Toshiba Semiconductor and Storage TLP5754H(D4LF4,E

Overview

TLP5754H(D4LF4,E) from Toshiba Electronic Devices & Storage Corporation is a high-speed, reinforced-insulation photocoupler with integrated photo-IC output stage, designed for gate driving of power MOSFETs and IGBTs in industrial inverters and home appliance motor controls. It delivers ±4.0 A peak output current, 150 ns max propagation delay, ±35 kV/µs common-mode transient immunity, and operates across –40 °C to +125 °C with 15–30 V supply voltage.

For engineers reviewing the TLP5754H(D4LF4,E) datasheet, TLP5754H(D4LF4,E) pinout, TLP5754H(D4LF4,E) application, or TLP5754H(D4LF4,E) equivalent, this device is selected for high-reliability isolated gate drive where rail-to-rail output, UVLO protection, and VDE-certified reinforced insulation (EN IEC 60747-5-5) are required in compact SO6L packaging.

Technical Context

The TLP5754H(D4LF4,E) integrates an infrared LED input stage with a monolithic photo-IC detector featuring totem-pole (buffer logic) output architecture. Its internal Faraday shield ensures guaranteed ±35 kV/µs CMTI performance, while the rail-to-rail output enables direct interfacing with power device gates without external level-shifting.

This variant includes the D4 option - certified to EN IEC 60747-5-5 for reinforced insulation - and LF4 lead-forming for through-hole mounting compatibility. It requires a mandatory 1 µF bypass capacitor between VCC (Pin 6) and GND (Pin 4) to stabilize high-gain amplifier operation and prevent switching instability.

Key Specifications

Pinout & Package

Package: 6-pin SO6L (Toshiba package code 11-4N101A), surface-mount with LF4 wide-forming leads for through-hole compatibility; 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 high-speed isolated gate driver applications.

Compared with TLP5754H(D4LF4,E), the TLP5754H(TP4,E) offers identical performance without VDE certification, while the SI8261AD-D-IS trades isolation robustness and integration for higher data rate flexibility - neither is pin-compatible, and both require PCB redesign.

Availability

TLP5754H(D4LF4,E) is available at Aetrix Electronics and suitable for industrial inverters, induction cooktops, and air conditioner inverter modules requiring stable component supply with long-term lifecycle assurance and traceable sourcing.

Supply support for TLP5754H(D4LF4,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 high-reliability semiconductor components for industrial, automotive, and consumer applications, with core expertise in power devices, logic ICs, and optoelectronics.

The TLP5754H series belongs to Toshiba's high-speed photocoupler product line, engineered specifically for robust isolated gate driving in high-noise, high-voltage power conversion systems where safety certification and thermal resilience are critical.

FAQ

What is the isolation rating and safety certification status of the TLP5754H(D4LF4,E)?

The TLP5754H(D4LF4,E) provides 5000 Vrms minimum isolation voltage and is certified to EN IEC 60747-5-5 for reinforced insulation under the D4 option. It also carries UL 1577 (File E67349), cUL CSA Component Acceptance (File E67349), and CQC GB4943.1 approvals. These certifications validate its use in safety-critical barrier applications without additional isolation components.

Does the TLP5754H(D4LF4,E) require an external bypass capacitor, and where must it be placed?

Yes, the TLP5754H(D4LF4,E) requires a 1 µF ceramic bypass capacitor connected between Pin 6 (VCC) and Pin 4 (GND). Toshiba specifies that this capacitor must be placed within 1 cm of both pins to stabilize the internal high-gain amplifier and prevent oscillation or improper switching behavior - omission or poor placement risks functional failure.

What is the meaning of "LF4" in the TLP5754H(D4LF4,E) part number?

The "LF4" suffix in TLP5754H(D4LF4,E) denotes the lead-forming option: wide-forming leads compatible with through-hole mounting while retaining the SO6L package outline. This allows manual or wave-solder assembly in legacy production lines without requiring SMT reflow infrastructure - the device remains functionally identical to surface-mount variants.

Can the TLP5754H(D4LF4,E) drive both high-side and low-side IGBTs directly?

Yes, the TLP5754H(D4LF4,E) features rail-to-rail totem-pole output capable of sourcing and sinking ±4.0 A peak current, enabling direct gate drive of both high-side and low-side IGBTs or MOSFETs. Its output voltage swing spans from near-GND to near-VCC (up to 30 V), eliminating the need for external pull-up resistors or discrete driver stages in most configurations.

How does the UVLO function protect the TLP5754H(D4LF4,E) output stage?

The TLP5754H(D4LF4,E) incorporates under-voltage lockout (UVLO) with 12.1 V turn-on threshold and 11.1 V turn-off hysteresis. When VCC drops below 11.1 V, the output is forced low to prevent partial or weak gate drive that could cause power device overheating or shoot-through. This ensures safe operation during power-up, brown-out, or supply fault conditions.