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Texas Instruments TPIC2040DBTRG4
- Part No.:
- TPIC2040DBTRG4
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPIC2040DBTRG4.pdf
- Description:
- IC MOTOR DRIVER 3V-3.6V 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,244
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Product details
Overview
TPIC2040DBTRG4 from Texas Instruments is a 7-channel serial-interface motor driver IC for optical disk drives, integrating spindle (U/V/W), dual sled (SLED1±/SLED2±), focus/tracking/tilt (FCS±/TRK±/TLT±), load (LOAD±), and current-switch (CSWO) drivers with 12-bit DAC control, BEMF-based sensorless spindle startup, and integrated current-sense resistors. It supports 35-MHz SPI communication and delivers up to 980 mA spindle current with selectable 0.20–0.27 Ω sense resistance.
For engineers reviewing the TPIC2040DBTRG4 datasheet, TPIC2040DBTRG4 pinout, TPIC2040DBTRG4 application, or TPIC2040DBTRG4 equivalent, key selection criteria include its 38-pin TSSOP package, 7 independent PWM-driven output channels with per-channel thermal/OCP protection, 3.3-V digital I/O compatibility, and dedicated end-position sensing for sled motors without external sensors.
Technical Context
The TPIC2040DBTRG4 implements a fully integrated motor control architecture: spindle driver uses BEMF feedback for sensorless rotor position detection and startup; sled and actuator channels employ 10-bit (sled) or 12-bit (focus/tilt/tracking/load) DACs with dead-band control; CSWO provides programmable overcurrent-limited 5-V switching. All channels feature hardware disable (XMUTE) and status latching (thermal, OCP, UVLO/OVP).
It integrates a charge pump (156 kHz typical) for high-side gate drive, internal 3.3-V LDO regulator (CV3P3), and LIN3VG pre-driver for external N-FETs. Protection includes dual-level thermal shutdown (135°C alert / 150°C trip), overvoltage lockout (6.5 V P5V), and per-block overcurrent detection with auto-recovery timing (e.g., 800 ms for load, 1.6 ms for CSW).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| SPI Clock Frequency | Up to 35 MHz - enables fast register programming and real-time actuator control in DVD/CD drive servo loops. |
| Spindle Current Limit | 725–980 mA - configurable via RCOM_SEL register bits to match motor winding resistance and thermal budget. |
| Sled Motor DAC Resolution | 10-bit - provides 1024-step current control for precise sled positioning in optical pickup units. |
| Focus/Tracking/Tilt DAC Resolution | 12-bit - delivers 4096-step resolution for sub-micron actuator positioning accuracy in high-density optical systems. |
| Thermal Shutdown Threshold | 150°C trip with 135°C alert - per-channel temperature sensing (SPM/U/V/W and all actuator outputs) enables localized fault isolation. |
| Overvoltage Protection Trigger | 6.5 V on P5V - forces all outputs to Hi-Z to prevent damage during BEMF-induced voltage spikes in spindle operation. |
| Supply Voltage Range | 4.5–5.5 V (P5V) - compatible with standard 5-V optical drive power rails while maintaining robust UVLO (3.5 V) and OVP margins. |
Pinout & Package
TPIC2040DBTRG4 is housed in a 38-pin TSSOP package (9.70 mm × 4.40 mm) with exposed thermal pad (PGND_SPM, PGND_1, PGND_2) for enhanced heat dissipation in compact optical drive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LOAD+/LOAD− | Load motor H-bridge outputs | Dual-ended PWM drive for optical pickup loading mechanism with 12-bit DAC control and OCP. |
| SLED1+/SLED1−, SLED2+/SLED2− | Dual sled motor outputs | Independent 10-bit DAC-controlled H-bridges for coarse and fine sled positioning in slim DVD drives. |
| FCS+/FCS−, TRK+/TRK−, TLT+/TLT− | Focus/Tracking/Tilt actuator outputs | 12-bit DAC-driven differential outputs enabling dead-zone-free control for high-precision optical alignment. |
| U/V/W | Spindle motor phase outputs | Three-phase BEMF-sensing outputs with integrated current sense resistor (0.20–0.27 Ω) for sensorless commutation. |
| MCOM | Motor center-tap connection | Reference node for spindle motor star-connection; required for BEMF sampling and commutation logic. |
| SSZ, SCLK, SIMO, SOMI | SPI interface signals | Full-duplex 35-MHz serial interface with slave-select active-low, supporting register read/write and status polling. |
| XMUTE | Hardware disable input | Asynchronous active-low signal forcing all driver outputs to Hi-Z - critical for emergency stop and system safety. |
| XRESET | Power-on reset output | Open-drain 20-ms delay signal indicating stable internal supply; used for system-level initialization sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Sensorless Spindle Startup | BEMF-based rotor position detection eliminates Hall sensors and reduces BOM cost in ultra-slim DVD readers. |
| End-Position Sensing | Sled-end detection via BEMF threshold (adjustable 9–220 mV) enables mechanical limit detection without optical encoders. |
| Auto Short Brake | Controlled short-circuit braking of spindle motor during stop commands - reduces coast-down time and improves seek performance. |
| LS Mode Speed Restriction | Software-configurable 25% speed limit for low-noise spindle operation during audio CD playback or quiet mode. |
| Integrated 3.3-V LDO | CV3P3 regulator supplies internal logic and SPI interface - eliminates need for external 3.3-V rail in 5-V-only designs. |
Applications
| DVD/CD Drive Spindle Control | Optical Pickup Sled Positioning |
|---|---|
Use Scenario: Controlling rotation of DVD/CD spindle motor in slim-form-factor optical drives with no external position sensors. IC Role / Device Role / Timing Role: Primary spindle driver with BEMF-based commutation, current limiting, and thermal protection. Use Value: Reduces system cost by eliminating Hall-effect sensors and external current-sense resistors while maintaining <75°C junction temperature under full load. | Use Scenario: Precise linear movement of optical pickup assembly across disc surface using stepping motor. IC Role / Device Role / Timing Role: Dual-channel (SLED1/SLED2) 10-bit DAC-controlled H-bridge driver with end-stop detection. Use Value: Enables sub-10-µm positioning accuracy and automatic mechanical limit recognition without encoder feedback. |
| Focus/Tracking Actuator Servo | Optical Pickup Load Mechanism |
Use Scenario: Real-time correction of laser spot position on disc track during high-speed data reading/writing. IC Role / Device Role / Timing Role: 12-bit DAC-driven differential output for focus (FCS±), tracking (TRK±), and tilt (TLT±) actuators. Use Value: Delivers <50 mV output offset and dead-zone-free control for closed-loop servo bandwidth exceeding 5 kHz. | Use Scenario: Engaging/disengaging optical pickup lens assembly onto disc surface during tray-in/tray-out operations. IC Role / Device Role / Timing Role: High-current (0.8 A peak) 12-bit DAC-controlled load motor driver with overcurrent protection. Use Value: Ensures reliable mechanical actuation with automatic OCP recovery (800 ms Hi-Z hold) preventing coil burnout during jam conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 7-channel optical drive motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPIC2060DBTR | 8-channel variant with additional CSW2 output; identical 38-pin TSSOP package and SPI interface. | Supports dual-load or dual-CSW configurations; requires updated firmware register mapping for extra channel. | Select when needing an additional current-switch output for auxiliary functions like laser diode enable. |
| DRV8876PWPR | Single H-bridge with 3.6-A peak current; no integrated DAC, SPI, or multi-channel coordination logic. | Requires external MCU for closed-loop control; lacks BEMF sensing, sled-end detection, and thermal monitoring per channel. | Select only for discrete actuator replacement where full TPIC2040 feature set is unnecessary and cost is primary constraint. |
Compared with TPIC2040DBTRG4, TPIC2060DBTR extends channel count without changing footprint or interface, while DRV8876PWPR offers higher single-channel current but removes all optical-drive-specific features - making TPIC2040DBTRG4 irreplaceable for integrated servo control in DVD/CD platforms.
Availability
TPIC2040DBTRG4 is available at Aetrix Electronics and suitable for DVD player, CD player, and optical disk drive manufacturing requiring stable component supply, long-term lifecycle support, and traceable sourcing for consumer electronics production.
Supply support for TPIC2040DBTRG4 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 delivering analog and embedded processing solutions, with decades of expertise in precision motor control and optical storage ICs.
The TPIC2040DBTRG4 belongs to TI's optical drive motor driver product line, engineered specifically for low-noise, high-accuracy servo control in slim and ultra-slim DVD/CD readers and writers.
FAQ
What is the maximum continuous spindle motor current supported by the TPIC2040DBTRG4?
The TPIC2040DBTRG4 supports a maximum continuous spindle motor current of 980 mA when configured with the lowest selectable current-sense resistor value (0.20 Ω) via the SPM_RCOM_SEL register. This rating assumes proper PCB thermal design meeting the 81.2°C/W junction-to-ambient thermal resistance specification and operation within the –20°C to +75°C ambient temperature range. The device also supports lower current limits (725–863 mA) by selecting higher sense resistance values to match specific motor requirements.
Does the TPIC2040DBTRG4 require external current-sense resistors for spindle motor control?
No, the TPIC2040DBTRG4 does not require external current-sense resistors for spindle motor control. It integrates an adjustable on-chip current-sense resistor network with four selectable values (0.20 Ω, 0.27 Ω, 0.70 Ω, or 0.77 Ω) controlled by the SPM_RCOM_SEL register bits. This integration reduces bill-of-materials cost and PCB area while maintaining accurate current measurement for torque control and overcurrent protection in the U/V/W phase outputs.
How does the TPIC2040DBTRG4 achieve sensorless spindle motor startup?
The TPIC2040DBTRG4 achieves sensorless spindle motor startup using back-electromotive force (BEMF) detection. It monitors the voltage across the unenergized motor phase during commutation intervals and uses this BEMF signal to determine rotor position. The internal logic then applies timed PWM sequences to initiate rotation without Hall-effect sensors or external position feedback, enabling compact, low-cost spindle control in ultra-slim optical drives.
What protection features are implemented per output channel in the TPIC2040DBTRG4?
The TPIC2040DBTRG4 implements individual thermal protection (TSD) and overcurrent protection (OCP) on every output channel - including U/V/W spindle phases, SLED1/SLED2, FCS/TRK/TLT, LOAD, and CSWO. Each channel has dedicated temperature sensors (135°C alert / 150°C trip) and programmable OCP thresholds. Fault status is latched in registers (e.g., TSD_SPM, OCP_LOAD) and can be cleared via SPI command, ensuring robust, localized fault handling without affecting other channels.
Can the TPIC2040DBTRG4 drive both focus and tracking actuators simultaneously with independent control?
Yes, the TPIC2040DBTRG4 can drive focus (FCS±) and tracking (TRK±) actuators simultaneously with fully independent control. Each channel has its own 12-bit DAC, dedicated output drivers, and separate thermal/OCP monitoring. Register settings for DAC code, gain, and dead-band are individually addressable via SPI, enabling concurrent closed-loop servo operation - essential for high-speed DVD read/write where focus and tracking corrections must occur in parallel with minimal crosstalk.
TPIC2040DBTRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 38-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushless DC (BLDC), Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (15)
- Interface:
- SPI
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Media Player
- Current - Output:
- 1A
- Voltage - Supply:
- 3V ~ 3.6V
- Voltage - Load:
- 4.5V ~ 5.5V
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 38-TSSOP
TPIC2040DBTRG4 FAQ
1.How can I place an order for TPIC2040DBTRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPIC2040DBTRG4 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 TPIC2040DBTRG4 reliable?
The price and inventory of TPIC2040DBTRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPIC2040DBTRG4 is usually 5 days.
3.What payment methods are accepted for TPIC2040DBTRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPIC2040DBTRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPIC2040DBTRG4?
TPIC2040DBTRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPIC2040DBTRG4 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 TPIC2040DBTRG4?
For technical support, including TPIC2040DBTRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPIC2040DBTRG4 requirements.
6.How does Aetrix verify that TPIC2040DBTRG4 is sourced from the original manufacturer or authorized distributors?
All TPIC2040DBTRG4 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 TPIC2040DBTRG4 meets industry standards.
7.What is the process for return or replacement of TPIC2040DBTRG4?
All TPIC2040DBTRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPIC2040DBTRG4, 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 TPIC2040DBTRG4 part is unused and in its original packaging.
Return procedure for TPIC2040DBTRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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