Toshiba Semiconductor and Storage TBD62083APG

Overview

TBD62083APG from Toshiba Electronic Devices & Storage Corporation is an 8-channel sink-type DMOS transistor array IC designed for driving inductive loads such as relays, solenoids, and small DC motors. It integrates built-in clamp diodes per channel, supports 50 V output voltage and 500 mA/channel maximum output current, and features TTL-compatible input thresholds (2.5 V min ON, 0.6 V max OFF) in a P-DIP18 package.

For engineers reviewing the TBD62083APG datasheet, TBD62083APG pinout, TBD62083APG application, or TBD62083APG equivalent, key selection criteria include sink-current capability under thermal derating, COMMON-pin voltage handling up to 50 V, clamp diode forward voltage (2.0 V typ), and compatibility with microcontroller GPIOs driving relay coils in industrial control modules.

Technical Context

The TBD62083APG implements eight independent N-channel DMOS power transistors in a single monolithic BiCD silicon die, each with integrated reverse-biased clamp diodes across OUTPUT–COMMON to suppress inductive kickback. Its input logic interface accepts low-threshold TTL-level signals, enabling direct drive from 3.3 V or 5 V MCUs without level-shifting.

Thermal performance is defined by package-specific power dissipation limits: 1.47 W (P-DIP18, device alone), with linear derating of 11.8 mW/°C above 25 °C ambient. Output ON-resistance is 0.7 V (typ) at 350 mA, translating to ~2 Ω R_DS(on), and switching delays are 0.4 μs (t_ON) and 0.8 μs (t_OFF) under standard test conditions.

Key Specifications

Pinout & Package

Package: P-DIP18-300-2.54-001 (18-pin plastic dual in-line, 300 mil width, 2.54 mm pitch, typical weight 1.3 g).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage sink driver applications.

Compared with ULN2803ADWR and TB62786AFNG, the TBD62083APG delivers lower conduction loss (0.7 V vs. 1.3 V), faster switching (0.4/0.8 μs vs. >2 μs), and fully integrated clamp protection-making it optimal for thermally constrained, high-speed industrial relay and solenoid control where reliability and layout simplicity are critical.

Availability

TBD62083APG is available at Aetrix Electronics and suitable for industrial PLC modules, automated test equipment, dot-matrix printer subsystems, and CNC machine tool controllers requiring stable component supply and long-term obsolescence management.

Supply support for TBD62083APG 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 is a Japanese semiconductor manufacturer specializing in power devices, logic ICs, and analog solutions for industrial, automotive, and consumer markets.

The TBD62083APG belongs to Toshiba's BiCD-based DMOS transistor array product line, engineered specifically for robust, high-voltage, high-current sinking in electromechanical control systems with minimal external components.

FAQ

What is the maximum continuous output current per channel for TBD62083APG?

The TBD62083APG supports up to 400 mA per channel continuously under specified conditions: single channel ON, T_a = 25 °C, and pulse width ≤25 ms. At 85 °C ambient with all 8 channels active at 10% duty cycle, the rated current drops to 390 mA/ch due to thermal derating. Exceeding these limits risks junction temperature exceedance and permanent damage.

Can TBD62083APG drive 48 V inductive loads?

No, the TBD62083APG has a maximum output voltage rating of 50 V, but its COMMON pin voltage range is −0.5 V to +50 V. Driving a 48 V load requires the COMMON pin to be tied to +48 V, placing the output pins at near-ground potential when active. While within absolute maximum ratings, sustained operation at 48 V demands strict thermal management and verification of clamp diode reverse voltage margin under worst-case transients.

Does TBD62083APG require external flyback diodes when driving relays?

No, the TBD62083APG includes a built-in clamp diode for each of its 8 output channels, connected between the OUTPUT and COMMON pins. These diodes provide flyback suppression for inductive loads like relays and solenoids, eliminating the need for external diodes in standard configurations where COMMON is connected to the positive supply rail of the load.

What is the input voltage threshold for turning on TBD62083APG outputs?

The TBD62083APG requires a minimum input voltage of 2.5 V at any I1–I8 pin to guarantee output turn-on under load (I_OUT ≥100 mA, V_OUT = 2 V). Input voltages below 0.6 V guarantee output turn-off. This makes the TBD62083APG compatible with 3.3 V and 5 V logic families without level-shifting circuitry.

How does thermal derating affect TBD62083APG power dissipation in real-world PCB layouts?

For the P-DIP18 package (TBD62083APG), power dissipation must be derated by 11.8 mW/°C above 25 °C ambient temperature when used device-alone. On a typical PCB with copper area, actual thermal resistance improves, but Toshiba specifies no derating curve for board-mounted conditions in this datasheet. Designers must calculate junction temperature using θ_JA values from thermal simulation or measurement to ensure T_j stays ≤120 °C.