R3111H221C-T1-FE
SOT-89-3
33034316-R3111H221C-T1-FE
Supervisory Circuits Low Voltage Detector
the maximum body temperature at which the thermistor is designed to operate for extended periods of time with acceptable stability of its electrical characteristics.
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
a count of all of the component leads (or pins)
The rated output current is the maximum load current that a power supply can provide at a specified ambient temperature. A power supply can never provide more current that it's rated output current unless there is a fault, such as short circuit at the load.
During power up and power down, the UVLO function of the device has at least 0.1 V of hysteresis, but not more than 0.3 V. The UVLO function in power devices is a useful feature that enables robust system behavior across a wide range of operating conditions.
Overvoltages are all voltages that temporarily surpass the threshold value of the mains voltage. However, overvoltages can not only occur in the 230 V (normal household power supply voltage) mains, but can also reach the connected devices via telephone or aerial cables.
There are three major kinds of power supplies: unregulated (also called brute force), linear regulated, and switching. The fourth type of power supply circuit called the ripple-regulated, is a hybrid between the “brute force” and “switching” designs, and merits a subsection to itself.