Infinity PS212W Service Manual page 37

PS212W subwoofer
FEATURES SUMMARY
PRECISION MONITORING OF 3V, 3.3V, and
5V SUPPLY VOLTAGES
TWO OUTPUT CONFIGURATIONS
– Push-pull RST Output (STM809/811)
– Push-pull RST Output (STM810/812)
140ms RESET PULSE WIDTH (MIN)
LOW SUPPLY CURRENT - 6µA (TYP)
GUARANTEED RST/RST ASSERTION
DOWN TO V
OPERATING TEMPERATURE:
–40°C to 85°C (Industrial Grade)
LEAD-FREE, SMALL SOT23 and SOT143
PACKAGE
Table 1. Device Options
Active-
Low
RESET
STM809
STM810
STM811
STM812
November 2004
= 1.0V
CC
Active- Manual
High RESET Package
RESET Input
SOT23-3
SOT23-3
SOT143-4
SOT143-4
STM809, STM810
STM811, STM812
Figure 1. Packages
SOT23-3 (WX)
SOT143-4 (W1)
36
Reset Circuit
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