Toshiba Semiconductor and Storage TB67H452FTG,EL
- Part No.:
- TB67H452FTG,EL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
TB67H452FTG,EL.pdf
- Description:
- IC MOTOR DRIVER 48QFN
- Quantity:
- Payment:

- Shipping:

Inventory:2,000
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Product details
Overview
TB67H452FTG from Toshiba Electronic Devices & Storage Corporation is a monolithic PWM chopper-type 4-channel H-bridge motor driver IC designed for flexible multi-motor control in battery-powered systems. It supports four brushed DC motors, two bipolar stepper motors, or combinations including Large Mode (e.g., dual high-current DC or single high-current stepper), with 40 V max output withstand voltage, 3.5 A peak output current (DC S-mode), and integrated VCC regulator eliminating need for external 5 V logic supply.
For engineers reviewing the TB67H452FTG datasheet, TB67H452FTG pinout, TB67H452FTG application, or TB67H452FTG equivalent, key selection considerations include mode-selectable H-bridge configuration (S/L), digital/analog tBLANK control per channel pair, mixed-decay current regulation, over-current/thermal protection, and QFN48 package thermal performance in compact motor drive designs.
Technical Context
The TB67H452FTG implements a CD-process monolithic architecture with four independently configurable H-bridges, each supporting PWM chopper operation at 40–150 kHz via external RC on OSCM. Its output stage uses low-Ron MOSFETs (0.6 Ω typical in Small Mode, 0.3 Ω in Large Mode) and integrates current-sense amplifiers with RS pins for closed-loop constant-current control.
Motor drive modes are selected via MODE0/MODE1/MODE2 pins and determine functional mapping of IN/PWM/CLK/ENABLE/CW_CCW pins - e.g., Stepper(S)×2 uses AB/CD as independent stepper units with step resolution set by AB_MODE1/2 and CD_MODE1/2, while DC(L)×2 combines A+B and C+D bridges to double current capability and halve ON-resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Withstand Voltage | 40 V - Enables use with 7.2 V to 38 V battery or supply rails without external clamping. |
| Peak Output Current (DC S-mode) | 3.5 A - Supports medium-power brushed DC motors up to ~24 V, 3.5 A per channel. |
| ON-Resistance (Small Mode) | 0.6 Ω (typ.) - Limits conduction loss to ≤2.1 W per bridge at 3.5 A, critical for thermal management. |
| ON-Resistance (Large Mode) | 0.3 Ω (typ.) - Achieved by paralleling H-bridges; doubles current capacity while halving I²R loss. |
| Chopping Frequency Range | 40–150 kHz - Set externally via OSCM RC network; higher frequencies reduce audible noise and improve current regulation fidelity. |
| VCC Regulator Output | 5.0 V (4.5–5.5 V) - Powers internal logic and eliminates need for external 5 V rail, simplifying system BOM. |
| Thermal Shutdown Threshold | 150 °C (typ.) - Latched shutdown protects against sustained overload; recovery requires VM power cycle. |
| Over-Current Detection Threshold | 4.0 A (typ.) - Triggers ISD protection when sensed current exceeds threshold; blanking prevents false trips during switching transients. |
Pinout & Package
Package: QFN48 (7.0 mm × 7.0 mm, 0.5 mm pitch, exposed thermal pad). Pin assignment varies by motor drive mode; documentation specifies functions for DC(S)×4 mode as baseline. All GND pins must be connected to a single-point PCB ground plane with dedicated thermal pad soldering for heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT_A+ / OUT_A− OUT_B+ / OUT_B− OUT_C+ / OUT_C− OUT_D+ / OUT_D− | H-bridge output terminals | Drive motor windings directly; polarity and enable state determined by mode-specific IN/PWM/CLK signals. |
| RS_A / RS_B / RS_C / RS_D | Current sense resistor connection | Connect low-side sense resistors (typically 0.1 Ω); voltage across RS sets output current limit via VREF scaling. |
| VREF_A / VREF_B / VREF_C / VREF_D | Reference voltage input | Set per-channel current limit; internal 1/5 attenuation yields 0.6–0.8 V at RS pins for 1–2 A range. |
| MODE0 / MODE1 / MODE2 | Motor drive mode select | 3-bit code selects among six configurations (e.g., Stepper(S)×2, DC(L)×2); fixed at power-on; no dynamic switching. |
| D_tBLANK_AB / D_tBLANK_CD | Digital blanking time control | Selects 0× or 4× OSC clock blanking window per channel pair to suppress false ISD triggers during PWM transitions. |
| SLEEP | Logic power control | Puts VCC regulator in standby (10 µA ICC), disabling all logic; wake-up latency <1 ms after high assertion. |
| ALERT | Open-drain fault indicator | Pulls low on ISD or TSD activation; requires external 10 kΩ pull-up to VCC for active-low signaling. |
| OSCM | Oscillator frequency setting | RC network (e.g., 120 kΩ + 270 pF) sets chopping frequency reference; fOSCM ≈ 1.6 MHz → fchop ≈ 100 kHz. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic 4-channel H-bridge integration | Eliminates discrete gate drivers and external logic, reducing board area and component count for multi-axis motion control. |
| Mode-selectable bridge combination (Large/Small) | Enables scalable current delivery: 3.5 A per channel (S) or 5.0 A per combined pair (L), adapting to load requirements without hardware change. |
| Integrated VCC regulator (5 V ±0.5 V) | Removes dependency on external 5 V supply, simplifying power architecture and improving system-level reliability. |
| Dual-blanking ISD protection (analog + digital) | Prevents false over-current trips during PWM edges using configurable tBLANK timing, ensuring robust operation under dynamic loads. |
| Mixed-decay current control (37.5% / 12.5%) | Optimizes torque ripple and power efficiency in stepper applications by dynamically balancing slow/fast decay phases. |
| Thermal shutdown with latched fault | Protects against sustained overheating; requires VM power cycle to reset, preventing automatic restart into fault condition. |
Applications
| Industrial CNC Positioning Stage | Medical Infusion Pump Drive |
|---|---|
Use Scenario: Precise open-loop positioning of X/Y/Z axes using bipolar stepper motors with microstepping. IC Role / Device Role / Timing Role: TB67H452FTG operates in Stepper(S)×2 mode, accepting CLK/ENABLE/CW_CCW inputs and regulating phase current via VREF and RS feedback to maintain torque across speed range. Use Value: Full/half/quarter-step resolution control enables sub-micron positioning accuracy; integrated mixed-decay reduces vibration and acoustic noise during acceleration/deceleration. | Use Scenario: Controlled peristaltic roller actuation in portable infusion devices powered by 7.2 V Li-ion batteries. IC Role / Device Role / Timing Role: TB67H452FTG runs in DC(L)×2 mode, driving dual brushed DC motors with PWM speed control and real-time current limiting to prevent occlusion-induced stall damage. Use Value: 0.3 Ω Large Mode ON-resistance minimizes voltage drop and heat generation, extending battery life and enabling compact thermal design in handheld enclosures. |
| Automotive HVAC Blower Control | Robotics Joint Actuator Module |
Use Scenario: Multi-speed cabin air blower requiring smooth RPM transition and stall protection across 12 V automotive supply variations. IC Role / Device Role / Timing Role: TB67H452FTG configured in DC(S)×4 mode drives four independent blowers or fans, using external PWM inputs and ALERT fault reporting to ECU. Use Value: 40 V absolute max rating accommodates load-dump transients; integrated VMR detection ensures safe operation during cold-crank (6.3 V min VM). | Use Scenario: Compact servo module integrating position sensing, control logic, and dual-axis motor drive for collaborative robot joints. IC Role / Device Role / Timing Role: TB67H452FTG operates in Stepper(S)×1 + DC(S)×2 mode, driving one precision stepper for joint angle and two DC motors for auxiliary functions like brake release. Use Value: Single-chip consolidation reduces interconnect complexity and EMI; QFN48 thermal pad enables direct heatsinking to aluminum chassis for continuous 2 A operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-channel H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN840 | Single H-bridge, 4.5 A peak, integrated current sense, SPI interface; no mode-selectable bridge combining. | Targeted at single-axis stepper control with advanced diagnostics; lacks native multi-motor flexibility of TB67H452FTG. | Choose STSPIN840 when SPI-based closed-loop tuning and compact single-axis integration outweigh need for multi-motor configurability. |
| DRV8876N | 2-channel H-bridge, 6.5 A peak, adaptive decay, no VCC regulator; requires external 3.3 V/5 V logic supply. | Optimized for high-current brushed DC drive with fast decay recovery; lacks stepper-specific features (CLK/ENABLE/CW_CCW). | Choose DRV8876N when driving high-torque DC motors where peak current >5 A and adaptive decay are critical, and external logic supply is acceptable. |
Compared with STSPIN840 and DRV8876N, the TB67H452FTG uniquely supports six distinct motor drive configurations-including parallel bridge combining-within a single QFN48 package, while integrating its own 5 V regulator and offering per-channel VREF-based current programming without external DACs.
Availability
TB67H452FTG is available at Aetrix Electronics and suitable for industrial CNC positioning stages, medical infusion pump drives, automotive HVAC blower control, and robotics joint actuator modules requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TB67H452FTG 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 is a Japanese semiconductor manufacturer specializing in power management, motor control, and analog ICs for industrial, automotive, and consumer applications.
The TB67H452FTG belongs to Toshiba's TB67H series of high-voltage, high-current motor drivers, designed specifically for space-constrained, battery-powered motion control systems requiring flexible multi-motor topology and integrated protection.
FAQ
What motor drive modes does the TB67H452FTG support?
The TB67H452FTG supports six motor drive modes defined by MODE0/MODE1/MODE2 pin states: Stepper(S)×2, DC(L)×2, Stepper(L)×1, DC(S)×4, Stepper(S)×1 + DC(L)×1, and Stepper(S)×1 + DC(S)×2. Each mode reconfigures pin functionality (e.g., CLK vs. PWM), H-bridge pairing, and current capability. Mode selection is static and must be set before power-on; dynamic switching is not supported.
How does the TB67H452FTG achieve lower ON-resistance in Large Mode?
In Large Mode (e.g., DC(L)×2 or Stepper(L)×1), the TB67H452FTG internally parallels two H-bridges (A+B or C+D), halving effective ON-resistance from 0.6 Ω (Small Mode) to 0.3 Ω (Large Mode) while doubling peak current capability from 3.5 A to 5.0 A. This requires external shorting of corresponding VM, GND, OUT+, OUT−, and RS pins per pair, with balanced PCB trace impedance to prevent current imbalance.
What is the role of the D_tBLANK_AB and D_tBLANK_CD pins on the TB67H452FTG?
The D_tBLANK_AB and D_tBLANK_CD pins on the TB67H452FTG control digital blanking time for over-current detection (ISD) on respective channel pairs. When set low, only analog blanking (~500 ns) applies; when high, digital blanking extends to 4× the OSCM clock period (e.g., ~2.5 µs at 100 kHz chop). This prevents false ISD trips during PWM switching edges while preserving fast fault response elsewhere.
Does the TB67H452FTG require an external logic power supply?
No, the TB67H452FTG does not require an external logic power supply. It integrates an internal VCC regulator that generates a stable 5.0 V (±0.5 V) rail from the VM supply, powering all internal logic circuits. This eliminates the need for a separate 5 V source, simplifying system power design and reducing BOM cost and board space.
How does the TB67H452FTG handle thermal protection and fault reporting?
The TB67H452FTG incorporates a thermal shutdown (TSD) circuit triggering at ~150 °C junction temperature and an over-current detection (ISD) circuit activating at ~4.0 A sensed current. Both faults latch and disable all outputs until VM power is cycled. The open-drain ALERT pin pulls low during either fault, providing a single-wire fault signal to host controllers; it requires a 10 kΩ pull-up resistor to VCC for proper operation.
TB67H452FTG,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:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver
- Output Configuration:
- Half Bridge (4)
- Interface:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 5A
- Voltage - Supply:
- 4.5V ~ 5.5V
- Voltage - Load:
- 6.3V ~ 38V
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (7x7)
TB67H452FTG,EL FAQ
1.How can I place an order for TB67H452FTG,EL through Aetrix?
Please submit a Request for Quotation (RFQ) for TB67H452FTG,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 TB67H452FTG,EL reliable?
The price and inventory of TB67H452FTG,EL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB67H452FTG,EL is usually 5 days.
3.What payment methods are accepted for TB67H452FTG,EL?
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Once your TB67H452FTG,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 TB67H452FTG,EL?
For technical support, including TB67H452FTG,EL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB67H452FTG,EL requirements.
6.How does Aetrix verify that TB67H452FTG,EL is sourced from the original manufacturer or authorized distributors?
All TB67H452FTG,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 TB67H452FTG,EL meets industry standards.
7.What is the process for return or replacement of TB67H452FTG,EL?
All TB67H452FTG,EL units undergo pre-shipment inspection (PSI). If there is an issue with TB67H452FTG,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 TB67H452FTG,EL part is unused and in its original packaging.
Return procedure for TB67H452FTG,EL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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