Toshiba Semiconductor and Storage TLP352F(D4,F)

Overview

TLP352F(D4,F) from Toshiba Electronic Devices & Storage Corporation is a high-speed, high-isolation photocoupler with GaAlAs infrared LED and integrated photo IC output stage in an 8-pin DIP package. It delivers ±2.5 A peak output current, 200 ns max propagation delay, ±20 kV/µs common-mode transient immunity, and operates from -40°C to +125°C - designed specifically for driving IGBTs and power MOSFETs in industrial inverters and induction cooktops.

For engineers reviewing the TLP352F(D4,F) datasheet, TLP352F(D4,F) pinout, TLP352F(D4,F) application, or TLP352F(D4,F) equivalent, key selection criteria include guaranteed CMRI at 125°C, totem-pole output sourcing/sinking capability, EN60747-5-5 compliance (via D4 option), and isolation voltage of 3750 Vrms - all critical for gate driver reliability in high-noise motor control systems.

Technical Context

The TLP352F(D4,F) integrates a GaAlAs LED optically coupled to a high-gain, high-speed photodetector IC with internal Faraday shield. Its totem-pole output stage enables bidirectional current drive (±2.5 A), supporting both high-side and low-side switching configurations without external pull-up/pull-down components.

It features under-voltage lockout (UVLO) with 11.0–13.5 V threshold range and 1.5 V hysteresis, ensuring robust operation during supply ramp-up. The device requires a 0.1 µF bypass capacitor between pins 8 (VCC) and 5 (GND), placed within 1 cm, to stabilize the internal amplifier and prevent improper switching.

Key Specifications

Pinout & Package

Package: 8-pin DIP (through-hole), 10.16 mm pitch, creepage/clearance ≥8.0 mm - optimized for high-voltage isolation in industrial PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ACPL-332J and SI8261BD-D-IS, the TLP352F(D4,F) provides superior long-term reliability via optical coupling, certified EN60747-5-5 isolation, and integrated UVLO - making it optimal for safety-compliant industrial motor drives where field lifetime exceeds 10 years.

Availability

TLP352F(D4,F) is available at Aetrix Electronics and suitable for industrial inverters, IGBT gate drivers, and induction cooktops requiring stable component supply with full safety certification traceability.

Supply support for TLP352F(D4,F) 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 power systems, with over 50 years of optocoupler innovation.

The TLP352 family targets high-noise, high-voltage gate driving applications - engineered to replace discrete opto-transistor solutions with integrated, temperature-stable, safety-certified alternatives for motor control and power conversion.

FAQ

What safety certifications does the TLP352F(D4,F) hold?

The TLP352F(D4,F) is qualified to EN60747-5-5 (via D4 option), UL1577 (File No. E67349), and cUL CSA Component Acceptance Service (File No. E67349). These certifications validate its reinforced isolation performance, including 3750 Vrms withstand voltage and 8.0 mm creepage distance - essential for compliance in industrial equipment meeting IEC 61800-5-1 and IEC 62109 standards. The D4 marking confirms EN60747-5-5 qualification.

Does the TLP352F(D4,F) require an external bypass capacitor?

Yes, the TLP352F(D4,F) requires a 0.1 µF ceramic bypass capacitor connected between pin 8 (VCC) and pin 5 (GND), placed within 1 cm of the pins. This capacitor stabilizes the internal high-gain amplifier and prevents improper switching or oscillation - omission causes unreliable output behavior, especially under high-temperature or high-noise conditions. The requirement is explicitly stated in Toshiba's recommended operating conditions and test circuit notes.

What is the maximum allowable rise slope for the VCC supply of the TLP352F(D4,F)?

The rising slope of the VCC supply for the TLP352F(D4,F) must be limited to ≤3.0 V/µs. Exceeding this rate risks unstable operation of the internal detector circuitry due to insufficient settling time for internal bias generation. This specification is documented in Section 9 (Recommended Operating Conditions) of the official Toshiba datasheet and applies across the full -40°C to +125°C operating temperature range.

Can the TLP352F(D4,F) drive both high-side and low-side IGBTs directly?

Yes, the TLP352F(D4,F) can directly drive both high-side and low-side IGBTs using its totem-pole output (pin 6). It sources up to +2.5 A and sinks up to -2.5 A, eliminating the need for external push-pull buffers. Its ±20 kV/µs common-mode transient immunity ensures noise-free switching even when referenced to rapidly switching high-voltage nodes - confirmed by Toshiba's switching characteristics data and application notes for inverter half-bridge topologies.

What is the purpose of the NC pins (1, 4, 7) on the TLP352F(D4,F)?

Pins 1, 4, and 7 on the TLP352F(D4,F) are internally unconnected (NC) and serve no electrical function. They must remain unconnected on the PCB - no routing, grounding, or capacitive coupling is permitted. This is specified in Toshiba's Pin Assignment table and verified in the internal circuit diagram. Leaving them floating is safe; connecting them may compromise isolation integrity or induce parasitic coupling paths.