AS1922 View Datasheet(PDF) - austriamicrosystems AG
Part Name
Description
MFG CO.
AS1922 Datasheet PDF : 14 Pages
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AS1920/AS1922
Datasheet - Application Information
Figure 16. VCCA Tied to DC/DC Feedback Divider
2.5V
Adjustable Reset
Trip Threshold
2.31V
27.4kΩ
1%
2.26kΩ
1%
22.6kΩ
1%
3V
1.8V
5
VCC3
1
RESETN
4 AS1920-18
VCC18
3
VCCA
2
GND
System
Reset
Figure 17. Triple-Supply Monitor w/Manual Reset Switch
VTRIP = VCCA/R2 (R1 + R2)
2.5V
VTRIP = 2.3V
R1 = R2 ((VTRIP/VCCA) - 1)
1.8V
3V
100nF
5
VCC3
1
RESETN
Normally Open
Manual Reset
Switch
R3 †
10kΩ
5%
R1
130kΩ
0.1%
R2
100kΩ
0.1%
100nF
4
AS1920-18
VCC18
3
VCCA
2
GND
System
Reset
† Optional Resistor Recommended
to Extend ESD Tolerance
www.austriamicrosystems.com
Revision 1.00
10 - 14
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