Toshiba Semiconductor and Storage TLP5701(LF4,E

Overview

TLP5701(LF4,E) from Toshiba Electronic Devices & Storage Corporation is a 6-pin SO6L photocoupler integrating an infrared LED optically coupled to a high-gain, high-speed photodetector IC. It delivers ±0.6 A peak output current, 500 ns max propagation delay, and ±20 kV/µs common-mode transient immunity, enabling robust IGBT and power MOSFET gate drive in industrial inverters and induction cooktops.

For engineers reviewing the TLP5701(LF4,E) datasheet, TLP5701(LF4,E) pinout, TLP5701(LF4,E) application, or TLP5701(LF4,E) equivalent, this device supports safety-certified isolation (5000 Vrms, reinforced), operates from −40 °C to 110 °C, and requires only a 0.1 µF bypass capacitor between VCC and GND for stable switching performance.

Technical Context

The TLP5701(LF4,E) implements a buffer logic (totem-pole) output stage with UVLO protection, enabling reliable high-side/low-side gate driving without external level-shifting circuitry. Its internal noise shield and dual-stage photodetector architecture ensure stable operation under fast-rising common-mode transients up to ±20 kV/µs.

It functions as a galvanically isolated digital signal translator: input LED activation triggers complementary M1/M2 transistor switching in the detector IC, producing rail-to-rail output voltage swing (VOH ≥ 7.5 V, VOL ≤ 0.83 V at VCC = 15 V) suitable for direct connection to power device gates.

Key Specifications

Pinout & Package

Package: 6-pin SO6L (Toshiba package code 11-4N101A), lead-formed (LF4), height ≤2.3 mm, creepage/clearance ≥8.0 mm, isolation thickness ≥0.4 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar photocoupler-based gate driver applications.

Compared with ACPL-332J-500E and SI8261AD-D-IS, the TLP5701(LF4,E) offers balanced integration-delivering certified reinforced isolation, UVLO, and ±0.6 A drive in a single SO6L package-making it optimal for cost-constrained, safety-compliant 25 kHz industrial and appliance gate drive designs.

Availability

TLP5701(LF4,E) is available at Aetrix Electronics and suitable for industrial inverters, IGBT gate drivers, and induction cooktops requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for TLP5701(LF4,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 high-reliability semiconductor components for industrial, automotive, and consumer applications, with emphasis on safety, efficiency, and miniaturization.

The TLP5701(LF4,E) belongs to Toshiba's photocoupler product line, engineered specifically for compact, safety-certified gate driving in high-noise power conversion systems - targeting space-constrained inverters and home appliance controls.

FAQ

What is the maximum operating temperature for the TLP5701(LF4,E)?

The TLP5701(LF4,E) is rated for continuous operation from −40 °C to +110 °C. This extended range allows deployment in sealed industrial enclosures and high-temperature appliance power stages without derating. The device maintains guaranteed performance-including ±0.6 A output current and ±20 kV/µs CMTI-across this full range, as verified in Toshiba's Rev.8.0 datasheet.

Does the TLP5701(LF4,E) require an external bypass capacitor?

Yes, a 0.1 µF ceramic capacitor must be placed between pin 6 (VCC) and pin 4 (GND) within 1 cm of the pins. This capacitor stabilizes the internal high-gain amplifier and prevents improper switching behavior. Omission or incorrect placement risks erratic output transitions, especially under fast VCC ramp conditions exceeding 3.0 V/µs - a requirement explicitly stated in the TLP5701(LF4,E) datasheet Section 9.

What safety certifications does the TLP5701(LF4,E) hold?

The TLP5701(LF4,E) is UL-recognized (UL 1577, File No. E67349), cUL-recognized (CSA 5A File No. E67349), VDE-approved (EN IEC 60747-5-5 and EN IEC 62368-1), and CQC-approved (GB4943.1). These certifications confirm compliance with reinforced insulation requirements for industrial and household equipment - no additional external barriers are needed when using the TLP5701(LF4,E) in certified designs.

Can the TLP5701(LF4,E) drive both IGBTs and MOSFETs?

Yes, the TLP5701(LF4,E) is explicitly designed for both small-class IGBT and power MOSFET gate driving. Its ±0.6 A peak output current, rail-swing VOH/VOL (≥7.5 V / ≤0.83 V at 15 V), and 500 ns max propagation delay meet the dynamic gate charge requirements of devices like 600 V/20 A IGBTs and 100 V Si/SiC MOSFETs - as confirmed in Toshiba's Applications section and Electrical Characteristics tables.

What is the purpose of Pin 2 (N.C.) on the TLP5701(LF4,E)?

Pin 2 on the TLP5701(LF4,E) is a no-connect (N.C.) terminal - internally unconnected and electrically isolated from all other circuitry. It must remain floating on the PCB: no trace, pad, or solder mask modification is permitted. This mechanical pin provides structural stability in the SO6L package but carries zero electrical function, as defined in Toshiba's Pin Assignment diagram (Page 2) and Absolute Maximum Ratings note.