The SCM3725ASA/SCM3728ASA digital isolators by using maturated standard semiconductor CMOS technology and Capacitancepulseisolationtechnology, these isolation components provide outstanding performance characteristics and reliability superior to alternatives such as optocouplerdevices and other integrated isolators.
Capacitance pulse isolation technology is a new generation digital isolator technology . It uses the principle of capacitor voltage divider totransmitvoltage signal directly cross the isolator capacitor without signal modulation and demodulation.
The SCM3725ASA/SCM3728ASA isolator data channels are independent and different models have different transmission directions withawithstand voltage rating of 3 kV rms and the data rate from DC up to 10Mbps . The devices operate with the supply voltage on either siderangingfrom3.0 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolationbarrier. Thefail-safe state is available in which the outputs transition to a preset state when the input power supply is not applied.
SCM3725ASA VS SCM3728ASA | ||||||||
Model | Power supply range(V) | Data rate | Channel number | Output channel number | Withstand voltage(kV rms) | Default output | Package option | Pin number |
SCM3725ASA | 3.0~5.5 | 10Mbps | 2 | 1 | 3 | high | SOP | 8 |
SCM3728ASA | 3.0~5.5 | 10Mbps | 2 | 2 | 3 | high | SOP | 8 |
SCM3725ASA - Dual-ChannelDigital Isolators | |
Series | SCM3725A |
Input voltage range(Vdc) | '3~5.5 |
communication rate(Mbps) | '10 |
Isolation withstand voltage | 3000VAC |
channels | 2 |
forward channel | 1 |
back channel | 1 |
working temperature | '-40~+125℃ |
Package | SOIC 8 |