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Texas Instruments TPIC43T01DAR
- Part No.:
- TPIC43T01DAR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
TPIC43T01DAR.pdf
- Description:
- IC MOTOR DRIVER 18V-28V 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,147
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Product details
Overview
TPIC43T01DAR from Texas Instruments is a monolithic three-phase brushless DC motor RPM controller IC with integrated PLL-based speed regulation, EEPROM-programmable DSP loop compensation, and six-channel gate drive outputs for external N-channel FETs in half-H configuration. It supports 8–28 V supply, delivers 5 V/10 mA regulated output, and enables synchronous rectification (enabled by default). It is used in precision industrial blowers, HVAC fan modules, and closed-loop spindle drives requiring ±5% RPM lock accuracy.
For engineers reviewing the TPIC43T01DAR datasheet, TPIC43T01DAR pinout, TPIC43T01DAR application, or TPIC43T01DAR equivalent, key selection considerations include its standalone operation (no host processor), differential Hall/VR sensor interface support, charge-pump high-side gate drive capability, EEPROM-adjustable PLL gain and filter coefficients, and built-in stalled-motor shutdown with ±5% lock detection window.
Technical Context
The TPIC43T01DAR implements a digital signal processing control loop centered on an 8-bit PWM generator clocked by a 5.8 MHz internal oscillator (divided to ~22.7 kHz PWM frequency), with sampling synchronized to an external RT/CT oscillator. Its phase-locked loop compares FGSOUT (digitized variable-reluctance speed signal) against an EEPROM-configurable FG reference frequency derived from a 5–10 MHz crystal or external OSC1 input.
Commutation logic decodes three differential Hall inputs using gray-code sequencing, with forward/reverse direction controlled by the F/R pin and coast mode triggered automatically when speed exceeds f(ref) by >5%. Synchronous rectification is enabled by default (EEPROM addr 0, bit 3 = H), allowing complementary LGx turn-on during UGx off-time to reduce conduction loss in the low-side FET body diode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 8 V to 28 V - supports wide-input industrial power rails without external regulators. |
| PWM Frequency | 22.7 kHz (typ) - minimizes audible noise while enabling efficient switching of external N-FETs. |
| RPM Lock Accuracy | ±5% window - enables precise closed-loop speed regulation for constant-RPM applications. |
| Gate Drive Outputs | Six pre-drive channels (UGA/LGA, UGB/LGB, UGC/LGC) - directly interfaces with discrete N-channel FETs in 3-half-H topology. |
| Charge Pump Output | VCP = VCC + 14 to VCC + 17 V (typ) - generates sufficient gate voltage to fully enhance high-side N-FETs. |
| 5 V Regulator Output | 5.0 V ±2.5%, 10 mA - powers external logic or sensors without auxiliary LDO. |
| Crystal Oscillator Range | 5 MHz to 10 MHz - sets base timebase for PLL; four EEPROM-selectable divide ratios support flexible RPM reference tuning. |
Pinout & Package
TPIC43T01DAR is housed in a 38-pin DA package (small-outline surface-mount), with thermal pad exposed on underside for enhanced power dissipation in motor drive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UGA, UGB, UGC | Upper gate drive outputs | Drive gates of high-side N-FETs; require charge-pump voltage (VCP) for full enhancement. |
| LGA, LGB, LGC | Lower gate drive outputs | Drive gates of low-side N-FETs; referenced to PGND for accurate turn-off timing. |
| IN1+/IN1−, IN2+/IN2−, IN3+/IN3− | Differential Hall position inputs | Accept low-level signals from naked Hall elements; provide ±7 mV threshold with hysteresis for noise immunity. |
| FGIN+/FGIN−, FGSOUT | Variable-reluctance speed sensor interface | Amplify and digitize sinusoidal FG pickup signal; FGSOUT feeds PLL for RPM feedback. |
| SENSE | High-side current limit sense input | Monitors motor phase current via external shunt; triggers deglitch-blanked shutdown at 0.5 V threshold. |
| VCC, VDD, GND, PGND | Power and ground terminals | VCC = main 8–28 V supply; VDD = regulated 5 V output; PGND separates power-switching return from logic ground. |
| OSC1, OSC2, CT, RT, CLT | Oscillator and timing network connections | Support crystal-based FG reference (OSC1/OSC2), digital filter sampling (RT/CT), and lock timer (RT/CLT). |
| F/R, S/S, FSEL, LD | Digital control and status I/O | F/R sets rotation direction; S/S starts/stops motor; FSEL toggles FG reference divide-by-2; LD is open-drain lock detect flag. |
Key Features
| Feature | Design Value |
|---|---|
| Standalone RPM control | Eliminates need for external microcontroller - all commutation, PLL, PWM, and fault management handled on-chip. |
| EEPROM-programmable loop parameters | Allows field-tuning of PLL gain and DSP filter coefficients (pole/zero) to match specific motor inertia and load dynamics. |
| Synchronous rectification (enabled) | Reduces power loss during PWM off-time by turning on complementary low-side FET instead of relying on body diode conduction. |
| Differential sensor interfaces | Supports both analog VR speed pickups and low-voltage Hall position sensors - improves noise immunity in electrically noisy motor environments. |
| Integrated protection logic | Combines high-side current limiting, over-current shutdown (OCSD), stalled-motor timeout, and UVLO to prevent FET destruction under fault. |
Applications
| Industrial Blower Control | HVAC Fan Module |
|---|---|
Use Scenario: Constant-air-volume (CAV) blower in commercial HVAC system requiring stable airflow across varying duct static pressure. IC Role / Device Role / Timing Role: TPIC43T01DAR acts as the primary RPM regulator, locking motor speed to a fixed reference derived from crystal oscillator and adjusting PWM duty cycle in real time based on FG feedback. Use Value: Maintains ±5% speed accuracy without host MCU, reducing BOM cost and firmware complexity while supporting analog setpoint input via FSEL. |
Use Scenario: Multi-speed condenser fan in residential heat pump, operating across ambient temperatures from –20°C to 50°C. IC Role / Device Role / Timing Role: TPIC43T01DAR provides commutation sequencing, Hall decoding, and thermal-aware PWM control - leveraging its 0°C to 70°C case temperature rating and charge-pump stability over 8–28 V supply range. Use Value: Enables single-board fan control with no software development; synchronous rectification improves efficiency by >8% versus diode-based recirculation at full load. |
| Spindle Drive for Precision Tooling | Automated Conveyor Motor |
Use Scenario: Low-inertia spindle in CNC engraving machine requiring rapid acceleration/deceleration and tight speed hold during cutting. IC Role / Device Role / Timing Role: TPIC43T01DAR executes real-time digital filtering and integrator-based loop compensation - parameters tuned via EEPROM to minimize overshoot and settle within 100 ms after step load change. Use Value: Achieves <1% speed deviation under 50% torque step load due to programmable DSP coefficients and 22.7 kHz PWM resolution. |
Use Scenario: Indexing conveyor in packaging line where motor must start/stop reliably at defined positions using Hall-based commutation. IC Role / Device Role / Timing Role: TPIC43T01DAR interprets three differential Hall inputs to determine rotor position and sequences six gate drives accordingly - with F/R pin controlling direction and S/S enabling precise start/stop control. Use Value: Eliminates need for encoder or resolver; gray-code decoding ensures glitch-free commutation even during transient EMI events near motors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase BLDC motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPIC43T02DAR | Synchronous rectification disabled by default (EEPROM addr 0, bit 3 = L); identical pinout, timing, and protection features. | Preferred where body-diode conduction is acceptable or where external synchronous rectification control is implemented separately. | Select TPIC43T02DAR only if synchronous rectification is undesirable - otherwise TPIC43T01DAR provides higher efficiency out-of-box. |
| STSPIN32F0B | Integrated 3-phase gate driver + ARM Cortex-M0 MCU; requires firmware development; no EEPROM-based loop tuning; operates from 6–45 V. | Used when programmable motion profiles, field-oriented control (FOC), or communication interfaces (UART/SPI) are required. | Choose STSPIN32F0B only when advanced control algorithms or host connectivity are needed - TPIC43T01DAR offers simpler, deterministic analog-digital hybrid control. |
Compared with TPIC43T02DAR, TPIC43T01DAR delivers immediate efficiency gains via enabled synchronous rectification; compared with STSPIN32F0B, it eliminates firmware dependency and reduces design cycle time for fixed-RPM applications requiring robust analog-loop stability.
Availability
TPIC43T01DAR is available at Aetrix Electronics and suitable for industrial blowers, HVAC fan modules, precision spindles, and automated conveyors requiring stable component supply across extended product lifecycles.
Supply support for TPIC43T01DAR 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 decades of expertise in motor control ICs and industrial-grade reliability.
The TPIC43T01DAR belongs to TI's legacy motor control portfolio designed specifically for cost-sensitive, high-reliability three-phase BLDC RPM regulation - emphasizing standalone operation, analog-digital hybrid architecture, and field-programmable loop dynamics.
FAQ
What is the default synchronous rectification setting for TPIC43T01DAR?
The TPIC43T01DAR has synchronous rectification enabled by default (EEPROM address 0, bit 3 = H). This allows complementary low-side FET turn-on during high-side PWM off-time, reducing conduction losses versus body-diode recirculation. The feature can be disabled via EEPROM reprogramming if required for specific motor winding characteristics or layout constraints.
Does TPIC43T01DAR require an external microcontroller to operate?
No - the TPIC43T01DAR is a standalone motor controller. It integrates all necessary functions including PLL-based RPM regulation, Hall/VR sensor signal conditioning, commutation logic, 8-bit PWM generation, gate drive pre-drivers, and fault protection. No host processor, firmware, or external timing components beyond crystal/resistors/capacitors are needed for basic operation.
How does TPIC43T01DAR achieve ±5% RPM lock accuracy?
The TPIC43T01DAR achieves ±5% RPM lock accuracy through its dedicated lock-detect circuit, which continuously compares the digitized FGSOUT frequency (from variable-reluctance sensor) against an EEPROM-configurable FG reference frequency. When deviation exceeds ±5%, the LD pin asserts low and - if sustained - triggers the stalled-motor timer and shutdown sequence.
What is the purpose of the VCP, CP1, and CP2 pins on TPIC43T01DAR?
VCP is the charge-pump output voltage node (VCC + 14–17 V), while CP1 and CP2 are switched-capacitor outputs that generate the boosted voltage. Together, they enable full enhancement of external high-side N-channel FETs in the 3-half-H bridge - eliminating need for bootstrap circuits or isolated supplies in high-voltage motor drive stages.
Can TPIC43T01DAR support both Hall-effect and variable-reluctance sensors simultaneously?
Yes - TPIC43T01DAR provides separate, dedicated interfaces: three differential pairs (IN1±, IN2±, IN3±) for Hall-effect position sensing and FGIN±/FGSOUT for variable-reluctance speed sensing. Both operate concurrently, with Hall inputs driving commutation logic and VR input feeding the PLL speed regulation loop - enabling precise electronic commutation and closed-loop RPM control in one device.
TPIC43T01DAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Pre-Driver - Half Bridge (3)
- Interface:
- Serial
- Technology:
- DMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- -
- Voltage - Supply:
- 18V ~ 28V
- Voltage - Load:
- -
- Operating Temperature:
- 0°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 38-TSSOP
TPIC43T01DAR FAQ
1.How can I place an order for TPIC43T01DAR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPIC43T01DAR 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 TPIC43T01DAR reliable?
The price and inventory of TPIC43T01DAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPIC43T01DAR is usually 5 days.
3.What payment methods are accepted for TPIC43T01DAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPIC43T01DAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPIC43T01DAR?
TPIC43T01DAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPIC43T01DAR 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 TPIC43T01DAR?
For technical support, including TPIC43T01DAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPIC43T01DAR requirements.
6.How does Aetrix verify that TPIC43T01DAR is sourced from the original manufacturer or authorized distributors?
All TPIC43T01DAR 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 TPIC43T01DAR meets industry standards.
7.What is the process for return or replacement of TPIC43T01DAR?
All TPIC43T01DAR units undergo pre-shipment inspection (PSI). If there is an issue with TPIC43T01DAR, 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 TPIC43T01DAR part is unused and in its original packaging.
Return procedure for TPIC43T01DAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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