Toshiba Semiconductor and Storage TB67H410FTG,EL

Overview

TB67H410FTG from Toshiba Electronic Devices & Storage Corporation is a PWM chopper-type dual-channel brushed DC motor driver IC fabricated in BiCD process, rated for 50 V maximum VM and delivering up to 2.5 A per channel (Small mode) or 5.0 A in parallel Large mode. It integrates thermal shutdown (TSD), over-current detection (ISD), power-on reset (POR), and internal voltage regulation - enabling single-supply operation with VM only. It serves in precision motor control for robotics, industrial actuators, and automated optical equipment.

For engineers reviewing the TB67H410FTG datasheet, TB67H410FTG pinout, TB67H410FTG application, or TB67H410FTG equivalent, key selection considerations include its dual-bridge PWM constant-current chopping architecture, 0.8 Ω typical total on-resistance (HS + LS), programmable OSCM frequency (50–100 kHz recommended chopper range), HBMODE-selectable Small/Large operation modes, and integrated current-sense interface via RSA/RSB pins.

Technical Context

The TB67H410FTG implements a mixed-decay PWM chopper control with fixed 37.5% decay timing per cycle, using an internal oscillator (fOSCM = 0.64–2.4 MHz) divided by 16 to set fchop (40–150 kHz). Its dual H-bridge topology supports independent two-motor control (Small mode) or paralleled high-current single-motor drive (Large mode) via HBMODE pin configuration.

Current regulation is achieved through external sense resistors (RSA/RSB) and adjustable VREF (0–4.0 V), with IOUT(max) = VREF × (1/5.0) / RRS. Protection includes analog blanking time (400 ns typ.) and digitally configurable tBLK (3.6–5.4 µs), plus TSD (145–175 °C) and ISD (2.6–4.0 A threshold) circuits that force standby mode on fault detection.

Key Specifications

Pinout & Package

P-WQFN48-0707-0.50-003 package: 48-pin, 7.0 mm × 7.0 mm, 0.50 mm pitch, exposed thermal pad requiring PCB ground connection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar brushed DC motor driver applications.

Compared with DRV8876PWPR and MP6532GQ-Z, the TB67H410FTG uniquely supports both dual independent motor control and paralleled high-current mode via HBMODE, offers externally adjustable chopper frequency and blanking time, and uses resistor-based current sensing for design flexibility and cost control - making it optimal for industrial motion systems requiring configurability and robustness.

Availability

TB67H410FTG is available at Aetrix Electronics and suitable for industrial robotics, medical infusion pumps, and automated optical inspection systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for TB67H410FTG 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 consumer applications, with emphasis on integration, protection, and thermal robustness.

The TB67H410FTG belongs to Toshiba's BiCD-process motor driver family, engineered specifically for PWM chopper-based brushed DC motor control in space- and thermally constrained environments where dual-channel flexibility and fault resilience are critical.

FAQ

What is the maximum continuous output current for TB67H410FTG in Small mode?

The TB67H410FTG supports up to 2.5 A per channel continuously in Small mode under proper thermal conditions (e.g., adequate PCB copper area and ambient ≤70°C). Absolute maximum rating is 2.5 A, but Toshiba recommends operating below 1.75 A (70% derating) for sustained reliability. The actual limit depends on board layout, heatsinking, and ambient temperature - verified via junction temperature calculation using PD = I² × R_DS(on) + losses.

How does HBMODE pin configuration affect TB67H410FTG operation?

When HBMODE = Low, TB67H410FTG operates in Small mode: Bridge A and Bridge B function independently to drive two separate brushed DC motors. When HBMODE = High, it enters Large mode: both bridges parallel internally to deliver up to 5.0 A for a single motor - requiring OUTA+/OUTB+, OUTA−/OUTB−, and RSA/RSB to be shorted externally. Logic inputs for Bridge B are ignored in Large mode.

Can TB67H410FTG operate from a single power supply?

Yes, TB67H410FTG features an integrated regulator that derives VCC (5.0 V typ.) directly from the VM motor supply rail, eliminating the need for a separate logic supply. This allows full operation with only VM (10–47 V) connected - provided VM meets minimum startup voltage (8.0 V typ.) and ripple is within specification. VCC is monitored internally and contributes to POR functionality.

What is the role of TBLKAB pin in TB67H410FTG?

The TBLKAB pin selects digital blanking time duration in TB67H410FTG: Low sets tBLK = fOSCM × 4 clock cycles (~3.6 µs at 1.12 MHz), and High sets tBLK = fOSCM × 6 cycles (~5.4 µs). This blanking period suppresses false over-current detection during H-bridge switching transients, especially critical in charge-drive mode with brushed motors exhibiting back-EMF recovery spikes.

How is motor current regulated in TB67H410FTG?

TB67H410FTG regulates motor current using PWM chopper control with external sense resistors (RSA/RSB) and adjustable VREF. Peak current is calculated as I_OUT(max) = VREF × (1/5.0) / R_RS. For example, with VREF = 3.0 V and R_RS = 0.51 Ω, the setting is 1.18 A. The internal comparator monitors voltage across RSA/RSB and triggers slow/fast decay modes to maintain this target during each chopping cycle.