SI8285CD-IS

Rise / Fall Time (Typ):	5.5ns, 8.5ns
Approvals:	CQC, CSA, UR, VDE
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply:	12 V ~ 30 V
Voltage - Forward (Vf) (Typ):	--
Current - Peak Output:	4A
Current - Output High, Low:	2.5A, 3A
Series:	--
Pulse Width Distortion (Max):	5ns
Propagation Delay tpLH / tpHL (Max):	50ns, 50ns
Common Mode Transient Immunity (Min):	35kV/µs
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Technology:	Capacitive Coupling
Part Status:	Not For New Designs
Packaging:	Tube

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SI8285CD-IS isolators - gate drivers application field and working principle

The SI8285CD-IS is an intelligent, high-performance isolated gate driver. Its primary use is to interface between isolated and non-isolated power components, such as transistors, IGBTs, and high-voltage power switches. The SI8285CD-IS gate driver features high-speed drive & logic as well as high-side & low-side LED diagnostics, ensuring that processors and power devices have accurate, reliable control.

Application Fields

The SI8285CD-IS isolator-gate driver has a number of potential applications. In particular, it may be used in applications that require a safe & reliable interface between non-isolated and isolated components. It can provide flexibility when powering and controlling IGBT/power devices with either an isolated DC input or via an isolated and isolated AC input.Its primary use is to interface between isolated and non-isolated power components. This isolator-gate driver is commonly used when controlling high-voltage power switches. This driver enables the switching of fast pulses at high currents without the presence of a conductive medium, which allows it to safely power high-voltage switches. Additionally, it can be used to power a range of AC and DC control appliances, including alternating-current drivers, rectifiers, and inverters.

Working Principle

The SI8285CD-IS isolator-gate driver is built using solid-state technology and utilizes a Pass-Size isolation barrier to provide galvanic isolation between elements. When activated, the gate driver uses a switching transistor to transfer a direct current (DC) signal from a non-isolated component to an isolated component.The driver also utilizes an internal crossover detect circuit to detect when the load has changed from high to low. This prevents the output voltage of the device from overshooting, which can potentially damage vulnerable loads.The SI8285CD-IS gate driver is unique in that it can provide bidirectional control. When the device is connected to an isolated load that is powered by a DC source, it can both activate and deactivate outputs. This makes it highly useful in providing reliable control over a variety of processes.In addition to its DC control capabilities, the SI8285CD-IS gate driver can also handle both AC and DC power sources. This allows it to be used in more advanced applications where a more powerful and reliable power and control system is needed. The isolation barrier also helps to protect the output from power transients, surges, and low battery levels. This ensures the driver is reliable in environments where voltages that are out of spec can occur.The SI8285CD-IS gate driver is fast, efficient, and reliable. It provides a robust solution for controlling high-voltage power switches, AC and DC control appliances, and a variety of other applications.

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