DRV8848 2A Dual H-Bridge Motor Driver (PWM Control) | TI.com

DRV8848 (ACTIVE) 2A Dual H-Bridge Motor Driver (PWM Control)

2A Dual H-Bridge Motor Driver (PWM Control) - DRV8848
Datasheet
 

Recommended alternative parts

  • DRV8847  -  The DRV8847 has additional interface options available

Description

The DRV8848 provides a dual H-bridge motor driver for home appliances and other mechatronic applications. The device can be used to drive one or two DC motors, a bipolar stepper motor, or other loads. A simple PWM interface allows easy interfacing to controller circuits.

The output block of each H-bridge driver consists of N-channel and P-channel power MOSFETs configured as full H-bridges to drive the motor windings. Each H-bridge includes circuitry to regulate the winding current using a fixed off-time chopping scheme. The DRV8848 is capable of driving up to 2 A of current from each output or 4 A of current in parallel mode (with proper heat sinking, at 12 V and TA = 25°C).

A low-power sleep mode is provided, which shuts down internal circuitry to achieve very-low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin.

Internal protection functions are provided for UVLO, OCP, short-circuit protection, and overtemperature. Fault conditions are indicated by a nFAULT pin.

Features

  • Dual H-Bridge Motor Driver
    • Single/Dual Brushed DC
    • Stepper
  • PWM Control Interface
  • Optional Current Regulation With 20-µs Fixed Off-
    Time
  • High Output Current per H-Bridge
    • 2-A Maximum Driver Current at 12 V and
      TA = 25°C
    • Parallel Mode Available Capable of 4-A
      Maximum Driver Current at 12 V and
      TA = 25°C
  • 4- to 18-V Operating Supply Voltage Range
  • Low-Current 3-µA Sleep Mode
  • Thermally-Enhanced Surface Mount Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Fault Condition Indication Pin (nFAULT)

Parametrics

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Part number Order Number of full bridges Vs (Min) (V) Vs (Max) (V) Full-scale current (A) Peak output current (A) RDS(ON) (HS + LS) (mOhms) Control mode Control interface Features Package size: mm2:W x L (PKG) Approx. price (US$) Rating
DRV8848 Order now 2     4     18     1     2     900     PWM     Hardware (GPIO)     Current Regulation     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)     0.94 | 1ku     Catalog    
DRV8847 Order now 2     2.7     18     1     2     1000     PWM
Independent 1/2 Bridge    
Hardware (GPIO)
I2C    
Open-Load Detection
Current Regulation    
16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16)    
0.80 | 1ku     Catalog