L4947 STMicroelectronics, L4947 Datasheet
L4947
Specifications of L4947
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L4947 Summary of contents
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... Thanks to its very low voltage drop, in automotive applications the L4947/L4947R can work correctly even during the cranking phase, when the battery voltage BLOCK DIAGRAM This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. ...
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... L4947 - L4947R ABSOLUTE MAXIMUM RATINGS Symbol V DC Input Voltage i DC Reverse Input Voltage Transient Input Overvoltages : Load Dump : 5ms t 10ms rise Fall Time Constant = 100ms f R 0.5 SOURCE Field Decay : 5ms t 10ms, R fall Rise Time Constant = 33ms r Low Energy Spike : 500 s, R ...
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... For a DC voltage 26 < V < 37V the device is not operating i FUNCTIONAL DESCRIPTION The L4947/L4947R is a very low drop 5V/0.5A voltage regulator provided with a reset function and therefore particularly suited to meet the re- quirements of supplying the microprocessor sys- tems used in automotive and industrial applica- tions ...
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... C power-off the output voltage decreases : at the V threshold value (V -0.15V typ. for L4947 RT(Off) O and V -0.3V typ. for L4947R value) the reset out- O Figure 1: Typical Dropout Voltage vs 500mA). o Figure 2: Reset Waveforms: (1) Without External Capacitor C (2) With External Capacitor C ...
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... RESIN BETWEEN LEADS L4947 - L4947R OUTLINE AND MECHANICAL DATA Pentawatt 5/6 ...
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... L4947 - L4947R Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences 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 ...