Toshiba Semiconductor and Storage TB62213AFTG,C8,EL

Overview

TB62213AFTG from Toshiba is a two-phase bipolar stepping motor driver IC using PWM chopper control, fabricated in BiCD silicon monolithic process. It delivers 40 V/3.0 A per phase, supports Full/Half/¼-step excitation modes, and integrates on-chip VCC regulation for single VM supply operation - used in precision motion control systems such as industrial automation actuators and optical positioning stages.

For engineers reviewing the TB62213AFTG datasheet, TB62213AFTG pinout, TB62213AFTG application, or TB62213AFTG equivalent, key selection criteria include its 100 kHz chopper frequency capability, dual-channel current-sense resistor interface (RS_A/RS_B), thermal shutdown (150°C Tj), overcurrent protection (3.0 A trip), and QFN48-P-0707-0.50 package with integrated heatsink pad.

Technical Context

The TB62213AFTG implements mixed-decay PWM current control via dual H-bridge outputs, with independent torque control per phase using 2-bit D/A angle setting and external VREF_A/VREF_B inputs. Its oscillator circuit (OSCM) sets chopper frequency through external R/C network (e.g., 3.6 kΩ + 270 pF → 1.6 MHz OSCM → 100 kHz fchop).

Protection logic includes thermal shutdown (TSD), overcurrent shutdown (ISD) with 4-cycle masking, and power-on reset (POR) for VM and VCC. Input logic decoding supports PHASE_A/PHASE_B direction signals and IN_A1/IN_A2/IN_B1/IN_B2 step sequencing, enabling precise microstepping without external controller complexity.

Key Specifications

Pinout & Package

Package: QFN48-P-0707-0.50 (7.0 mm × 7.0 mm, 0.50 mm pitch, exposed thermal pad). Dimensions comply with JEDEC MO-220, thermal pad soldered to internal ground plane for heat dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bipolar stepping motor driver applications.

Compared with STK672-430-E and DRV8825, the TB62213AFTG uniquely combines single-supply operation, 3.0 A absolute maximum current, and hardware-selectable step modes - making it optimal for industrial motion systems requiring reliability, thermal headroom, and minimal BOM count.

Availability

TB62213AFTG is available at Aetrix Electronics and suitable for industrial CNC positioning, medical infusion pump actuation, automated optical inspection (AOI), and print head carriage control requiring stable component supply across long production lifecycles.

Supply support for TB62213AFTG 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 decades of expertise in motor control and BiCD process technology.

The TB62213AFTG belongs to Toshiba's bipolar stepper driver product line, engineered specifically for compact, thermally constrained motion systems needing integrated protection, microstepping flexibility, and single-rail simplicity.

FAQ

What is the maximum continuous output current per phase for the TB62213AFTG?

The TB62213AFTG delivers 2.4 A per phase continuously under typical operating conditions (Ta = 25°C, VM = 24 V). Its absolute maximum rating is 3.0 A, but sustained operation above 2.4 A requires aggressive thermal management - including PCB copper area, thermal vias under the exposed pad, and airflow - to avoid triggering thermal shutdown at 150°C junction temperature. The TB62213AFTG datasheet specifies derating of 10.4 mW/°C above 25°C ambient.

How does the TB62213AFTG achieve microstepping without an external indexer?

The TB62213AFTG implements Full, Half, and ¼-step excitation internally using its step decoder and 2-bit D/A torque control block. Logic inputs IN_A1/IN_A2/IN_B1/IN_B2 directly define the excitation state, while PHASE_A/PHASE_B set current direction. No external clock or microcontroller is needed for basic stepping - the TB62213AFTG generates all required gate timing and current regulation autonomously once VREF and OSCM components are configured.

Can the TB62213AFTG operate from a single power supply, and what are the voltage limits?

Yes, the TB62213AFTG operates from a single VM supply (10.0–38.0 V typical, 40 V absolute max) thanks to its integrated VCC regulator. This eliminates the need for a separate 5 V logic rail. The internal regulator powers all digital and analog circuitry, and VCC pin serves only as a monitor/test point - not a supply input. Exceeding 40 V on VM risks permanent damage, as the TB62213AFTG has no overvoltage protection.

What protection features are built into the TB62213AFTG, and how do they respond to faults?

The TB62213AFTG includes thermal shutdown (TSD), overcurrent shutdown (ISD), and power-on reset (POR). TSD disables outputs if junction temperature exceeds 150°C; ISD trips if phase current exceeds 3.0 A (with 4-cycle noise masking); POR holds outputs off until VM and VCC stabilize. All protections retain latch-off behavior until STANDBY is toggled or power cycled - ensuring fail-safe motor stop during faults. The TB62213AFTG documentation emphasizes these are emergency safeguards, not substitutes for proper system-level design.

How is output current set on the TB62213AFTG, and what external components are required?

Output current is set per phase using the formula IOUT = VREF/5/RRS, where VREF is applied to VREF_A or VREF_B (max 3.6 V), and RRS is the current-sense resistor connected to RS_A or RS_B. For example, 3.0 V VREF and 0.33 Ω RRS yields 1.8 A. External components include OSCM timing R/C (e.g., 3.6 kΩ + 270 pF), VM bypass capacitors (100 µF + 0.1 µF), and motor winding flyback paths. The TB62213AFTG requires both RRS pins shorted locally to their respective sense resistors per datasheet Note 1.