S-5470A21I-M5T1U Datasheet, PDF (13/24 Pages) Seiko Instruments Inc – ULTRA-LOW CURRENT CONSUMPTION

ULTRA-LOW CURRENT CONSUMPTION NORMALLY-OFF FAINT SIGNAL DETECTION IC
Rev.1.3_01
S-5470 Series
 Application Circuits
1. Certain photocurrent level detector
If PD or LED exceeds a certain value, the output signal inverts.
VDD
INP
INM
S-5470
Series
OUT
VSS
0.1 μF
V_OUT
D1
Figure 20 Example Certain Photocurrent Level Detector (CMOS Output Product)
VDD
INP
INM
S-5470
Series
OUT
VSS
R
100 kΩ
V_OUT
0.1 μF
D1
Figure 21 Example Certain Photocurrent Level Detector (Nch Open-drain Output Product)
Caution The above connection diagram and constant will not guarantee successful operation. Perform
thorough evaluation using the actual application to set the constant.
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