This reference design is a full cell temperature sensing and high cell-voltage accuracy Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery pack (52s and 104s). The design monitors each cell voltage, cell temperature, impedance, while supporting integrated electrochemical impedance spectroscopy (EIS) and robust daisy-chain communication. This design supports up to 1500V stackable energy storage systems. These features make this reference design applicable for high-capacity battery pack applications.
Merkmale
- Integrated EIS for real-time monitoring
- Impedance Accuracy: 1% (with 5A excitation and 100uΩ impedance, Measurement frequency: 0.04Hz to 2kHz)
- ±1.7mV cell voltage accuracy at -40°C to 85°C
- Robust daisy-chain communication with data reclocking and ring architecture for 1500V stackable systems
- Full cell-temperature sensing with multiplexer (MUX) for up to 52 or 104 cells per pack
- Programmable cell/pack protection (OVP, UVP, OTP) with low-power shutdown mode (<10µA)
- Scalable modular architecture supporting multipack expansion via daisy chain and CAN interfaces