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MIC2111B Datasheet(PDF) 21 Page - Micrel Semiconductor

Part # MIC2111B
Description  High-Performance, Multi-Mode, Step-Down Controller
PDF  35 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2111B Datasheet(HTML) 21 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2111B
October 13, 2015
21
Revision 2.1
Temperature Sense Input
The MIC2111B has a dedicated input for thermal sense
from intelligent power stages. The temperature sense pin
(TJ) senses the voltage divided from thermal sense
signal and sends it to the comparator. If this voltage is
higher than the reference voltage, the thermal shutdown
engages and FAULTb is pulled low. Thermal shutdown
threshold can be programmed through a resistive divider
from TJ.
−
×
=
V
6
.
0
V
6
.
0
V
R
R
TSENSE
4
1
Eq. 2
Figure 9. Thermal-Shutdown Programming
Output will be turned off by pulling FAULTb low after TJ
fault is triggered. The fault will be released after
hysteresis of 50mV is achieved.



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