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Toshiba Semiconductor and Storage TB6633FNG,EL
- Part No.:
- TB6633FNG,EL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 24-LSSOP (0.220", 5.60mm Width)
- Datasheet:
-
TB6633FNG,EL.pdf
- Description:
- IC MOTOR DRIVER 5.5V-22V 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,264
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Product details
Overview
TB6633FNG,EL from Toshiba is a 3-phase full-wave PWM driver IC for sensorless brushless DC (BLDC) motors, integrating 7-bit ADC-based analog speed control, lead angle selection (0°/15°/30°), overlapping commutation (120°/135°/150°), and FG_OUT tachometer output (3 pulses per electrical degree). It delivers 0.6 A typical output current with VM supply range of 4.5–22 V and supports forward/reverse rotation in motor control systems for HVAC blowers and power tools.
For engineers reviewing the TB6633FNG,EL datasheet, TB6633FNG,EL pinout, TB6633FNG,EL application, or TB6633FNG,EL equivalent, key selection considerations include its sensorless startup sequence (DC excitation + forced commutation), thermal shutdown (165°C), overcurrent protection (ISD), undervoltage lockout (VMLVD = 3.5 V), and compatibility with 5.1 MHz internal oscillator (OSC_C = 68 pF, OSC_R = 20 kΩ).
Technical Context
The TB6633FNG,EL implements sensorless commutation by detecting back-EMF polarity across U/V/W phases to transition from forced commutation (fST = fosc/(6×2¹⁷) to fosc/(6×2¹⁹)) to closed-loop operation. Its startup logic uses TIP and TRE pins to set DC excitation time (0.1 s typ.) and restart delay (1 s typ.), while VSP and VST pins independently configure PWM duty cycle for running and startup modes.
Control flexibility is achieved via dedicated pins: LA selects lead angle, SEL_LAP enables overlapping commutation, SLOP configures modulation on phase transitions, and FPWM sets PWM frequency (20 kHz or 40 kHz). The IC integrates VREF = 5 V (typ.) reference, open-drain FG_OUT for speed feedback, and short-brake control via BRAKE pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 0.6 A typ. (1 A max); sufficient for small-to-medium BLDC motors up to ~25 W at 12 V. |
| Supply Voltage (VM) | 4.5–22 V (25 V abs. max); supports 5 V logic-compatible and 12–24 V motor rails. |
| PWM Frequency | 20 kHz or 40 kHz selectable; minimizes audible noise while enabling efficient MOSFET switching. |
| FG_OUT Resolution | 3 pulses per electrical degree; enables precise speed measurement (e.g., 6 pulses/rev for 4-pole motor). |
| Startup Logic | DC excitation + forced commutation with user-adjustable timing (TIP/TRE caps); ensures reliable rotor alignment without Hall sensors. |
| Protection Features | Overcurrent (ISD), thermal shutdown (TSD = 165°C), UVLO (VMLVD = 3.5 V), and short-brake control; reduces external protection circuitry. |
| Oscillator | Internal 5.1 MHz (typ.) with external OSC_R/OSC_C; eliminates need for crystal or external clock source. |
Pinout & Package
Package: HSOP-24 (Heat Sink Out Package), 15.0 mm × 10.0 mm × 2.1 mm, 0.136 g typical weight, exposed thermal pad for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| U / V / W | 3-phase motor outputs | Drive BLDC motor windings in full-bridge configuration; support 0.6 A continuous per phase. |
| VM | Motor power supply | Accepts 4.5–22 V input; powers internal pre-driver and output stages. |
| VSP | Analog speed control input | 7-bit ADC input (1–4 V range) sets PWM duty cycle during normal operation. |
| CW_CCW | Rotation direction select | Pull-down logic input: High = CCW (U→W→V), Low/Open = CW (U→V→W). |
| FG_OUT | Speed feedback output | Open-drain signal generating 3 pulses per electrical degree for tachometer or closed-loop speed regulation. |
| IR | Shunt resistor connection | Connects external current-sense resistor for optional high-side current monitoring. |
| OC | Overcurrent detection input | Stops all PWM outputs when voltage ≥ 0.25 V (typ.); enables fast fault response using external sense resistor. |
| COM | Motor center-tap connection | Required for sensorless back-EMF detection in star-connected BLDC motors. |
Key Features
| Feature | Design Value |
|---|---|
| Sensorless 3-phase commutation | Eliminates Hall sensors or encoders by detecting back-EMF zero-crossings across U/V/W phases. |
| Configurable lead angle | 0°, 15°, or 30° advance via LA pin; optimizes torque and efficiency across motor loads and speeds. |
| Adjustable overlapping commutation | 120°, 135°, or 150° conduction via SEL_LAP pin; reduces torque ripple and acoustic noise. |
| Dual-stage startup | DC excitation (TIP-set) followed by forced commutation (FST-set); ensures reliable start under load or low-VCC conditions. |
| Integrated oscillator & reference | 5.1 MHz internal oscillator (OSC_R/OSC_C configurable) and stable 5 V VREF output; reduces BOM count and layout complexity. |
Applications
| Power Tool Motor Control | HVAC Blower Drive |
|---|---|
Use Scenario: Cordless drill/driver requiring compact, sensorless BLDC drive with variable speed and bidirectional operation. IC Role / Device Role / Timing Role: TB6633FNG,EL acts as the primary motor driver, executing sensorless commutation, analog speed control (VSP), and direction switching (CW_CCW). Use Value: Enables battery-efficient operation with 0.6 A output capability, integrated protections (TSD, ISD), and no external position sensors-reducing system size and cost. | Use Scenario: Residential HVAC blower fan needing quiet, reliable speed control across wide airflow demands. IC Role / Device Role / Timing Role: TB6633FNG,EL provides 3-phase PWM drive with overlapping commutation (SEL_LAP) and lead angle tuning (LA) to minimize torque ripple and acoustic noise. Use Value: Delivers smooth low-speed operation and stable mid/high-speed performance using FG_OUT feedback and 20/40 kHz PWM switching-meeting HVAC acoustic requirements. |
| Automotive Auxiliary Pump | Industrial Fan Controller |
Use Scenario: 12 V automotive coolant or oil pump requiring robust startup, thermal resilience, and fault reporting. IC Role / Device Role / Timing Role: TB6633FNG,EL serves as the motor controller with thermal shutdown (165°C), UVLO (3.5 V), and FG_OUT for RPM monitoring in engine bay environments. Use Value: Withstands automotive transients and temperature extremes; built-in protections reduce need for external supervision circuitry and improve system MTBF. | Use Scenario: Factory automation cooling fan operating continuously in dusty, thermally constrained enclosures. IC Role / Device Role / Timing Role: TB6633FNG,EL drives the BLDC fan using sensorless commutation, adjustable forced commutation (FST), and restart logic (TRE) for recovery from stall events. Use Value: Automatic restart after overload or lock-up-enabled by TRE capacitor timing-ensures unattended operation without manual reset or host MCU intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase sensorless BLDC motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6615FTG,EL | Lacks FG_OUT tachometer output and forced commutation frequency selection; fixed 120° commutation only. | Suitable for simpler, lower-cost fans where speed feedback and fine-tuned startup are not required. | Choose TB6615FTG,EL only if FG_OUT, adjustable lead angle, or overlapping commutation are unnecessary. |
| DRV10983ZRTVT | Integrated MOSFETs (3× half-bridge), higher 2 A output; requires external VREF and lacks integrated oscillator. | Better suited for higher-power (>15 W) applications with PCB space for external components and thermal management. | Select DRV10983ZRTVT when output current > 0.6 A is needed and board area allows for discrete FET layout and external timing components. |
Compared with TB6615FTG,EL, the TB6633FNG,EL adds critical diagnostics (FG_OUT), flexible startup (TIP/TRE), and commutation tuning (LA/SEL_LAP); versus DRV10983ZRTVT, it trades higher integration (oscillator/VREF) for lower output current and external FET requirement-making it optimal for compact, mid-power sensorless BLDC systems.
Availability
TB6633FNG,EL is available at Aetrix Electronics and suitable for HVAC blowers, power tool motors, automotive auxiliary pumps, and industrial fans requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TB6633FNG,EL 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 and manufactures high-reliability semiconductor solutions for motor control, power management, and interface applications.
The TB6633FNG,EL belongs to Toshiba's Bi-CD family of motor driver ICs, engineered specifically for cost-sensitive, sensorless BLDC applications in consumer, industrial, and automotive auxiliary systems.
FAQ
What is the maximum motor supply voltage supported by the TB6633FNG,EL?
The TB6633FNG,EL supports a motor supply voltage (VM) up to 22 V under normal operating conditions, with an absolute maximum rating of 25 V. Exceeding 22 V risks violating operational specifications, particularly VREF accuracy and output ON-resistance stability. At VM ≤ 5.5 V, note that VREF output drops to 4.0–4.5 V and RON increases slightly-verify performance in low-voltage designs using TB6633FNG,EL datasheet Table "Operating Ranges".
How does the TB6633FNG,EL achieve sensorless commutation without Hall sensors?
The TB6633FNG,EL detects back-EMF zero-crossings across the U, V, and W motor phases during rotation to determine rotor position. It begins in forced commutation mode (using FST-selected frequency) until sufficient back-EMF is generated, then automatically transitions to sensorless mode. This requires the motor's center tap (COM pin) to be connected and relies on the internal comparator network-no external sensors or microcontroller intervention is needed for basic operation of TB6633FNG,EL.
Can the TB6633FNG,EL drive a 4-pole BLDC motor, and how many FG_OUT pulses occur per mechanical revolution?
Yes, the TB6633FNG,EL supports 4-pole BLDC motors. Since its FG_OUT generates 3 pulses per electrical degree, and one mechanical revolution equals 2 electrical revolutions for a 4-pole motor (i.e., 720° electrical), TB6633FNG,EL outputs 6 pulses per mechanical revolution. This resolution enables basic speed monitoring but may require interpolation in high-precision applications-confirm timing accuracy using TB6633FNG,EL's FG_OUT propagation delay specs in the Electrical Characteristics table.
What external components are mandatory for basic operation of the TB6633FNG,EL?
Mandatory external components for TB6633FNG,EL include: OSC_R (20 kΩ) and OSC_C (68 pF) for internal oscillator timing; TIP and TRE capacitors (0.1 μF and 1 μF respectively) for DC excitation and restart timing; and a motor center-tap connection to COM. Optional but recommended: shunt resistor on IR for current sensing, pull-down resistors on FPWM/CW_CCW/SEL_LAP for deterministic logic states, and bypass capacitors on VM and VREF per Toshiba's Application Circuit Example.
Does the TB6633FNG,EL support braking, and how is it activated?
Yes, the TB6633FNG,EL supports short-brake control via the BRAKE pin. When BRAKE is driven high (≥2.0 V), the U/V/W outputs enter a low-impedance short-circuit state, rapidly decelerating the motor. During normal operation, BRAKE must be held low or open (internal pull-down ensures safe default). Note that short-brake activation disables FG_OUT and halts commutation-verify thermal limits during repeated braking cycles using TB6633FNG,EL's PD vs. Ta derating curve.
TB6633FNG,EL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 24-LSSOP (0.220", 5.60mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (3)
- Interface:
- Analog
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 1A
- Voltage - Supply:
- 5.5V ~ 22V
- Voltage - Load:
- 5.5V ~ 22V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SSOP
TB6633FNG,EL FAQ
1.How can I place an order for TB6633FNG,EL through Aetrix?
Please submit a Request for Quotation (RFQ) for TB6633FNG,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 TB6633FNG,EL reliable?
The price and inventory of TB6633FNG,EL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB6633FNG,EL is usually 5 days.
3.What payment methods are accepted for TB6633FNG,EL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB6633FNG,EL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB6633FNG,EL?
TB6633FNG,EL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB6633FNG,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 TB6633FNG,EL?
For technical support, including TB6633FNG,EL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB6633FNG,EL requirements.
6.How does Aetrix verify that TB6633FNG,EL is sourced from the original manufacturer or authorized distributors?
All TB6633FNG,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 TB6633FNG,EL meets industry standards.
7.What is the process for return or replacement of TB6633FNG,EL?
All TB6633FNG,EL units undergo pre-shipment inspection (PSI). If there is an issue with TB6633FNG,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 TB6633FNG,EL part is unused and in its original packaging.
Return procedure for TB6633FNG,EL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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