DRV8842MPWPREP Equivalent & Substitute Parts

Part Overview

The DRV8842MPWPREP is an integrated bipolar motor driver from Texas Instruments designed for brushed DC and stepper motor applications. This Power MOSFET-based driver combines control and power stage functionality in a single 28-HTSSOP package, operating across a wide supply voltage range of 8.2V to 45V with 4.6A output current capability. The device is currently in active production status with 2213 units available in inventory. Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical constraints of the application.

Substiute Parts

DRV8842MPWPREP

Texas InstrumentsIn Stock: 2266DRV8842MPWPREP Datasheet

Current PartRFQ

DRV8874PWPR

Texas InstrumentsIn Stock: 65479DRV8874PWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DRV8842MPWPREP is determined by the following critical parameters:

Motor driver functionality requires matching support for bipolar stepper and brushed DC motor types. Both the main part and substitute must provide fully integrated control and power stage architecture. Output configuration, interface type, and semiconductor technology may differ based on application requirements, but the core motor control capability must remain equivalent.

Electrical compatibility is established through voltage supply range overlap and load voltage compatibility. The DRV8842MPWPREP operates at 8.2V to 45V supply with matching load voltage range. Substitute parts must support the intended operating voltage window of the application.

Output current rating must meet or exceed the application requirement. The DRV8842MPWPREP provides 4.6A output current; substitutes with higher current ratings maintain backward compatibility.

Package and mounting type consistency ensures PCB layout compatibility. The 28-PowerTSSOP surface mount package defines the physical footprint and thermal characteristics.

Operating temperature range, RoHS compliance, and MSL rating ensure reliability and regulatory alignment across production environments.

Parameter Comparison

Engineering Selection Recommendations

Both the DRV8842MPWPREP and DRV8874PWPR are active production devices from Texas Instruments with ROHS3 compliance and identical MSL ratings, ensuring equivalent regulatory and environmental qualification status.

The DRV8874PWPR provides higher output current (6A versus 4.6A) and is suitable for applications requiring increased motor drive capability. However, the DRV8874PWPR supply voltage range (0V to 5V) is significantly more restricted than the DRV8842MPWPREP (8.2V to 45V). Selection between these devices depends on the specific supply voltage and current requirements of the target application.

Package differences exist: the DRV8842MPWPREP uses a 28-pin package while the DRV8874PWPR uses a 16-pin package. PCB layout modifications are required when transitioning between these devices.

Interface differences are present: the DRV8842MPWPREP uses parallel control interface while the DRV8874PWPR uses PWM interface. Application firmware or control circuitry must be adapted accordingly.

Frequently Asked Questions (FAQ)

Q: Can the DRV8874PWPR directly replace the DRV8842MPWPREP on the same PCB?

A: No. The DRV8874PWPR uses a 16-pin PowerTSSOP package compared to the 28-pin package of the DRV8842MPWPREP. PCB layout redesign is required. Additionally, the control interface differs (PWM versus parallel), requiring firmware modifications.

Q: What is the primary voltage limitation when considering the DRV8874PWPR as a substitute?

A: The DRV8874PWPR supply voltage range is 0V to 5V, while the DRV8842MPWPREP operates at 8.2V to 45V. The DRV8874PWPR is suitable only for low-voltage applications within its specified range. Applications requiring supply voltages above 5V cannot use the DRV8874PWPR.

Q: Are both devices suitable for bipolar stepper motor applications?

A: Yes. Both the DRV8842MPWPREP and DRV8874PWPR support bipolar stepper motor control as fully integrated drivers with control and power stage functionality.

Q: What are the current rating differences between these devices?

A: The DRV8842MPWPREP provides 4.6A output current, while the DRV8874PWPR provides 6A. The DRV8874PWPR is suitable for applications requiring higher motor drive current within its voltage operating range.

Q: Do both devices have equivalent compliance certifications?

A: Yes. Both devices are ROHS3 compliant with MSL rating 3 (168 Hours), ensuring equivalent regulatory and environmental qualification status for production environments.

Q: What control interface differences exist between these devices?

A: The DRV8842MPWPREP uses parallel control interface for motor command input. The DRV8874PWPR uses PWM interface. Application control circuitry must be adapted to match the selected device interface type.