SI8231AB-D-IS1R

Rise / Fall Time (Typ):	20ns, 20ns (Max)
Approvals:	CQC, CSA, UR, VDE
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply:	6.5 V ~ 24 V
Voltage - Forward (Vf) (Typ):	--
Current - Peak Output:	500mA
Current - Output High, Low:	250mA, 500mA
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:	Active
Packaging:	Tape & Reel (TR)

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Isolators - Gate Drivers

The SI8231AB-D-IS1R is a high-performance isolator product from Vishay Intertechnology, Inc. It combines a digital isolation module and a gate driver module into one compact package. The digital isolation module provides galvanic isolation up to 8 kV (RMS) for system protection and signal integrity. It can help save board space, reduce noise, improve system performance, and reduce EMI/RFI interference. The gate driver module features logic level inputs, low power consumption, and short propagation delay.

Application Field

The SI8231AB-D-IS1R can be used in a wide variety of applications, including industrial equipment, medical devices, power supplies, motor control, solar inverters, and automation. It can be used for the isolation and amplification of digital and switching signals, and is also suitable for driving large loads such as voltage regulators, MOSFETs, and IGBTs. Its high-speed optocoupler can also be used for inter-board isolation applications.

Working Principle

The SI8231AB-D-IS1R operates on the principle of isolating and amplifying a signal using an optocoupler. The optocoupler is a device consisting of a light-emitting diode and a phototransistor. When an input voltage is applied to the diode, it emits light, which is received by the phototransistor and amplified to the output voltage. This voltage is then converted to a TTL-level signal.The digital isolation module and gate driver module together provide the full protection that is needed in many applications. The digital isolation module isolates signals from the primary and secondary sides of the system, and protects the system from surges and transients. The gate driver module further amplifies the signal, allowing it to control larger loads.The combination of these two modules helps improve system performance and ensures optimal signal integrity. It also provides a cost-effective solution for protection against EMI and RFI interference.

Conclusion

The SI8231AB-D-IS1R is a versatile isolator and gate driver product that can be used for a variety of applications. Its digital isolation module provides galvanic isolation up to 8 kV (RMS), while the gate driver module amplifies the signal and enables the control of larger loads. Together, they form a compact package that helps improve system performance, reduce noise, and improve signal integrity. The combination of digital isolation and gate driving capabilities makes the SI8231AB-D-IS1R the perfect choice for isolation and amplification applications.

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