■Overview
There is a need for products that prevent early reduction in capacity due to self-discharge for the multicell DC packs used in power tools and electric motorbikes. Since it is not possible to eliminate the self-discharge that occurs in each cell, a circuit is necessary to correct any differences in the cell voltages within the battery pack.
Mitsumi has developed the <MM3513 series>, which are a voltage monitoring ICs of the CMOS process low-current consumption type and which provide a bypass for the charge currents directed to cells where the voltage is high.
§ Features
1. |
High-accuracy voltage detection ±20mV typ. (25ºC) |
2. |
In normal operating mode, the current consumption is 1.5μA typ.
In standby mode, the current consumption is 0.2μA typ. |
§ Main specifications
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Operating input voltage |
1.5 to 5.5V |
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Current consumption |
1.5 μA typ. (VDD = 3.4V) |
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Standby current |
0.2 μA typ. (VDD = 2.0V) |
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Detection voltage |
3.5 to 4.5V (selection in 5mV steps) |
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Detection voltage accuracy |
±20mV typ. (25ºC) |
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Standby mode switching voltage |
3.0V typ. |
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Operating temperature range |
-40 to +85ºC |
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Package |
SOT-25A |
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External dimensions |
2.90×2.80×1.15 (unit:mm) |
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