Toshiba Semiconductor and Storage TB62213AFG,8,EL

Overview

TB62213AFG,8,EL from Toshiba is a two-phase bipolar stepping motor driver IC using PWM chopper control, fabricated in BiCD process. It delivers 40 V/3.0 A per phase, supports Full/Half/¼-step excitation modes, and integrates on-chip VCC regulation enabling single VM supply operation. It is used in precision motion control systems such as industrial automation actuators and office equipment positioning mechanisms.

For engineers reviewing the TB62213AFG,8,EL datasheet, TB62213AFG,8,EL pinout, TB62213AFG,8,EL application, or TB62213AFG,8,EL equivalent, key selection considerations include its 100 kHz chopper frequency capability, thermal shutdown (150°C), overcurrent protection (3.0 A min trip), RS-sense current feedback architecture, and HSOP28 package thermal performance under continuous 2.4 A per-phase operation.

Technical Context

The TB62213AFG,8,EL implements mixed-decay PWM current control via dual H-bridge outputs, with independent RS_A/RS_B current sensing and VREF_A/VREF_B reference inputs for per-phase current setting. Its internal oscillator (OSCM) sets chopper frequency (40–150 kHz) through external R/C network, and logic-level PHASE/IN inputs decode step mode and direction.

It embeds three protection circuits: thermal shutdown (TSD) triggered at 150°C junction temperature, overcurrent shutdown (ISD) with 4-cycle masking against noise, and power-on reset (POR) for VM and VCC. All ground pins (12,14,15,17) must be connected to a single-point low-impedance plane for thermal and noise integrity.

Key Specifications

Pinout & Package

Package: HSOP28-P-0450-0.80 - 28-pin heat-sink exposed pad package, 0.80 mm pitch, 0.79 g typical weight, optimized for thermal dissipation in motor drive applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STK672-440A-E and DRV8825PWPR, the TB62213AFG,8,EL uniquely balances 3.0 A drive capability, single-supply simplicity, and hardware-based mixed-decay control-making it optimal for cost-sensitive, thermally constrained industrial motion systems requiring robust fault handling without software overhead.

Availability

TB62213AFG,8,EL is available at Aetrix Electronics and suitable for industrial CNC positioning, medical infusion pump actuation, office equipment paper feed, and automated retail kiosk dispenser applications requiring stable component supply and long-term production continuity.

Supply support for TB62213AFG,8,EL 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 thermal robustness and system-level integration.

The TB62213AFG,8,EL belongs to Toshiba's BiCD-based motor driver product line, engineered specifically for compact, single-supply bipolar stepper control in space-constrained motion systems where thermal management and fault resilience are critical.

FAQ

What is the maximum continuous output current per phase for the TB62213AFG,8,EL?

The TB62213AFG,8,EL supports 2.4 A per phase continuously under standard conditions (Ta = 25°C, adequate PCB copper area). Its absolute maximum rating is 3.0 A, but sustained operation above 2.4 A requires enhanced thermal design-including use of the exposed pad, multiple GND vias, and ≥2 oz copper layers-to maintain junction temperature below 150°C. Derating is required above 25°C ambient.

How does the TB62213AFG,8,EL achieve single-supply operation?

The TB62213AFG,8,EL achieves single-supply operation through an integrated on-chip VCC regulator that generates a stable 5.0 V ±2.5% internal supply from the VM rail (10–38 V). This eliminates the need for an external 5 V regulator, allowing full functionality-including logic, oscillator, and gate drivers-with only the VM power source connected. The VCC pin serves as both output and monitor point.

Can the TB62213AFG,8,EL support microstepping finer than ¼-step?

No, the TB62213AFG,8,EL natively supports only Full Step, Half Step, and ¼-Step excitation modes via its four digital input pins (IN_A1/IN_A2/IN_B1/IN_B2) and PHASE_A/PHASE_B direction controls. It does not implement internal interpolation or DAC-based current division for 8×, 16×, or 32× microstepping. Finer resolution requires an external indexer or controller generating appropriate step/direction sequences.

What is the purpose of the OSCM pin on the TB62213AFG,8,EL?

The OSCM pin on the TB62213AFG,8,EL sets the chopper oscillator frequency via an external resistor and capacitor (e.g., 3.6 kΩ + 270 pF yields 1600 kHz OSCM frequency). The internal chopper frequency is derived as f_chop = f_OSCM/16, resulting in a typical 100 kHz switching rate. This adjustable frequency allows optimization for acoustic noise, current ripple, and MOSFET switching losses in different motor and load configurations.

How does the TB62213AFG,8,EL handle overcurrent faults?

The TB62213AFG,8,EL detects overcurrent via dedicated ISD circuits monitoring RS_A and RS_B sense voltages. When current exceeds 3.0–5.0 A (depending on device variation), outputs disable within four OSCM cycles and remain latched off until STANDBY is toggled Low→High or the device is power-cycled. This hardware-based response protects against short circuits without MCU involvement, but persistent faults must be cleared externally to prevent thermal damage.