DRV8834 具有 32 步分度器或双刷直流电机驱动器的 2.2A 低压步进器(分度器或 PH/EN 控制器) | 德州仪器 TI.com.cn

DRV8834
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具有 32 步分度器或双刷直流电机驱动器的 2.2A 低压步进器(分度器或 PH/EN 控制器)

具有 32 步分度器或双刷直流电机驱动器的 2.2A 低压步进器(分度器或 PH/EN 控制器) - DRV8834
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描述

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 MOSFETs 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 can driving up to 1.5-A RMS (or DC) continuously, at 25°C with a VM supply of 5 V. The device 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 overcurrent protection, short-circuit protection, undervoltage 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).

特性

  • 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 to 10.8 V
  • Dynamic tBLANK and Mixed Decay Modes for
    Smooth Microstepping
  • PWM Winding Current Regulation and Limiting
  • Thermally Enhanced Surface-Mount Package

参数

与其它产品相比 步进电机驱动器 邮件 下载到电子表格中
Part number 立即下单 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 Micro-stepping levels Features Package size: mm2:W x L (PKG) Approx. price (US$)
DRV8834 立即下单 2     2.5     10.8     1.5     2     305     PH/EN
STEP/DIR    
Hardware (GPIO)     32     Current Regulation     24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
0.90 | 1ku    
DRV8833 立即下单 2     2.7     10.8     1.5     2     360     PWM     Hardware (GPIO)       Current Regulation     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
0.70 | 1ku    
DRV8833C 立即下单 2     2.7     10.8     0.7     1     1735     PWM     Hardware (GPIO)       Current Regulation     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16)    
0.60 | 1ku    
DRV8847 立即下单 2     2.7     18     1     2     1000     Independent 1/2-Bridge     Hardware (GPIO)
I2C    
  Current Regulation
Open-Load Detection    
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)    
0.65 | 1ku