DS1260 Datasheet, PDF (8/8 Pages) Dallas Semiconductor – Smart Battery

POWER-DOWN/POWER-UP CONDITION
DS1260
WARNING:
Under no circumstances are negative undershoots, of any amplitude, allowed when device is in battery
backup mode.
Water washing for flux removal may discharge internal lithium source as exposed voltage pins are
present.
NOTES:
1. Voltages are referenced to ground.
2. Load capacity is 50 pF.
3. Measured with Pins 11, 12, 13, and 3 open.
4. V_TP is the point that PF is driven low.
5. Sustained I_CCO2 currents above 1 mA cause a significant drop in battery voltage.
6. V_BAT is the internal lithium energy source voltage.
7. V_BATF is the point that BF is driven low.
8. Battery leakage is the internal energy consumed by the DS1260.
9. Storage loss is less than 1% per year at 25°C.
10. V_CCI = +5 volts; t_A = 25°C.
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