Toshiba Semiconductor and Storage TLP2770(D4,E

Overview

TLP2770(D4,E) from Toshiba Electronic Devices & Storage Corporation is a 20-Mbps reinforced-insulation photocoupler with totem-pole output, housed in a thin SO6L package (2.3 mm max height). It delivers 5 kVrms isolation, ±20 kV/µs common-mode transient immunity, and operates from 2.7 V to 5.5 V with supply current ≤0.4 mA across –40°C to 125°C - enabling direct microcontroller drive in industrial inverters and battery management systems.

For engineers reviewing the TLP2770(D4,E) datasheet, TLP2770(D4,E) pinout, TLP2770(D4,E) application, or TLP2770(D4,E) equivalent, key selection criteria include guaranteed reinforced insulation compliance (EN IEC 60747-5-5 Option D4), low-threshold input current (≤1 mA), propagation delay ≤60 ns, and SO6L footprint compatibility for space-constrained PLC and BMS designs.

Technical Context

The TLP2770(D4,E) integrates an infrared LED coupled to a photo IC detector with internal Faraday shield, enabling high-speed digital signal isolation without external biasing. Its totem-pole output supports both sourcing and sinking up to 3.2 mA while maintaining rail-to-rail logic swing (VOH ≥ VDD − 0.1 V, VOL ≤ 0.35 V).

Designed for reinforced insulation per EN IEC 60747-5-5 (Option D4), it achieves 8.0 mm creepage/clearance and 0.4 mm internal isolation thickness. The device requires a 0.1 µF bypass capacitor between VDD (Pin 6) and GND (Pin 4) within 1 cm to stabilize high-gain operation and ensure reliable switching.

Key Specifications

Pinout & Package

Package: SO6L (Toshiba designation 11-4N1A), 2.3 mm max height, 0.126 g typical weight, surface-mount with gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLP2362(TP,E), the TLP2770(D4,E) adds reinforced insulation certification and cuts input current by 40%, while versus ACPL-K37T-000E, it trades 5 MBd speed for guaranteed ±20 kV/µs CMTI and drop-in SO6L compatibility - making it optimal for certified industrial I/O where layout reuse and noise immunity are prioritized over peak bandwidth.

Availability

TLP2770(D4,E) is available at Aetrix Electronics and suitable for programmable logic controllers, battery management systems, and industrial inverters requiring stable component supply with long-term lifecycle assurance and safety-standard traceability.

Supply support for TLP2770(D4,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 TLP2770 belongs to Toshiba's high-speed photocoupler product line, engineered specifically for reinforced-isolation digital signal transmission in safety-compliant industrial automation and energy storage systems.

FAQ

What safety certifications apply to the TLP2770(D4,E)?

The TLP2770(D4,E) is certified for reinforced insulation per EN IEC 60747-5-5 (Option D4), and carries UL 1577 (File E67349), cUL CSA Component Acceptance (File E67349), and CQC GB4943.1 approvals. These certifications validate its suitability for mains-connected industrial equipment where double insulation is mandated - distinct from basic insulation variants like standard TLP2770 without the D4 suffix.

Why does the TLP2770(D4,E) require a 0.1 µF capacitor between Pins 6 and 4?

The TLP2770(D4,E) requires a 0.1 µF ceramic bypass capacitor between VDD (Pin 6) and GND (Pin 4) to suppress high-frequency noise on the detector supply rail. Without it, the internal photo IC may exhibit unstable switching or oscillation due to insufficient decoupling - especially critical given its 20 MBd data rate and ±20 kV/µs CMTI performance. Placement within 1 cm of the pins is mandatory per Toshiba's design guidance.

Can the TLP2770(D4,E) be driven directly by a 3.3 V microcontroller GPIO?

Yes, the TLP2770(D4,E) can be driven directly by a 3.3 V microcontroller GPIO because its maximum threshold input current (IFLH) is 1 mA, and its input forward voltage (VF) is 1.85 V max at 1.3 mA. With a 3.3 V supply and typical GPIO drive strength, a simple 1.5 kΩ series resistor limits current to ~1.2 mA - well within specification and eliminating need for external transistor buffers in most PLC and BMS implementations.

How does the SO6L package of the TLP2770(D4,E) differ from standard SOIC-6?

The TLP2770(D4,E) uses Toshiba's SO6L package (11-4N1A), which is a thin-profile variant of SOIC-6 with maximum height of 2.3 mm - significantly lower than standard SOIC-6 (typically 2.65 mm). This reduced height enables use in space-constrained applications like stacked PLC I/O modules and compact BMS sensor boards, while maintaining identical 1.27 mm lead pitch and PCB land pattern compatibility.

What is the significance of the "D4" in TLP2770(D4,E)?

The "D4" in TLP2770(D4,E) denotes qualification to Option D4 of EN IEC 60747-5-5 - a specific test protocol verifying reinforced insulation integrity, including partial discharge, surge, and insulation resistance tests under humid conditions. This suffix distinguishes it from standard TLP2770 variants and confirms compliance for safety-critical applications where failure could result in electric shock, such as industrial mains interfaces and EV battery isolation barriers.