S1011 Datasheet, PDF (24/43 Pages) Seiko Instruments Inc – BUILT-IN DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING) VOLTAGE DETECTOR

HIGH-WITHSTAND VOLTAGE BUILT-IN DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING) VOLTAGE DETECTOR
S-1011 Series
Rev.1.2_00
 Usage Precautions
1. Feed-through current during detection and release
In the S-1011 Series, the feed-through current flows at the time of detection and release. For this reason, if the
input impedance is high, oscillation may occur due to voltage drop caused by the feed-through current.
When using the S-1011 Series in configurations like those shown in Figure 32 and Figure 33, it is recommended
that input impedance be set to 1 kΩ or less.
Determine the impedance through thorough evaluation including temperature characteristics.
R_A
V_BAT
V_DD
VDD
OUT
VSS CP CN
V_BAT
R_A V_DD
VDD
SENSE
OUT
VSS CP CN
Figure 32 VDD Detection Product
Figure 33 SENSE Detection Product
24
Seiko Instruments Inc.