Texas Instruments DRV8436PPWPR

Overview

DRV8436PPWPR from Texas Instruments is a dual H-bridge motor driver IC designed for precise bipolar stepper or dual brushed-DC motor control in industrial motion systems. It delivers 1.5-A full-scale and 1.1-A RMS output per bridge, operates from 4.5 V to 48 V, integrates current sensing with ±7.5% accuracy, and supports PWM interface control - enabling compact printer mechanisms and robotic joint actuators.

For engineers reviewing the DRV8436PPWPR datasheet, DRV8436PPWPR pinout, DRV8436PPWPR application, or DRV8436PPWPR equivalent, key selection factors include its HTSSOP-28 package, Smart Tune decay technology, integrated current sense (no external shunts), configurable off-time (7/16/24/32 µs), and protection features including OCP, UVLO, and thermal shutdown.

Technical Context

The DRV8436PPWPR implements two independent N-channel H-bridges with integrated charge pump, current-sense mirror architecture, and quad-level programmable decay control (Smart Tune, slow, mixed, fast). Its PWM interface accepts logic-level inputs (1.8 V–5.0 V) and enables bidirectional control of each bridge via BIN1/BIN2 signals, with brake functionality on high-high input.

Current regulation uses an off-time chopping scheme where VREFA/VREFB set full-scale current (IFS = VREF / 2.2 V/A), TOFF selects fixed off-time (7–32 µs), and ADECAY/BDECAY configure decay behavior per bridge. Protection includes VM UVLO (4.25 V rising), charge pump undervoltage detection, cycle-by-cycle overcurrent limiting (2.4-A peak), and thermal shutdown at 150°C.

Key Specifications

Pinout & Package

DRV8436PPWPR is housed in a thermally enhanced HTSSOP-28 (PWP) package measuring 9.7 mm × 4.4 mm with PowerPAD™ exposed thermal pad for efficient heat dissipation in motor drive applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual H-bridge motor driver applications.

Compared with DRV8436EPWPR, the DRV8436PPWPR offers simpler PWM-based control and identical thermal performance; versus TB67H420FTG, it trades microstepping and peak current for lower system cost, smaller size, and adaptive current regulation without external components.

Availability

DRV8436PPWPR is available at Aetrix Electronics and suitable for printers and scanners, factory automation systems, and IP network camera designs requiring stable component supply, long-term manufacturability, and automotive-grade reliability screening.

Supply support for DRV8436PPWPR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies with decades of motor control IP investment.

The DRV8436P product line targets cost-sensitive, space-constrained industrial and consumer motion systems requiring integrated current sensing, flexible decay control, and robust protection - eliminating discrete FET drivers and external sense resistors.

FAQ

What control interface does the DRV8436PPWPR use?

The DRV8436PPWPR uses a PWM control interface with BIN1 and BIN2 inputs to define forward, reverse, brake, and coast states for Bridge B. This differs from the PHASE/ENABLE interface of the DRV8436EPWPR variant. The DRV8436PPWPR requires no external phase generator and directly accepts standard microcontroller PWM outputs, simplifying firmware implementation in the DRV8436PPWPR-based design.

How does the integrated current sensing in DRV8436PPWPR eliminate external shunt resistors?

The DRV8436PPWPR uses an internal current mirror architecture that leverages the power MOSFETs' inherent current proportionality to sense motor current - removing the need for external shunt resistors. This reduces power loss, PCB area, and BOM cost. The DRV8436PPWPR achieves ±7.5% full-scale accuracy across temperature and supply voltage, with VREFA/VREFB setting trip level via IFS = VREF / 2.2 V/A.

What decay modes are supported by DRV8436PPWPR and how are they selected?

The DRV8436PPWPR supports Smart Tune Dynamic Decay, slow, mixed (30% fast), and fast decay modes per bridge, selected via quad-level ADECAY and BDECAY pins. Smart Tune automatically optimizes decay composition each PWM cycle to minimize ripple while preserving step response. The DRV8436PPWPR's decay configuration is fully independent between bridges, enabling asymmetric tuning for multi-motor systems.

What thermal performance can be expected from DRV8436PPWPR in HTSSOP-28 package?

In its HTSSOP-28 (PWP) package with PowerPAD™, the DRV8436PPWPR has R_θJA = 31.3°C/W and R_θJB = 11.5°C/W. With proper PCB copper area (≥4 cm² 2-oz thermal pad), the DRV8436PPWPR sustains 1.1-A RMS per bridge continuously at 125°C ambient. Thermal shutdown activates at 150°C junction temperature with 20°C hysteresis, ensuring safe recovery after overload events in the DRV8436PPWPR application.

Does DRV8436PPWPR support sleep mode and what is its quiescent current?

Yes, the DRV8436PPWPR supports a dedicated low-power sleep mode activated by pulling nSLEEP low. In this state, internal circuitry is shut down and VM supply current drops to 2 µA typical - enabling energy-efficient standby in battery-powered devices. Wake-up time from sleep to active output transition is 0.6–0.9 ms. This feature is fully implemented in the DRV8436PPWPR silicon and verified across temperature and voltage ranges.