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Under-voltage, Current Sense Comparator IC
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General Description:
CN200 is an integrated circuit with the functions of under voltage protection and overcurrent protection or current sense, it is formed by reference voltage, an under voltage comparator, a current sense comparator and a timer. CN200 consumes little current and is easy to use, it is ideally suitable for the applications of overcurrent protection, current sense or battery discharge management.
CN200 enters under-voltage state if the VCC voltage is below under-voltage threshold for 100ms or above, in which OD pin becomes high, and OD- pin becomes low. CN200 will not recover from under-voltage state until VCC becomes higher than under voltage threshold by 0.21V for 100ms or above. Once CN200 recovers from under voltage state, OD pin outputs low and OD- pin outputs high.
If the voltage drop between current sense positive terminal CSP and negative terminal CSN is larger than overcurrent threshold (38mV Typ.) for 9ms or above, CN200 enters overcurrent state, in which OD pin outputs high, and OD- pin outputs low.
Both under voltage state and overcurrent state are referred to as over discharge state.
CN200 is available in 6 pin SOT-23 package.
Over-current Protection Current Sense Comparator
Battery Discharge Management for 2-cell NIMH batteries Battery Discharge Management For single-cell Lithium Titanate Battery
Low Current Consumption: 4uA
Internally Fixed Under-voltage Threshold
Valid Output with VCC down to 1.1V
Under-voltage Threshold: 1.808V (VCC falls)
Under-voltage Threshold Accuracy:±1%
Deglitch Time of Under Voltage Detection: 100ms
Overcurrent Threshold: 38mV
Input Common Mode Voltage of overcurrent detection: 0V to VCC
Deglitch Time of Overcurrent Detection: 9ms
Operating Temperature :-40℃ to 85℃
Available in 6-Pin SOT-23 Package
Lead-free, rohs-Compliant and Halogen Free
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