Toshiba Semiconductor and Storage TLP2370(TPR,E

Overview

TLP2370(TPR,E) from Toshiba Electronic Devices & Storage Corporation is a 20-Mbps high-speed photocoupler with infrared LED input and photo IC output in SO6 package, designed for isolated digital signal transmission in industrial control systems. It delivers ±20 kV/µs common-mode transient immunity, operates from 2.7 V to 5.5 V, consumes ≤0.4 mA supply current, and supports direct microcontroller drive with 1.3 mA minimum input forward current - enabling low-power, noise-immune isolation in PLCs and BMS.

For engineers reviewing the TLP2370(TPR,E) datasheet, TLP2370(TPR,E) pinout, TLP2370(TPR,E) application, or TLP2370(TPR,E) equivalent, key selection criteria include guaranteed CMRI ≥±20 kV/µs, propagation delay ≤60 ns, pulse width distortion ≤25 ns, and VDE/UL/cUL safety certification - critical for real-time industrial communication and high-voltage system feedback loops.

Technical Context

The TLP2370(TPR,E) integrates an AlGaAs infrared LED coupled to a monolithic silicon photodetector with totem-pole output stage, enabling bidirectional current sourcing/sinking (IO = ±3.2 mA). Its internal Faraday shield ensures robust noise rejection across wide temperature range (−40°C to +125°C).

It uses NRZ data encoding with 20 MBd typical transfer rate, achieves 3750 Vrms isolation voltage, and requires a mandatory 0.1 µF bypass capacitor between VDD (Pin 6) and GND (Pin 4) to stabilize high-gain switching behavior - per Toshiba's recommended operating conditions.

Key Specifications

Pinout & Package

Package: SO6 (TOSHIBA designation 11-4L1S), surface-mount, 6-pin small-outline package with creepage/clearance ≥5.0 mm and internal isolation thickness ≥0.4 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed photocoupler applications.

Compared with ACPL-K37T-000E and SI8710BD-A-IS, the TLP2370(TPR,E) uniquely combines VDE/UL-certified 3750 Vrms isolation, guaranteed ±20 kV/µs CMRI, and −40°C to +125°C operation - making it the only choice for safety-critical industrial inverters requiring full compliance with IEC 62368-1 and EN 61800-5-1.

Availability

TLP2370(TPR,E) is available at Aetrix Electronics and suitable for Programmable Logic Controllers (PLCs), Battery Management Systems (BMS), and Industrial Inverters requiring stable component supply, long-term lifecycle support, and certified isolation performance.

Supply support for TLP2370(TPR,E) 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 discrete semiconductors, power devices, and optoelectronics for industrial, automotive, and consumer applications.

The TLP2370 series belongs to Toshiba's high-speed photocoupler product line, engineered specifically for noise-immune digital isolation in harsh industrial environments with demanding safety and thermal requirements.

FAQ

What is the maximum operating temperature for the TLP2370(TPR,E)?

The TLP2370(TPR,E) is rated for continuous operation from −40°C to +125°C ambient temperature. This specification is validated across all electrical parameters including propagation delay, supply current, and common-mode transient immunity - ensuring reliable performance in under-hood BMS modules and enclosed PLC cabinets without derating.

Does the TLP2370(TPR,E) require an external bypass capacitor?

Yes, the TLP2370(TPR,E) requires a 0.1 µF ceramic capacitor placed between Pin 6 (VDD) and Pin 4 (GND), located within 1 cm of the pins. This capacitor is mandatory per Toshiba's datasheet (Section 5 and Section 8 Note) to prevent oscillation and ensure stable totem-pole output switching under high-gain conditions.

What safety certifications does the TLP2370(TPR,E) hold?

The TLP2370(TPR,E) is UL-recognized (UL 1577, File No. E67349), cUL-recognized (CSA Component Acceptance Service No. 5A File No. E67349), and VDE-approved for EN IEC 60747-5-5 and EN IEC 62368-1 - confirming its suitability for reinforced insulation in end equipment meeting international safety standards.

Can the TLP2370(TPR,E) be driven directly by a 3.3 V microcontroller?

Yes, the TLP2370(TPR,E) can be driven directly by a 3.3 V microcontroller GPIO. Its maximum threshold input current is 1 mA, and minimum input forward current is 1.3 mA - achievable with a ~2.2 kΩ series resistor at 3.3 V, eliminating the need for external buffer transistors or level shifters in most MCU interfaces.

What is the isolation voltage rating of the TLP2370(TPR,E)?

The TLP2370(TPR,E) provides a minimum isolation voltage of 3750 Vrms (AC, 60 s), verified per UL 1577 and VDE EN IEC 60747-5-5. This rating applies to the internal insulation barrier between input (Pins 1 & 3) and output (Pins 4, 5 & 6), supporting reinforced insulation in industrial equipment up to 600 V working voltage.