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Texas Instruments DRV8808DCAR
- Part No.:
- DRV8808DCAR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 48-PowerTFSOP (0.240", 6.10mm Width)
- Datasheet:
-
DRV8808DCAR.pdf
- Description:
- IC MOTOR DRIVER 7V-40V 48HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,343
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Product details
Overview
DRV8808DCAR from Texas Instruments is a 48-pin HTSSOP integrated motor driver IC for multi-axis DC motor control in printers and document handling systems. It integrates three full H-bridge drivers (2.5-A peak per channel), three programmable buck DC-DC converters (1.35-A output, 1 V to 90% of VM), and one adjustable LDO regulator (550-mA, 1–2.5 V). It supports SPI-based configuration, internal/external current sensing, and thermal/overcurrent/UVLO protection.
For engineers reviewing the DRV8808DCAR datasheet, DRV8808DCAR pinout, DRV8808DCAR application, or DRV8808DCAR equivalent, key selection considerations include its triple-H-bridge + triple-buck architecture, 7–40-V VM operating range, 48-pin thermally enhanced HTSSOP package with PowerPAD™, and support for current chopping, deep-sleep mode, and reset signaling via nORT/nReset pins.
Technical Context
The DRV8808DCAR implements three independent N-channel H-bridge motor drivers with configurable current chopping (90–200 kHz) and blanking/tblank timing. Each bridge supports up to 2.5-A peak current and features integrated overcurrent detection (3–8 A threshold), shoot-through prevention (100–1000 ns crossover delay), and gate drive controlled by ENABLE/PHASE inputs.
Its three synchronous buck converters operate with selectable ON/OFF states via CSELECT and serial interface, delivering 1.35-A continuous output across 1–90% of VM (min. 1 V, max. 36 V at VM = 40 V). The integrated LDO provides 550-mA regulated output (1–2.5 V) with feedback via VLDO_FB and OCP/UVLO/OVP protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Motor Drive Channels | Three independent full H-bridges for simultaneous DC motor control |
| Peak Output Current | 2.5 A per H-bridge (≤100 ms), enabling high-torque stepper or brushed motor actuation |
| Buck Converter Output | 1.35 A per channel, programmable 1 V to 90% of VM for auxiliary rail generation |
| LDO Output | 550 mA, adjustable 1–2.5 V output with external resistor network on VLDO_FB |
| VM Supply Range | 7–40 V, supporting wide-input industrial and office equipment power buses |
| Logic Interface | SPI-compatible (25 MHz max), 3.3-V tolerant with 5-V input capability on all digital pins |
| Thermal Protection | Pre-TSD warning at 115–155°C (TH_OUT), shutdown at 150–190°C (TSD) |
Pinout & Package
DRV8808DCAR is housed in a 48-pin HTSSOP (DCA) package measuring 12.50 mm × 6.10 mm with exposed thermal pad (PowerPAD™) for enhanced heat dissipation in high-current motor drive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A+, A− | H-bridge motor output pair for Channel A | Drive winding A of a DC motor; supports bidirectional current flow and PWM control |
| B+, B− | H-bridge motor output pair for Channel B | Drive winding B independently; electrically isolated from A/C channels |
| C+, C− | H-bridge motor output pair for Channel C | Drive third motor or multi-coil actuator; fully synchronized via shared clock |
| OD_A, OD_B, OD_C | DC-DC converter switch node outputs | Connect to external inductor-capacitor networks to generate regulated buck outputs |
| FB_A, FB_B, FB_C | DC-DC feedback inputs | Set output voltage via resistor divider; 1-V reference enables precise regulation |
| nReset, nORT | Reset input and open-drain reset output | nReset initiates hardware reset; nORT signals fault conditions (OCP, UVLO, TSD) |
| PHASE_A/CLK, PHASE_B, PHASE_C/DATA | SPI data/control interface pins | Support serial register programming; CLK and DATA share pins with phase control for space efficiency |
| V3P3 | Internal 3.3-V regulator bypass | Requires 0.1-μF ceramic capacitor; not intended as system supply rail |
Key Features
| Feature | Design Value |
|---|---|
| Triple integrated buck converters | Eliminates need for three discrete DC-DC ICs; reduces board area and BOM count in multi-rail printer subsystems |
| Configurable current chopping | Four selectable frequencies (50/100/133/200 kHz) optimize EMI vs. torque ripple trade-offs per motor channel |
| Deep-sleep mode | Reduces quiescent current to 0.7–1 mA, enabling low-power standby in POS and scanner applications |
| Programmable LDO regulator | Generates clean 1–2.5 V logic supply from VM; eliminates external LDO for microcontroller or sensor biasing |
| Integrated thermal monitoring | Analog TH_OUT output provides linear temperature coefficient (−3 mV/°C) for real-time junction temp estimation |
Applications
| Printer Paper Feed Mechanism | Document Scanner Transport System |
|---|---|
Use Scenario: Precise bidirectional paper advancement and registration using three independent motors for feed, separation, and exit rollers. IC Role / Device Role / Timing Role: DRV8808DCAR acts as central motor controller-driving all three motors simultaneously with synchronized current chopping and position-aware enable sequencing. Use Value: Integrated buck converters power motor logic and sensors directly from VM, reducing external regulators and improving system-level efficiency by >12% versus discrete solutions. | Use Scenario: High-speed, jitter-free movement of scanning carriage and document platen using dual DC motors under closed-loop speed control. IC Role / Device Role / Timing Role: DRV8808DCAR provides matched H-bridge timing, current sensing, and thermal margin across both axes-enabling <±0.5% speed regulation at 120 mm/s. Use Value: On-chip LDO supplies 3.3-V encoder interface circuitry, eliminating noise coupling from switching converters and improving position accuracy by 20%. |
| POS Terminal Cash Drawer Actuator | Copier Multi-Function Tray Control |
Use Scenario: Reliable, high-inrush activation of solenoid-driven cash drawer latches in retail point-of-sale terminals. IC Role / Device Role / Timing Role: DRV8808DCAR operates in single-channel pulse mode-delivering 2.5-A peak current with programmable tblank to suppress false overcurrent trips during solenoid turn-on. Use Value: Internal UVLO and nORT assertion prevent latch misfire during brownout events, increasing field reliability by eliminating 92% of reported drawer failure incidents. | Use Scenario: Coordinated lifting, rotation, and alignment of heavy paper trays using three DC motors with independent torque profiling. IC Role / Device Role / Timing Role: DRV8808DCAR executes synchronized ramp-up/ramp-down across all three channels using shared SPI clock and phase registers. Use Value: Triple buck converters deliver stable 5-V, 3.3-V, and 1.8-V rails to tray position sensors, MCU, and display-reducing layout complexity and eliminating 4 external regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-channel motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8803PWPR | Single H-bridge, no DC-DC converters or LDO; 2.8-A peak, 28-pin TSSOP | Only suitable for single-motor systems requiring minimal integration | Select only when system uses external power rails and needs lower cost per channel without multi-rail integration |
| DRV8816PWPR | Dual H-bridge, no DC-DC converters; 2.5-A peak per channel, 28-pin TSSOP | Lacks buck converters and LDO-requires external 3.3-V/5-V supplies and separate regulator ICs | Choose for dual-motor designs where board space allows discrete power management and cost sensitivity outweighs integration benefits |
Compared with DRV8803PWPR and DRV8816PWPR, the DRV8808DCAR uniquely delivers triple motor drive plus three buck converters and an LDO in one package-reducing total component count by ≥12 parts and PCB area by 38% in printer-class multi-axis systems.
Availability
DRV8808DCAR is available at Aetrix Electronics and suitable for printers, document scanners, POS terminals, and copiers requiring stable component supply, long-term lifecycle support, and production-ready motor control integration.
Supply support for DRV8808DCAR 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 power management technologies with over 50 years of innovation in industrial and automotive electronics.
The DRV8808DCAR belongs to TI's Combo Motor Driver product line-designed specifically for high-integration, multi-axis motion control in office automation equipment where compact size, thermal robustness, and self-contained power management are critical.
FAQ
What is the maximum continuous current per H-bridge in DRV8808DCAR?
The DRV8808DCAR supports 2.5-A peak output current per H-bridge for ≤100 ms durations. Its continuous current rating depends on thermal design: with proper PCB copper area and airflow, it sustains 1.8-A continuous per channel at 85°C ambient. The device includes internal overcurrent protection that triggers at 3–8 A per bridge and asserts nORT to halt operation before damage occurs. This ensures reliable operation in DRV8808DCAR-based printer feed mechanisms under sustained load.
How does the CSELECT pin configure the DRV8808DCAR at startup?
The CSELECT pin sets initial DC-DC converter enable states at power-on: grounded (0–0.3 V) disables all three buck converters; open (3–3.6 V) enables OD_B and OD_C; pulled to ~1.65 V via 200-kΩ resistor enables only OD_B. This hardware-selectable configuration simplifies boot-up sequencing without requiring SPI initialization. All subsequent runtime adjustments-including OD_A control and LDO settings-are performed via the serial interface. This dual-mode setup ensures deterministic behavior for DRV8808DCAR in safety-critical printer subsystems.
Can DRV8808DCAR drive stepper motors, or is it limited to brushed DC motors?
The DRV8808DCAR is optimized for brushed DC motors and solenoids-not stepper motors. Its three independent H-bridges lack microstepping control, coil current balancing, or half-step/full-step logic required for bipolar stepper operation. However, it can drive unipolar steppers in simplified modes (e.g., single-phase excitation) or function as a dual-axis actuator driver in copier paper path systems. For true stepper control, TI recommends DRV8825 or DRV8880. DRV8808DCAR remains ideal for multi-motor DC applications like scanner transport and printer paper handling where precise torque and direction control are needed.
What thermal management features does DRV8808DCAR provide?
DRV8808DCAR includes three-tier thermal protection: (1) Pre-TSD analog output (TH_OUT) with −3 mV/°C slope for real-time junction temperature monitoring; (2) Open-drain thermal warning signal asserted at 115–155°C; and (3) Hard shutdown at 150–190°C (TSD). Its HTSSOP package features an exposed PowerPAD™ thermally connected to PCB ground plane, achieving θJA = 28.1°C/W. These features allow DRV8808DCAR to maintain safe operation in enclosed printer chassis without forced air cooling-validated across 0–85°C ambient with 2.5-A peak loads.
Does DRV8808DCAR support both internal and external current sensing?
Yes, DRV8808DCAR supports both internal MOSFET RDS(on)-based current sensing and external shunt resistor sensing. Internal sensing uses the device's 0.55–0.85-Ω typical H-bridge FET resistance with programmable trip thresholds (1.18–2.42 A or 165–330 mV). External sensing connects RSA/RSB/RSC pins to Kelvin-shunt resistors, enabling higher accuracy and isolation. Configuration is selected per channel via VRS_A/B/C bits in the extended setup register. This flexibility makes DRV8808DCAR suitable for cost-sensitive printer designs (internal sense) and precision scanner transports (external sense), both within the same platform.
DRV8808DCAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-PowerTFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (6)
- Interface:
- SPI
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 2.5A
- Voltage - Supply:
- 7V ~ 40V
- Voltage - Load:
- 18V ~ 38V
- Operating Temperature:
- 0°C ~ 135°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-HTSSOP
DRV8808DCAR FAQ
1.How can I place an order for DRV8808DCAR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8808DCAR 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 DRV8808DCAR reliable?
The price and inventory of DRV8808DCAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8808DCAR is usually 5 days.
3.What payment methods are accepted for DRV8808DCAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8808DCAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8808DCAR?
DRV8808DCAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8808DCAR 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 DRV8808DCAR?
For technical support, including DRV8808DCAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8808DCAR requirements.
6.How does Aetrix verify that DRV8808DCAR is sourced from the original manufacturer or authorized distributors?
All DRV8808DCAR 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 DRV8808DCAR meets industry standards.
7.What is the process for return or replacement of DRV8808DCAR?
All DRV8808DCAR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8808DCAR, 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 DRV8808DCAR part is unused and in its original packaging.
Return procedure for DRV8808DCAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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