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Toshiba Semiconductor and Storage TB67S103AFTG,EL
- Part No.:
- TB67S103AFTG,EL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
TB67S103AFTG,EL.pdf
- Description:
- IC MOTOR DRIVER BIPOLAR 48WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,592
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Product details
Overview
TB67S103AFTG from Toshiba Electronic Devices & Storage Corporation is a serial-in controlled bipolar stepping motor driver IC using PWM chopper current control, rated for 50 V and 4.0 A output, featuring Advanced Dynamic Mixed Decay (ADMD), 1/32 microstepping, and integrated thermal/overcurrent protection. It serves as the primary motor interface in compact motion control systems such as industrial automation actuators and precision medical pumps.
For engineers reviewing the TB67S103AFTG datasheet, TB67S103AFTG pinout, TB67S103AFTG application, or TB67S103AFTG equivalent, key selection criteria include its QFN48 package with exposed thermal pad, 48-pin serial control interface (SCLK/SDATA/SSET), dual-channel 4.0 A H-bridge output stage, and programmable decay mode configuration via BANK registers.
Technical Context
The TB67S103AFTG implements a BiCD monolithic architecture with integrated high-side and low-side MOSFETs (RDS(on) = 0.49 Ω typ.), enabling constant-current drive across full to 1/32-step resolutions. Its oscillator-based chopping frequency (adjustable via external RC on OSCM pin) supports precise current regulation at up to 100 kHz.
Serial bank configuration (BANK0–BANK7) allows dynamic setup of torque level (40–100%), decay mode (Mixed/Fast/Slow/Auto), MDT timing (12.5–50%), and error masking intervals. The LO open-drain error output signals TSD or ISD events, while ID pins support multi-device daisy-chaining via resistor-programmed 2-bit addressing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 10 V to 47 V - supports wide-input industrial and battery-powered motor systems |
| Continuous Output Current | 4.0 A per channel - enables direct drive of NEMA 17–23 stepper motors without external heatsinking under proper PCB thermal design |
| Microstepping Resolution | Full, half, quarter, 1/8, 1/16, 1/32 - provides smooth motion and reduced vibration in precision positioning applications |
| On-Resistance (HS+LS) | 0.49 Ω (typ.) - minimizes conduction loss and improves thermal efficiency at rated load |
| Chopping Frequency | 100 kHz (default) - balances EMI suppression and current ripple control for stable torque delivery |
| Error Detection | TSD + ISD with configurable masking time (1.25–5.0 μs) - prevents false triggers during transient overloads |
| Logic Supply | VCC = 4.75–5.25 V - compatible with standard 5 V microcontroller I/O without level-shifting |
Pinout & Package
Packaged in P-WQFN48-0707-0.50-003 (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad soldered to PCB GND for enhanced heat dissipation. Pin count: 48. Pin 1 marked by corner cut; four corner pins and exposed pad must be connected to GND plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTA+/OUTA−, OUTB+/OUTB− | H-bridge motor phase outputs | Dual 4.0 A bipolar outputs; each pair requires Kelvin routing to sense resistors RSA/RSB for accurate current feedback |
| RSA/RSB (dual pins each) | Current sense inputs | Low-impedance differential sensing path for PWM current regulation; must be short, symmetric traces to minimize noise |
| SCLK/SDATA/SSET | 3-wire serial interface | Configures all operating parameters (step mode, decay, torque) without external EEPROM; SSET acts as chip-select enable |
| LO | Open-drain error output | Asserts low on thermal shutdown or overcurrent; requires external 3.3 V or 5 V pull-up for system-level fault signaling |
| ID | 2-bit device address input | Resistor-programmed (GND/33k/100k/open) to select one of four unique IDs for multi-driver daisy-chain control |
| OSCM | Chopping oscillator tuning | RC network sets fOSCM (0.64–2.4 MHz), directly scaling fchop - critical for optimizing EMI vs. torque ripple trade-off |
Key Features
| Feature | Design Value |
|---|---|
| Advanced Dynamic Mixed Decay (ADMD) | Automatically adjusts fast/slow decay ratio based on real-time current error - eliminates manual decay tuning and ensures optimal torque across speed range |
| Programmable step resolution | Hardware-selectable full to 1/32-step via serial register BANK0 D2:D0 - enables fine-grained motion control without mechanical gear reduction |
| Integrated VCC regulator | Internal 5 V regulator powers logic circuitry from VM supply - eliminates need for external LDO and simplifies power tree |
| Multi-BANK serial configuration | Eight independent register banks (BANK0–BANK7) store motor drive, decay, error mask, and timing settings - supports complex motion profiles with minimal host CPU overhead |
| Thermal & overcurrent protection | Dedicated TSD and ISD circuits with user-configurable blanking times - prevents latch-up during stall or short-circuit while maintaining operational robustness |
Applications
| Industrial CNC Positioning Stage | Medical Infusion Pump Actuator |
|---|---|
Use Scenario: High-precision linear motion control in closed-loop CNC stages requiring sub-micron repeatability and low vibration. IC Role / Device Role / Timing Role: Primary stepper driver executing microstepped current commands from motion controller; synchronizes phase current with CLK edge timing. Use Value: 1/32-step resolution and ADMD reduce cogging torque and resonance, enabling smooth acceleration/deceleration without mechanical dampers. | Use Scenario: Silent, accurate syringe displacement in portable infusion pumps where acoustic noise and positional accuracy are critical. IC Role / Device Role / Timing Role: Bipolar motor driver delivering regulated 4.0 A peak current to 2-phase stepper; LO pin feeds fault status to pump safety MCU. Use Value: Integrated TSD/ISD protection meets IEC 60601-1 safety requirements; low RDS(on) minimizes self-heating during extended duty cycles. |
| Automated Optical Inspection (AOI) System | Lab Automation Liquid Handler |
Use Scenario: Fast, repeatable XY table movement in semiconductor AOI equipment scanning wafers at high throughput. IC Role / Device Role / Timing Role: Serial-controlled driver receiving step/direction commands via SCLK/SDATA; ENABLE pin enables rapid motor disable between inspection points. Use Value: 100 kHz chopping frequency suppresses audible noise during rapid indexing; daisy-chain ID addressing allows synchronized multi-axis control from single SPI bus. | Use Scenario: Multi-channel pipetting arm with independent Z-axis lift and X/Y gantry motion in clinical lab analyzers. IC Role / Device Role / Timing Role: Motor interface managing torque profile (via BANK0 D5:D4) and decay mode (BANK1 D7:D6) for varying load inertia across liquid handling steps. Use Value: Programmable torque (40–100%) prevents overshoot during tip ejection; Auto Decay mode adapts to changing fluid viscosity without firmware reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bipolar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN820 | 8-bit SPI interface; max 3.4 A; integrated current sense; no external RC oscillator tuning | Lacks 1/32 microstepping and ADMD; uses fixed 125 kHz chop frequency | Preferred for space-constrained designs needing integrated current sensing but lower peak current capability |
| MP6500 | 1.5 A max; 32-step microstepping; no serial register banks; analog VREF-based current setting | Requires external DAC or potentiometer for current control; no error masking or multi-BANK flexibility | Suitable for cost-sensitive, low-power applications where advanced decay tuning is unnecessary |
Compared with STSPIN820 and MP6500, the TB67S103AFTG delivers higher current drive (4.0 A), finer microstepping (1/32), and adaptive ADMD decay-making it optimal for demanding industrial motion systems requiring both precision and robustness.
Availability
TB67S103AFTG is available at Aetrix Electronics and suitable for industrial CNC positioning stages, medical infusion pump actuators, automated optical inspection systems, and lab automation liquid handlers requiring stable component supply and long-term production continuity.
Supply support for TB67S103AFTG 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 power management and motor control ICs for industrial, automotive, and medical applications using advanced BiCD processes.
The TB67S103AFTG belongs to Toshiba's serial-controlled stepper driver product line, engineered specifically for high-current, high-resolution motion control in space-constrained embedded systems with minimal external components.
FAQ
What is the maximum motor supply voltage supported by the TB67S103AFTG?
The TB67S103AFTG supports a motor power supply (VM) range of 10 V to 47 V, with absolute maximum rating at 50 V. Operation above 47 V risks exceeding safe operating area limits and triggering overvoltage protection. For reliable long-term use in industrial environments, design VM within 10–42 V with adequate derating for temperature and ripple.
How does the Advanced Dynamic Mixed Decay (ADMD) function in the TB67S103AFTG improve motor performance?
The ADMD function in the TB67S103AFTG dynamically adjusts the fast/slow decay ratio during each chopping cycle based on real-time current error relative to the target value. This eliminates fixed-decay compromises, reduces torque ripple across speed ranges, and suppresses resonance - resulting in smoother motion and higher positional accuracy without external tuning. The TB67S103AFTG implements ADMD exclusively in Auto Decay mode.
Can multiple TB67S103AFTG devices be controlled on a single serial bus?
Yes - the TB67S103AFTG supports daisy-chained serial control using its 2-bit ID pin. By configuring each device with unique resistor values (GND, 33 kΩ, 100 kΩ, or open), up to four TB67S103AFTG units can share SCLK, SDATA, and SSET lines. Only the device whose programmed ID matches the serial command's
What thermal design considerations apply to the TB67S103AFTG in its QFN48 package?
The TB67S103AFTG in P-WQFN48-0707-0.50-003 requires direct connection of its exposed thermal pad and all four corner pins to a dedicated internal or bottom-layer GND copper pour ≥ 200 mm². Thermal vias (≥ 8×0.3 mm) must connect the pad to inner GND planes. Avoid routing signal traces under NC pins or near high-current paths (VM, OUTx, RSA/RSB) to prevent coupling and localized heating that could trigger TSD.
How is microstepping resolution configured on the TB67S103AFTG?
Microstepping resolution on the TB67S103AFTG is set via BANK0 register bits D2:D0 using the serial interface (SCLK/SDATA/SSET). Valid values are: 001 = full step, 010 = half step (Type A), 011 = quarter step, 100 = half step (Type B), 101 = 1/8 step, 110 = 1/16 step, and 111 = 1/32 step. Standby mode (000) disables the oscillator and output stage for power saving. Configuration persists only while powered unless stored externally.
TB67S103AFTG,EL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- SPI
- Technology:
- Power MOSFET
- Step Resolution:
- 1 ~ 1/32
- Applications:
- General Purpose
- Current - Output:
- 3A
- Voltage - Supply:
- 4.75V ~ 5.25V
- Voltage - Load:
- 10V ~ 47V
- Operating Temperature:
- -20°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-WQFN (7x7)
TB67S103AFTG,EL FAQ
1.How can I place an order for TB67S103AFTG,EL through Aetrix?
Please submit a Request for Quotation (RFQ) for TB67S103AFTG,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 TB67S103AFTG,EL reliable?
The price and inventory of TB67S103AFTG,EL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB67S103AFTG,EL is usually 5 days.
3.What payment methods are accepted for TB67S103AFTG,EL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB67S103AFTG,EL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB67S103AFTG,EL?
TB67S103AFTG,EL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB67S103AFTG,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 TB67S103AFTG,EL?
For technical support, including TB67S103AFTG,EL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB67S103AFTG,EL requirements.
6.How does Aetrix verify that TB67S103AFTG,EL is sourced from the original manufacturer or authorized distributors?
All TB67S103AFTG,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 TB67S103AFTG,EL meets industry standards.
7.What is the process for return or replacement of TB67S103AFTG,EL?
All TB67S103AFTG,EL units undergo pre-shipment inspection (PSI). If there is an issue with TB67S103AFTG,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 TB67S103AFTG,EL part is unused and in its original packaging.
Return procedure for TB67S103AFTG,EL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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