Toshiba Semiconductor and Storage TLP5751(D4-TP4,E

Overview

TLP5751(D4-TP4,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 semiconductors in high-noise industrial inverters and home appliance motor controls. It delivers ±1.0 A peak output current, 150 ns max propagation delay, ±35 kV/µs common-mode transient immunity, and operates across –40°C to +110°C with 15–30 V supply voltage.

For engineers reviewing the TLP5751(D4-TP4,E) datasheet, TLP5751(D4-TP4,E) pinout, TLP5751(D4-TP4,E) application, or TLP5751(D4-TP4,E) equivalent, this page provides verified technical context, safety-certified isolation parameters, rail-to-rail totem-pole output behavior, and real-world design constraints including mandatory 1 µF bypass capacitor placement between VCC and GND.

Technical Context

The TLP5751(D4-TP4,E) integrates an infrared LED input stage with a monolithic high-gain photodetector and totem-pole buffer output - enabling direct drive of MOSFET/IGBT gates without external amplification. Its internal Faraday shield ensures guaranteed ±35 kV/µs CMTI performance under fast-switching conditions typical in induction cooktops and air conditioner inverters.

This device implements a logic-level truth table (H/L input → H/L output), supports UVLO protection with 12.1 V turn-on and 11.1 V turn-off thresholds, and requires strict layout adherence: 1 µF ceramic capacitor must be placed ≤1 cm between pins 6 (VCC) and 4 (GND) to stabilize the high-gain amplifier and prevent switching failure.

Key Specifications

Pinout & Package

Package: 6-pin SO6L (TOSHIBA designation 11-4N1A), surface-mount, creepage/clearance ≥8.0 mm, isolation thickness ≥0.4 mm, height ≤2.3 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLP5751(D4-TP4,E), the TLP5752 offers dual-channel integration at the cost of non-interchangeable pinout, while the ACPL-332J trades CMTI robustness for higher peak current - neither is a drop-in replacement, and both require layout and validation changes.

Availability

TLP5751(D4-TP4,E) is available at Aetrix Electronics and suitable for induction cooktop control, industrial inverter drive, and air conditioner inverter applications requiring stable component supply, long-term lifecycle support, and certified reinforced insulation.

Supply support for TLP5751(D4-TP4,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 is a Japanese semiconductor manufacturer specializing in power devices, logic ICs, and optoelectronics, with decades of expertise in isolation technology and industrial-grade reliability.

The TLP5751 belongs to Toshiba's high-speed photocoupler product line, engineered specifically for robust gate driving in high-noise, safety-critical inverter systems - emphasizing CMTI performance, reinforced insulation, and compact surface-mount packaging.

FAQ

What safety certifications apply to the TLP5751(D4-TP4,E)?

The TLP5751(D4-TP4,E) carries the D4 option, certifying compliance with VDE EN IEC 60747-5-5 for reinforced insulation. It is also UL-recognized (UL 1577, File No. E67349), cUL-recognized (CSA 5A), and CQC-approved (GB4943.1). These certifications validate its use in mains-connected equipment requiring double or reinforced insulation barriers - essential for TLP5751(D4-TP4,E) deployment in induction cooktops and HVAC inverters.

Why is a 1 µF capacitor required between pins 6 and 4 of the TLP5751(D4-TP4,E)?

A 1 µF ceramic capacitor must be placed within 1 cm between pin 6 (VCC) and pin 4 (GND) of the TLP5751(D4-TP4,E) to stabilize the internal high-gain linear amplifier. Without it, the TLP5751(D4-TP4,E) may exhibit oscillation or fail to switch reliably under load. This bypass capacitor suppresses supply ripple and transient noise that could otherwise disrupt the photodetector's output stage - a mandatory design requirement explicitly stated in the TLP5751(D4-TP4,E) datasheet.

Can the TLP5751(D4-TP4,E) drive IGBT gates directly?

Yes, the TLP5751(D4-TP4,E) can drive IGBT gates directly: its ±1.0 A peak output current and rail-to-rail totem-pole output eliminate the need for external buffer transistors in medium-power applications (e.g., <50 A IGBT modules). However, gate resistor selection must account for the TLP5751(D4-TP4,E)'s 150 ns max propagation delay and ensure gate charge time aligns with system switching frequency - especially critical in 20–50 kHz inverter topologies.

What is the meaning of "D4-TP4" in the TLP5751(D4-TP4,E) part number?

In TLP5751(D4-TP4,E), "D4" denotes qualification to VDE EN IEC 60747-5-5 reinforced insulation standards; "TP4" specifies tape-and-reel packaging with 1500 pcs per reel and wide-forming lead option (LF4); "E" indicates RoHS-compliant, lead-free construction. This full suffix identifies a safety-certified, production-ready variant of the TLP5751(D4-TP4,E) optimized for automated SMT assembly and regulatory compliance in global markets.

How does the TLP5751(D4-TP4,E) handle common-mode transients?

The TLP5751(D4-TP4,E) incorporates an internal Faraday shield that guarantees ±35 kV/µs common-mode transient immunity (CMTI) - measured per EN IEC 60747-5-5. This allows the TLP5751(D4-TP4,E) to maintain correct logic output during rapid dV/dt events across its isolation barrier, such as those generated by SiC or fast IGBT switching in motor drives. The specification is tested at VCM = 1000 Vp-p with defined output voltage thresholds (VO > 26 V for CMH, VO < 1 V for CML), ensuring robustness in real-world inverter noise environments.