DRV8436 DRV8436 | TIJ.co.jp

DRV8436 (開発中) DRV8436

 

Sample availability

PWP package is in preview. Preproduction samples are available (PDRV8436PWPR).  Request now

概要

The DRV8436/37 are stepper motor drivers for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8436 and DRV8437 are capable of driving up to 1.1-A rms and 0.8-A rms output current respectively (dependent on PCB design).

The DRV8436/37 use an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The DRV8436/37 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.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin. Protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, open load, and overtemperature. Fault conditions are indicated by the nFAULT pin.

特長

  • PWM microstepping stepper motor driver
    • Simple STEP/DIR interface
    • Up to 1/256 Microstepping indexer
  • Integrated current sense functionality
    • No sense resistors required
    • ±7.5% Full-scale current accuracy
  • Smart tune decay technology, Fixed slow, and mixed decay options
  • 4.5 to 48-V Operating supply voltage range
  • Low RDS(ON):
    • DRV8436: 900 mΩ HS + LS at 24 V, 25°C
    • DRV8437: 1200 mΩ HS + LS at 24 V, 25°C
  • High current capacity per bridge
    • DRV8436: 2.5 A peak, 1.5 A Full-Scale, 1.1 A rms
    • DRV8437: 1.9 A peak, 1.1 A Full-Scale, 0.8 A rms
  • Configurable off-time PWM chopping
    • 7-µs, 16-µs, 24-µs, 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)
    • Open load detection (OL)
    • 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) Full-scale current (A) Peak output current (A) RDS(ON) (HS + LS) (mOhms) Control mode Control interface Features Package size: mm2:W x L (PKG) Approx. price (US$) Rating
DRV8436 ご注文 2     4.5     48     1.5     2.5     900     STEP/DIR     Hardware (GPIO)     Smart Tune
Integrated Current Sensing    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)       Catalog    
DRV8436E ご注文 2     4.5     45     1.5     2.5     900     PWM, PH/EN     Hardware (GPIO)     Smart Tune, Integrated Current Sensing     24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)       Catalog    
DRV8824 ご注文 2     8.2     45     1.6     1.8     1280     STEP/DIR     Hardware (GPIO)     Current Regulation     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
28VQFN: 25 mm2: 5 x 5 (VQFN | 28)    
1.50 | 1ku     Catalog    
DRV8825 ご注文 2     8.2     45     2.5     3     400     STEP/DIR     Hardware (GPIO)     Current Regulation     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     1.60 | 1ku     Catalog    
DRV8880 ご注文 2     6.5     45     2     2.5     630     STEP/DIR     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)    
1.57 | 1ku     Catalog    
DRV8881 ご注文 2     6.5     45     2     2.5     630     PWM
PH/EN    
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)    
1.53 | 1ku     Catalog    
DRV8885 ご注文 2     8     37     1.5     2.3     860     STEP/DIR     Hardware (GPIO)     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)    
1.44 | 1ku     Catalog    
DRV8886 ご注文 2     8     37     2     3     550     STEP/DIR     Hardware (GPIO)     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)