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)

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 Drivers with FETs

 
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
Pin/Package
Rating
Operating Temperature Range (C)
Approx. Price (US$)
DRV8834 DRV8835 DRV8836
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    
24HTSSOP
24VQFN    
12WSON     12WSON    
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85    
1.15 | 1ku     0.70 | 1ku     0.70 | 1ku    

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