Toshiba Semiconductor and Storage TB62216FG,C,8,EL

Overview

TB62216FG,C,8,EL from Toshiba is a PWM chopper-type dual H-bridge motor driver IC fabricated in BiCD silicon monolithic process. It drives two DC brushed motors with 40 V absolute max voltage rating, 2.5 A continuous output per bridge, and integrated thermal shutdown (TSD), over-current detection (ISD), and current-sense feedback via RS pins. Used in compact industrial actuators requiring precise constant-current control.

For engineers reviewing the TB62216FG,C,8,EL datasheet, TB62216FG,C,8,EL pinout, TB62216FG,C,8,EL application, or TB62216FG,C,8,EL equivalent, key selection considerations include dual-bridge PWM chopper operation, external VREF-adjustable current limit, digital blanking time control via TBLK pins, and HSOP28 package thermal design constraints.

Technical Context

The TB62216FG,C,8,EL integrates two independent PWM-controlled H-bridges with internal oscillator (fOSCM = 1.2–2.0 MHz) generating fchop = fOSCM/16 (40–150 kHz). Each bridge supports charge, fast decay, slow decay, and mixed-decay modes with analog tBLK (400 ns typ.) and digitally configurable digital tBLK (2.5 µs at TBLK=L, 3.75 µs at TBLK=H).

Current regulation uses external sense resistor (RRS) and internal VREF (GND to 4.0 V) with fixed gain of 1/5.1; output current threshold is calculated as IOUT = VREF × 5.1 / RRS. Protection includes VM/VCC power-on reset, ISD (2.6–4.6 A threshold), VRS overvoltage detection (0.9–1.5 V), and junction temperature monitoring (TSD trigger at 140–160 °C).

Key Specifications

Pinout & Package

Package: HSOP28-P-0450-0.80 - 28-pin heat-sink exposed thermally enhanced SOP with 0.80 mm pitch, 4.5 mm body width, and exposed pad for thermal dissipation (typ. weight 0.79 g).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual H-bridge motor driver applications.

Compared with DRV8876PWPR and BD6221F-E2, the TB62216FG,C,8,EL uniquely balances robust noise immunity (dual-mode tBLK), integrated protection (TSD/ISD/VRS), and single-supply simplicity-making it optimal for industrial motion control where reliability under electrical stress is non-negotiable.

Availability

TB62216FG,C,8,EL is available at Aetrix Electronics and suitable for industrial linear actuators, automated door locks, medical infusion pumps, and robotic joint controllers requiring stable component supply across multi-year production cycles.

Supply support for TB62216FG,C,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 motor control, power management, and optical devices.

The TB62216FG,C,8,EL belongs to Toshiba's BiCD-based motor driver family engineered specifically for compact, thermally constrained DC brushed motor systems requiring integrated protection and precise current regulation.

FAQ

What is the maximum continuous output current per H-bridge for the TB62216FG,C,8,EL?

The TB62216FG,C,8,EL supports 2.0 A continuous output current per H-bridge at Ta = 25°C, as specified in its Operating Ranges table. This value assumes adequate PCB copper area and thermal management; the Absolute Maximum Rating is 2.5 A, but sustained operation above 2.0 A requires derating based on junction temperature limits (Tj ≤ 120°C recommended). The TB62216FG,C,8,EL datasheet specifies that motor current must be controlled to stay under 80% of absolute max ratings in normal use.

How does the VREF pin set the current limit in the TB62216FG,C,8,EL?

The VREF pin on the TB62216FG,C,8,EL accepts a DC voltage from GND to 4.0 V, which is internally scaled by a fixed gain of 1/5.1 to generate the current-sense reference. The resulting threshold voltage is compared against the RS pin voltage (VRS = IOUT × RRS), so the output current limit is calculated as IOUT = VREF × 5.1 / RRS. For example, with VREF = 3.0 V and RRS = 0.51 Ω, the TB62216FG,C,8,EL limits current to approximately 3.0 × 5.1 / 0.51 = 30 A - but this exceeds device capability; practical values use RRS ≥ 0.5 Ω and VREF ≤ 4.0 V to stay within 2.0 A.

Can the TB62216FG,C,8,EL drive stepper motors?

The TB62216FG,C,8,EL is not designed for bipolar stepper motor control. It provides two independent H-bridges optimized for DC brushed motor commutation with PWM chopper current regulation, but lacks native step/direction interfaces, microstepping logic, or synchronized dual-phase timing required for stepper operation. While external MCU logic can emulate basic two-phase excitation, the TB62216FG,C,8,EL does not support current waveform shaping or phase correlation needed for accurate stepper positioning - use dedicated stepper drivers like TB6600 or DRV8825 instead.

What is the purpose of the TBLK_A and TBLK_B pins on the TB62216FG,C,8,EL?

The TBLK_A and TBLK_B pins on the TB62216FG,C,8,EL configure the digital blanking time for each H-bridge's over-current detection circuit. When pulled low, they set digital tBLK = OSCM × 4 clock cycles (~2.5 µs at fOSCM = 1.6 MHz); when high, tBLK = OSCM × 6 cycles (~3.75 µs). This blanking window prevents false ISD triggers caused by transient current spikes during H-bridge switching or varistor recovery in DC motor loads - a critical feature for reliable operation in electrically noisy industrial environments.

Does the TB62216FG,C,8,EL require an external logic supply voltage?

No, the TB62216FG,C,8,EL does not require an external logic supply. Its internal voltage regulator derives VCC (5.0 V ±2.5%) directly from the VM motor supply rail, enabling true single-supply operation. The VCC pin serves as both regulator output and power-on reset monitor - eliminating the need for a separate 5 V rail and reducing system component count. This architecture is confirmed in the datasheet's "Built-in regulator allows the TB62216FG to function with only VM power supply" feature statement and Electrical Specifications table.