Toshiba Semiconductor and Storage TLP152(E

Overview

TLP152 from Toshiba Electronic Devices & Storage Corporation is a high-speed, high-isolation photocoupler with infrared LED input and integrated photo-IC output in SO6 package. It delivers ±2.5 A peak output current, 170–190 ns propagation delay, and ±20 kV/µs common-mode transient immunity - enabling direct gate driving of power MOSFETs and IGBTs in industrial inverters.

For engineers reviewing the TLP152 datasheet, TLP152 pinout, TLP152 application, or TLP152 equivalent, this device is selected for high-noise industrial motor control, isolated gate drive design, and safety-critical isolation where fast switching, robust CMTI, and 3750 Vrms isolation are required.

Technical Context

The TLP152 integrates an infrared LED optically coupled to a monolithic photodetector IC featuring internal shielding and totem-pole output stage. Its architecture enables bidirectional current sourcing/sinking (±2.5 A) without external buffers, supporting direct connection to gate terminals of discrete power switches.

It operates across 10–30 V supply voltage with UVLO protection, requires a mandatory 0.1 µF bypass capacitor between VCC (Pin 6) and GND (Pin 4), and achieves logic-level output transitions under fast-rising/falling input edges (<0.5 µs). The device meets EN IEC 60747-5-5 when specified with Option V4.

Key Specifications

Pinout & Package

Package: SO6 (TOSHIBA designation 11-4L1S), surface-mount, creepage/clearance ≥5.0 mm, isolation thickness ≥0.4 mm, weight 0.08 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ACPL-332J and SI8261BBC-C-ISR, the TLP152 offers balanced performance: superior CMTI (±20 kV/µs vs ≤15 kV/µs), integrated UVLO, and true plug-and-play gate drive without external components - making it optimal for industrial inverter gate drive where reliability under electrical stress is paramount.

Availability

TLP152 is available at Aetrix Electronics and suitable for industrial inverters, MOSFET/IGBT gate drivers, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and certified safety isolation.

Supply support for TLP152 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 optoelectronics, with global manufacturing and quality certification infrastructure.

The TLP152 belongs to Toshiba's high-reliability photocoupler product line, designed specifically for isolated gate driving in industrial motor control, renewable energy inverters, and power conversion systems demanding reinforced insulation and high noise immunity.

FAQ

What is the recommended bypass capacitor for TLP152 and where must it be placed?

A 0.1 µF ceramic capacitor is mandatory between Pin 6 (VCC) and Pin 4 (GND) of the TLP152 to stabilize the internal photodetector IC and prevent oscillation or improper switching. This capacitor must be placed within 1 cm of those pins to minimize parasitic inductance - failure to install it may cause erratic output behavior, especially under high-speed or high-noise conditions. The TLP152 datasheet explicitly states that operation without this capacitor is not guaranteed.

Does TLP152 support both sourcing and sinking current at its output?

Yes, the TLP152 features a totem-pole output stage that actively sources and sinks current - delivering up to +2.5 A when driving high-side gates and −2.5 A when pulling gates low. This dual-current capability eliminates the need for external push-pull drivers and enables direct connection to the gate of power MOSFETs or IGBTs, simplifying gate drive circuitry and improving switching speed consistency in the TLP152-based design.

What safety certifications does TLP152 hold, and what do they mean for system design?

The TLP152 is UL-recognized (UL 1577), cUL-recognized (CSA Component Acceptance Service No.5A), VDE-approved (EN IEC 60747-5-5 and EN IEC 62368-1), and CQC-approved (GB4943.1). These certifications confirm its suitability for reinforced insulation in end equipment - meaning it can serve as a single isolation barrier meeting basic and supplementary insulation requirements in industrial and medical power systems, reducing design validation effort for safety compliance.

Can TLP152 operate reliably at 100°C ambient temperature?

Yes, the TLP152 is fully rated for continuous operation from −40°C to +100°C ambient temperature, with all key parameters - including propagation delay, output current, and CMTI - specified across this full range. Its thermal design and internal shielding ensure stable performance in enclosed industrial enclosures or near heat-generating power stages, making it appropriate for high-temperature deployment scenarios where the TLP152 remains within its absolute maximum ratings.

How does the UVLO function in TLP152 protect downstream power devices?

The TLP152 incorporates internal undervoltage lockout (UVLO) that disables the output stage when VCC drops below approximately 7.5 V - preventing partial or weak gate drive that could cause linear-mode operation and thermal runaway in MOSFETs or IGBTs. This feature ensures safe turn-off during supply brownouts or startup sequencing, adding a critical layer of protection absent in many competing photocouplers, and is integral to robust TLP152 gate driver implementations.