Toshiba Semiconductor and Storage TLP5771(E

Overview

TLP5771(E) from Toshiba Electronic Devices & Storage Corporation is a high-speed, buffer-type photocoupler integrating an infrared LED and a photo IC in a 6-pin SO6L package. It delivers ±1.0 A peak output current, 150 ns max propagation delay, and ±35 kV/µs common-mode transient immunity, enabling direct microcontroller drive and rail-to-rail switching in industrial motor control systems.

For engineers reviewing the TLP5771(E) datasheet, TLP5771(E) pinout, TLP5771(E) application, or TLP5771(E) equivalent, this device supports safety-certified isolation in compact inverters, AC servos, and PV power conditioning where low-threshold input (2 mA max), reinforced insulation (5000 Vrms), and high CMTI are critical selection criteria.

Technical Context

The TLP5771(E) implements a totem-pole output stage with internal Faraday shielding, delivering rail-to-rail logic-level outputs without external buffers. Its photodetector integrates high-gain amplification and UVLO circuitry, ensuring stable operation across 10–30 V supply and -40°C to +110°C ambient.

It operates as a digital signal isolator with defined truth-table behavior (H/L input → H/L output), supporting up to 50 kHz switching frequency. The internal isolation barrier meets reinforced insulation per UL 1577, EN IEC 60747-5-5, and GB4943.1, validated at 5000 Vrms for 60 seconds.

Key Specifications

Pinout & Package

Package: 6-pin SO6L (Toshiba package code 11-4N1A), surface-mount, creepage/clearance ≥8.0 mm, height ≤2.3 mm, weight 0.126 g (typ.).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLP5771(E), TLP5772(E) adds channel density without changing footprint or specs per channel, while ACPL-332J trades lower isolation voltage for faster switching and higher drive strength - making TLP5771(E) optimal for safety-certified, space-constrained industrial inverters.

Availability

TLP5771(E) is available at Aetrix Electronics and suitable for photovoltaic power conditioning systems, AC servo drives, and compact motor drivers requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for TLP5771(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 core expertise in power devices, logic ICs, and optoelectronics.

The TLP5771(E) belongs to Toshiba's high-speed photocoupler product line, engineered specifically for reinforced-isolation gate driving in motor control, renewable energy, and factory automation systems where safety, noise immunity, and compactness are mandatory.

FAQ

What is the maximum operating temperature range for the TLP5771(E)?

The TLP5771(E) is rated for continuous operation from -40°C to +110°C ambient temperature. This extended range supports deployment in sealed industrial enclosures and under-hood motor drive applications without thermal derating. All key parameters-including propagation delay, output current, and CMTI-are guaranteed across this full range per the datasheet's Electrical Characteristics table.

Does the TLP5771(E) require an external bypass capacitor?

Yes, a 1 µF ceramic bypass capacitor must be placed between pin 6 (VCC) and pin 4 (GND) within 1 cm of the pins. This stabilizes the internal high-gain amplifier and prevents oscillation or improper switching-especially critical during fast transients. Omitting it may cause erratic output behavior or failure to meet specified propagation delay and CMTI performance.

What safety certifications does the TLP5771(E) hold?

The TLP5771(E) is UL-recognized (UL 1577, File No. E67349), cUL-recognized (CSA 5A), VDE-approved for EN IEC 60747-5-5 and EN IEC 62368-1 (with D4 option), and CQC-approved per GB4943.1. These certifications validate its reinforced insulation barrier at 5000 Vrms for 60 seconds, enabling use in Class II equipment and safety-critical industrial systems.

Can the TLP5771(E) drive IGBT gates directly?

Yes, the TLP5771(E) can drive small-to-medium IGBT gates directly due to its ±1.0 A peak output current and rail-to-rail voltage swing. It is commonly used in <10 kW inverters and servo drives where gate charge requirements fall within its output capability. For larger IGBTs, an external gate driver stage is recommended to ensure adequate dV/dt control and Miller clamping.

What is the purpose of pin 2 (N.C.) on the TLP5771(E)?

Pin 2 is a no-connect terminal-internally unconnected and electrically isolated from all other pins. It must remain unconnected on the PCB: no trace, no pad, no solder mask opening. This pin exists for mechanical symmetry and package compatibility; routing or terminating it violates the isolation barrier design and risks compromising creepage distance or safety certification.