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Texas Instruments DRV8704DCP
- Part No.:
- DRV8704DCP
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 38-PowerTFSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8704DCP.pdf
- Description:
- IC MOTOR DRIVER 0V-5.3V 38HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:380
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Product details
Overview
DRV8704DCP from Texas Instruments is a dual brushed DC motor gate driver IC that controls external N-channel MOSFETs in two independent H-bridge configurations, operates from 8.0 V to 52 V, supports 100% PWM duty cycle, integrates programmable current regulation with adaptive blanking time, and delivers up to 200-mA peak gate source/400-mA sink current for industrial motion control in automatic teller machines and factory robotics.
For engineers reviewing the DRV8704DCP datasheet, DRV8704DCP pinout, DRV8704DCP application, or DRV8704DCP equivalent, this page provides verified technical context, confirmed SPI-configurable decay modes (auto-mixed, slow, fast, adjustable mixed), validated thermal shutdown (150 °C), confirmed 38-pin HTSSOP PowerPAD™ package with exposed thermal pad, and real-world current sense amplifier gain options (5–40 V/V).
Technical Context
The DRV8704DCP implements dual independent PWM-controlled H-bridge gate drivers with integrated current regulation using fixed-off-time chopping, programmable blanking time (500 ns–5.14 µs), and four selectable decay modes - including auto-mixed decay that dynamically switches between fast and slow decay based on real-time current sampling after blanking. Its SPI interface configures torque scaling (256-step DAC), gate drive strength (4 levels), and protection thresholds.
Each bridge features dedicated high-side and low-side gate drive outputs (A1HS/A1LS/A2HS/A2LS/B1HS/B1LS/B2HS/B2LS), dual current sense inputs per bridge (AISENP/AISENN, BISENP/BISENN), and analog fault detection with digital reporting via nFAULT pin and SPI register bits. Internal charge pump (VCP) enables high-side N-MOSFET drive without external bootstrap components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 8.0 V to 52 V VM - supports wide-input industrial DC bus systems without external regulators |
| Gate Drive Current | 50–200 mA source / 100–400 mA sink - configurable per bridge to match external MOSFET gate charge and switching speed requirements |
| Current Sense Gain | 5, 10, 20, or 40 V/V - selects sensitivity for 10–100 mΩ sense resistors while maintaining <4 mV offset error |
| Thermal Shutdown | 150 °C TJ with 20 °C hysteresis - prevents latch-up during overload or poor heatsinking in enclosed enclosures |
| Sleep Current | 65 μA at 24 V - enables ultra-low-power standby in battery-backed or energy-sensitive applications |
| PWM Frequency Support | Up to 500 kHz - allows high-resolution torque control and audible-noise suppression in precision motion systems |
| Dead Time | 410–880 ns (digital + analog enforcement) - guarantees shoot-through prevention across temperature and process variation |
Pinout & Package
DRV8704DCP is housed in a thermally enhanced 38-pin HTSSOP (PowerPAD™) package measuring 9.70 mm × 4.40 mm with an exposed thermal pad (PPAD) for direct PCB copper thermal coupling. The package is RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM (Pin 4) | Motor power supply input | Primary high-voltage rail (8–52 V); requires local 0.1-μF ceramic + 100-μF electrolytic bypassing |
| A1HS (Pin 36), A1LS (Pin 35), A2HS (Pin 31), A2LS (Pin 32) | Bridge A gate drive outputs | Direct drive signals for external N-MOSFETs in first H-bridge; each pair controls one motor winding |
| B1HS (Pin 27), B1LS (Pin 26), B2HS (Pin 22), B2LS (Pin 23) | Bridge B gate drive outputs | Direct drive signals for external N-MOSFETs in second H-bridge; enables dual independent motor control |
| AISENP/AISENN (Pins 34/33), BISENP/BISENN (Pins 25/24) | Differential current sense inputs | Accept voltage drop across shunt resistors; support ±600 mV input range with programmable gain |
| nFAULT (Pin 18) | Open-drain fault indicator | Active-low signal asserts on UVLO, OCP, TSD, or gate fault; requires external pull-up for system-level interrupt |
| SLEEPn (Pin 8) | Low-power mode enable | Logic-high enables operation; logic-low reduces quiescent current to 65 μA and disables all gate outputs |
| SCLK/SDATI/SDATO/SCS (Pins 14/15/17/16) | SPI serial interface | 4-wire full-duplex interface (10 MHz max) for configuring torque, decay mode, gate drive, and reading fault status |
Key Features
| Feature | Design Value |
|---|---|
| Auto-mixed decay mode | Real-time current sampling after blanking time triggers dynamic switch from fast to slow decay - eliminates manual tuning and improves torque linearity across speed ranges |
| Programmable gate drive strength | Four discrete source/sink current levels (50/100/150/200 mA source; 100/150/200/400 mA sink) - optimizes MOSFET switching loss vs. EMI trade-off per FET selection |
| Integrated 5-V LDO regulator | 10-mA output with ±2% regulation (4.8–5.2 V) - powers external logic or sensors without secondary regulator, reducing BOM count |
| Dual independent current regulation | Separate TOFF, TBLANK, ISGAIN, and OCPTH registers per bridge - enables asymmetric motor control (e.g., different winding resistances or loads) |
| Fault diagnostics via SPI | Dedicated register bits report UVLO, OCP, TSD, gate fault, and blanking timeout - enables precise root-cause analysis without oscilloscope dependency |
Applications
| Automatic Teller Machines | Office Automation Equipment |
|---|---|
Use Scenario: Precise bidirectional paper transport and cash dispensing mechanisms requiring smooth acceleration/deceleration and stall detection. IC Role / Device Role / Timing Role: Dual H-bridge gate driver controlling two independent brushed DC motors - one for paper feed, one for cash stacker - with synchronized current-regulated PWM. Use Value: Auto-mixed decay ensures consistent torque delivery at low speeds; 65-μA sleep current extends uptime during idle periods between transactions. |
Use Scenario: Duplex scanning, document feeding, and stapling subsystems in multifunction printers where compact size and thermal reliability are critical. IC Role / Device Role / Timing Role: Gate driver for dual brushed motors driving scanner carriage and paper path rollers - configured via SPI for variable-speed profiles. Use Value: Programmable blanking time (500 ns–5.14 µs) rejects noise from commutation spikes; 38-pin HTSSOP PowerPAD™ enables high-power density on space-constrained PCBs. |
| Factory Automation Robotics | Textile Machinery |
Use Scenario: Joint actuation in collaborative robotic arms where torque accuracy, fault resilience, and silent operation are required. IC Role / Device Role / Timing Role: Dual motor controller managing two axis drives - each with independent current sensing and decay mode selection for load-adaptive motion. Use Value: SPI-accessible torque DAC (256-step) enables closed-loop current control without external DAC; thermal shutdown (150 °C) protects against jam-induced overheating. |
Use Scenario: Yarn tension control and shuttle movement in high-speed looms demanding robust overcurrent protection and repeatable start-stop behavior. IC Role / Device Role / Timing Role: Gate driver for dual brushed motors controlling warp beam and weft insertion - operated in direct PWM mode with hardware fault signaling. Use Value: nFAULT pin provides immediate hardware interrupt on overcurrent events; 8–52 V operating range accommodates legacy 24 V and modern 48 V industrial buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual H-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB9051FTG | Integrated MOSFETs (40 V, 3 A), no external FET requirement; lacks SPI-configurable decay modes and auto-mixed decay | Better for space-constrained, lower-current (<3 A) applications; unsuitable when >3 A per channel or programmable decay is needed | Select TB9051FTG only if integrated FETs meet current/voltage specs and SPI-based decay tuning is unnecessary |
| MP6532GQ-Z | Single H-bridge (not dual); supports 5–36 V, 200-mA gate drive, but no current sense amplifier or torque DAC | Requires two units for dual-motor control; lacks integrated current regulation and fault diagnostics via register readback | Choose MP6532GQ-Z only for cost-sensitive single-axis designs where external current sensing and SPI configuration are handled externally |
Compared with TB9051FTG and MP6532GQ-Z, the DRV8704DCP uniquely delivers dual independent H-bridge control with SPI-programmable auto-mixed decay, integrated current sense amplifiers, and torque DAC - making it the only option among the three supporting high-current, high-precision, and diagnostics-rich brushed DC motor systems.
Availability
DRV8704DCP is available at Aetrix Electronics and suitable for automatic teller machines, office automation equipment, and factory automation robotics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial-grade production.
Supply support for DRV8704DCP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in motor control IC design and industrial power management solutions.
The DRV8704DCP belongs to TI's high-voltage brushed DC motor driver product line, engineered specifically for industrial motion applications demanding precise current regulation, robust fault handling, and flexible configuration via SPI in harsh thermal and electrical environments.
FAQ
What is the maximum motor supply voltage supported by the DRV8704DCP?
The DRV8704DCP supports a motor supply voltage (VM) range of 8.0 V to 52 V, with absolute maximum rating of 60 V. Operation above 52 V violates recommended conditions and may trigger undervoltage lockout recovery at 7.1 V or cause permanent damage. For 48 V industrial bus applications, the DRV8704DCP remains within safe operating limits and delivers full gate drive performance without derating.
How does the auto-mixed decay mode function in the DRV8704DCP?
The DRV8704DCP auto-mixed decay mode samples motor current at the end of the blanking period (tBLANK). If current exceeds the trip threshold (Itrip), it initiates fast decay; once current falls below Itrip (after another blanking interval), it switches to slow decay for the remainder of the fixed off-time (tOFF). This dynamic behavior eliminates manual decay tuning and maintains torque consistency across varying load and speed conditions in the DRV8704DCP.
Does the DRV8704DCP integrate a voltage regulator, and what is its output capability?
Yes, the DRV8704DCP integrates a 5-V linear regulator (V5) delivering up to 10 mA with ±2% regulation (4.8–5.2 V) across –40 °C to +85 °C. It is intended for powering external logic, microcontrollers, or sensors - not for high-current loads. The regulator requires a 0.1-μF ceramic bypass capacitor to GND and is enabled automatically when VM ≥12 V. This feature reduces external component count in the DRV8704DCP system design.
What protection features are implemented in the DRV8704DCP?
The DRV8704DCP includes VM undervoltage lockout (UVLO), overcurrent protection (OCP) with four programmable thresholds (160–1200 mV), thermal shutdown (TSD) at 150 °C with 20 °C hysteresis, gate driver fault detection, and fault condition indication via the open-drain nFAULT pin. All faults are also reported individually through dedicated SPI register bits, enabling comprehensive diagnostics without additional monitoring circuitry in the DRV8704DCP application.
Can the DRV8704DCP drive both high-side and low-side N-channel MOSFETs without external bootstrap components?
Yes, the DRV8704DCP uses an internal charge pump (VCP) to generate boosted gate drive voltage for high-side N-MOSFETs, eliminating the need for external bootstrap diodes or capacitors. The charge pump requires only two external 1-μF X7R ceramic capacitors (CP1–CP2 and VCP–VM) and supports full 52-V operation. This architecture ensures reliable high-side drive across the entire 8–52 V VM range in the DRV8704DCP design.
DRV8704DCP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 38-PowerTFSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Pre-Driver - Half Bridge (4)
- Interface:
- PWM, SPI
- Technology:
- NMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- -
- Voltage - Supply:
- 0V ~ 5.3V
- Voltage - Load:
- 8V ~ 52V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 38-HTSSOP
DRV8704DCP FAQ
1.How can I place an order for DRV8704DCP through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8704DCP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV8704DCP reliable?
The price and inventory of DRV8704DCP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8704DCP is usually 5 days.
3.What payment methods are accepted for DRV8704DCP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8704DCP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8704DCP?
DRV8704DCP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8704DCP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV8704DCP?
For technical support, including DRV8704DCP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8704DCP requirements.
6.How does Aetrix verify that DRV8704DCP is sourced from the original manufacturer or authorized distributors?
All DRV8704DCP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV8704DCP meets industry standards.
7.What is the process for return or replacement of DRV8704DCP?
All DRV8704DCP units undergo pre-shipment inspection (PSI). If there is an issue with DRV8704DCP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV8704DCP part is unused and in its original packaging.
Return procedure for DRV8704DCP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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