MPC17550EVEL - Dual H-Bridge Motor Driver IC | NXP Semiconductors
料号： MPC17550EVEL ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.95 | $4.95 |
| 10 | $4.46 | $44.60 |
| 100 | $3.96 | $396.00 |
| 500 | $3.57 | $1,785.00 |
| 1,000 | $3.17 | $3,170.00 |
MPC17550EVEL 概述
A brushed DC motor driver (also called an H-bridge) is a discrete or integrated power stage that uses four switches arranged in an H topology to reverse the polarity of voltage applied to a motor winding. Two H-bridges on one die enable independent bidirectional drive of two motors, or sequential phase drive of a bipolar stepper. Compared with discrete MOSFET half-bridges, an integrated dual H-bridge reduces PCB area, eliminates gate-drive timing concerns, and adds built-in protection such as undervoltage lockout, short-circuit shutdown, and thermal shutdown. This places the MPC17550EVEL within the broader hierarchy of motor driver IC -> motion driver -> power management IC -> semiconductor.
Key features include 1.0 A continuous RMS output current per H-bridge (3.8 A peak), ultra-low RDS(on) of typically 0.18 ohm per high-side and low-side FET at TA=25C, an integrated charge pump requiring a single 0.1 uF CP capacitor, and independent logic-level IN1/IN2 + EN pins per bridge. The IC includes cycle-by-cycle current limiting, thermal protection, and under-voltage lockout (UVLO) on VCC.
The device architecture pairs four N-channel MOSFETs per bridge with a switched-capacitor charge pump to generate a gate voltage above VCC, allowing 100% duty-cycle operation of the high-side FETs without bootstrap refresh. Logic inputs are 1.8V-5V CMOS-compatible, permitting direct connection to microcontrollers without level shifters. Internal dead-time generation prevents cross-conduction between half-bridges.
Typical applications include camera module autofocus / zoom (voice-coil motor drive), stepper motor drive in camera shutters and aperture actuators, small brushed DC gearmotor drive in consumer electronics, optical image stabilization actuator control, and low-power robotic actuators. The 20-pin HVQFN with exposed die pad enables direct PCB thermal dissipation in space-constrained modules.
When designing with this part, place the 0.1 uF charge-pump capacitor as close to the CP pin as possible and provide a low-impedance GND plane tied to the exposed pad. Verify thermal performance at the user's worst-case duty cycle, since 1 A continuous into 1 ohm load dissipates approximately 1 W per bridge - four-layer PCB with thermal vias under the EP is recommended.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes from the NXP MPC17550 datasheet that go beyond what a manufacturer PDF alone provides.
直接替换替代料： MPC17550EVEL ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MPC17550EVEL （相同外形与封装尺寸） ——差异在于 Number of Outputs, Package.
快速对比工具——选择替代料号进行并排对比：
MPC17550EPR2
✅ 直接替换📋 参考替代料（不在目录中）
MPC17550EVEL
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.17 / 个
查看数据手册 →MPC17529EPR2
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.15 / 个
查看数据手册 →MPC17550EVEL 最大额定值与电气特性
| 拓扑 | Dual H-bridge DC motor driver |
| 输出数量 | 2 H-bridges (4 half-bridges) |
| Motor Supply (VCC) | 2.0 V to 5.5 V |
| Continuous Output Current (per bridge) | 1.0 A RMS |
| Peak Output Current (per bridge) | 3.8 A |
| RDS(on) High-Side + Low-Side | 0.18 ohm typ at TA=25C |
| Logic Input Voltage | 1.8 V to 5 V CMOS-compatible |
| Charge Pump Capacitor | 0.1 uF ceramic (CP pin to VCC) |
| Under-Voltage Lockout (UVLO) | Yes (VCC monitor) |
| 热关断 | Yes |
| 限流 | Yes (cycle-by-cycle) |
| 工作温度 | -30 C to +85 C |
| 封装 | 20-pin HVQFN (EVEL) 5x5 mm with exposed pad |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (per JEDEC J-STD-020) |
| Lead-Free / RoHS | Lead-free, RoHS compliant per NXP product page |
MPC17550EVEL 引脚配置
| 引脚 1 | EN1 — Bridge A enable, active-high logic input |
| 引脚 2 | IN1A — Bridge A input 1 (PWM/direction) |
| 引脚 3 | IN2A — Bridge A input 2 (direction) |
| 引脚 4 | OUT_A1 — Bridge A output 1 (motor terminal A1) |
| 引脚 5 | OUT_A2 — Bridge A output 2 (motor terminal A2) |
| 引脚 6 | GND — Ground (also tie to exposed pad) |
| 引脚 7 | VCC — Motor supply 2.0 V to 5.5 V |
| 引脚 8 | CP — Charge-pump capacitor, 0.1 uF to VCC |
| 引脚 9 | NC — Not connected (per datasheet) |
| 引脚 10 | PGND — Power ground for bridge outputs |
| 引脚 11 | OUT_B2 — Bridge B output 2 (motor terminal B2) |
| 引脚 12 | OUT_B1 — Bridge B output 1 (motor terminal B1) |
| 引脚 13 | IN1B — Bridge B input 1 |
| 引脚 14 | IN2B — Bridge B input 2 |
| 引脚 15 | EN2 — Bridge B enable, active-high logic input |
| 引脚 16 | NC — Not connected (per datasheet) |
| 引脚 17 | NC — Not connected (per datasheet) |
| 引脚 18 | NC — Not connected (per datasheet) |
| 引脚 19 | NC — Not connected (per datasheet) |
| 引脚 20 | NC — Not connected (per datasheet) |
典型应用
MPC17550EVEL 适用于 7 应用s: Camera Lens Autofocus Voice-Coil Drive, Camera Shutter and Aperture Stepper Drive, Optical Image Stabilization Actuator, Small Brushed DC Gear-Motor Drive, Consumer and IoT Robotics Actuator Control, Portable Point-of-Sale (POS) Printer Paper Feed, Toy and Hobby Servo-Style Motor Drive.
Camera Lens Autofocus Voice-Coil Drive
The MPC17550EVEL fits camera lens voice-coil autofocus (VCM) actuators because it delivers 1 A continuous per bridge from a 2 V to 5.5 V supply, matching the typical 3.3 V rail of camera modules powered by Li-ion. With 0.18 ohm RDS(on) the part dissipates only ~90 mW at a 500 mA focus current, keeping the module cool enough for tight stacked-die camera assemblies. The two H-bridges let one IC drive focus (bridge A) and zoom (bridge B) simultaneously. A 0.1 uF ceramic on the CP pin and short PCB traces to the motor outputs minimize switching transients on the analog image sensor rail. The HVQFN-20 EPAD provides direct thermal coupling to the camera-module metal frame.
推荐
Camera Shutter and Aperture Stepper Drive
The MPC17550EVEL serves as a bipolar stepper driver for camera shutter blades and aperture mechanisms because each H-bridge can be commutated in full-step or half-step sequences under MCU control. Peak current capability of 3.8 A handles the inertia spike of shutter blade engagement, while 1 A continuous covers hold-position torque. The 1.8 V-5 V logic inputs interface directly to camera-system microcontrollers such as the NXP Kinetis or i.MX RT series. Built-in cycle-by-cycle current limiting protects the coils during stall. Operating temperature range of -30 C to +85 C suits indoor/outdoor camera deployments including security and automotive surround-view modules.
推荐
Optical Image Stabilization Actuator
For optical image stabilization (OIS) the MPC17550EVEL drives the VCM actuators that shift the lens in X and Y. The 0.18 ohm RDS(on) RDS(on_total) keeps current-loop distortion low for accurate lens-position control at 1 kHz bandwidth. The IC's small 5x5 mm HVQFN footprint fits inside the OIS housing alongside the gyro sensor. Fast PWM-switching with the integrated charge pump enables high-frequency torque-ripple correction without external discrete capacitors. Two integrated bridges let one IC drive both X and Y VCM coils from the same 2.8 V Li-ion rail, simplifying the BOM. Thermal shutdown at 150 C junction protects against coil-short fault conditions.
推荐
Small Brushed DC Gear-Motor Drive
The MPC17550EVEL drives small brushed DC gear-motors (typically 3 V to 5 V, 200 mA to 800 mA continuous) in consumer electronics such as toys, robotic cleaners, and personal-care devices. Up to two gear-motors can be driven bidirectionally from one IC, halving the BOM versus discrete H-bridges. The 1 A per-bridge continuous rating covers most small gear-motor loads with margin, while 3.8 A peak handles startup surge and stall transients. Under-voltage lockout protects Li-ion cells from over-discharge, extending battery cycle life. PWM frequency up to 200 kHz enables smooth speed control with low acoustic noise.
推荐
Consumer and IoT Robotics Actuator Control
The MPC17550EVEL fits compact robotics and IoT actuator control where size, weight, and battery life matter. Two bidirectional brushed motors (e.g., pan-tilt head, pump, valve actuator) are driven from a single IC at 2.0 V to 5.5 V, matching 2xAA, 2xAAA, or 1S Li-ion supplies. Low quiescent current and integrated UVLO preserve battery life in standby. Direct 1.8 V logic input compatibility with low-power MCUs (e.g., NXP Kinetis KL series) eliminates level shifters. Thermal performance of the HVQFN-20 EVEL with EPAD keeps the IC operating safely in enclosed plastic housings without forced cooling, when PCB thermal design follows NXP layout guidelines.
推荐
Portable Point-of-Sale (POS) Printer Paper Feed
The MPC17550EVEL drives the paper-feed DC motor and the cutter motor in portable POS terminals and receipt printers. Bridging two motors from one IC reduces part count for slim mobile printers. The part accepts the 3.0 V to 4.2 V range typical of a single Li-ion cell, with 0.18 ohm RDS(on) limiting heat rise during multi-receipt printing sessions. Cycle-by-cycle current limiting protects the motor windings during paper-jam stalls. The 20-pin HVQFN EVEL package fits the compact mainboard layout of a handheld POS device. Logic inputs can be tied directly to the host MCU GPIO without external interface logic.
推荐
Toy and Hobby Servo-Style Motor Drive
The MPC17550EVEL is also used in low-cost hobby servos and educational robotics kits because it integrates two H-bridges in one small package, halving the PCB area compared to two discrete drivers. Bidirectional control of two small DC motors (or one stepper) is achieved with simple IN1/IN2 logic per bridge, allowing entry-level microcontrollers like the Raspberry Pi Pico or Arduino Nano to command speed and direction via PWM. The 2 V minimum VCC allows operation from 2xAA batteries for classroom deployments. Internal thermal shutdown gives novices a margin of safety against wiring faults.
推荐
推荐产品汇总
工程参考数据： MPC17550EVEL ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MPC17550EPR2 | MPC17550EVEL | MPC17529EPR2 |
|---|---|---|---|---|
| Package | HVQFN-20 (EVEL) 5x5 mm | HVQFN-20 (EVEL) 5x5 mm - same | HVQFN-20 (EVEL) 5x5 mm - same | HVQFN-20 (EVEL) 5x5 mm - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Topology | Dual H-bridge | Dual H-bridge | Dual H-bridge | Dual H-bridge |
| Motor Supply Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V (assumed same VCC per datasheet family) |
| Logic Input Voltage | 1.8 V to 5 V CMOS | 1.8 V to 5 V CMOS | 1.8 V to 5 V CMOS | 1.8 V to 5 V CMOS |
| Integrated Charge Pump | Yes (0.1 uF CP cap) | Yes (0.1 uF CP cap) | Yes (0.1 uF CP cap) | Yes (0.1 uF CP cap assumed per family) |
| Thermal Shutdown | Yes | Yes | Yes | Yes |
关键差异点
- Dual H-bridge integration in 5x5 mm HVQFN-20 （对比 MPC17550EPR2)
- Higher peak current rating （对比 MPC17529EPR2)
- Camera-actuator optimized VCC range （对比 Generic dual H-bridge drivers)
设计说明
Estimated: at 1 A continuous per bridge into a 1 ohm load, each H-bridge dissipates roughly P = I^2 x R = 1 W (2 W total for both bridges at full load). With a junction-to-ambient thermal resistance of approximately 35 C/W on a 4-layer HVQFN-20 PCB with a central GND thermal via array under the exposed pad, junction temperature rises about 70 C above 25 C ambient. Provide at least 9 thermal vias (0.3 mm drill, 1 oz plating) under the EPAD tied to an inner GND plane. Designers should verify the datasheet thermal resistance figure and reduce output current if temperature rise exceeds design margins.
Place the 0.1 uF CP capacitor as close as possible to the CP pin (pin 8) with the shortest return to the VCC pin and a wide ground return to the EPAD. Use wide PCB traces for the OUT_A and OUT_B outputs (at least 20 mils for 1 A continuous) and a single solid PGND/GND pour connecting the EPAD and the PGND pin. Avoid routing logic input traces (IN1, IN2, EN) parallel to motor outputs to minimize logic-noise coupling. A bulk 10 uF + 0.1 uF decoupling pair at VCC is recommended per NXP layout guidelines.
Do not rely on the EN pin as a fast PWM input - use the IN1/IN2 inputs for PWM control and EN as a static enable, otherwise the charge pump may not have time to refresh and high-side drive can droop. Always tie all NC pins to GND or leave floating per the datasheet NC specification - do not connect NC to motor outputs. Verify that reverse-battery protection is provided externally if the part is exposed to possible reversed VCC polarity - the MPC17550EVEL is not rated for reverse-polarity on VCC.
Add a TVS diode such as a 5 V SMBJ on the VCC pin if the motor is connected to an inductive harness, since back-EMF from the motor can be injected back into VCC through OUT_A and OUT_B when the bridge switches. Use low-ESR ceramic capacitors for the CP capacitor; X7R or X5R dielectric is recommended over Y5V for stable charge-pump performance across temperature. Monitor VCC under-voltage lockout (UVLO) to avoid motor drive during low-battery conditions that may cause partial FET turn-on and excessive dissipation.
合规信息
Lead-free and RoHS compliant per NXP product page. AEC-Q100 automotive qualification is not claimed for the consumer-oriented MPC17550EVEL; design AEC-Q100 search criteria if targeting automotive.
