SI8233AB-C-IM

Rise / Fall Time (Typ):	12ns, 12ns (Max)
Approvals:	CQC, CSA, UR, VDE
Supplier Device Package:	14-LGA (5x5)
Package / Case:	14-VFLGA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply:	6.5 V ~ 24 V
Voltage - Forward (Vf) (Typ):	--
Current - Peak Output:	4A
Current - Output High, Low:	2A, 4A
Series:	Automotive, AEC-Q100
Pulse Width Distortion (Max):	5.6ns
Propagation Delay tpLH / tpHL (Max):	60ns, 60ns
Common Mode Transient Immunity (Min):	20kV/µs
Voltage - Isolation:	2500Vrms
Number of Channels:	2
Technology:	Capacitive Coupling
Part Status:	Obsolete
Packaging:	Tube

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What is SI8233AB-C-IM?

SI8233AB-C-IM is an optically isolated gate driver, manufactured by Silicon Labs. It devices consist of an LED, which is surrounded by an optically coupled IC. It is an insulated-gate bipolar transistor (IGBT) gate driver and an integrated isolation module. The device is designed to drive IGBTs in half-bridge, totem-pole, and bridge configurations.

Application Field

SI8233AB-C-IM is widely used in applications such as solar inverters, high-voltage motor drives, Welding, Motor control, UPS, and Power conversion.Due to its high isolation voltage of 2.5kVrms, SI8233AB-C-IM can be used in a variety of isolated power industries, such as AC/DC converters, Industrial Switching applications, Automotive, Automotive DCDC converters, Industrial Automation, and High-voltage Motor drives.

Working Principle

The SI8233AB-C-IM isolator gate driver is designed to drive IGBTs in half-bridge, totem-pole and bridge configurations. The device consists of an LED and an optically isolated IC. As the LED is illuminated, light is directed towards the photodetector, which converts the incident light into a current. This current is amplified and drives the symmetrical output stage.The output stage is designed to drive the low-side IGBT and is low impedance, current-limited, and optionally high impedance or short-circuit protected. The output stage is controlled by an exponential decay circuit.The high-side gate driver is symmetrical, low impedance, and optionally protected from short-circuits. The high-side driver reference pin allows the device to be operated over a wide voltage range.The device also features an integrated fault and diagnostic feature, allowing it to be used in fault protection loop systems.

Conclusion

The SI8233AB-C-IM isolator gate driver is a highly reliable and efficient device, designed to drive IGBTs in half-bridge, totem-pole, and bridge configurations. Its high isolation voltage and wide operating voltage range make it suitable for a variety of isolated power industries, such as AC/DC converters, Industrial Switching applications, Automotive, Automotive DCDC converters, Industrial Automation, and High-voltage Motor drives. It also features integrated fault and diagnostic capabilities, making it suitable for fault protection loop systems.

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