TLP5772(E

Series:	--
Part Status:	Active
Technology:	Optical Coupling
Number of Channels:	1
Voltage - Isolation:	5000Vrms
Common Mode Transient Immunity (Min):	35kV/µs
Propagation Delay tpLH / tpHL (Max):	150ns, 150ns
Pulse Width Distortion (Max):	50ns
Rise / Fall Time (Typ):	15ns, 8ns
Current - Output High, Low:	2.5A, 2.5A
Current - Peak Output:	2.5A
Voltage - Forward (Vf) (Typ):	1.65V
Current - DC Forward (If) (Max):	8mA
Voltage - Supply:	10 V ~ 30 V
Operating Temperature:	-40°C ~ 110°C
Approvals:	CQC, cUR, UR, VDE

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Isolators - Gate Drivers: E Application Field and Working Principle

Isolators and gate drivers are essential components used in modern electronics. They are used to protect sensitive components from electrical interference, especially in more complex circuits. In this article, the focus will be on the application field and working principle of one specific isolator - the TLP5772E.The TLP5772E isolator, manufactured by Toshiba Corporation, is a 3-channel, monolithic, isolated gate driver. It is used to drive and protect FETs and IGBTs in power control applications. It has a Galvanic Isolation Barrier on-chip and a very wide operating voltage range of 14V to 80V. This makes it suitable for high-power applications in the automotive and industrial fields.The TLP5772E has several functional features to ensure reliable operation. It has an output current rating of up to 2A, a fast rise/fall time, a voltage transient immune range of +/- 8V, and a 1.7rms typical insulation withstand voltage. These features enable the isolator to provide reliable interface between low-voltage control signals and high-voltage power switching circuits.The working principle of the TLP5772E is based on the concept of opto-couplers. An opto-coupler consists of an infrared LED and a photodetector, separated by a barrier to ensure that no electrical current can pass between them. The LED element of the opto-coupler is driven by the input signal, and the photodetector detects the light input. The detected signal is then output as a voltage to drive the gate of the power device.The TLP5772E combines this opto-coupler-based principle with an on-chip Galvanic Isolation Barrier to protect the connecting circuits from the input/output impedance seen at the device inputs and outputs. In addition, an isolated power supply allows the TLP5772E to operate independently from the ground or reference potential of the input circuit.The combination of these features enables the TLP5772E to provide reliable isolation and protection of the connecting circuits without compromising performance. Furthermore, its wide operating voltage range and its fast response time make it ideal for use in applications requiring high performance and high reliability.In summary, the TLP5772E isolator is a useful component for power control applications. Its Galvanic Isolation Barrier, fast response time, and wide operating voltage range provide reliable protection of the connecting components without compromising performance. Furthermore, it is easy to integrate into existing systems due to its opto-coupler-based principle. This makes it a great choice for a variety of applications, especially in those associated with high power and reliability.

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