DRV8870DDA
LTB50-V, 3.6-A H-BRIDGE MOTOR DRIVER WITH CURRENT REGULATION
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DRV8870DDA
LTB50-V, 3.6-A H-BRIDGE MOTOR DRIVER WITH CURRENT REGULATION
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Technical Specifications
Parameters and characteristics for this part
| Specification | DRV8870DDA |
|---|---|
| Applications | Stepper Motors, General Purpose, DC Motors |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Interface | PWM |
| Motor Type - AC, DC | Brushed DC |
| Motor Type - Stepper | Unipolar |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Half Bridge (2) |
| Package / Case | 8-PowerSOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 8-SO PowerPad |
| Technology | NMOS |
| Voltage - Load [Max] | 45 V |
| Voltage - Load [Min] | 6.5 V |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 0 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 3.86 | |
| 10 | $ 2.54 | |||
| 25 | $ 2.19 | |||
| 100 | $ 1.81 | |||
| 250 | $ 1.62 | |||
| 500 | $ 1.50 | |||
| 1000 | $ 1.41 | |||
| Texas Instruments | TUBE | 1 | $ 2.40 | |
| 100 | $ 1.98 | |||
| 250 | $ 1.42 | |||
| 1000 | $ 1.07 | |||
Description
General part information
DRV8870 Series
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.
Documents
Technical documentation and resources