l4947r STMicroelectronics, l4947r Datasheet
l4947r
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l4947r Summary of contents
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... SHORT CIRCUIT PROTECTION AND THER- MAL SHUT-DOWN (with hysteresis) LOW START UP CURRENT DESCRIPTION The L4947/L4947R is a monolithic integrated cir- cuit in Pentawatt package specially designed to provide a stabilized supply voltage for automotive and industrial electronic systems. Thanks to its very low voltage drop, in automotive applications ...
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... L4947 - L4947R ABSOLUTE MAXIMUM RATINGS Symbol Parameter 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 SOURCE Rise Time Constant = 33ms r Low Energy Spike : ...
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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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... L7 L6 OUTLINE AND MAX. MECHANICAL DATA 0.189 0.054 0.110 0.053 0.022 0.047 0.041 0.055 0.142 0.409 0.409 0.628 0.051 0.118 0.622 0.260 Pentawatt RESIN BETWEEN LEADS L4947 - L4947R 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 ...