DRV8870 3.6A Brushed DC Motor Driver (PWM Ctrl) | TI.com

DRV8870
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
3.6A Brushed DC Motor Driver (PWM Ctrl)

 

Recommended alternative parts

  • DRV8871  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   3.6A Brushed DC Motor Driver with Integrated Current Sensing (PWM Ctrl)
  • DRV8872  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   3.6A Brushed DC Motor Driver with Fault Reporting (PWM Ctrl)
  • DRV8876  -  Reduces BOM cost, board space and power consumption with integrated current sensing

Description

The DRV8870 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.

The DRV8870 device features integrated current regulation, based on the analog input VREF and the voltage on the ISEN pin, which is proportional to motor current through an external sense resistor. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.

The device is fully protected from faults and short circuits, including undervoltage (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.

Features

  • H-Bridge Motor Driver
    • Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
  • Wide 6.5-V to 45-V Operating Voltage
  • 565-mΩ Typical RDS(on) (HS + LS)
  • 3.6-A Peak Current Drive
  • PWM Control Interface
  • Integrated Current Regulation
  • Low-Power Sleep Mode
  • Small Package and Footprint
    • 8-Pin HSOP With PowerPAD™
    • 4.9 × 6.0 mm
  • Integrated Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Automatic Fault Recovery

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WEBENCH® Designer DRV8870

  Min   Max Range
Vin  V 6.50 to 45.00V
RMS Current  A ≤ 2A
Ambient Temp  °C -40 to 125°C

Parametrics

Compare all products in Brushed DC (BDC) motor drivers Email Download to Excel
Part number Order Number of full bridges Vs (Min) (V) Vs (Max) (V) 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
DRV8870 Order now 1     6.5     45     3.7     565     PWM     Hardware (GPIO)     Current Regulation     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)     0.81 | 1ku     Catalog    
DRV8801 Order now 3     8     38     2.8     830     PH/EN     Hardware (GPIO)     Current Sense Amplifier     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16)    
0.99 | 1ku     Catalog    
DRV8873 Order now 1     4.5     37     10     150     PWM
PH/EN
Independent 1/2-H PWM    
SPI
Hardware (GPIO)    
Integrated Current Sensing
Current Sense Amplifier
Open-Load Detection    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)     1.65 | 1ku     Catalog    
DRV8874 Order now 1     4.5     37     6     200     PWM
PH/EN
Independent 1/2-H PWM    
Hardware (GPIO)     Integrated Current Sensing
Current Sense Amplifier    
16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)     1.25 | 1ku     Catalog    
DRV8876 Order now 1     4.5     37     3.5     700     PWM
PH/EN
Independent 1/2-H PWM    
Hardware (GPIO)     Integrated Current Sensing
Current Sense Amplifier    
16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16VQFN: 9 mm2: 3 x 3 (VQFN | 16)    
0.70 | 1ku     Catalog    
DRV8876N Order now 1     4.5     37     3.5     700     PWM
PH/EN
Independent 1/2-H    
Hardware (GPIO)       16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)     0.65 | 1ku     Catalog