Product Overview

The TLP292(BL-TPL,E(T) is a high-performance optocoupler designed for high electrical isolation and bidirectional signal transmission, featuring a SO4 surface-mount package with two antiparallel infrared LEDs and a phototransistor for AC/DC bidirectional input. With a 3750Vrms high isolation voltage, -55℃~125℃ ultra-wide operating temperature range, and 200% minimum Current Transfer Ratio (CTR) in BL rank, it is ideal for high-density PCB layouts, effectively isolating high-voltage interference in industrial control and switching power supplies.

Key Features

• Exceptional High Isolation: Provides a 3750Vrms minimum isolation voltage to block grid surges and high-frequency noise, meeting industrial safety standards.
• Bidirectional Input Compatibility: Supports both AC and DC input, adapting to complex signal environments and simplifying circuit design.
• Ultra-Wide Temperature Range: Operates stably from -55℃ to 125℃, eliminating the need for additional temperature control in extreme conditions.
• High CTR in BL Rank: Achieves a 200% minimum CTR (BL rank), ensuring reliable transmission of weak signals and enhancing circuit sensitivity.
• Multiple International Certifications: Certified by UL1577, cUL, VDE, CQC, and compliant with EN 60747-5-5, ensuring global safety and regulatory compliance.

Technical Specifications

Typical Applications

• Switching Power Supplies: Isolates feedback control signals in flyback/forward converters, suppressing EMI between high and low voltage sides to improve efficiency and stability.
• Industrial Automation: Used for I/O isolation in PLCs and inverters, preventing ground loop interference and ensuring precise control signal transmission.
• Communication & Measurement Devices: Isolates differential signals in RS-485 and CAN buses, reducing common-mode noise in long-line transmission for accurate data communication.
• New Energy Equipment: Suitable for signal isolation in photovoltaic inverters and energy storage systems, withstanding wide temperature and voltage fluctuations.
• Consumer Electronics & Home Appliances: Isolates microcontrollers from high-voltage drive modules in smart home devices, protecting chips from voltage surges and extending lifespan.

Why Choose TLP292(BL-TPL,E(T)？

• Ultra-High Isolation Voltage: 3750Vrms isolation voltage provides dual safety protection for high-voltage applications.
• Flexible Bidirectional Input: Supports AC/DC signals without polarity restriction, reducing design complexity.
• Wide Temperature Reliability: Stable operation from -55℃ to 125℃ with less than 10% CTR degradation after 1000 hours at 125℃.
• High CTR for Weak Signals: 200% minimum CTR in BL rank ensures reliable transmission even at low input currents, ideal for low-power scenarios.
• Compact Package & Easy Soldering: SO4 package saves PCB space and supports 260℃ reflow soldering, compatible with automated manufacturing processes.

SUNTOP COMPANY INTRODUCTION

Founded in 2000, Suntop is one of the leading global distributors of electronic
components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost.
As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.