Toshiba Semiconductor and Storage TB62210FNG,C8,EL

Overview

TB62210FNG,C8,EL from Toshiba is a BiCD monolithic two-phase bipolar stepping motor driver IC with PWM chopper control, 40 V/1.0 A absolute maximum ratings, integrated voltage regulator for single VM supply operation, and thermal shutdown (TSD), overcurrent detection (ISD), and power-on reset (POR) protection. It drives precision motion in compact industrial actuators, office automation scanners, and medical lab positioning stages.

For engineers reviewing the TB62210FNG,C8,EL datasheet, TB62210FNG,C8,EL pinout, TB62210FNG,C8,EL application, or TB62210FNG,C8,EL equivalent, key selection criteria include its 24-pin P-HTSSOP package, ±1.5 V RS pin sensing range, 40–150 kHz chopper frequency, dual H-bridge output architecture, and support for two-phase, 1-2-phase, and W1-2-phase excitation modes.

Technical Context

The TB62210FNG,C8,EL implements mixed-decay PWM current control using an internal CR oscillator (1.2–2.0 MHz) divided to generate 40–150 kHz chopper frequencies. Its dual H-bridge outputs are driven by DMOS FETs fabricated via BiCD process, enabling 40 V breakdown voltage and 1.2 Ω typical total R_DS(on) per phase.

Current regulation is set by external Vref (0–3.6 V) and RS sense resistors, with I_OUT = (Vref / 5) / R_RS; phase direction is controlled independently via PHASE_A/PHASE_B inputs, while excitation sequence is managed by IN_A1/IN_A2/IN_B1/IN_B2 logic signals under STANDBY-–gated operation.

Key Specifications

Pinout & Package

Package: P-HTSSOP24-0508-0.65-001 - 24-pin thermally enhanced thin shrink small outline package with exposed heat sink (2.85 mm × 4.05 mm) on underside; 0.65 mm pitch; RoHS-compliant; weight 0.1 g (typ.).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TB6600HG and DRV8825, the TB62210FNG,C8,EL offers optimal balance of simplicity, thermal robustness, and single-supply operation for cost-sensitive 0.6 A stepper applications - especially where fixed excitation modes and minimal external components are prioritized over ultra-fine resolution or extreme current headroom.

Availability

TB62210FNG,C8,EL is available at Aetrix Electronics and suitable for industrial automation actuators, office equipment scanners, and medical lab instrument positioning requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for TB62210FNG,C8,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 and manufactures high-reliability analog, power, and motor driver ICs for industrial, automotive, and consumer applications.

The TB62210FNG,C8,EL belongs to Toshiba's BiCD stepping motor driver family, engineered specifically for compact, thermally constrained motion systems requiring integrated protection, single-supply operation, and deterministic excitation sequencing.

FAQ

What is the recommended operating current for TB62210FNG,C8,EL to ensure thermal reliability?

The TB62210FNG,C8,EL is rated for 1.0 A per phase absolute maximum, but Toshiba specifies 0.6 A per phase as the recommended continuous operating current at Ta = 85°C. This derating accounts for junction temperature rise under real-world PCB thermal conditions. Exceeding 0.6 A requires careful thermal design - including use of the exposed heat sink pad, adequate copper area, and airflow - and may trigger thermal shutdown if Tj exceeds 150°C. Always verify I_OUT = (Vref / 5) / R_RS with measured Vref and R_RS tolerance.

Can TB62210FNG,C8,EL operate without an external VCC supply?

Yes - the TB62210FNG,C8,EL integrates an on-chip voltage regulator that derives VCC (4.75–5.25 V) directly from the VM supply (10–38 V). No external logic supply is needed; however, a 0.1 µF ceramic capacitor must be placed between VCC and LGND close to the IC. This eliminates a separate 5 V rail, reducing system cost and board space. Note that VCC is not intended to power external logic - it serves only the internal digital circuitry of the TB62210FNG,C8,EL.

How does the TB62210FNG,C8,EL implement current sensing and what is the RS pin voltage range?

The TB62210FNG,C8,EL senses motor current through external sense resistors (RRS) connected between RS_A/RS_B and PGND. The RS pins accept differential voltages from –1.5 V to +1.5 V relative to VM, enabling bidirectional current measurement for full-wave excitation. This allows accurate current feedback during both positive and negative half-cycles of bipolar drive. The internal current comparator uses this signal to regulate PWM duty cycle and maintain constant peak current, independent of motor back-EMF or supply variation.

What excitation modes does TB62210FNG,C8,EL support and how are they configured?

The TB62210FNG,C8,EL supports three excitation modes: two-phase (full-step), 1-2-phase (half-step), and W1-2-phase (a weighted hybrid mode offering 71%/38% intermediate currents). These are selected solely by logic levels applied to IN_A1/IN_A2/IN_B1/IN_B2 - no registers or serial interface required. Each mode produces distinct current waveforms and step resolution; W1-2-phase improves smoothness over standard half-stepping without needing microstepping clock division. PHASE_A and PHASE_B pins independently control current direction per phase.

Does TB62210FNG,C8,EL require external flyback diodes for stepper coil protection?

No - the TB62210FNG,C8,EL integrates freewheeling paths within its DMOS H-bridge outputs, eliminating the need for external flyback diodes. The internal body diodes and active recirculation circuitry handle back-EMF energy during current decay. However, system-level protection remains critical: the power supply must have sufficient sink capability to absorb regenerated energy during motor deceleration, otherwise VM rail voltage can rise beyond 40 V and damage the TB62210FNG,C8,EL or other components. A TVS or bulk capacitor on VM is strongly advised.