MM1309 - Protection of Lithium Ion Batteries (three cells in series)
No.
1 2 3 4 Pin DCHG N.
C OV GND BATL BATM BATM VCC Input Input Input Output FET drive pin for overcharge control Negative connection pin for the low side battery.
Also, IC GND pin.
(IC reference power supply pin) Positive connection pin for the low side battery, and negative connection pin for the
MITSUMI Protection of Lithium Ion Battery (three cells in series) MM1309 Protection of Lithium Ion Batteries (three cells in series) Monolithic IC MM1309 Outline This is a 3-cell series protection IC is for protecting a lithium ion battery from overcharging and excess discharging.
If abnormalities occur during charging and excess voltage is applied, it has a function that turns off the external FET switch (overcharging detection).
It also has a function that turns off the external FET switch
MM1309 Features
* 1. 2. 3. 4. 5. 6. 7. 8. Current consumption (for VCC pin) Current consumption (for VCC pin) Current consumption (for VCC pin) Current consumption (for VCC pin) Current consumption (for BATH pin) Current consumption (for BATH pin) Current consumption (for BATH pin) Charge prohibit voltage (Ta=-20°C~+
