CN-0235 is a Circuit Board from Analog Devices. It contains AD7280A, AD8280, ADuM5404 and ADuM1400 chips. It is mainly used for lithium ion battery monitoring system.
The CN-0235 is a reference circuit designed for monitoring and protecting lithium ion battery stacks. It utilizes the AD7280A as a primary monitor for accurate voltage measurement and the AD8280 as a secondary safety monitor. The design incorporates ADuM1400 and ADuM5404 isolators to provide galvanic isolation between the high-voltage battery side and the low-voltage evaluation platform.
| Supply Voltage Range | 8 V to 30 V |
|---|---|
| Operating Temperature | -40°C to +105°C |
| ADC Resolution | 12 bits |
| Conversion Time | 7 μs |
| Voltage Measurement Accuracy | ±1.6 mV |
| Maximum Cells Monitored | 48 cells |
It is a fully isolated lithium ion battery monitoring and protection system designed to help solve analog, mixed-signal, and RF design challenges.
The AD7280A allows for the monitoring of up to 48 Li-Ion cell voltages when stacked.
The design uses the ADuM1400, ADuM1401 digital isolator, and the ADuM5404 isolator with integrated dc-to-dc converter.