l4923 STMicroelectronics, l4923 Datasheet
l4923
Available stocks
Related parts for l4923
l4923 Summary of contents
Page 1
... The device is internally protected against load dumps transient input overvoltage, re- verse polarity, overheating and output short circuit : thanks to these featuresthe L4923is very suited for the automotive and industrial applications. The reset function is very useful for power off and power on information when supplying a microproc- essor ...
Page 2
... L4923 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V DC Input Voltage Reverse Voltage r V Positive Load Dump Protection (t = 300ms Junction Temperature range J T Operating Temperature Range op T Storage Temperature Range stg Note: The circuit is ESD protected according to MIL-STD-883C THERMAL DATA Symbol ...
Page 3
... The parassiticequivalentseries resistance of theca- pacitorused adds a zero to the regulationloop. This zero may compromise the stability of the system since its effect tends to cancel the effect of the pole added. In regulators this ESR must be less than 3 and the minimum capacitor value L4923 Typ. Max. Unit ...
Page 4
... L4923 FUNCTIONAL DESCRIPTION The operating principle of the voltage regulator is basedon thereference,the error amplifier,the driver and the power PNP. This stage uses an Isolated CollectorVertical PNP transistor which allowsto ob- tain very low dropout voltage (typ. 450 mV) and low quiescent current ( typically ...
Page 5
... L7 L6 OUTLINE AND MAX. 0.189 MECHANICAL DATA 0.054 0.110 0.053 0.022 0.038 0.031 0.035 0.105 0.205 0.307 0.409 0.409 0.673 0.860 0.896 0.051 0.118 0.622 0.260 0.120 Heptawatt V 0.210 0.152 HEPTAMEC L4923 5/6 ...
Page 6
... L4923 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the conse- quences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice ...