HCNW3120-500E Isolators

Current - Output High, Low:	2A, 2A
Approvals:	CSA, IEC/EN/DIN, UR
Supplier Device Package:	8-DIP Gull Wing
Package / Case:	8-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 100°C
Voltage - Supply:	15 V ~ 30 V
Current - DC Forward (If) (Max):	25mA
Voltage - Forward (Vf) (Typ):	1.6V
Current - Peak Output:	2.5A
Series:	--
Rise / Fall Time (Typ):	100ns, 100ns
Pulse Width Distortion (Max):	300ns
Propagation Delay tpLH / tpHL (Max):	500ns, 500ns
Common Mode Transient Immunity (Min):	25kV/µs
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Technology:	Optical Coupling
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionThe HCNW3120-500E is a digital isolator and gate driver family from Broadcom, Inc. This isolator is designed to provide digital isolation and signal conditioning for factory automation, process control, safety, home/metering, and automotive applications requiring high-temperature operation.Overview of the IsolatorThe HCNW3120-500E is a monolithic, double-channel, digital isolator that provides a wide range of device capabilities and features. This isolator uses a bipolar transistor process and includes an isolation barrier, two isolated inputs, two isolated outputs, a ground lead connection, and a temperature range of -40 to +125°C.The isolation barrier is designed to isolate the device\'s two channels from each other. The two isolated inputs are designed to accept digital signals at speeds up to 5 MHz. The two isolated outputs are designed to drive loads up to 200mA. The ground lead connection is used to provide an interface between the ground plane and the isolation barrier.Working PrincipleThe HCNW3120-500E is designed to transfer digital signals across its isolation barrier while maintaining isolation between the two channels. This isolator utilizes a photocoupler to provide the electrical isolation. The photocoupler consists of two components: an emitter and a receiver. The emitter is driven with an input signal, and the receiver produces an output signal depending on the input signal.In operation, the HCNW3120-500E uses a two-stage process to transfer digital signals across its isolation barrier. In the first stage, the output signal from the emitter is driven into a fast switching receiver. The receiver then produces a pulse-width-modulated (PWM) signal, which is used to control the switching of a 400V switching transistor. The transistor then drives the output signal across the isolation barrier.The PWM signal is produced by comparing the input signal to a reference signal. This reference signal is generated by a Voltage Controlled Oscillator, which is also driven by the input signal. The PWM signal is then used to switch the transistor on and off, thus driving the signal across the isolation barrier.BenefitsThe HCNW3120-500E benefits from several features that make it an ideal solution for demanding applications that require minimal power consumption and noise immunity. The isolation barrier provides up to 2500V of galvanic isolation, ensuring that signals are transferred without interference from noise and other external signals. The isolator also features a fast switching time, making it suitable for high speed applications. In addition, the HCNW3120-500E can be used in temperatures from -40 to +125°C, making it an ideal solution for high temperature applications.ConclusionThe HCNW3120-500E isolator from Broadcom, Inc. is a monolithic, double-channel, digital isolator that provides a wide range of features and capabilities. This isolator utilizes a photocoupler to provide up to 2500V of galvanic isolation, ensuring that signals are transferred without interference from noise and other external signals. The HCNW3120-500E can also be used in temperatures from -40 to +125°C, making it an ideal solution for high temperature applications.

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