S-8229AAA-M6T1U Datasheet, PDF (9/26 Pages) Seiko Instruments Inc – BATTERY MONITORING IC

Rev.1.0_02
BATTERY MONITORING IC
S-8229 Series
 Operation
1. Basic operation
The basic operation when VON / OFF ≥ VSH is shown as follows.
1. 1 When the power supply voltage (VDD) increases
The OUTn pin becomes release status if VDD is equal to or higher than the release voltage (+VDETn).
Table 9 Set Conditions at Releasing
Output Logic
Full charge all on
Full charge all off
VOUTn
VSS
High-Z
Nch n
On
Off
1. 2 When VDD decreases
The OUTn pin becomes detection status if VDD is equal to or lower than the detection voltage (−VDETn).
Table 10 Set Conditions at Detecting
Output Logic
Full charge all on
Full charge all off
VOUTn
High-Z
VSS
Nch n
Off
On
1. 3 When VDD ≤ minimum operation voltage
The OUTn pin voltage is indefinite.
Remark n = 1 to 3
2. ON / OFF pin
This pin starts and stops the S-8229 Series.
When VON / OFF is set to VSL or lower, the entire internal circuit stops operating, and Nch n (refer to Figure 1 in
" Block Diagram") is turned off, reducing current consumption significantly.
The ON / OFF pin is configured as shown in Figure 9. The ON / OFF pin is not internally pulled up or pulled down,
so do not use the ON / OFF pin in the floating status. When not using the ON / OFF pin, connect the pin to the VDD
pin.
VDD
Remark n = 1 to 3
ON / OFF
Figure 9
VSS
9