MC33888FB

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MC33888FB

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IC PWR SWITCH N-CHANNEL 64PQFP

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Especificações

Atributo Valor
Package Tray
ProductStatus Obsolete
SwitchType General Purpose
NumberofOutputs 12 (4 High Side, 8 Low Side)
OutputConfiguration High Side or Low Side
OutputType N-Channel
Interface SPI
Voltage-Load 6V ~ 27V
Voltage-Supply(Vcc/Vdd) 4.5V ~ 5.5V
RdsOn(Typ) 10mOhm, 40mOhm, 600mOhm
Features Watchdog Timer
FaultProtection Current Limiting (Fixed), Open Load Detect, Over Voltage
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
SupplierDevicePackage 64-PQFP (14x14)

Visão Geral

Description

The MC33888FB is an automotive-grade, single-channel motor-driver (H-bridge) that combines a high-side and low-side MOSFET pair to drive a DC motor from a 5–28 V supply. It provides robust protection and simple MCU interfacing: undervoltage lockout, overcurrent/short-circuit protection, overtemperature shutdown, current limit, and a fault/diagnostic output. Logic inputs (enable, direction/PWM) are CMOS/TTL-compatible for easy motor control, and the device supports PWM or DC drive. The package variant “FB” denotes a specific package/lead-frame option. This IC is well-suited for small DC motors, actuators, and pumps in automotive or rugged industrial applications, helping to reduce external components and simplify protection and fault handling in motor-control designs.

Equivalent

Common equivalents (dual H-bridge motor drivers with similar range and protections):
- TI DRV8833 (also DRV8830/DR8871 family)
- ST TB6612FNG
- ST L298N
- NXP MC33926
Note: exact features (voltage, current, protections) vary by part; verify specs for your application.

Features

Here are the typical features of the MC33888FB:
- Dual high/low-side switch (two H-bridge outputs) for DC motors and similar loads
- Independent IN1/IN2 control for each channel; two outputs OUT1/OUT2
- Built-in protection: undervoltage, overvoltage, overcurrent/short-circuit, and thermal shutdown
- Diagnostic output (DIAG/FAULT) for fault status reporting
- Enable/power-down or sleep mode control
- PWM capability for speed control and directional control (forward/reverse/brake/coast via input states)
- Internal freewheel diodes and fast/slow decay options for current control
- Automotive-grade robustness suitable for harsh environments
- Wide operating range with protection against transients and fault conditions
- Compact package suitable for PCB mounting
Note: exact current ratings, voltage range, and pin names can vary by revision; consult the datasheet for precise specifications.

Pinout

- Pin count: 16 pins (FB package variant)
- Function: Dual high-side/low-side motor driver (two H-bridges). Provides four outputs (OUT1–OUT4) to drive two DC motors (or one motor with two windings). Each bridge is controlled by two logic inputs (IN1/IN2 for Bridge A; IN3/IN4 for Bridge B) plus enable. Includes protection features such as current limiting, undervoltage/overcurrent/overtemperature protection, and a fault/diagnostic output. Power is supplied via VS/GND.

Manufacturer

- Manufacturer: NXP Semiconductors (the MC33888 family originated with Freescale Semiconductor; Freescale is now part of NXP).
- What kind of company: A Dutch multinational semiconductor company that designs and manufactures integrated circuits for automotive, industrial, consumer electronics, and related markets.

Application

MC33888FB is a protected high-side switch for DC loads used in automotive and general electronics. Typical application areas:
- Automotive body electronics: window regulators, seat motors, door locks, HVAC blower, wipers.
- Solenoids, actuators, pumps, and relays (latches, fuel/power pumps).
- Automotive and industrial lighting and other inductive loads.
- General DC motor, pump, and fan control in 5–28 V systems.
It features built‑in current limit and thermal protection, simplifying ECU/MCU drive and protection.

Package

MC33888FB is in a 16‑pin small-outline package (SOIC-16).

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