TLP350(F)

Current - Output High, Low:	2A, 2A
Approvals:	UR
Supplier Device Package:	8-DIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 100°C
Voltage - Supply:	15 V ~ 30 V
Current - DC Forward (If) (Max):	20mA
Voltage - Forward (Vf) (Typ):	1.6V
Current - Peak Output:	2.5A
Series:	--
Rise / Fall Time (Typ):	15ns, 8ns
Pulse Width Distortion (Max):	--
Propagation Delay tpLH / tpHL (Max):	500ns, 500ns
Common Mode Transient Immunity (Min):	15kV/µs
Voltage - Isolation:	3750Vrms
Number of Channels:	1
Technology:	Optical Coupling
Part Status:	Active
Packaging:	Tube

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Introduction

The TLP350(F) is an isolator family of gate drivers manufactured by Toshiba. It was designed to provide a low-cost method for isolating logic signals from control circuits to allow signal transmission between MCUs or other digital logic systems. The TLP350(F) family is comprised of three different types of isolators, the TLP350F, the TLP360F, and the TLP350F-Q1.

Isolator Classification

The TLP350(F) family-type gate drivers can be classified as \'Isolators\'. Isolators are gate drivers used to send logic signals across a voltage gap with little to no risk of damaging either side of the connection due to voltage differences or electrostatic discharges. These Isolators also feature low power consumption and low propagation delay.

Applications

The TLP350(F) isolators can be used in many different applications:• Self-Powered Automotive Systems: These devices can be used to power electronic devices used in autonomous or semi-autonomous vehicles such as automobiles, drones, and other mobile platforms. Additionally, they are suitable for CAN bus and LIN bus networks used for communicating with external components and subsystems. • Industrial Control Systems: These devices can be used in various industrial control applications such as machinery, transport systems, and remote monitoring units. They offer a low cost and low latency solution for industrial system applications.• Low Power Embedded Systems: Isolators are often used in low power embedded systems such as wearable devices, medical equipment, and home automation systems. Their low propagation delay and low power consumption make them a great solution for low power environments.• Telecommunications: Isolators can be used in telecommunication systems such as cellular networks and Wi-Fi access points. They offer a low cost solution for signal transmission and isolation.

Working Principle

The TLP350(F) isolators work using a transformer-based isolation system. The input signal is sent through an opto-isolator, which is then converted to a signal that can be sent across isolation barriers. The signal then passes through a transformer, which performs the actual isolation. The transformer has two coils, one side is connected to the input circuit and the other is connected to the output circuit. The two coils are then magnetically linked, allowing the signal to pass through the isolation barrier without electrical interference. The isolators feature dual-inputs, which allows them to receive two input signals and send one output signal. The combination of the two signals is logically ANDed or ORed at the output. The devices also feature a fault-protection circuit and a power-monitoring circuit. The fault protection circuit monitors the input and output channels, providing an effective safeguard against false signals. The power monitoring circuit regulates the output voltage, making sure the output remains stable even when the input voltage changes.

Conclusion

The TLP350(F) isolator family is a low-cost solution for signal transmission and isolation in various applications. These gate drivers provide a low power consumption and have a low propagation delay, making them an ideal solution for low power embedded systems and industrial control systems. They use a transformer-based isolation system and feature a fault-protection and power-monitoring system for protecting both the input and output circuits.

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