2.2A Low Voltage Stepper w/ 32-step Indexer or Dual Brushed DC Motor Driver (Indexer or PH/EN Ctrl) - DRV8834

DRV8834 (ACTIVE)

2.2A Low Voltage Stepper w/ 32-step Indexer or Dual Brushed DC Motor Driver (Indexer or PH/EN Ctrl)

Recommended alternative parts

  • DRV8825  -  2.5A stepper motor driver with 1/32 microstepping
  • DRV8833  -  2A low voltage brushed or stepper motor driver
  • DRV8835  -  1.5A low voltage brushed or stepper motor driver

Description

The DRV8834 provides a flexible motor driver solution for toys, printers, cameras, and other mechatronic applications. The device has two H-bridge drivers, and is intended to drive a bipolar stepper motor or two DC motors.

The output driver block of each H-bridge consists of N-channel power MOSFET’s configured as an H-bridge to drive the motor windings. Each H-bridge includes circuitry to regulate or limit the winding current.

With proper PCB design, each H-bridge of the DRV8834 is capable of driving up to 1.5-A RMS (or DC) continuously, at 25°C with a VM supply of 5 V. It can support peak currents of up to 2.2 A per bridge. Current capability is reduced slightly at lower VM voltages.

Internal shutdown functions with a fault output pin are provided for over current protection, short circuit protection, under voltage lockout and overtemperature. A low-power sleep mode is also provided.

The DRV8834 is packaged in a 24-pin HTSSOP or VQFN package with PowerPAD (Eco-friendly: RoHS & no Sb/Br).

Features

  • Dual-H-Bridge Current-Control Motor Driver
    • Capable of Driving Two DC Motors or One Stepper Motor
  • Two Control Modes:
    • Built-In Indexer Logic With Simple STEP/DIRECTION Control and Up to
      1/32-Step Microstepping
    • PHASE/ENABLE Control, With the Ability to Drive External References
      for > 1/32-Step Microstepping
  • Output Current 1.5-A Continuous, 2.2-A Peak per H-Bridge
    (at VM = 5 V, 25°C)
  • Low RDS(ON): 305-mΩ HS + LS
    (at VM = 5 V, 25°C)
  • Wide Power Supply Voltage Range:
    2.5 V – 10.8 V
  • Dynamic tBLANK and Mixed Decay Modes for Smooth
    Microstepping
  • PWM Winding Current Regulation and Limiting
  • Thermally Enhanced Surface Mount Package

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Parametrics Compare all products in Stepper Driver

 
Vs (Min) (V)
Vs (Max) (V)
# of Full Bridges
RDS(ON) (HS + LS) (mOhms)
RMS Output Current (A)
Peak Output Current (A)
Current Regulation Levels
Control I/F
Additional Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
DRV8834 DRV8835 DRV8836
2.5     2     2    
10.8     11     7    
2     2     2    
305     305     305    
1.5     1.5     1.5    
2.2     1.5     1.5    
32     0     0    
Indexer
PH/EN    
PWM
PH/EN    
PWM
PH/EN    
1/32 Microstepping
Higher Microstepping with External Reference    
Dual Power Supplies
Outputs Can Be Paralleled for 3A Output    
Dedicated Sleep Pin
Outputs Can Be Paralleled for 3A Output    
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85    
24HTSSOP
24VQFN    
12WSON     12WSON    
1.15 | 1ku     0.70 | 1ku     0.70 | 1ku    

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