DRV8844 (ACTIVE)

5A Brushed DC motor or Quad 1.75A Solenoid/Relay Driver with +/-30V split supply support (PWM Ctrl)

5A Brushed DC motor or Quad 1.75A Solenoid/Relay Driver with +/-30V split supply support (PWM Ctrl) - DRV8844
Datasheet
 

Description

The DRV8844 provides four individually controllable 1/2-H-bridge drivers. It can be used to drive two DC motors, one stepper motor, four solenoids, or other loads. The output driver channel for each channel consists of N-channel power MOSFET’s configured in a 1/2-H-bridge configuration.

The DRV8844 can supply up to 2.5-A peak or 1.75-A RMS output current per channel (with proper PCB heatsinking at 24 V and 25°C) per H-bridge.

Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split supplies, the logic inputs and nFAULT output are referenced to a separate floating ground pin.

Internal shutdown functions are provided for over current protection, short circuit protection, undervoltage lockout, and overtemperature.

The DRV8844 is available in a 28-pin HTSSOP package with PowerPAD (Eco-friendly: RoHS & no Sb/Br).

For all available packages, see the orderable addendum at the end of the data sheet.

Features

  • Quad 1/2-H-Bridge DC Motor Driver
    • Can Drive Four Solenoids, Two DC Motors, One Stepper Motor, or Other Loads
    • Full Individual Half Bridge Control
    • Low MOSFET On-Resistance
  • 2.5-A Maximum Drive Current at 24 V, 25°C
  • Floating Input Buffers Allow Dual (Bipolar) Supplies (up to ±30 V)
  • Built-In 3.3-V, 10-mA LDO Regulator
  • Industry Standard IN/IN Digital Control Interface
  • 8-V to 60-V Operating Supply Voltage Range
  • Outputs Can Be Connected in Parallel
  • Thermally Enhanced Surface Mount Package

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Parametrics Compare all products in Brushed DC Drivers with FETs

 
Vs (Min) (V)
Vs (Max) (V)
RMS Output Current (A)
Peak Output Current (A)
Number of Full Bridges
Control I/F
RDS(ON) (HS + LS) (mOhms)
Number of Half Bridges
Features
Rating
Operating Temperature Range (C)
Pin/Package
DRV8844 DRV8816
8    8   
60    38   
3.5    2   
5    2.8   
2     
Independent 1/2-H PWM    Independent 1/2-H PWM   
480    830   
4    2   
Independent 1/2-H PWM Control
Split-Rail Support   
Current Sense Amplifier
Independent 1/2-H PWM Control   
Catalog    Catalog   
-40 to 85    -40 to 85   
28HTSSOP    16HTSSOP   

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