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| 型號： | L9824D |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 229K |
| 代理商： | L9824D |
The eight”DATA”terminals hasthesameESD pro-
tectionstructureas thecomparatorinputs.
SHORT CURRENT LIMITING.
The detailedfunction explanationis given in a for-
mer section where the output block is described.
Generallyitcanbesupplementarysaidthatthiskind
of protection determines the limits within the safe
operatingarea of the used DMOS structure.
The bigchipareaandtheheatcapacityof siliconal-
lowforshort durationspeakcurrentsuptofivetimes
the maximum DC current that occur under certain
conditionsas expoundedabove.
THERMAL SHUTDOWN.
Because of the symmetry and the big size of chip
twothermaloverloadprotectioncircuits wereplaced
oneachside ofthechipwhere theoutputstructures
are concentrated to ensure minimum thermal gra-
dientsto the thermal sensors.
Ata chiptemperatureof about 160
°
C the deviceis
switchedOFF. Thisstateissimilar totheSTANDBY
MODE.Afterthetemperatureremainsunderappro-
ximately 135
°
C the element is switched ON. Ther-
malshut-downdoesnotinfluenceanylogicbecause
it switches onlythe gatesof all outputDMOS-tran-
sistorsdirectly to ground.
APPLICATION HINTS
– Precausions by external components must be
provided to avoid damage of the device (it‘s in
any case not allowed to exceed the maximum
ratings given on page 2).
– For open load detection it is recommended to
use external components to fix the desired
status (depending on the temperature the in-
ternal open load status can vary from ”H” to
”L” caused by leakage currents)
Figure 5:
ApplicationDiagram
L9824
8/11
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