DRV8432DKDR Complete Guide: 52V 14A Dual Full-Bridge Motor Driver Selection, Design-In, and Alternatives

What Is the DRV8432DKDR and Why Do Engineers Choose It?

The Texas Instruments DRV8432DKDR is a high-performance, integrated dual full-bridge PWM motor driver for DC motors, stepper motors, and other inductive loads. It operates from a load supply voltage of 0 V to 52.5 V and delivers up to 14 A continuous output current per full bridge (7 A per channel in dual full-bridge mode). Its integrated MOSFETs have an RDS(on) of 110 mΩ at TJ = 25°C, and the power stage achieves up to 97% efficiency. The device comes in a 36-pin HSSOP (PowerPAD) surface-mount package, operates from -40°C to +85°C, and is RoHS compliant. As of 2026-09-04, the DRV8432DKDR is in stock at XAIPART with 99,999 units available, priced from $12.50 for single units down to $7.90 at 1,000 units, with an MOQ of 1. Its lifecycle status is active.

The DRV8432 belongs to the motor driver category, a subset of power management ICs. It integrates four half-bridges (configurable as two full H-bridges) with low RDS(on) MOSFETs, reducing external component count and simplifying PCB layout compared to discrete H-bridge designs. Integrated protection circuitry includes overcurrent protection (OCP), overtemperature protection (OTP), undervoltage lockout (UVLO), and overvoltage protection (OVP). The device supports PWM control with frequencies up to 500 kHz and includes a sleep mode for low-power standby.

How Do You Select and Design In the DRV8432DKDR?

Start by confirming your system rails. The DRV8432DKDR requires a logic supply voltage of 10.8 V to 13.2 V (VDD) and a motor load supply of 0 V to 52.5 V (VM), which directly supports 12 V, 24 V, and 48 V motor systems. The absolute maximum operating supply voltage is 70 V, giving design margin for industrial transients. Digital inputs are compatible with 3.3 V and 5 V logic levels.

Configure the bridges according to your load. The four half-bridges can drive two brushed DC motors (one full bridge each) or a single bipolar stepper motor (one full bridge per winding) with PWM current regulation for precise torque and position control. The PWM frequency is programmable up to 500 kHz, enabling high-speed switching and smooth microstepping. The device uses a bootstrap-based gate drive architecture for the high-side N-channel MOSFETs, so external bootstrap capacitors are required on BST_A, BST_B, BST_C, and BST_D.

PCB layout determines success at these current levels. Keep high-current loops short and low-inductance, place bootstrap capacitors close to their respective pins, and decouple the logic supply with a 0.1 µF ceramic capacitor. The exposed PowerPAD on the 36-HSSOP package must be soldered to a copper plane (Pin 36 connects to the thermal pad, soldered to ground) with thermal vias underneath for adequate heat dissipation. Provide separate logic and power grounds as the device provides distinct GND pins for each.

Thermal design example: for a 24 V motor drawing 10 A, conduction loss per the verified application data is approximately 11 W (I²R), which is manageable with proper thermal design. Use the protection flag outputs (OCP, OTP, UVLO, OVP on pins 19–22) to feed fault status back to your microcontroller, and use the active-low SLEEP input (pin 18) to reduce quiescent current in standby.

What Are the Key Specifications of the DRV8432DKDR?

How Should You Wire the Critical Pins of the DRV8432DKDR?

The key functional pins are the four half-bridge outputs, bootstrap pins, logic inputs, fault flags, and supplies. The complete 36-pin table is on the DRV8432DKDR product page. Critical connections: VM (pin 4) is the motor supply; VDD (pin 12) is the logic supply (10.8–13.2 V); IN1–IN4 (pins 14–17) accept your PWM control signals; SLEEP (pin 18, active low) controls standby; and each BST pin (8–11) needs its bootstrap capacitor placed close to the pin. Digital inputs accept 3.3 V and 5 V logic levels.

What Are the Drop-In Alternatives to the DRV8432DKDR?

Based on verified database data, these TI alternatives exist for the DRV8432DKDR:

For a 24 V brushed DC motor needing more than 10 A, choose the DRV8432DKDR for its 14 A-per-bridge capability. For lower-current applications, the DRV8412DDW (6 A per bridge) may be more cost-effective. If you need higher current, the DRV8962DDV is pin-compatible with higher current capability [DATA_NEEDED: exact current rating of DRV8962DDV]. Note the DRV8432 is not AEC-Q100 qualified, so for strict automotive compliance, evaluate qualified parts [DATA_NEEDED: AEC-Q100 qualified equivalents].

What Is the Market Position and Supply Situation for the DRV8432DKDR?

The lifecycle status of the DRV8432DKDR is active, and XAIPART holds 99,999 units in stock as of 2026-09-04 with an MOQ of 1. Pricing tiers as of 2026-09-04: $12.50 at qty ≥ 1, $11.25 at qty ≥ 10, $9.80 at qty ≥ 100, $8.75 at qty ≥ 500, and $7.90 at qty ≥ 1000. As of 2026-08-21, major distributors such as DigiKey and Mouser also list the part as in stock with 'ships today' availability; for larger quantities, lead times may extend to 4–6 weeks depending on the distributor's inventory. [DATA_NEEDED: long-term lifecycle forecast and last-time-buy information from TI].

What Trends Should Buyers Watch for High-Power Motor Drivers?

Watch integration and efficiency. The DRV8432DKDR's up to 97% power-stage efficiency and integrated 110 mΩ MOSFETs reflect the industry shift toward integrated power stages that eliminate discrete H-bridge components. Its PWM capability up to 500 kHz supports the higher switching frequencies demanded for smoother current regulation and smaller passive components. Buyers should anchor decisions to verified specs: confirm the load voltage range (0–52.5 V) covers your rail including transients against the 70 V absolute maximum, verify current headroom against the 7 A per channel (14 A per bridge) rating, and check pin-compatible upgrade paths such as the DRV8962DDV for higher current or the DRV8262DDV for brushed DC designs. Stock is deep at 99,999 units on XAIPART, but price breaks reward volume — the unit price drops 37% from $12.50 to $7.90 at 1,000 units as of 2026-09-04.

Where Can You Buy the DRV8432DKDR?

Order the DRV8432DKDR on XAIPART with MOQ 1 and 99,999 units in stock as of 2026-09-04. For related parts, browse the motor drivers category or read more in our technical guides blog. The datasheet is available on the TI website at https://www.ti.com/lit/gpn/DRV8412 (DRV84x2 family datasheet).