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Toshiba Semiconductor and Storage TB67S158NG
- Part No.:
- TB67S158NG
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 24-SDIP (0.300", 7.62mm)
- Datasheet:
-
TB67S158NG.pdf
- Description:
- IC MTR DRV UNIPOLR 10-60V 24SDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,865
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Product details
Overview
TB67S158NG from Toshiba Electronic Devices & Storage Corporation is a constant-voltage-control DMOS stepper motor driver IC for unipolar 2-phase motors, supporting full parallel input mode (MODE1), delivering up to 80 V output voltage and 1.5 A per phase, with integrated thermal shutdown (TSD), overcurrent detection (ISD), and open-drain ERR output - used in industrial automation motion control systems.
For engineers reviewing the TB67S158NG datasheet, TB67S158NG pinout, TB67S158NG application, or TB67S158NG equivalent, this page delivers verified functional identity, confirmed MODE1 pin mapping, real-world protection behavior (TSD at 160°C typ., ISD at 3.0 A typ.), and validated alternative options for dual-motor unipolar drive applications.
Technical Context
The TB67S158NG implements a BiCD-process-based DMOS output stage with two independent 2-phase unipolar motor drive channels (A/B and C/D), each with N-channel H-bridge topology and dedicated VCOM pins (VCOM_AB, VCOM_CD). It operates in full parallel mode (MODE=L) where IN_A1–IN_D2 directly control individual output transistors like a transistor array.
Internal circuitry includes a VM-powered VCC regulator enabling single-supply operation, POR and VMR monitoring, and open-drain fault signaling via ERR (active-low on TSD/ISD). Protection logic clears only upon VM reapplication or STBY assertion - no automatic recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Rating | 80 V max - supports high-back-EMF unipolar stepper motors without external clamping diodes |
| Continuous Output Current | 1.5 A per phase - enables direct drive of medium-torque 2-phase unipolar motors |
| On-Resistance (RON) | 0.5 Ω typ. - reduces conduction loss and self-heating during sustained 1.0–1.5 A operation |
| Thermal Shutdown Threshold | 160 °C typ. (Tj) - disables all outputs to prevent permanent junction damage under overload |
| Overcurrent Detection Threshold | 3.0 A typ. - latches off output transistors within 4.0 μs to limit fault energy |
| Logic Input Frequency | 150 kHz max - allows fast step-rate control in full parallel mode without timing violation |
| Package Thermal Resistance | 14.2 mW/°C derating above 25 °C - requires PCB copper area and thermal vias for >1 W dissipation |
Pinout & Package
P-SDIP24-0723-1.78-001: 24-pin plastic small-outline dual in-line package (SDIP), 0.723 inch body width, 1.78 mm thickness, 1.4 g typical weight, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 22, 23 | OUT_C−, OUT_C+, OUT_D+, OUT_D− | Motor phase C/D output terminals - connect to unipolar stepper coil ends; require external flyback path via VCOM |
| 11–12, 14–15 | OUT_A+, OUT_A−, OUT_B−, OUT_B+ | Motor phase A/B output terminals - form two independent H-bridge legs per phase pair |
| 13, 24 | PGND_AB, PGND_CD | Power ground returns for respective phase pairs - must be routed separately to minimize ground bounce |
| 16, 21 | VCOM_AB, VCOM_CD | Common return for phase A/B and C/D center taps - connects to motor center taps or external supply rail |
| 3–10 | IN_A1–IN_D2 | Direct logic inputs for full parallel mode - each pair controls one output transistor (e.g., IN_A1 = OUT_A+ ON/OFF) |
| 17 | MODE | Interface selection - low = full parallel mode (TB67S158NG default configuration per J-column context) |
| 18 | VM | Main motor power supply input - supplies both DMOS outputs and internal VCC regulator (no separate VCC pin required) |
| 19 | ERR | Open-drain fault indicator - pulls low on TSD or ISD activation; requires external pull-up to 3.3 V or 5 V |
| 20 | LGND | Logic ground reference - must be connected to system logic ground, isolated from PGND traces |
Key Features
| Feature | Design Value |
|---|---|
| Dual 2-phase unipolar motor control | One TB67S158NG drives two independent stepper motors - reduces BOM count and PCB footprint vs. discrete drivers |
| Single-supply operation | VM-only power architecture eliminates need for auxiliary VCC rail - simplifies power design and reduces component count |
| Integrated protection circuits | TSD (160°C), ISD (3.0 A), and POR ensure safe startup and fault containment without external supervision logic |
| Full parallel interface (MODE1) | Direct transistor-level control via IN_A1–IN_D2 - enables deterministic timing and eliminates serial latency in motion-critical loops |
| Low RON DMOS outputs | 0.5 Ω typical on-resistance minimizes I²R heating at 1.5 A - extends continuous duty cycle in compact enclosures |
Applications
| Industrial CNC Positioning | Medical Infusion Pump Actuation |
|---|---|
Use Scenario: Precise open-loop positioning of X/Y axes in benchtop CNC mills using 2-phase unipolar stepper motors. IC Role / Device Role / Timing Role: TB67S158NG acts as dual-axis motor driver with full parallel step/dir interface - accepts real-time pulse trains from MCU GPIOs. Use Value: Enables synchronized dual-motor control from one IC while maintaining sub-millisecond step response and thermal safety under 1.2 A sustained load. |
Use Scenario: Controlled peristaltic motion in portable IV infusion pumps requiring silent, repeatable microstep-compatible actuation. IC Role / Device Role / Timing Role: TB67S158NG provides constant-voltage excitation for unipolar stepper in 1-2-phase mode - driven by low-jitter MCU timer outputs. Use Value: Integrated TSD and ISD eliminate need for external current sensing or thermal sensors - critical for certified medical device reliability and size constraints. |
| Automated Test Equipment (ATE) Handlers | Lab Automation Robotic Arms |
Use Scenario: High-cycle pick-and-place motion in semiconductor ATE handlers using compact unipolar steppers for Z-axis lift and rotary indexing. IC Role / Device Role / Timing Role: TB67S158NG serves as dual-channel indexer driver in full parallel mode - receives step pulses from FPGA I/O banks with minimal skew. Use Value: 150 kHz logic input frequency supports >10 kpps step rates; low RON ensures stable torque delivery across ambient temperature range (−20 to 85°C). |
Use Scenario: Multi-joint lab robots requiring coordinated motion of gripper, tilt, and extension axes using cost-optimized unipolar stepper motors. IC Role / Device Role / Timing Role: TB67S158NG functions as distributed motor driver node - controlled via isolated GPIO lines from central motion controller. Use Value: ERR pin provides centralized fault reporting without additional communication overhead; single VM supply simplifies power tree in battery-backed systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-unipolar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6600HG | Higher voltage (40 V max), lower current (3.5 A), no integrated TSD/ISD - requires external protection circuitry | Targeted at higher-current but lower-voltage bipolar stepper systems; lacks VCOM-based unipolar support | Choose TB6600HG only if driving bipolar motors with external H-bridges and separate thermal monitoring |
| ULN2003A | 7-channel Darlington array, 500 mA per channel, no protection, no VCC regulator - discrete transistor replacement | Supports basic unipolar drive but cannot sustain 1.5 A or 80 V; no fault signaling or thermal management | Use ULN2003A only for low-power (<300 mA), non-safety-critical unipolar loads where cost is primary constraint |
Compared with TB67S158NG, TB6600HG offers higher current but lacks integrated protection and unipolar-specific VCOM architecture, while ULN2003A provides basic switching at much lower ratings and zero fault intelligence - making TB67S158NG the only option combining 80 V/1.5 A unipolar drive, full protection, and single-supply simplicity.
Availability
TB67S158NG is available at Aetrix Electronics and suitable for industrial CNC positioning, medical infusion pump actuation, automated test equipment handlers, and lab automation robotic arms requiring stable component supply and long-term production continuity.
Supply support for TB67S158NG 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 analog and power ICs for industrial, automotive, and consumer applications, with emphasis on integration, protection, and thermal robustness.
The TB67S158NG belongs to Toshiba's Bi-CD DMOS stepper driver family, engineered specifically for cost-sensitive, space-constrained unipolar stepper motor control in factory automation and precision instrumentation.
FAQ
What is the maximum motor supply voltage supported by the TB67S158NG?
The TB67S158NG supports a maximum motor supply voltage (VM) of 80 V, as specified in its absolute maximum ratings. This rating applies to continuous DC operation and must not be exceeded even momentarily. Operation above 60 V (the upper limit of the recommended operating range) requires careful thermal design and back-EMF mitigation, especially during rapid deceleration or reversal.
Does the TB67S158NG require an external VCC supply?
No, the TB67S158NG does not require an external VCC supply. It incorporates an internal VCC regulator powered solely from the VM pin, enabling true single-supply operation. The internal regulator generates the necessary logic voltage for control circuitry, eliminating the need for a separate 3.3 V or 5 V rail - a key advantage in space- and cost-constrained designs.
How does the ERR pin behave during thermal or overcurrent faults?
The ERR pin on the TB67S158NG is an open-drain output that remains high (pulled up externally) during normal operation and pulls low when either the thermal shutdown (TSD) or overcurrent detection (ISD) circuit activates. The fault condition persists until VM is cycled or the STBY pin is asserted - there is no automatic reset, ensuring faults are actively acknowledged by the host controller.
Can the TB67S158NG drive bipolar stepper motors?
No, the TB67S158NG is designed exclusively for unipolar stepper motors. Its output architecture uses N-channel DMOS transistors with dedicated VCOM pins (VCOM_AB, VCOM_CD) to interface with motor center taps - a topology incompatible with standard bipolar (4-wire) stepper winding configurations. Attempting bipolar connection will result in incorrect phasing and potential device damage.
What is the recommended PCB layout practice for the PGND and LGND connections on the TB67S158NG?
The TB67S158NG requires strict separation of PGND_AB/PGND_CD (power ground returns for motor current paths) and LGND (logic ground reference). These grounds must be connected at a single point - typically near the VM decoupling capacitor - to avoid noise coupling. Power ground traces must be wide and short, while logic ground should route away from high-dI/dt motor paths to prevent false triggering of input logic or ERR misreporting.
TB67S158NG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 24-SDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Motor Type - Stepper:
- Unipolar
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (8)
- Interface:
- Parallel
- Technology:
- DMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 1.5A
- Voltage - Supply:
- 10V ~ 60V
- Voltage - Load:
- 10V ~ 60V
- Operating Temperature:
- -20°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-SDIP
TB67S158NG FAQ
1.How can I place an order for TB67S158NG through Aetrix?
Please submit a Request for Quotation (RFQ) for TB67S158NG 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 TB67S158NG reliable?
The price and inventory of TB67S158NG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB67S158NG is usually 5 days.
3.What payment methods are accepted for TB67S158NG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB67S158NG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB67S158NG?
TB67S158NG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB67S158NG 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 TB67S158NG?
For technical support, including TB67S158NG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB67S158NG requirements.
6.How does Aetrix verify that TB67S158NG is sourced from the original manufacturer or authorized distributors?
All TB67S158NG 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 TB67S158NG meets industry standards.
7.What is the process for return or replacement of TB67S158NG?
All TB67S158NG units undergo pre-shipment inspection (PSI). If there is an issue with TB67S158NG, 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 TB67S158NG part is unused and in its original packaging.
Return procedure for TB67S158NG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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