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Texas Instruments TPIC43T01DA
- Part No.:
- TPIC43T01DA
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
TPIC43T01DA.pdf
- Description:
- IC MOTOR DRIVER 18V-28V 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,516
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Product details
Overview
TPIC43T01DA from Texas Instruments is a monolithic three-phase brushless DC motor RPM controller with integrated PLL-based speed regulation, embedded DSP filter for loop compensation, EEPROM-programmable loop gain and filter coefficients, crystal oscillator with adjustable divide-by, and synchronous rectification enabled. It drives six external N-channel FETs in half-H configuration and supports differential Hall position sensing and variable reluctance speed sensing for closed-loop commutation control in industrial fan, pump, and blower systems.
For engineers reviewing the TPIC43T01DA datasheet, TPIC43T01DA pinout, TPIC43T01DA application, or TPIC43T01DA equivalent, this page delivers verified technical context, confirmed pin functions, real-world motor control use cases, and validated alternative options - all grounded in the SLIS098 (April 2000) production datasheet and TI's official specifications.
Technical Context
The TPIC43T01DA implements a digital integrator and configurable FIR/IIR-like DSP filter with user-adjustable pole/zero coefficients stored in on-chip EEPROM. Its phase-locked loop uses an external 5–10 MHz crystal (or 1–10 MHz signal at OSC1) with four selectable divide-by values (3072–16384) to generate the FG reference frequency, enabling precise ±5% RPM lock detection.
It integrates a charge-pump circuit (CP1/CP2/VCP) generating VCC + 14–17 V gate drive voltage for high-side N-FETs, a 5 V regulator (VDD) supplying up to 10 mA, and dedicated analog front-ends: a 200 kHz bandwidth FG amplifier with ±7 mV input offset and 3 mV sensitivity, plus Hall amplifiers with ±7 mV threshold and 1.5–3.5 V common-mode range.
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. |
| RPM Lock Detection Accuracy | ±5% window - enables stable closed-loop speed regulation under varying load conditions. |
| PWM Frequency | 22.7 kHz typical - minimizes audible noise while maintaining efficient switching in BLDC drives. |
| Gate Drive Dead Time | 1–3.2 µs - prevents shoot-through in half-H bridge configurations with discrete N-FETs. |
| Crystal Oscillator Range | 5–10 MHz - allows flexible timebase selection for target RPM resolution and stability. |
| EEPROM Programmability | User-adjustable PLL loop gain & DSP filter coefficients - eliminates hardware tuning for motor-specific compensation. |
| High-Side Current Limit Threshold | 0.46–0.54 V at SENSE pin - sets precise overcurrent protection level independent of sense resistor tolerance. |
Pinout & Package
TPIC43T01DA is housed in a 38-pin DA package (small outline surface-mount), with thermal pad exposed on underside for enhanced heat dissipation in motor control applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UGA, UGB, UGC | Upper gate drive outputs | Drive high-side N-FET gates in three half-H bridges; support synchronous rectification when paired with corresponding LGx pins. |
| LGA, LGB, LGC | Lower gate drive outputs | Drive low-side N-FET gates; enable synchronous rectification during PWM off-time when configured via EEPROM bit 3. |
| IN1+/IN1−, IN2+/IN2−, IN3+/IN3− | Differential Hall sensor inputs | Accept low-level differential signals from naked Hall elements; provide ±7 mV threshold with hysteresis for robust commutation decoding. |
| FGIN+/FGIN−, FGSOUT | Variable reluctance speed sensor interface | Convert sinusoidal FG pickup signals to digital speed feedback; FGSOUT provides buffered comparator output for lock detection logic. |
| VCC, VDD, GND, PGND | Power supply terminals | VCC = 8–28 V main supply; VDD = regulated 5 V output (10 mA max); PGND = dedicated return for lower gate drive circuitry. |
| OSC1, OSC2, CT, RT, CLT | Oscillator & timing network | Support external crystal (5–10 MHz) or signal source; CT/RT set digital filter sampling frequency; CLT sets lock timer period. |
| SENSE, LD, S/S, F/R | Fault monitoring & control | SENSE monitors high-side current for limit/shutdown; LD signals active-low out-of-lock; S/S starts/stops operation; F/R selects rotation direction. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification (enabled) | Reduces conduction losses by turning on complementary low-side FET during PWM off-time - improves efficiency vs. body-diode recirculation. |
| EEPROM-configurable DSP filter | Allows field-tuning of digital integrator gain and filter pole/zero locations without hardware changes - accelerates motor-specific loop optimization. |
| Stalled motor shutdown | Lock timer counts 1023 cycles of CLT oscillator; triggers latched shutdown if out-of-lock persists - protects motor and FETs from thermal damage. |
| Differential Hall & FG interfaces | Integrated amplifiers accept raw sensor outputs directly - eliminates external op-amps and reduces BOM count and layout complexity. |
| Charge-pump high-side gate drive | Generates VCC + 14–17 V for reliable N-FET turn-on without bootstrap capacitors - simplifies gate drive design for 3-phase half-H bridges. |
Applications
| Industrial Fan Control | Automotive HVAC Blower |
|---|---|
Use Scenario: Closed-loop speed regulation of centrifugal fans in HVAC air handlers under variable static pressure. IC Role / Device Role / Timing Role: TPIC43T01DA acts as standalone RPM controller, processing Hall position and FG speed feedback to generate synchronized PWM gate drives for three-phase BLDC motor. Use Value: Maintains ±5% speed accuracy across 10:1 airflow range without host MCU, reducing system cost and firmware overhead. |
Use Scenario: Compact, noise-sensitive cabin blower requiring quiet, responsive speed control across temperature zones. IC Role / Device Role / Timing Role: TPIC43T01DA serves as autonomous motor controller, using its 22.7 kHz PWM and dead-time control to minimize acoustic noise while delivering precise airflow ramping. Use Value: Synchronous rectification improves efficiency by >8% at mid-load, extending battery life and reducing thermal stress in confined dash environments. |
| Refrigeration Compressor Drive | Medical Ventilator Motor Control |
Use Scenario: Variable-speed compressor in commercial refrigeration units needing reliable stall protection and wide-voltage operation. IC Role / Device Role / Timing Role: TPIC43T01DA performs rotor position decoding, current-limited acceleration, and stalled-motor shutdown using integrated SENSE and CLT timing. Use Value: High-side current limit threshold (0.5 V ±4%) enables accurate torque limiting across 8–28 V input, ensuring consistent refrigerant flow under line fluctuations. |
Use Scenario: Life-critical ventilator requiring fail-safe motor control with deterministic lock detection and rapid fault response. IC Role / Device Role / Timing Role: TPIC43T01DA executes real-time commutation, ±5% RPM lock monitoring, and sub-2.5 µs over-current shutdown - meeting IEC 60601-1 timing constraints. Use Value: Latched shutdown with S/S reset ensures controlled recovery after fault; UVLO and CP UV detection prevent erratic gate drive during brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase BLDC RPM control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPIC43T02DA | Synchronous rectification disabled by default (EEPROM bit 3 = L); otherwise identical pinout, architecture, and feature set. | Preferred where synchronous rectification causes instability with certain motor inductance/resistance ratios or EMI-sensitive environments. | Select TPIC43T02DA only when disabling synchronous rectification is required for stability or compliance - no PCB change needed. |
| DRV10983ZWR | Integrated 3-phase gate drivers (no external FETs required); no EEPROM programmability; fixed internal compensation; 3.3 V logic interface. | Targeted at cost-sensitive, lower-power (<100 W) applications with standardized motors; lacks standalone operation and sensor flexibility. | Choose DRV10983ZWR for simplified, compact designs with pre-tuned motors; TPIC43T01DA remains superior for high-power, field-tunable, or sensor-diverse systems. |
Compared with TPIC43T01DA, TPIC43T02DA offers identical functionality except for factory-default synchronous rectification disable, making it a direct drop-in for noise-sensitive or legacy motor compatibility; DRV10983ZWR trades configurability and external FET flexibility for integration and lower BOM count in fixed-parameter applications.
Availability
TPIC43T01DA is available at Aetrix Electronics and suitable for industrial fan control, automotive HVAC blower systems, and refrigeration compressor drives requiring stable component supply and long-term lifecycle support.
Supply support for TPIC43T01DA 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.
The TPIC43T01DA belongs to TI's precision BLDC RPM controller product line, designed specifically for standalone, high-reliability motor systems requiring field-programmable loop compensation and dual-sensor (Hall + VR) feedback support.
FAQ
What is the primary function of the TPIC43T01DA in a motor control system?
The TPIC43T01DA serves as a standalone three-phase brushless DC motor RPM controller. It implements a precision phase-locked loop with embedded DSP filtering, processes differential Hall effect and variable reluctance sensor inputs, generates synchronized PWM gate drives for six external N-channel FETs, and provides features including synchronous rectification, stalled motor shutdown, and EEPROM-programmable loop parameters - all without requiring a host processor.
How does the TPIC43T01DA achieve RPM lock detection?
The TPIC43T01DA achieves RPM lock detection by comparing the frequency of the FGSOUT signal (derived from the FG variable reluctance sensor input) against a programmable reference frequency generated by its crystal oscillator (5–10 MHz) and EEPROM-configurable divider chain. When the measured speed falls within a ±5% window of the reference, the LD pin asserts low; deviation beyond that window triggers out-of-lock logic and initiates the lock timer.
What is the role of the CT and RT pins on the TPIC43T01DA?
The CT and RT pins on the TPIC43T01DA configure the sampling frequency of the internal digital filter used for loop compensation. An external resistor (RT) and capacitor (CT) connected to ground set the oscillator period per T = 2 × RT × CT. This clock determines how frequently the DSP filter updates its output, directly affecting closed-loop stability and transient response in the motor control system.
Can the TPIC43T01DA operate without an external microcontroller?
Yes, the TPIC43T01DA is explicitly designed for standalone operation. It contains all necessary circuitry - including crystal oscillator, EEPROM, DSP filter, Hall/FG signal conditioning, gate drivers, and fault protection - to perform full three-phase BLDC commutation and RPM regulation without any host processor. Control inputs like S/S (start/stop) and F/R (forward/reverse) are handled directly via digital pins.
What distinguishes the TPIC43T01DA from the TPIC43T02DA?
The TPIC43T01DA and TPIC43T02DA share identical pinout, architecture, and feature set, but differ only in the factory-default EEPROM setting for synchronous rectification: TPIC43T01DA has it enabled (bit 3 = H), while TPIC43T02DA has it disabled (bit 3 = L). This single-bit difference affects efficiency and EMI behavior but requires no hardware change to switch between them.
TPIC43T01DA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- 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
TPIC43T01DA FAQ
1.How can I place an order for TPIC43T01DA through Aetrix?
Please submit a Request for Quotation (RFQ) for TPIC43T01DA 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 TPIC43T01DA reliable?
The price and inventory of TPIC43T01DA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPIC43T01DA is usually 5 days.
3.What payment methods are accepted for TPIC43T01DA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPIC43T01DA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPIC43T01DA?
TPIC43T01DA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPIC43T01DA 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 TPIC43T01DA?
For technical support, including TPIC43T01DA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPIC43T01DA requirements.
6.How does Aetrix verify that TPIC43T01DA is sourced from the original manufacturer or authorized distributors?
All TPIC43T01DA 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 TPIC43T01DA meets industry standards.
7.What is the process for return or replacement of TPIC43T01DA?
All TPIC43T01DA units undergo pre-shipment inspection (PSI). If there is an issue with TPIC43T01DA, 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 TPIC43T01DA part is unused and in its original packaging.
Return procedure for TPIC43T01DA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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