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JW3370
JW3370 is a multi-cell battery stack monitoring and protection IC that includes a 14-bit ADC for battery voltage and temperature sense, a 16-bit ADC for charge/discharge current sense.
JW3370 provides passive balance function for each cell and allows at most 3 consecutive cells being discharged simultaneously.
JW3370 has two ADC operation modes: fast mode and filtering mode. The fast mode enables conversion time as fast as 640μs, while the filtering mode provides better than 80dB rejection at frequencies above 50Hz.
JW3370 communicates with external control unit via SPI interface. More JW3370 can operate in series to monitor long string battery.
JW3370 integrates complete protection function including over/under voltage, over/under temperature, over charge/discharge current, short and open wire.
JW3370 supports both Sleep mode and Ship mode to achieve high efficiency with low power when charge/discharge current is minor
FEATURES
Monitor 10 series cell battery and support series operation
14-bit ΔΣ ADC samples battery voltage and accuracy is ±5mV@2.3~4.3V
Provide filtering mode
3 channels thermal sense and accuracy is ±1℃(no considering NTC resistor offset)
Battery over/under voltage protection
Battery over/under temperature protection
Open wire connection detection
10 cells passive balance On-chip passive cell balancing switches Provide off-chip passive balancing
16-bit ΔΣ ADC senses charge/discharge current and accuracy is ±150µV@(-100 mV ~100mV), ±300µV@(-200 mV ~200mV),
Over Charge/Discharge current protection
Discharge Short protection
Reliable SPI communication (mode3)
3.3V LDO output for external application
External protection N-MOSFETs
Low power consumption During operation 1mA typ. 1.5mA max (Power consumption of communication and temperature detection is not included)
During Sleep 15µA typ. 20µA max
During Ship 3µA typ. 4µA max
Package: TSSOP38
APPLICATIONS
Electric Bicycles, Motorcycles.
Backup Battery Systems
Hybrid Electric Vehicle
需要样品测试或详细资料请联系：18126521362（点击复制微信号）
