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Toshiba Semiconductor and Storage TB6585AFTGC8,EL
- Part No.:
- TB6585AFTGC8,EL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
TB6585AFTGC8,EL.pdf
- Description:
- IC MOTOR DRIVER 4.5V-42V 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,341
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Product details
Overview
TB6585AFTGC8,EL from Toshiba is a 3-phase sine-wave PWM driver IC for brushless DC (BLDC) motors, integrating Hall amplifiers, lead-angle control, current-limit protection, and rotation pulse output. It operates from 4.5 V to 42 V motor supply, delivers up to 1.8 A per phase, features 0.7 Ω typical high-side + low-side ON-resistance, and supports automatic 120°/180° commutation switching - used in fan, pump, and power tool motor control systems.
For engineers reviewing the TB6585AFTGC8,EL datasheet, TB6585AFTGC8,EL pinout, TB6585AFTGC8,EL application, or TB6585AFTGC8,EL equivalent, key selection considerations include Hall-input hysteresis (±8 mV typ.), FG pulse resolution (3 pulses/electrical degree), LA pin voltage-to-lead-angle mapping (0–29° over 0–3.0 V), thermal shutdown threshold (165°C typ.), and Vrefout stability (4.4 V ±0.4 V at 20 mA).
Technical Context
The TB6585AFTGC8,EL implements closed-loop BLDC control using internal 5-bit ADC-based lead-angle correction, triangular-wave carrier generation (adjustable via OSC/R and OSC/C), and modulated waveform synthesis synchronized to Hall zero-crossings every 60 electrical degrees. Its automatic commutation mode switch occurs at 2.5 Hz Hall input frequency, transitioning from square-wave (120°) startup to sine-wave PWM (180°) operation.
It integrates analog front-end functions including Hall differential amplification with 1.5–3.5 V common-mode range, shunt-current sensing (RS input, 0.5 V threshold), IV output (0.5–3.5 V, gain = 1.2), and peak-hold/low-pass filtering (PH/LPF pins) for robust lead-angle controller feedback - all operating within a single QFN48 package with separate power and signal ground domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Motor Supply Range | VM = 4.5 V to 42 V - supports 12 V, 24 V, and 36 V BLDC systems without external regulators |
| Output Current Rating | IOUT = 1.2 A (typ.), 1.8 A (max) - sufficient for mid-power fans and small pumps |
| Total Output ON-Resistance | RON(H+L) = 0.7 Ω (typ.) - limits conduction loss to ~1.0 W at 1.2 A per phase |
| Reference Voltage Output | Vrefout = 4.4 V ±0.4 V at 20 mA - powers external RC networks and serves as analog reference for VSP, LA, LL, UL |
| FG Pulse Resolution | 3 pulses per electrical degree - enables precise speed feedback; e.g., 12 ppr for 8-pole motor |
| Lead-Angle Control Range | 0° to 29° via LA pin (0–3.0 V) - compensates for back-EMF phase lag across speed/load conditions |
| Thermal Shutdown Threshold | TSD = 165°C (typ.) - protects against sustained overload or poor heatsinking |
| Hall Input Hysteresis | VhysH = ±8 mV (typ.) - ensures noise-immune commutation timing under EMI-prone motor environments |
Pinout & Package
Package: QFN48-P-0707-0.50 (7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad). Pin count: 48, with 16 no-connect (N.C.) terminals. Thermal resistance Rth(j-a) = 32°C/W on standard double-layer board (100 mm × 100 mm × 1.5 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| U / V / W | 3-phase motor drive outputs | High-current gate drivers (1.8 A max) for external N-channel MOSFETs or integrated half-bridges |
| HUP / HUM / HVP / HVM / HWP / HWM | Hall sensor differential inputs | Accepts 50 mVpp minimum Hall signals; 1.5–3.5 V common-mode range with ±8 mV hysteresis |
| RS | Overcurrent detection input | Disables outputs when shunt voltage ≥ 0.5 V (typ.); digital filter rejects <1 µs noise spikes |
| VSP | Speed control analog input | 0.5 V threshold start; linear duty scaling up to Vrefout (4.4 V) = 100% PWM |
| LA / LL / UL | Lead-angle control inputs | LA sets angle (0–29°); LL/UL clamp bounds - all referenced to Vrefout, not VM or GND |
| FG | Rotation pulse output | Open-drain CMOS output (Vrefout-referenced), 3 pulses per electrical degree, 12 ppr for 8-pole motor |
| Vrefout | Internal reference voltage source | 4.4 V ±0.4 V @ 20 mA; requires 0.001 µF ceramic capacitor placed adjacent to pin |
| VM / P-GND / S-GND | Power domains | VM supplies motor drivers; P-GND carries high di/dt return; S-GND isolates analog/signal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Sine-wave PWM generation | Modulated waveform synthesized from Hall zero-crossings and updated every 60° electrical - eliminates torque ripple vs. trapezoidal drive |
| Automatic commutation mode switching | Seamlessly transitions from 120° square-wave startup to 180° sine-wave operation at 2.5 Hz Hall frequency - ensures reliable start under load |
| Programmable lead-angle correction | 0–29° adjustment via LA pin voltage (0–3.0 V) or current-sensing feedback (IV → Gin+/Gin− → PH/LPF) - compensates for winding inductance delay |
| Integrated anti-lock protection | Detects stalled rotor after 500 ms (typ.) via TR capacitor; ML pin selects auto-restart (ML=H) or power-cycle recovery (ML=L/O) |
| Robust Hall interface | 6-pin differential Hall input with 1.5–3.5 V common-mode range, ±8 mV hysteresis, and internal bias - tolerates noisy motor environments without external comparators |
| On-chip reference and filtering | Vrefout (4.4 V) powers analog controls; dedicated PH and LPF pins enable active peak-hold and low-pass filtering for lead-angle loop stability |
Applications
| Computer Cooling Fan Control | Automotive HVAC Blower |
|---|---|
Use Scenario: Variable-speed 12 V or 24 V axial fan in server chassis or desktop PC, requiring quiet operation and precise RPM regulation. IC Role / Device Role / Timing Role: TB6585AFTGC8,EL acts as the primary BLDC motor controller, accepting tachometer feedback via FG pin and interpreting Hall signals to generate smooth sine-wave PWM for U/V/W phases. Use Value: Reduces acoustic noise by >10 dB vs. square-wave drive; enables 50–100% RPM control via 0.5–4.4 V VSP input; FG output provides closed-loop speed verification. | Use Scenario: 24 V cabin blower motor in automotive HVAC system, subject to wide temperature (-30°C to 85°C) and EMI exposure. IC Role / Device Role / Timing Role: TB6585AFTGC8,EL serves as the Hall-commutated driver with integrated thermal shutdown (165°C) and undervoltage lockout (VM < 3.5 V), managing motor acceleration/deceleration via CW/CCW and RESET pins. Use Value: Eliminates need for external current-sense op-amps and comparator circuits; lead-angle control maintains efficiency across airflow loads; anti-lock restart prevents system freeze during duct blockage. |
| Industrial Air Pump Driver | Power Tool Motor Controller |
Use Scenario: 36 V portable air compressor or vacuum pump with intermittent duty cycle and high starting torque demand. IC Role / Device Role / Timing Role: TB6585AFTGC8,EL executes automatic 120°→180° commutation transition, uses RS pin for overcurrent cutoff during stall, and leverages IV output for real-time current monitoring. Use Value: Enables soft-start via VSP ramping; FG pulses feed microcontroller for pressure-based speed modulation; thermal shutdown prevents MOSFET failure during extended runtimes. | Use Scenario: Cordless drill or angle grinder with 18–42 V battery pack, requiring bidirectional control, stall protection, and high-efficiency torque delivery. IC Role / Device Role / Timing Role: TB6585AFTGC8,EL interprets Hall signals from embedded rotor sensors, applies LA-based lead-angle correction for maximum torque-per-amp, and disables outputs via RESET during trigger release. Use Value: CW/CCW pin enables instant direction reversal without MCU intervention; 0.7 Ω RON minimizes heat generation at 1.2 A continuous; ML-selectable anti-lock allows safe restart after bit binding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase BLDC motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0A | Integrated 32-bit ARM Cortex-M0 MCU + gate drivers; requires firmware development; no native Hall amplifier - external signal conditioning needed | Best for designs needing programmable commutation profiles, field-oriented control (FOC), or sensorless startup | Choose STSPIN32F0A only if firmware flexibility outweighs added BOM cost and development time; TB6585AFTGC8,EL offers plug-and-play Hall-based control. |
| MP6532GQ-Z | Monolithic 3-phase driver with Hall inputs; lower VM range (4.5–28 V); 1.5 A max output; no FG output or lead-angle control | Suitable for compact, cost-sensitive 12–24 V fans where speed feedback and advanced angle tuning are unnecessary | Select MP6532GQ-Z for space-constrained, low-voltage applications without FG monitoring or dynamic lead-angle needs; TB6585AFTGC8,EL supports wider voltage and richer diagnostics. |
Compared with STSPIN32F0A and MP6532GQ-Z, the TB6585AFTGC8,EL uniquely combines Hall amplification, FG pulse generation, analog lead-angle control, and anti-lock restart in a single QFN48 package - delivering turnkey sine-wave BLDC control without MCU dependency or external analog support components.
Availability
TB6585AFTGC8,EL is available at Aetrix Electronics and suitable for computer cooling, automotive HVAC, industrial air pump, and power tool motor control applications requiring stable component supply, long-lifecycle assurance, and production-ready qualification.
Supply support for TB6585AFTGC8,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 high-reliability semiconductor solutions for motor control, power management, and industrial automation, with decades of expertise in Bi-CMOS process technology and motor driver integration.
The TB6585AFTGC8,EL belongs to Toshiba's TB65xx family of Hall-effect BLDC drivers, engineered specifically for cost-effective, low-noise, and thermally robust 3-phase motor control in consumer, automotive, and industrial equipment.
FAQ
What is the function of the RS pin on the TB6585AFTGC8,EL?
The RS pin on the TB6585AFTGC8,EL is the overcurrent protection input. When the voltage across an external shunt resistor reaches 0.5 V (typ.), the TB6585AFTGC8,EL disables all U/V/W outputs to prevent damage. This protection activates every carrier cycle, allowing brief current surges while blocking sustained overloads. The RS pin includes a 1 µs digital filter to reject noise spikes, ensuring reliable tripping only on genuine fault conditions.
How does the TB6585AFTGC8,EL determine when to switch from square-wave to sine-wave commutation?
The TB6585AFTGC8,EL monitors Hall signal frequency to trigger commutation mode switching. Below 2.5 Hz, it uses 120° square-wave drive for reliable startup torque. At or above 2.5 Hz, it switches automatically to 180° sine-wave PWM drive using internally generated modulated waveforms synchronized to Hall zero-crossings. This transition is fully autonomous - no external control or configuration is required for the TB6585AFTGC8,EL to execute it.
Can the TB6585AFTGC8,EL operate without connecting external capacitors to the Vrefout and VM pins?
No - the TB6585AFTGC8,EL requires specific external capacitors for stable operation. A 0.001 µF ceramic capacitor must be placed directly at the Vrefout pin to prevent oscillation, and a bulk capacitor (e.g., 22 µF) is recommended near the VM pin to suppress motor-switching transients. Omitting these capacitors risks instability, erratic Hall detection, or premature thermal shutdown. These requirements are explicitly stated in Toshiba's application notes and block diagram notes for the TB6585AFTGC8,EL.
What is the purpose of the FG output on the TB6585AFTGC8,EL, and how is its resolution calculated?
The FG output on the TB6585AFTGC8,EL is a rotation speed feedback signal generating 3 pulses per electrical degree. For an 8-pole motor (4 pole pairs), one mechanical revolution equals 4 × 360° = 1440 electrical degrees, yielding 1440 × 3 = 4320 FG pulses per revolution (ppr). This high-resolution output enables precise closed-loop speed control in microcontroller-based systems - the TB6585AFTGC8,EL itself does not interpret FG but provides it as a diagnostic and control resource.
Does the TB6585AFTGC8,EL support bidirectional motor control, and how is direction selected?
Yes, the TB6585AFTGC8,EL supports bidirectional control via the CW/CCW pin. A logic-low input (≤0.8 V) configures clockwise rotation with 180° sine-wave commutation when Hall frequency ≥2.5 Hz; logic-high (≥2.0 V) selects counterclockwise. Direction reversal is instantaneous and does not require motor stoppage. The TB6585AFTGC8,EL also detects reverse rotation autonomously and adjusts commutation timing accordingly - enabling full four-quadrant operation in compatible motor systems.
TB6585AFTGC8,EL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (3)
- Interface:
- Parallel
- Technology:
- Bi-CMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 1.2A
- Voltage - Supply:
- 4.5V ~ 42V
- Voltage - Load:
- 4.5V ~ 42V
- Operating Temperature:
- -30°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (7x7)
TB6585AFTGC8,EL FAQ
1.How can I place an order for TB6585AFTGC8,EL through Aetrix?
Please submit a Request for Quotation (RFQ) for TB6585AFTGC8,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 TB6585AFTGC8,EL reliable?
The price and inventory of TB6585AFTGC8,EL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB6585AFTGC8,EL is usually 5 days.
3.What payment methods are accepted for TB6585AFTGC8,EL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB6585AFTGC8,EL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB6585AFTGC8,EL?
TB6585AFTGC8,EL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB6585AFTGC8,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 TB6585AFTGC8,EL?
For technical support, including TB6585AFTGC8,EL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB6585AFTGC8,EL requirements.
6.How does Aetrix verify that TB6585AFTGC8,EL is sourced from the original manufacturer or authorized distributors?
All TB6585AFTGC8,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 TB6585AFTGC8,EL meets industry standards.
7.What is the process for return or replacement of TB6585AFTGC8,EL?
All TB6585AFTGC8,EL units undergo pre-shipment inspection (PSI). If there is an issue with TB6585AFTGC8,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 TB6585AFTGC8,EL part is unused and in its original packaging.
Return procedure for TB6585AFTGC8,EL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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