR2 provides a ground-referenced constant-current output equal to the high-side load current divided by 375 (e.g., 1.33 mA at 500 mA load). This analog feedback enables direct connection to a microcontroller's ADC input for real-time current monitoring, supporting closed-loop torque control and open-load detection without external sensing components. The MC33887VWR2's FB output is specified across its full operating temperature and voltage range.

Does the MC33887VWR2 require an external charge pump capacitor?

Yes, the MC33887VWR2 requires an external ceramic capacitor (typically 100 nF) connected to the CCP pin (Pin 17) to support its internal charge pump. This capacitor supplies gate drive voltage for the high-side N-channel MOSFETs, enabling full enhancement across the 5.0–28 V supply range without external bootstrap circuitry. The MC33887VWR2 datasheet specifies capacitor placement near the device and low-ESR characteristics to ensure stable high-side drive under PWM switching.

How does the MC33887VWR2 handle overtemperature conditions?

The MC33887VWR2 activates thermal shutdown at a junction temperature of 175 °C, forcing both H-bridge outputs into a latched 3-state condition and pulling the FS pin low. It includes 10 °C hysteresis, so normal operation resumes only after junction temperature falls below 165 °C. This behavior is fully characterized per AEC-Q100 Grade 1 requirements and applies regardless of input logic states. The MC33887VWR2's thermal protection is independent of the enable and disable inputs.

Can the MC33887VWR2 operate from a 36 V supply?

The MC33887VWR2 supports operation up to 40 V with reduced performance, but its full parametric specification applies only from 5.0 V to 28 V. At 36 V, the internal charge pump degrades significantly, causing high-side MOSFETs to operate in linear mode with increased V_DS and power dissipation. The MC33887VWR2 remains functional but requires careful thermal design and derating of continuous current capability below 5.0 A to maintain safe junction temperature.

What is the difference between D1 and D2 inputs on the MC33887VWR2?

D1 (Pin 18) is a high-active disable input: asserting logic high forces both OUT1 and OUT2 into high-impedance 3-state while keeping internal logic powered. D2 (Pin 13) is low-active: asserting logic low achieves identical 3-state output behavior. This dual-input architecture allows compatibility with controllers using either active-high or active-low disable signaling. Both D1 and D2 independently override IN1/IN2 states, and either can reset fault latch conditions. The MC33887VWR2 truth table confirms identical functional impact from either input.