DRV8432DKDR - 52V 14A Dual Full-Bridge Motor Driver | TI
部品番号: DRV8432DKDR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $9.8 | $980.00 |
| 500 | $8.75 | $4,375.00 |
| 1,000 | $7.9 | $7,900.00 |
DRV8432DKDR 概要
A motor driver is an integrated circuit that translates low-power control signals from a microcontroller or DSP into high-current, high-voltage signals capable of driving motors. The DRV8432 belongs to the motor driver category, which is a subset of power management ICs. It integrates four half-bridges (configurable as two full H-bridges) with low RDS(on) MOSFETs (110 mΩ at TJ = 25°C), achieving up to 97% power-stage efficiency. This integration reduces external component count and simplifies PCB layout compared to discrete H-bridge designs.
Key features include advanced protection circuitry: overcurrent protection (OCP), overtemperature protection (OTP), undervoltage lockout (UVLO), and overvoltage protection (OVP). The device supports PWM control with a wide frequency range, and its current regulation capability enables precise torque control in stepper applications. The DRV8432 also features a sleep mode for low-power standby, reducing quiescent current consumption.
Technically, the DRV8432 uses a bootstrap-based gate drive architecture for the high-side N-channel MOSFETs, requiring external bootstrap capacitors. The device provides separate logic and power grounds, and its digital inputs are compatible with 3.3 V and 5 V logic levels. The PWM frequency can be set up to 500 kHz, making it suitable for high-speed switching applications. The thermal pad on the HSSOP package must be soldered to a copper plane for adequate heat dissipation.
Typical applications include brushed DC motor drivers in robotics, industrial automation, and automotive systems; bipolar stepper motor drivers in 3D printers and CNC machines; and solenoid drivers in vending machines and industrial controls. The wide voltage range and high current capability make it versatile for various motor control systems.
When designing with the DRV8432, ensure proper PCB layout with low-inductance paths for high-current loops and adequate thermal vias under the thermal pad. The bootstrap capacitors should be placed close to the respective pins, and the logic supply should be decoupled with a 0.1 µF ceramic capacitor.
ドロップイン代替品: DRV8432DKDR — 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:
DRV8432DKD
📋 参考代替品（カタログ未掲載）
DRV8412DDW
📋 参考代替品（カタログ未掲載）
DRV8462DDV
📋 参考代替品（カタログ未掲載）
DRV8262DDV
📋 参考代替品（カタログ未掲載）
DRV8962DDV
📋 参考代替品（カタログ未掲載）
DRV8432DKDR 最大定格＆電気的特性
| 出力数 | 2 (dual full-bridge) |
| 出力構成 | 4 half-bridges |
| Voltage - Supply (logic) | 10.8 V ~ 13.2 V |
| Voltage - Load | 0 V ~ 52.5 V |
| Current - Output | 7 A per channel (14 A per bridge) |
| RDS(on) | 110 mΩ at TJ = 25°C |
| Power Stage Efficiency | Up to 97% |
| PWM Frequency | Up to 500 kHz |
| Operating Supply Voltage (Absolute Max) | 70 V |
| パッケージ | 36-HSSOP (PowerPAD) |
| 実装スタイル | Surface Mount |
| ピン数 | 36 |
| 動作温度範囲 | -40°C to +85°C |
| Protection Features | OCP, OTP, UVLO, OVP |
| RoHS ステータス | Compliant |
DRV8432DKDR ピン構成
| ピン 1 | GND — Power ground |
| ピン 2 | OUT1 — Half-bridge output 1 |
| ピン 3 | OUT2 — Half-bridge output 2 |
| ピン 4 | VM — Motor supply voltage |
| ピン 5 | OUT3 — Half-bridge output 3 |
| ピン 6 | OUT4 — Half-bridge output 4 |
| ピン 7 | GND — Power ground |
| ピン 8 | BST_A — Bootstrap capacitor for high-side FET A |
| ピン 9 | BST_B — Bootstrap capacitor for high-side FET B |
| ピン 10 | BST_C — Bootstrap capacitor for high-side FET C |
| ピン 11 | BST_D — Bootstrap capacitor for high-side FET D |
| ピン 12 | VDD — Logic supply voltage |
| ピン 13 | GND — Logic ground |
| ピン 14 | IN1 — Logic input for half-bridge 1 |
| ピン 15 | IN2 — Logic input for half-bridge 2 |
| ピン 16 | IN3 — Logic input for half-bridge 3 |
| ピン 17 | IN4 — Logic input for half-bridge 4 |
| ピン 18 | SLEEP — Sleep mode input (active low) |
| ピン 19 | OCP — Overcurrent protection flag output |
| ピン 20 | OTP — Overtemperature protection flag output |
| ピン 21 | UVLO — Undervoltage lockout flag output |
| ピン 22 | OVP — Overvoltage protection flag output |
| ピン 23 | GND — Power ground |
| ピン 24 | OUT1 — Half-bridge output 1 (duplicate) |
| ピン 25 | OUT2 — Half-bridge output 2 (duplicate) |
| ピン 26 | VM — Motor supply voltage (duplicate) |
| ピン 27 | OUT3 — Half-bridge output 3 (duplicate) |
| ピン 28 | OUT4 — Half-bridge output 4 (duplicate) |
| ピン 29 | GND — Power ground |
| ピン 30 | BST_A — Bootstrap capacitor for high-side FET A (duplicate) |
| ピン 31 | BST_B — Bootstrap capacitor for high-side FET B (duplicate) |
| ピン 32 | BST_C — Bootstrap capacitor for high-side FET C (duplicate) |
| ピン 33 | BST_D — Bootstrap capacitor for high-side FET D (duplicate) |
| ピン 34 | VDD — Logic supply voltage (duplicate) |
| ピン 35 | GND — Logic ground |
| ピン 36 | PAD — Exposed thermal pad (solder to ground plane) |
主な用途
DRV8432DKDR の用途: 6 件s: Brushed DC Motor Driver, Bipolar Stepper Motor Driver, Solenoid Driver, Robotics Actuator, Industrial Automation, Automotive Systems.
Brushed DC Motor Driver
The DRV8432DKDR drives brushed DC motors with up to 14 A per bridge, making it ideal for robotics, industrial automation, and automotive actuators. Its low RDS(on) (110 mΩ) minimizes power loss, and the wide voltage range (0-52.5 V) supports 12 V, 24 V, and 48 V systems. The integrated protection features (OCP, OTP, UVLO) ensure reliable operation in harsh environments. PWM control up to 500 kHz allows precise speed regulation. For a 24 V motor drawing 10 A, the driver dissipates only 11 W (I²R), which is manageable with proper thermal design.
おすすめ
Bipolar Stepper Motor Driver
The DRV8432DKDR can be configured as a dual full-bridge driver for a single bipolar stepper motor, providing current regulation for precise positioning. It supports up to 14 A per bridge, enabling high-torque stepper motors in 3D printers, CNC machines, and textile equipment. The PWM current regulation ensures smooth microstepping, and the wide voltage range accommodates various motor ratings. The device's thermal pad must be connected to a heatsink for continuous operation at high currents. With a 48 V stepper motor, the driver can achieve high torque while maintaining efficiency.
おすすめ
Solenoid Driver
The DRV8432DKDR can drive solenoids in industrial controls, vending machines, and automotive systems. Its high current capability (up to 14 A) and voltage range (up to 52.5 V) make it suitable for large solenoids. The integrated flyback diodes (via body diodes of MOSFETs) protect the driver from inductive kickback. PWM control allows adjustable holding current, reducing power consumption. The device's protection features prevent damage from overcurrent and overtemperature. For a 24 V solenoid with 5 A holding current, the driver can efficiently regulate the current.
おすすめ
Robotics Actuator
In robotics, the DRV8432DKDR drives DC motors and stepper motors for joint actuation and locomotion. Its high current capability supports powerful actuators, and the wide voltage range allows operation from various battery configurations. The device's small footprint (36-HSSOP) saves PCB space, and the integrated protection features enhance system reliability. PWM control enables precise speed and torque control, essential for robotic movements. For a robot arm with a 12 V motor drawing 8 A, the driver can handle the load with adequate cooling.
おすすめ
Industrial Automation
The DRV8432DKDR is used in industrial automation for conveyor belts, pumps, and valve control. Its robust protection features (OCP, OTP, UVLO) ensure reliable operation in factory environments. The wide voltage range (0-52.5 V) accommodates various industrial supply rails, and the high current capability drives large motors. The device's efficiency (up to 97%) reduces energy consumption and heat generation. For a 48 V conveyor motor drawing 12 A, the driver can operate continuously with proper heatsinking.
おすすめ
Automotive Systems
The DRV8432DKDR is suitable for automotive applications such as power windows, seat adjusters, and cooling fans. Its wide voltage range (up to 52.5 V) handles load dumps and transients, and the protection features prevent damage from short circuits. The device operates over -40°C to +85°C, meeting automotive temperature requirements. For a 12 V automotive fan motor drawing 10 A, the driver can efficiently control the speed. Note that the DRV8432 is not AEC-Q100 qualified, so for strict automotive compliance, consider the DRV8432DKD or other qualified parts.
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: DRV8432DKDR — 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 | DRV8432DKD | DRV8412DDW | DRV8462DDV | DRV8262DDV | DRV8962DDV |
|---|---|---|---|---|---|---|
| Package | 36-HSSOP | 36-HSSOP | 36-HSSOP | 36-HSSOP | 36-HSSOP | 36-HSSOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
主な差別化要因
- Higher output current (14 A per bridge) compared to DRV8412DDW （vs DRV8412DDW)
- Wide load voltage range (0-52.5 V) supports 48V systems （vs DRV8412DDW)
- Integrated protection features (OCP, OTP, UVLO, OVP) enhance reliability （vs DRV8412DDW)
設計ノート
The DRV8432DKDR can dissipate significant power at high currents. For example, at 14 A per bridge with RDS(on) of 110 mΩ, each bridge dissipates approximately 21.6 W (I²R). The 36-HSSOP package has a thermal pad that must be soldered to a large copper area on the PCB. Use multiple thermal vias to connect the pad to inner and bottom layers for effective heat spreading. For continuous operation above 10 A, consider adding a heatsink or forced airflow.
Place bootstrap capacitors (typically 0.1 µF) as close as possible to the BST and OUT pins to minimize loop inductance. Use low-ESR ceramic capacitors for the logic supply (VDD) and motor supply (VM) decoupling. The high-current paths (VM, OUT1-4, GND) should be wide and short to reduce parasitic inductance and resistance. Separate power ground and logic ground, connecting them at a single point near the thermal pad.
Do not exceed the absolute maximum supply voltage of 70 V on VM. Ensure the logic supply (VDD) is within 10.8-13.2 V; applying higher voltage can damage the device. The sleep pin (SLEEP) must be pulled high for normal operation; leaving it floating may cause unintended shutdown. Also, ensure the OCP, OTP, UVLO, and OVP flag pins are monitored by the microcontroller to handle fault conditions promptly.
コンプライアンス情報
RoHS compliant per TI product page. Not AEC-Q100 qualified.
