Specifications
| Type | Description |
|---|---|
| Part Number | DRV8805 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | SOIC (20) 12.80 mm x 7.50 mm; HTSSOP (16) 5.00 mm x 4.40 mm |
| Component Type | Power_IC |
| Operating Supply Voltage Range | 8.2-60 V; recommended operating conditions |
| Channels | 4 protected low-side drivers; device feature description |
| Output Switch Type | Four NMOS FETs; low-side driver outputs with overcurrent protection |
| Stepper Interface | Step / direction interface; indexer logic for unipolar stepper motor control |
| Supported Step Modes | 2-phase full-step, 1-2 phase half-step, 1-phase wave drive |
| Continuous Output Current, SOIC Single Channel | 1.5 A; single channel on, TA=25°C, SOIC package |
| Continuous Output Current, SOIC Four Channels | 0.8 A; four channels on, TA=25°C, SOIC package |
| Continuous Output Current, HTSSOP Single Channel | 2 A; single channel on, TA=25°C, HTSSOP package |
| Continuous Output Current, HTSSOP Four Channels | 1 A; four channels on, TA=25°C, HTSSOP package |
| Power Supply Voltage Absolute Maximum | -0.3 to 65 V; over operating free-air temperature range |
| Output Voltage Absolute Maximum | -0.3 to 65 V; VOUTx, over operating free-air temperature range |
| Clamp Voltage Absolute Maximum | -0.3 to 65 V; VCLAMP, over operating free-air temperature range |
| Digital Input Pin Voltage Absolute Maximum | -0.5 to 7 V; over operating free-air temperature range |
| Digital Output Pin Voltage Absolute Maximum | -0.5 to 7 V; nHOME, nFAULT pins |
| Digital Output Current Absolute Maximum | 20 mA; nHOME, nFAULT pins |
| Peak Clamp Diode Current | 2 A; absolute maximum rating |
| DC or RMS Clamp Diode Current | 1 A; absolute maximum rating |
| Operating Junction Temperature | -40 to 150 °C; absolute maximum rating |
| Storage Temperature | -60 to 150 °C; absolute maximum rating |
| ESD Rating HBM | ±3000 V; human body model, ANSI/ESDA/JEDEC JS-001, all pins |
| ESD Rating CDM | ±1000 V; charged device model, JEDEC JESD22-C101, all pins |
| Output Clamp Voltage | 0-60 V; recommended operating conditions; VCLAMP supplies clamp diodes only |
| Junction-to-Ambient Thermal Resistance, SOIC | 67.7 °C/W; DW SOIC, 20 pins |
| Junction-to-Ambient Thermal Resistance, HTSSOP | 39.6 °C/W; PWP HTSSOP, 16 pins |
| Junction-to-Case Top Thermal Resistance, SOIC | 32.9 °C/W; DW SOIC, 20 pins |
| Junction-to-Case Top Thermal Resistance, HTSSOP | 24.6 °C/W; PWP HTSSOP, 16 pins |
| Junction-to-Board Thermal Resistance, SOIC | 35.4 °C/W; DW SOIC, 20 pins |
| Junction-to-Board Thermal Resistance, HTSSOP | 20.3 °C/W; PWP HTSSOP, 16 pins |
| VM Operating Supply Current | 1.6 typ, 2.1 max mA; VM=24 V, TA=25°C |
| VM Undervoltage Lockout Voltage | 8.2 V; VM rising, TA=25°C |
| Input Low Voltage | 0.6 typ, 0.7 max V; Schmitt trigger logic inputs with hysteresis, TA=25°C |
| Input High Voltage | 2 V min; Schmitt trigger logic inputs with hysteresis, TA=25°C |
| Input Hysteresis | 0.45 V typ; logic-level inputs, TA=25°C |
| Input Low Current | -20 to 20 µA; VIN=0 V, TA=25°C |
| Input High Current | 100 µA max; VIN=3.3 V, TA=25°C |
| Input Pulldown Resistance | 100 kΩ typ; logic-level inputs |
| nFAULT Output Low Voltage | 0.5 V max; IO=5 mA, open-drain output |
| nFAULT Output High Leakage Current | 1 µA max; VO=3.3 V, open-drain output |
| nHOME Output Low Voltage | 0.5 V max; IO=5 mA, open-drain output with weak internal pullup |
| nHOME Output High Voltage, Peak | 6.5 V max; IO=100 µA, VM=11-60 V, peak |
| nHOME Output High Voltage, 11-60 V Steady State | 3.3 min, 4.5 typ, 5.6 max V; IO=100 µA, VM=11-60 V |
| nHOME Output High Voltage, 8.2-11 V Steady State | 2.5 V min; IO=100 µA, VM=8.2-11 V |
| nHOME Output Source Current | 1 mA; VM=24 V |
| nHOME Output Sink Current | 5 mA; VM=24 V |
| FET On Resistance, TJ=25°C | 0.5 Ω typ; VM=24 V, IO=700 mA |
| FET On Resistance, TJ=85°C | 0.75 typ, 0.8 max Ω; VM=24 V, IO=700 mA |
| FET Off-State Leakage Current | -50 to 50 µA; low-side FETs |
| High-Side Diode Forward Voltage | 1.2 V typ; VM=24 V, IO=700 mA, TJ=25°C |
| High-Side Diode Off-State Leakage Current | -50 to 50 µA; VM=24 V, TJ=25°C |
| Output Rise Time | 50 typ, 300 max ns; VM=24 V, IO=700 mA, resistive load |
| Output Fall Time | 50 typ, 300 max ns; VM=24 V, IO=700 mA, resistive load |
| Overcurrent Protection Trip Level | 2.3 min, 3.8 max A; TA=25°C |
| Overcurrent Protection Deglitch Time | 3.5 µs typ; TA=25°C |
| Overcurrent Protection Retry Time | 1.2 ms typ; TA=25°C |
| Thermal Shutdown Temperature | 150 min, 160 typ, 180 max °C; die temperature, not production tested |
| Step Frequency | 250 kHz max; timing requirements over operating free-air temperature range |
| STEP High Pulse Duration | 1.9 µs min; timing requirements |
| STEP Low Pulse Duration | 1.9 µs min; timing requirements |
| DIR and SMx Setup Time to STEP Rising | 1 µs min; timing requirements |
| DIR and SMx Hold Time to STEP Rising | 1 µs min; timing requirements |
| Enable Time | 50 ns max; nENBL to output low |
| STEP to OUTx Propagation Delay Low-to-High | 500 ns max; timing requirements |
| STEP to OUTx Propagation Delay High-to-Low | 500 ns max; timing requirements |
| RESET Pulse Width | 20 µs min; timing requirements |
| Datasheet Status | request_only |
Product Overview
The DRV8805 is a Texas Instruments Power_Management IC for unipolar stepper motor drive functions. The device structure is based on four protected low-side drivers implemented with four NMOS FET output switches. Its indexer logic uses a step/direction interface and supports 2-phase full-step, 1-2 phase half-step, and 1-phase wave-drive modes.
Recommended supply operation is specified from 8.2 V to 60 V, with VM undervoltage lockout at 8.2 V when VM is rising. The output clamp range is 0-60 V, and VCLAMP supplies the clamp diodes only. Output timing includes a 250 kHz maximum step frequency, 1.9 µs minimum STEP high and low pulse durations, and 500 ns maximum STEP-to-OUTx propagation delays.
Package options include SOIC (20) at 12.80 mm x 7.50 mm and HTSSOP (16) at 5.00 mm x 4.40 mm. At TA=25°C, continuous output current is specified as 1.5 A with one SOIC channel on, 0.8 A with four SOIC channels on, 2 A with one HTSSOP channel on, and 1 A with four HTSSOP channels on.
Key Features
- 8.2-60 V recommended operating supply range
- Four protected low-side NMOS FET drivers
- Step/direction interface for unipolar stepper control
- 2-phase full-step, half-step, and wave-drive modes
- Up to 2 A continuous output current in HTSSOP
- 0-60 V output clamp voltage operating range
- 250 kHz maximum STEP input frequency
- Open-drain nFAULT output with 0.5 V low level
- Overcurrent protection with 3.5 µs typical deglitch time
- Thermal shutdown at 160°C typical die temperature
Typical Applications
- Unipolar stepper motor drives
- Step/direction motor control
- Low-side motor switching stages
- Four-channel inductive load control
- Full-step and half-step motion systems
- Wave-drive stepper control circuits
Procurement Notes
When requesting a quote for DRV8805, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of motor driver is the DRV8805?
The DRV8805 is a Texas Instruments unipolar stepper motor driver in the Power_Management category. It uses four protected low-side drivers with four NMOS FET output switches and an indexer based on a step/direction interface.
What supply voltage range does DRV8805 support?
The recommended operating supply voltage range is 8.2-60 V. The VM undervoltage lockout voltage is specified as 8.2 V when VM is rising at TA=25°C.
Which step modes are listed for the DRV8805?
The listed step modes are 2-phase full-step, 1-2 phase half-step, and 1-phase wave drive. These modes are associated with the device indexer and translator logic for unipolar stepper motor control.
What output current ratings apply to DRV8805 packages?
At TA=25°C, the SOIC package is specified for 1.5 A with one channel on and 0.8 A with four channels on. The HTSSOP package is specified for 2 A with one channel on and 1 A with four channels on.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 21, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.