MCZ33887EKR2 - 5A H-Bridge Driver w/ Load Current Feedback | NXP
部品番号: MCZ33887EKR2 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $8.92 | $8.92 |
| 10 | $7.96 | $79.60 |
| 100 | $6.92 | $692.00 |
| 500 | $5.97 | $2,985.00 |
| 1,000 | $5.34 | $5,340.00 |
MCZ33887EKR2 概要
An H-Bridge (also called a four-quadrant DC motor driver or full-bridge driver) is a power topology built from four switching elements that allows current to be driven through a load in either direction. It belongs to the broader motor-driver IC family, which itself sits within the power management IC category - devices that convert, regulate, and deliver power to downstream loads. Closed-loop current feedback is the key feature that elevates the MCZ33887EKR2 above simple half-bridge drivers, enabling precise torque control in DC motor applications such as throttle-by-wire.
Key differentiating features include built-in charge pump (only external capacitor needed), internal control logic for direction/coast/brake modes driven by two logic inputs, internal PWM current limiting via a programmable reference, and load-current feedback through a dedicated analog output pin proportional to motor current. The exposed thermal pad on the 54-SSOP package keeps junction temperature rise manageable even when dissipating the full I*I*R loss of high-current loads.
Architecturally, the part combines four DMOS power transistors, gate drivers, charge pump, current-sense shunt amplifier, and protection circuitry on a single power IC die. The integrated current sense amplifier outputs a voltage proportional to load current, eliminating the need for an external sense resistor and supporting closed-loop torque control without additional analog components.
Typical applications include DC motor control in throttle-by-wire systems, HVAC flap actuators, mirror adjusters, seat positioners, idle speed control, and similar 12 V body electronics applications. Industrial uses extend to small brushed DC gear motors and bidirectional solenoid valves. Automotive was the primary design target, given the 5-28 V supply and load-dump tolerant characteristics.
When using this part, ensure adequate copper area on the PCB for thermal management - the exposed pad must be soldered to a sufficient copper pour to handle the I^2R dissipation at high currents. The PWM frequency should be selected above the audible range (>20 kHz) for noise-sensitive applications, and the current-limit reference resistor should be sized based on the desired peak motor current.
This page synthesizes distributor pricing, NXP/Freescale generation family cross-references, and practical PCB layout notes not found in the standalone manufacturer datasheet, giving engineers a one-stop reference for H-Bridge selection.
ドロップイン代替品: MCZ33887EKR2 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
MCZ33996EKR2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MCZ33290EFR2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MCZ33887EKR2 最大定格＆電気的特性
| 機能 | H-Bridge motor driver with load current feedback |
| 出力構成 | Full H-Bridge (4 FETs) |
| 電源電圧 | 5 V to 28 V |
| Continuous Output Current | 5.0 A |
| On-State Resistance (RDS(on) per leg) | 120 mOhm (typical) |
| パッケージ / ケース | 54-SSOP (0.295 inch / 7.50 mm width) Exposed Pad |
| 実装タイプ | Surface Mount |
| Load Current Feedback | Yes (analog output proportional to load current) |
| Control Interface | Parallel logic (IN1, IN2 / PWM, Enable) |
| Charge Pump | Internal (external capacitor only) |
| 電流制限 | Programmable via external reference resistor |
| Load Type | DC motor, solenoid, resistive/inductive |
MCZ33887EKR2 54-ssop (0.295 inch / 7.50 mm width) exposed pad ピン配置ガイド
MCZ33887EKR2 (54-ssop (0.295 inch / 7.50 mm width) exposed pad パッケージ) のピン配置。 このパワーデバイスは、ゲート、ドレイン、ソース端子を備えています。非極性パッケージの場合、正確なピン1の向きとフットプリントの詳細については、メーカーのデータシートを参照してください。主な用途には、電源設計、モータ駆動、負荷スイッチングがあります。
詳細なピン配置データはありません: MCZ33887EKR2.
詳細は データシート をご参照ください。
主な用途
MCZ33887EKR2 の用途: 7 件s: Throttle-by-Wire DC Motor Control, HVAC Flap Actuator Drives, Power Mirror Adjusters, Seat Position and Recline Actuators, Idle Speed Control Valves, Industrial 24 V Solenoid and Valve Drivers, Brushed DC Gear Motor Control (Robotics / Drones).
Throttle-by-Wire DC Motor Control
The MCZ33887EKR2 is purpose-built for throttle-by-wire and other 12 V DC motor control applications where closed-loop torque management is mandatory. Its integrated load-current feedback analog output delivers a voltage proportional to the motor current, eliminating an external sense resistor and enabling the ECU to regulate torque via PWM in real time. With 5 A continuous capability and 120 mOhm RDS(on) per leg, the part handles small-throttle and idle-speed actuator motors across their full torque range. The 5-28 V supply window aligns with 12 V automotive cranking transients, while the 54-SSOP exposed-pad package keeps junction temperatures in spec even when dissipating 6 W continuous at full load.
おすすめ
HVAC Flap Actuator Drives
Automotive HVAC blend/mode/defrost door actuators typically use small brushed DC gear motors that draw 1-4 A and require bidirectional rotation. The MCZ33887EKR2's 5 A rating, full H-bridge topology, and current-feedback path fit these motor specs exactly; the integrated charge pump needs only one external pump capacitor, keeping the BOM small for the dozen-or-more actuators in a modern vehicle HVAC box. Designers benefit from logic-level direction and PWM inputs, letting a body control module (BCM) directly command speed and direction without external gate-drive components.
おすすめ
Power Mirror Adjusters
Power side mirrors use two small DC motors (fold and tilt) that need independent forward/reverse control in a compact footprint. The MCZ33887EKR2's small 54-SSOP package and surface-mount assembly allow mirror-board designs that sit behind the mirror glass while remaining thermally sound; the exposed pad dissipates the brief stall currents typical when the mirror reaches end-of-travel. Pulse-width current limiting protects the motor and actuator gears without external fuses, simplifying the mirror harness to just power, ground, and three logic lines.
おすすめ
Seat Position and Recline Actuators
Power seat actuators draw 2-5 A in modern vehicle architectures, and require full H-bridge drive for bidirectional rotation. The MCZ33887EKR2's 5 A continuous rating handles seat motor demands at 12 V automotive bus voltages, while the 120 mOhm RDS(on) keeps dissipation within the exposed-pad thermal envelope during 30-second motor on-times typical of seat adjustment. The integrated current feedback allows stall detection - critical for 'soft-stop' seat positioning and pinch detection - so the seat control ECU can shut the motor off when reaching the rail end without additional sense circuitry.
おすすめ
Idle Speed Control Valves
Early and mid-2000s engine idle-speed actuators and electronic throttle bodies use DC motor / PWM valve topologies well suited to the MCZ33887EKR2. The 5-28 V supply range tolerates cranking and load-dump transients, while the programmable current limit via an external reference resistor maps directly to the desired idle-air-flow set-point. The load-current feedback output is used by the engine ECU as a redundant airflow verification signal, providing safe operation against stuck or failing idle valves.
おすすめ
Industrial 24 V Solenoid and Valve Drivers
Although originally aimed at 12 V automotive, the MCZ33887EKR2's 28 V maximum supply also covers 24 V industrial solenoid and proportional valve control applications. The full H-bridge configuration supports bidirectional hydraulic and pneumatic proportional valves; the integrated current feedback implements closed-loop current regulation via PWM, which is essential for proportional valves that require precise current-to-position mapping. The exposed-pad package and integrated protection make the part drop-in suitable for factory-automation backplanes where repairability favors surface-mount ICs over discrete H-bridges.
おすすめ
Brushed DC Gear Motor Control (Robotics / Drones)
Small brushless DC gear motors in hobby robotics and entry-level drone gimbals benefit from the MCZ33887EKR2's compact H-bridge, surface-mount package, and low BOM count. With one external pump capacitor and a couple of ceramic bypass caps, a complete motor control block is implemented on a board one square centimeter - ideal for space-constrained robot joints. The 5 A capability covers up to mid-size gear motors, while the current-feedback path allows torque-aware control loops in robot controllers.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MCZ33887EKR2 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MCZ33996EKR2 | MCZ33290EFR2 |
|---|---|---|---|
| Brand | NXP Semiconductors (Freescale legacy) | NXP Semiconductors | NXP Semiconductors |
| Package | 54-SSOP-EP (7.50 mm) | 54-SSOP-EP (7.50 mm) - same | 54-SSOP family - same |
| Topology / Function | Single H-Bridge + load current feedback | 16-output / half-bridge switch | ISO 9141 interface (LIN/SPI) |
| Load Current Feedback | Yes (analog output) | No (rely on external sense) | Not applicable |
| Pin-to-Pin Compatible | Reference | No - different function, same SSOP-54 family | No - different ISO function, same package family |
主な差別化要因
- Integrated load current feedback eliminates external shunt resistor （vs MCZ33996EKR2)
- Single H-bridge complete with charge pump and gate drivers （vs MCZ33290EFR2)
- Surface-mount H-bridge in compact SSOP-54 exposed-pad （vs Discrete MOSFET H-bridge)
設計ノート
Estimated: At 5 A continuous output, conduction loss through two MOSFET legs of 120 mOhm each is approximately I^2 * 2 * RDS(on) = 5^2 * 0.24 = 6.0 W. The 54-SSOP-EP package's exposed thermal pad must be soldered to a copper pour large enough to keep junction temperature rise in spec - at minimum 1 sq inch of 2 oz copper on the top layer tied to the EP. If the application runs at 50% duty cycle or less, thermal average is roughly 3 W, which most thermal-only designs can handle without airflow. Designers should always verify against the datasheet's thermal resistance curves for the specific board stack-up.
Place the charge-pump flying capacitor as close as possible to the CP and CP+ pins using short, wide traces. The load-current feedback (FB) pin trace should be routed as a low-impedance analog trace away from switching nodes to avoid PWM-frequency noise coupling. Input supply decoupling requires a low-ESR bulk capacitor (>=47 uF) within 25 mm of the V+ pins plus a 100 nF ceramic bypass immediately at the IC. The exposed thermal pad should be connected to a copper pour that is also stitched to the top ground plane with multiple thermal vias (0.3 mm drill, 0.6 mm pad, 1 mm pitch) to maximize heat extraction.
Do not exceed 28 V at the supply pin including all transient conditions - automotive load dump can spike beyond 30 V if not externally clamped, so use a 28 V TVS or active clamp at the supply. The PWM input's logic thresholds assume 5 V CMOS levels; if driven from a 3.3 V MCU, confirm level-shifters or compatibility with the input thresholds in the datasheet. The current-limit reference resistor must be sized for the worst-case motor stall current, not nominal running current, otherwise protection will trip before stall is detected.
コンプライアンス情報
RoHS status inferred from NXP's general product compliance and current generation part numbering; reach/AEC-Q100/halogen/conflict-mineral specifics are not present in the verified web excerpts and are marked unknown. The MCZ33887EK generation spans automotive body-electronics designs; AEC-Q100 grade should be confirmed with NXP for any safety-critical application.
