■Overview
Duplicate battery protection is required for equipment using lithium-ion secondary batteries, which calls for higher precision for low consumption currents and voltage detection in the protection IC being used. <MM3563> is the 2nd protection IC for the 3-cell lithium-ion secondary battery, which provides high-precision overcharging detection for the CMOS process.
The consumption current has been limited to 1.5μA typ. under ordinary conditions, and now includes a standby function (consumption current of 0.15μA typ.) to further limit consumption current when the battery voltage is low.
The use of a compact package (SSON-6A) results in an even more space efficient mounting area.
§ Features
1. |
Ultra-low consumption current: Ordinary conditions: 1.5μA typ. During standby: 0.15μA typ. |
2. |
Overcharge detection voltage accurate to ±20 mV (Ta:25°C) |
3. |
Compact package (SSON-6A, 1.80×2.00×0.75 mm) |
§ Main specifications
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Consumption current (typ.) |
1.5μA (Vcell = 4.0 V) |
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Standby consumption current (typ.) |
0.15μA (Vcell = 2.3 V) |
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Overcharge detection voltage (typ.) |
±20 mV 4.0 to 4.5 V (in 5 mV increments) |
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Hysteresis voltage (typ.) |
±30% (detection voltage -50 to -500 mV) |
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Overcharge detection delay time (typ.) |
Select from ±30% (1 ms x 2n1) + (1 ms x 2n2) (*two arbitrary integers between 0 and 13 can be selected for n1 and n2.Note that n1≠n2) |
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Package |
SSON-6A (1.80 x 2.00 x0.75) SOT-26A (2.90 x 1.80 x1.10) unit:mm |
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