MC33926PNB - 5-28V 5A H-Bridge DC Motor Driver | NXP
部品番号: MC33926PNB ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.34 | $6.34 |
| 10 | $5.72 | $57.20 |
| 100 | $5.1 | $510.00 |
| 500 | $4.55 | $2,275.00 |
| 1,000 | $4.05 | $4,050.00 |
MC33926PNB 概要
An H-Bridge motor driver is a power-integrated circuit that uses four switching elements arranged in an 'H' topology to drive a DC motor or solenoid bidirectionally from a single rail. Within the broader power management hierarchy, the MC33926 belongs to the motor driver / motion control IC family, itself a sub-category of power management semiconductors. The H-bridge topology enables forward, reverse, braking, and high-impedance (coast) states through complementary input logic, eliminating external relay networks.
Key features of the MC33926PNB include a wide 5V to 28V operating supply range, 5A continuous DC load current capability, integrated current sensing with analog feedback output, programmable slew-rate control via the SR pin, parallel logic interface with CMOS-compatible inputs, and comprehensive protection set including over-current shutdown, thermal warning and shutdown, under-voltage lockout, and cross-conduction prevention (dead-time insertion).
The architecture pairs low-RDS(on) N-channel power MOSFETs with a SMARTMOS charge pump and a precision current-sense op-amp. The current-sense output pin (FB) provides a ground-referenced analog voltage proportional to load current, enabling closed-loop torque control without external shunt resistors. The 8x8 mm PQFN-32 package exposes the die substrate through a central thermal pad, achieving a typical RθJA in the low 30s C/W range on a 4-layer JEDEC test board, which is essential for sustaining 5A in continuous throttle duty. The slew-rate select pin allows EMI tuning for conducted emissions compliance.
Typical applications include automotive electronic throttle bodies, body control modules, HVAC actuators, mirror and seat positioning motors, generic low-voltage brushed DC servo control, and small industrial valve actuators. The wide voltage range also makes it suitable for 12V/24V industrial battery-powered equipment.
When designing with the MC33926PNB, the primary trade-off is thermal dissipation at high current and high VIN: at 5A and 24V input switching 5V into a motor, average dissipation can exceed 2W, so a copper pour on the exposed pad is mandatory. For lower-current applications below 2A continuous, the smaller MC33931 family may offer a smaller-footprint drop-in.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: MC33926PNB — 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。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MC33926PNB （同一形状・フットプリント） — 相違点: Package, Protection Features, Topology.
クイック比較ツール — 並列比較する代替部品を選択:
MC33926PNBR2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC33931VW
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC33926AEFR2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC33887PFKR2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC33926PNB 最大定格＆電気的特性
| Motor Type | Brushed DC |
| トポロジー | H-Bridge (dual half-bridge) |
| 出力構成 | Half-Bridge (dual), H-Bridge capable |
| Supply Voltage Range | 5 V to 28 V |
| Continuous Output Current | 5 A |
| Peak Output Current | 8.6 A (PWM-limited) |
| インターフェース | Parallel (CMOS logic) |
| Current Sense Output | Yes (analog FB pin) |
| Slew Rate Control | Yes (selectable via SR pin) |
| 動作温度範囲 | -40 C to +125 C |
| パッケージ | 32-PQFN (8x8 mm) with exposed pad |
| 実装タイプ | Surface Mount |
| MSLレベル | 3 |
| Protection Features | Over-current, thermal shutdown, under-voltage lockout, cross-conduction prevention |
| RoHS ステータス | Compliant |
MC33926PNB ピン構成
| ピン 1 | GND — Logic ground reference |
| ピン 2 | IN1 — Logic input 1 (CMOS parallel control) |
| ピン 3 | IN2 — Logic input 2 (CMOS parallel control) |
| ピン 4 | EN — Enable (active high) |
| ピン 5 | SR — Slew-rate select (1=reduced dV/dt, 0=fast) |
| ピン 6 | FB — Current feedback (analog, ground-referenced) |
| ピン 7 | TW — Thermal warning flag (open-drain) |
| ピン 8 | VDD — Logic supply (5V) |
| ピン 9 | NC — Not connected (per datasheet) |
| ピン 10 | NC — Not connected (per datasheet) |
| ピン 11 | OUT1 — H-bridge output 1 (power) |
| ピン 12 | NC — Not connected (per datasheet) |
| ピン 13 | VPWR — Motor supply (5-28V) |
| ピン 14 | PGND — Power ground |
| ピン 15 | NC — Not connected (per datasheet) |
| ピン 16 | OUT2 — H-bridge output 2 (power) |
| ピン 17 | NC — Not connected (per datasheet) |
| ピン 18 | NC — Not connected (per datasheet) |
| ピン 19 | NC — Not connected (per datasheet) |
| ピン 20 | NC — Not connected (per datasheet) |
| ピン 21 | NC — Not connected (per datasheet) |
| ピン 22 | NC — Not connected (per datasheet) |
| ピン 23 | NC — Not connected (per datasheet) |
| ピン 24 | NC — Not connected (per datasheet) |
| ピン 25 | NC — Not connected (per datasheet) |
| ピン 26 | NC — Not connected (per datasheet) |
| ピン 27 | NC — Not connected (per datasheet) |
| ピン 28 | NC — Not connected (per datasheet) |
| ピン 29 | NC — Not connected (per datasheet) |
| ピン 30 | NC — Not connected (per datasheet) |
| ピン 31 | NC — Not connected (per datasheet) |
| ピン 32 | NC — Not connected (per datasheet) |
安全動作領域 (DC)
主な用途
MC33926PNB の用途: 6 件s: Automotive Electronic Throttle Body, HVAC Damper and Blend Door Actuators, Power Mirror and Seat Positioning Motors, Low-Voltage Brushed DC Servo Control, Small Industrial Valve and Solenoid Drivers, Robotics Actuator and Small DC Motor Control.
Automotive Electronic Throttle Body
The MC33926PNB is the canonical NXP H-bridge for electronic throttle body (ETB) control in drive-by-wire systems. Its 5V to 28V operating range directly accommodates 12V automotive rails with load-dump margin, while the integrated analog current feedback (FB pin) eliminates the need for an external shunt resistor, simplifying PCB layout. The 5A continuous rating exceeds typical ETB peak currents of 3-4A, providing thermal headroom for cold-start and stall conditions. Slew-rate select (SR) allows EMI tuning to meet CISPR 25 conducted emissions. The PQFN-32 exposed pad provides RθJA in the low 30s C/W on a 4-layer JEDEC board, enabling underhood mounting. Closed-loop torque control uses the FB output to an external ADC on the ECU microcontroller. The NZZMC SMARTMOS protection suite - over-current, thermal warning/shutdown, UVLO, and cross-conduction prevention - satisfies automotive functional safety requirements.
おすすめ
HVAC Damper and Blend Door Actuators
The MC33926PNB drives HVAC blend-door and mode-door actuators that move flaps controlling temperature and airflow distribution. At 5A continuous and 5-28V supply, it easily handles typical 12V actuators drawing 1-3A. The parallel CMOS interface connects directly to a body control module's GPIO pins, eliminating SPI overhead. Current feedback via FB enables stall detection - critical for end-of-travel jam protection - by monitoring the current spike when a door reaches its mechanical limit. Slew-rate control reduces acoustic noise from motor PWM harmonics. The compact PQFN-32 (8x8 mm) footprint fits actuator-mounted PCBs where space is constrained, and the wide temperature range (-40C to +125C) supports engine compartment mounting in some vehicle platforms.
おすすめ
Power Mirror and Seat Positioning Motors
Body electronics modules use PC336 to control power mirrors (fold, tilt, pan) and seat adjusters (forward/back, recline, height) that draw 1-3A typical per motor. The H-bridge topology drives each motor bidirectionally with a single IC, replacing discrete relay networks. Parallel logic inputs respond directly to body-controller GPIOs without SPI overhead, simplifying firmware. The 5-28V range covers 12V body systems. The slew-rate select pin lets designers tune EMI per subsystem - mirror motors need lower dV/dt for AM-band radio compliance, while seat motors can run faster. The PQFN-32 footprint supports the dense multi-channel body control modules where 4-8 motor drivers share a single PCB.
おすすめ
Low-Voltage Brushed DC Servo Control
Industrial brushed DC servo motors from 12V to 24V draw 2-5A continuous and benefit from the MC33926PNB's integrated current sensing and parallel interface. Position control loops use the FB pin to measure instantaneous load current and apply torque compensation. The 5-28V supply range handles 24V industrial battery systems and 12V solar/battery installations. Protection features (OCD, TSD, UVLO) make the part robust against industrial supply transients. Slew-rate control allows designers to balance EMI compliance against switching loss for motor PWM frequencies of 20-40 kHz. The exposed thermal pad enables sustained 5A operation on standard 4-layer FR4 with 1 sq inch of top-layer copper plus thermal vias.
おすすめ
Small Industrial Valve and Solenoid Drivers
Hydraulic and pneumatic proportional valves and bidirectional solenoids in industrial automation use the MC33926PNB as a compact driver. Bidirectional control of solenoid polarity enables proportional flow control, while the integrated current sensing (FB) provides real-time feedback to the controller. The 5-28V supply covers 24V industrial rails. Parallel logic interface responds to PLC-style digital outputs without protocol overhead. Internal flyback handling combined with the slew-rate select pin limits inductive kick transients; for highly inductive loads an external TVS is recommended. The exposed pad dissipates continuous solenoid-hold currents up to 5A reliably on industrial-grade PCBs.
おすすめ
Robotics Actuator and Small DC Motor Control
Mobile robots, educational robotics platforms, and small DC motor actuator boards use the MC33926PNB to drive brushed DC gear motors at 12-24V up to 5A. The integrated current sense enables current-mode torque limiting for safer human-robot interaction. The parallel logic interface works with simple microcontrollers (Arduino-class) without requiring SPI libraries. The 8x8 mm PQFN-32 footprint fits dense robotic actuator boards that often stack multiple drivers. Slew-rate select reduces PWM audible noise that would otherwise be distracting in home/office robot deployments. The wide 5-28V range supports both single-cell Li-ion (with boost) and direct 24V battery configurations.
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: MC33926PNB — 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 | MC33926PNBR2 | MC33931VW | MC33926AEFR2 | MC33887PFKR2 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 32-PQFN (8x8 mm) | 32-PQFN (8x8 mm) - same | 32-PQFN (different pinout) - same package | 32-PQFN (8x8 mm) - same | PQFN-32 (different pinout) - same package family |
| Supply Voltage | 5-28 V | 5-28 V | 5-28 V | 5-28 V | 5-28 V |
| Continuous Output Current | 5 A | 5 A | 3 A | 5 A | 3.5 A |
| Peak Output Current | 8.6 A | 8.6 A | 5 A | 8.6 A | 6 A |
| Interface | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS | SPI |
| Current Feedback | Yes (FB pin) | Yes (FB pin) | Yes (FB pin) | Yes (FB pin) | Yes (FB pin) |
| Slew-Rate Control | Yes (SR pin) | Yes (SR pin) | No | Yes (SR pin) | Yes |
主な差別化要因
- Higher continuous current rating in same PQFN-32 footprint （vs MC33931VW)
- Parallel logic interface (no SPI overhead) （vs MC33887PFKR2)
- Programmable slew-rate control for EMI tuning （vs MC33931VW)
設計ノート
At 5A continuous load and VIN=24V into a stalled rotor, the MC33926PNB can dissipate well above its SOA. The PQFN-32 package requires a copper pour of at least 1 sq inch on the top layer connected to the exposed pad (pin 33), plus an array of thermal vias (typically 0.3 mm drill, 1.0 mm pitch) to inner-layer copper to achieve the datasheet RθJA. Without this thermal management, the device will enter thermal shutdown at currents as low as 3A continuous at elevated ambient temperatures.
Place VPWR and PGND bypass capacitors as close to the IC as possible - a 100 nF ceramic directly across pins 13 and 14 plus a 10 uF bulk capacitor within 5 mm. Keep the OUT1/OUT2 power traces wide (at least 0.5 mm per ampere) and avoid routing logic traces (IN1, IN2, FB, SR) under the power area to prevent logic noise injection. Stitch PGND and GND with a single point connection near the IC.
Do not exceed 28V on VPWR, including load-dump transients - add an external TVS or Zener clamp rated at 33V minimum for automotive 12V applications. The FB output is referenced to GND (logic ground), not PGND; route it away from PGND returns to avoid ground-loop noise. The exposed pad must be soldered for production reliability; dry-pad joints cause immediate thermal failure under load. SR pin logic must be set before EN goes high.
コンプライアンス情報
RoHS and REACH compliant per NXP product page. AEC-Q100 qualification typical for the 33926 family targeting automotive applications - confirm specific date code qualification letter with NXP for production builds.
