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Toshiba Semiconductor and Storage TC78B009FTG,EL
- Part No.:
- TC78B009FTG,EL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 36-WFQFN Exposed Pad
- Datasheet:
-
TC78B009FTG,EL.pdf
- Description:
- 30V, 3-PHASE BRUSHLESS DC (BLDC)
- Quantity:
- Payment:
- Shipping:
Inventory:2,808
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Product details
Overview
TC78B009FTG from Toshiba Electronic Devices & Storage Corporation is a sensorless 3-phase PWM predriver IC for brushless DC motors, integrating closed-loop speed control, NVM-based motor parameter storage, and gate drive for external high-side/low-side N-ch MOSFETs. It operates from 5.5 V to 27 V, supports I²C/analog/PWM speed command inputs, and delivers up to 100 mA sink current per gate driver output - used in compact fan, pump, and portable vacuum motor systems.
For engineers reviewing the TC78B009FTG datasheet, TC78B009FTG pinout, TC78B009FTG application, or TC78B009FTG equivalent, this page provides verified technical context on sensorless commutation, programmable dead time (250–1500 ns), 8-level gate drive current selection, FG pulse-per-revolution configuration, and register-controlled lead angle (0°–30°) and PWM frequency (23.4–187.5 kHz).
Technical Context
The TC78B009FTG implements a sensorless FOC-adjacent commutation engine using back-EMF zero-crossing detection with configurable hysteresis (±100/200/300 mV) and selectable commutation angles (120°, 135°, 142.5°, 150°). Its internal NVM stores motor-specific parameters including startup current limit, soft-start duty ramp rate, and closed-loop PID-like speed control settings - enabling autonomous operation without an external microcontroller.
It integrates three independent half-bridge predrivers with programmable source (10–100 mA) and sink (20–200 mA) currents, charge-pump-based high-side gate drive (VM + 8 V typ.), and comprehensive protection: thermal shutdown (TSD), UVLO, overcurrent (OCP/ISD), lock detection, and CPVSD. All diagnostics (ALERT), rotation feedback (FG), and current monitoring (PHBF) are hardware-supported and register-configurable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.5 V to 27 V - supports wide-input industrial and battery-powered BLDC systems; absolute max 30 V. |
| PWM Output Frequency | 23.4 / 46.9 / 93.7 / 187.5 kHz - selectable via FPWM register; enables optimization of EMI vs. efficiency. |
| Gate Drive Current | Source: 10–100 mA; Sink: 20–200 mA - adjustable per phase to match MOSFET Qg and switching loss requirements. |
| Dead Time Control | 250 / 500 / 1000 / 1500 ns - programmable via DEADTIME register to prevent shoot-through during direction reversal or braking. |
| Speed Command Interface | I²C (7-bit address + ID1/ID2 pins), analog voltage (0–5 V), or PWM (1–20 kHz, 9-bit resolution) - flexible integration into MCU-less or MCU-assisted systems. |
| Rotation Feedback | FG open-drain output with programmable pulses per revolution (1–10 ppr for 2–10-pole motors) - enables precise RPM measurement without external logic. |
| Lead Angle Range | 0° to 30° (dependent on commutation angle) - tunable via LA register to maximize torque or reduce acoustic noise per motor design. |
Pinout & Package
TC78B009FTG is housed in a thermally enhanced 36-pin QFN package (P-WQFN36-0505-0.50-001), 5.0 mm × 5.0 mm × 0.9 mm, with exposed thermal pad. Pin pitch is 0.5 mm; weight is 0.06 g (typ.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GLU, GLV, GLW | Low-side gate drive outputs | Drive gates of U/V/W low-side N-MOSFETs; each supports up to 200 mA sink current. |
| GHU, GHV, GHW | High-side gate drive outputs | Charge-pump boosted outputs (VM + 8 V typ.) for U/V/W high-side N-MOSFETs. |
| OUTU, OUTV, OUTW | Motor phase connection inputs | Connect to motor windings; internally monitor back-EMF for sensorless commutation. |
| SPD, SEL, CWCCW, BRAKE, STBY | Digital control inputs | Configure speed command source, direction, brake activation, and standby entry - all CMOS-compatible with internal pull-up/down options. |
| SCL, SDA, ID1, ID2 | I²C interface terminals | Support standard-mode (100 kHz) and fast-mode (400 kHz) communication; ID pins set slave address (0x60–0x67). |
| PHBF, RSB, RSA | Current sensing interface | RSA sets OCP threshold; RSB feeds shunt voltage to internal amplifier; PHBF outputs peak-hold DC level proportional to motor current. |
| FG, ALERT | Diagnostic outputs | FG: open-drain RPM pulse; ALERT: active-low fault flag indicating TSD, OCP, ISD, lock, or CPVSD. |
| VCP, CPP, CPM, VM, VREG, GND | Power & bias rails | VCP/CPP/CPM form charge-pump network; VM = main motor supply (5.5–27 V); VREG = 5 V regulated output for external circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Closed-loop speed control without MCU | On-chip PI-like regulation uses FG feedback and programmable speed curve (DUTYCHGLIMIT/DUTY_UP_TIME) - eliminates need for external controller in basic RPM-stabilized applications. |
| Programmable sensorless commutation | Selectable commutation angle (120°–150°) and lead angle (0°–30°) via registers - enables tuning for torque ripple, efficiency, and acoustic noise across motor variants. |
| Configurable gate drive strength | Independent SOURCE (10–100 mA) and SINK (20–200 mA) current settings per half-bridge - balances switching speed, EMI, and MOSFET gate loss. |
| Multi-mode speed command input | Hardware-selectable I²C, analog voltage (0–5 V), or PWM (1–20 kHz) via SEL pin and SPD pin - simplifies system-level interface design. |
| Comprehensive fault protection | Dedicated hardware blocks for TSD, UVLO, OCP, ISD, lock detection, CPVSD, and ALERT output - ensures safe shutdown without firmware intervention. |
| NVM-based motor adaptation | Non-volatile memory stores startup parameters (e.g., MAXSPEED, STARTCURRENT, COMP_HYS) - allows one-time calibration per motor type and field reprogramming. |
Applications
| Fan Control System | Pump Motor Drive |
|---|---|
Use Scenario: High-efficiency cooling fan in server power supplies or telecom chassis requiring silent, stable airflow across temperature and load variations. IC Role / Device Role / Timing Role: Sensorless predriver managing commutation, closed-loop RPM control, and thermal derating - replaces discrete gate drivers + MCU. Use Value: Eliminates hall sensors and reduces BOM count; NVM stores fan-specific startup and speed curves, enabling plug-and-play replacement. |
Use Scenario: 24 V DC brushless water pump in HVAC or medical fluid delivery systems needing precise flow-rate control and stall detection. IC Role / Device Role / Timing Role: Pre-driver with integrated OCP, FG feedback, and programmable dead time - ensures reliable start-up under load and smooth speed transitions. Use Value: Built-in current monitoring (PHBF) and lock protection prevent dry-run damage; I²C interface enables remote diagnostics and firmware updates. |
| Portable Vacuum Motor | Industrial Blower Module |
Use Scenario: Cordless handheld vacuum cleaner requiring high-torque startup, variable suction control, and battery-life optimization. IC Role / Device Role / Timing Role: PWM predriver with analog/PWM speed command support and soft-start - manages rapid acceleration while limiting inrush current. Use Value: Standby mode (STBY pin) cuts quiescent current to <100 µA; programmable soft-start duty ramp prevents battery voltage sag during startup. |
Use Scenario: Enclosed industrial blower for dust extraction where EMI compliance and thermal reliability are critical. IC Role / Device Role / Timing Role: Gate driver with 187.5 kHz PWM option and adjustable slew rate - minimizes switching losses and conducted emissions. Use Value: Charge-pump high-side drive ensures robust gate turn-on at low VM; thermal shutdown (TSD) and ALERT output enable predictive maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase sensorless BLDC predriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0BTR | Integrated 32-bit ARM Cortex-M0+ MCU + gate drivers; requires firmware development; no NVM motor calibration storage. | Best for systems needing custom commutation algorithms, field-oriented control, or multi-motor coordination. | Choose when full programmability and real-time control flexibility outweigh cost and design cycle time. |
| MP6539AGU-P | Single-chip 3-phase gate driver with integrated current sense amps; no closed-loop speed control or NVM; supports only PWM speed input. | Suitable for cost-sensitive, fixed-speed or simple RPM-step applications without autonomous regulation. | Choose when closed-loop autonomy is unnecessary and board space is constrained - lacks FG output and I²C configurability. |
Compared with TC78B009FTG, STSPIN32F0BTR adds processing capability but increases software overhead and BOM complexity, while MP6539AGU-P reduces integration depth by omitting NVM, closed-loop control, and multi-interface speed command support - making TC78B009FTG optimal for drop-in, self-contained BLDC motor modules.
Availability
TC78B009FTG is available at Aetrix Electronics and suitable for fan control systems, pump motor drives, and portable vacuum applications requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for TC78B009FTG 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
Toshiba Electronic Devices & Storage Corporation designs high-reliability semiconductor solutions for industrial, automotive, and consumer applications, with leadership in power management, motor control, and optical devices.
The TC78B009FTG belongs to Toshiba's CDMOS Linear IC family, engineered specifically for compact, sensorless BLDC motor systems where autonomous closed-loop operation, programmable gate drive, and NVM-based motor adaptation are essential.
FAQ
What is the maximum motor supply voltage supported by the TC78B009FTG?
The TC78B009FTG supports a continuous operating voltage range of 5.5 V to 27 V on the VM pin, with an absolute maximum rating of 30 V. Exceeding 27 V risks violating recommended operating conditions and may trigger UVLO or reduce long-term reliability. The charge pump circuit requires VM ≥ 8 V to generate sufficient high-side gate drive voltage (VM + 8 V typ.).
Does the TC78B009FTG require an external microcontroller to operate?
No - the TC78B009FTG implements autonomous closed-loop speed control using its internal NVM, FG feedback, and register-programmed PID-like regulation. It can start, run, brake, and respond to faults without any external MCU. However, an MCU is required only if I²C configuration or dynamic parameter updates are needed beyond initial NVM programming.
How does the TC78B009FTG achieve sensorless commutation without hall sensors?
The TC78B009FTG detects back-EMF zero-crossing events on the OUTU/OUTV/OUTW pins during non-driven phases. It uses programmable hysteresis (±100/200/300 mV) and adaptive filtering to reject noise, then triggers commutation based on detected rotor position. Startup employs DC excitation and forced commutation before transitioning to sensorless mode - all handled internally.
Can the TC78B009FTG drive both delta- and wye-connected BLDC motors?
Yes - the TC78B009FTG explicitly supports both delta and wye motor configurations. Its sensorless algorithm adapts to winding topology via register settings (e.g., commutation angle, lead angle), and its gate drivers deliver symmetric high/low-side timing regardless of connection type. No hardware changes are required between configurations.
What protection features are built into the TC78B009FTG?
The TC78B009FTG integrates thermal shutdown (TSD), under-voltage lockout (UVLO), overcurrent protection (OCP/ISD), charge-pump undervoltage detection (CPVSD), lock protection, and short-brake mode. Faults assert the open-drain ALERT pin and halt gate outputs. All protections are hardware-based and operate independently of register settings or I²C activity.
TC78B009FTG,EL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 36-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Multiphase
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Pre-Driver - High Side/Low Side
- Interface:
- I2C, PWM
- Technology:
- NMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 240mA
- Voltage - Supply:
- 5.5V ~ 27V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-WQFN (5x5)
TC78B009FTG,EL FAQ
1.How can I place an order for TC78B009FTG,EL through Aetrix?
Please submit a Request for Quotation (RFQ) for TC78B009FTG,EL 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 TC78B009FTG,EL reliable?
The price and inventory of TC78B009FTG,EL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC78B009FTG,EL is usually 5 days.
3.What payment methods are accepted for TC78B009FTG,EL?
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4.How is shipping managed for TC78B009FTG,EL?
TC78B009FTG,EL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC78B009FTG,EL 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 TC78B009FTG,EL?
For technical support, including TC78B009FTG,EL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC78B009FTG,EL requirements.
6.How does Aetrix verify that TC78B009FTG,EL is sourced from the original manufacturer or authorized distributors?
All TC78B009FTG,EL 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 TC78B009FTG,EL meets industry standards.
7.What is the process for return or replacement of TC78B009FTG,EL?
All TC78B009FTG,EL units undergo pre-shipment inspection (PSI). If there is an issue with TC78B009FTG,EL, 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 TC78B009FTG,EL part is unused and in its original packaging.
Return procedure for TC78B009FTG,EL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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