DRV8436E 1.1A stepper motor with integrated current sense, 1/256 micro stepping, PH/EN and PWM interface | TIJ.co.jp

DRV8436E
この製品は開発中です。テストと製造工程が確定していません。この製品は、今後変更または中止される可能性があります。
1.1A stepper motor with integrated current sense, 1/256 micro stepping, PH/EN and PWM interface

 

Sample availability

PWP package is in preview. Preproduction samples are available (PDRV8436EPWPR and PDRV8436EPWPR).  Request now

概要

The DRV8436E/P, DRV8437E/P devices are dual H-bridge motor drivers for industrial applications. The devices can be used for driving two DC motors, or a bipolar stepper motor. The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges. The DRV8436E/P is capable of driving up to 1.5-A full scale or 1.1-A rms output current per H-bridge; and the DRV8437E/P is capable of driving up to 1.1-A full scale or 0.8-A rms output current per H-bridge (dependent on PCB design).

The devices use an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The devices use an internal PWM current regulation scheme selectable between smart tune, fast, slow and mixed decay options. Smart tune decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects.

The PH/EN (DRV8436E/DRV8437E) or PWM (DRV8436P/DRV8437P) pins provide a simple control interface. A low-power sleep mode is provided for very-low quiescent current standby using a dedicated nSLEEP pin. Device protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits and overtemperature. Fault conditions are indicated by the nFAULT pin.

特長

  • Dual H-bridge motor driver
    • One bipolar stepper motor
    • Dual brushed-DC motors
  • Integrated current sense functionality
    • No sense resistors required
    • ±7.5% Full-scale current accuracy
  • 4.5- to 48-V Operating supply voltage range
  • Multiple control interface options
    • PHASE/ENABLE
    • PWM
  • Smart tune decay technology, fixed slow and mixed decay options
  • Low RDS(ON):
    • 900 mΩ HS + LS at 24 V, 25°C (DRV8436E/P)
    • 1200 mΩ HS + LS at 24 V, 25°C (DRV8437E/P)
  • High Current Capacity Per Bridge
    • DRV8436E/P: 2.5-A peak, 1.5-A Full-Scale, 1.1-A rms
    • DRV8437E/P: 1.9-A peak, 1.1-A Full-Scale, 0.8-A rms
  • Configurable Off-Time PWM Chopping
    • 7, 16, 24 or 32 µs
  • Supports 1.8-V, 3.3-V, 5.0-V logic inputs
  • Low-current sleep mode (2 µA)
  • Small package and footprint
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)

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機能一覧

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Part number オーダー・オプション Number of full bridges Vs (Min) (V) Vs (Max) (V) Peak output current (A) Control mode Control interface Micro-stepping levels Features Package size: mm2:W x L (PKG) RDS(ON) (HS + LS) (mOhms) Approx. price (US$)
DRV8436E ご注文 2     4.5     45     2.5     PH/EN
PWM    
Hardware (GPIO)       Smart Tune
Integrated Current Sensing    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)     900      
DRV8436 ご注文 2     4.5     48     2.5     STEP/DIR     Hardware (GPIO)     256     Smart Tune
Integrated Current Sensing    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)     900      
DRV8824 ご注文 2     8.2     45     1.8     STEP/DIR     Hardware (GPIO)     32     Current Regulation     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
28VQFN: 25 mm2: 5 x 5 (VQFN | 28)    
1280     1.50 | 1ku    
DRV8880 ご注文 2     6.5     45     2.5     STEP/DIR     Hardware (GPIO)     16     Smart Tune
Current Regulation    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)    
630     1.57 | 1ku    
DRV8881 ご注文 2     6.5     45     2.5     PH/EN
PWM    
Hardware (GPIO)       Smart Tune
Current Regulation    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)    
630     1.53 | 1ku    
DRV8885 ご注文 2     8     37     2.3     STEP/DIR     Hardware (GPIO)     16     Integrated Current Sensing
Current Regulation    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)    
860     1.44 | 1ku    
DRV8886 ご注文 2     8     37     3     STEP/DIR     Hardware (GPIO)     16     Integrated Current Sensing
Current Regulation    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)    
550     1.51 | 1ku