The TLP620(D4-GR) is a four-pin photocoupler from Toshiba Semiconductor and Storage. It consists of an infrared emitting diode optically coupled to a phototransistor. It is commonly used for electrical isolation and signal transmission between circuits with different voltage levels or ground potentials. This device provides a high level of isolation, protecting sensitive circuits from voltage spikes and noise.

Applications

• Programmable Logic Controllers (PLCs)
• Microcomputer interface
• Signal transmission between different potential circuits
• Noise suppression in control circuits
• Power supply isolation

Features

• High isolation voltage (typically 5000 Vrms)
• Compact DIP-4 package
• High collector-emitter voltage (typically 80 V)
• Current transfer ratio (CTR) of 50% to 600%

Benefits

• Enhanced safety and protection against high voltage transients
• Easy integration into various circuit designs
• Versatile application in a wide range of electronic systems
• Improved signal integrity by isolating noise and ground loops

Technical Specifications

The TLP620(D4-GR) features a high isolation voltage of typically 5000 Vrms, providing robust electrical isolation between the input and output circuits. It is housed in a compact DIP-4 package, making it easy to integrate into various circuit boards. The collector-emitter voltage is typically 80 V, allowing it to be used in a wide range of applications. The current transfer ratio (CTR) ranges from 50% to 600%, providing flexibility in circuit design. The forward current (IF) is typically 50 mA, and the collector current (IC) is typically 50 mA. The operating temperature range is typically -55°C to +110°C, making it suitable for use in harsh environments. The 'D4-GR' likely refers to specific testing or binning criteria related to CTR.

The TLP620(D4-GR) is a reliable and versatile photocoupler suitable for a wide range of applications requiring electrical isolation and signal transmission. Its high isolation voltage, compact package, and wide operating temperature range make it a valuable component in many electronic systems. It's nearly identical to the TLP620(D4-GR,F), but it may or may not be Pb-free (RoHS compliant). The 'F' in the other part number explicitly denotes Pb-Free compliance.