Overview
The DRV8874PWPR, produced by Texas Instruments, is an integrated H-bridge motor driver designed for driving brushed DC motors and other resistive and inductive loads. This device features an N-channel H-bridge output power stage, a charge pump, current sensing, and proportional output, along with comprehensive protection circuitry. It supports a wide operating supply voltage range of 4.5 to 37 volts, making it versatile for various applications. The DRV8874PWPR is particularly useful for driving one bidirectional brushed DC motor or two unidirectional brushed DC motors, and it also supports other load configurations.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Operating Supply Voltage | Range | 4.5 V to 37 V |
| On-Resistance (RDS(on)) | High-Side + Low-Side | 200 mΩ |
| Peak Output Current | 6 A | |
| Logic Input Voltage | 1.8 V, 3.3 V, 5 V | |
| Sleep Mode Current | <1 µA @ VVM = 24 V, TJ = 25°C | |
| Package Type | 16-Pin HTSSOP with Exposed Thermal Pad | |
| Control Modes | PH/EN, PWM H-bridge, Independent Half-Bridge | |
| Current Regulation | Cycle-by-cycle or fixed off time | |
| Protection Features | UVLO, CPUV, OCP, TSD, Automatic Fault Recovery |
Key Features
- Integrated current sensing and regulation with proportional current output (IPROPI)
- Selectable current regulation modes (IMODE): cycle-by-cycle or fixed off time
- Selectable input control modes (PMODE): PH/EN, PWM H-bridge, and independent half-bridge control
- Ultra low-power sleep mode with <1 µA current draw at VVM = 24 V, TJ = 25°C
- Spread spectrum clocking for low electromagnetic interference (EMI)
- Comprehensive protection features including undervoltage lockout (UVLO), charge pump undervoltage (CPUV), overcurrent protection (OCP), thermal shutdown (TSD), and automatic fault recovery
- Fault indicator pin (nFAULT) for fault condition indication
Applications
- Brushed DC motors
- Major and small home appliances
- Vacuum, humanoid, and toy robotics
- Printers and scanners
- Smart meters
- ATMs, currency counters, and EPOS systems
- Servo motors and actuators
Q & A
- What is the operating supply voltage range of the DRV8874PWPR?
The operating supply voltage range is from 4.5 V to 37 V.
- What is the peak output current capability of the DRV8874PWPR?
The peak output current capability is 6 A.
- What are the supported logic input voltages for the DRV8874PWPR?
The device supports 1.8 V, 3.3 V, and 5 V logic inputs.
- What is the sleep mode current draw of the DRV8874PWPR?
The sleep mode current draw is less than 1 µA at VVM = 24 V, TJ = 25°C.
- What types of control modes are supported by the DRV8874PWPR?
The device supports PH/EN, PWM H-bridge, and independent half-bridge control modes.
- What protection features are integrated into the DRV8874PWPR?
The device includes undervoltage lockout (UVLO), charge pump undervoltage (CPUV), overcurrent protection (OCP), thermal shutdown (TSD), and automatic fault recovery.
- How does the DRV8874PWPR handle fault conditions?
Fault conditions are indicated on the nFAULT pin, and the device features automatic fault recovery.
- What is the purpose of the IPROPI pin on the DRV8874PWPR?
The IPROPI pin provides an analog current output proportional to the load current, allowing for motor stall or load condition detection.
- Can the DRV8874PWPR drive multiple motors?
Yes, it can drive one bidirectional brushed DC motor or two unidirectional brushed DC motors.
- What is the package type of the DRV8874PWPR?
The device is packaged in a 16-Pin HTSSOP with an exposed thermal pad.
