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TPS3803G15QDCKRQ1 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS3803G15QDCKRQ1 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 13 page TPS380301Q1, TPS3803G15Q1, TPS3805H33Q1 VOLTAGE DETECTOR SGLS228 − DECEMBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 features D Qualification in Accordance With AEC-Q100† D Qualified for Automotive Applications D Customer-Specific Configuration Control Can Be Supported Along With Major-Change Approval D Single Voltage Detector (TPS3803): Adjustable/1.5 V D Dual Voltage Detector (TPS3805): Adjustable/3.3 V D High ±1.5% Threshold Voltage Accuracy D Supply Current: 3 µA Typical at VDD = 3.3 V † Contact factory for details. Q100 qualification data available on request. D Push/Pull Reset Output (TPS3805) Open-Drain Reset Output (TPS3803) D Temperature Range ...−40°C to 125°C D Five-Pin SC−70 Package typical applications D Applications Using DSPs, Microcontrollers, or Microprocessors D Wireless Communication Systems D Portable/Battery-Powered Equipment D Programmable Controls D Intelligent Instruments D Industrial Equipment D Notebook/Desktop Computers D Automotive Systems description The TPS3803 and TPS3805 families of supervi- sory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor- based systems. The TPS3803G15 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803−01 has an adjustable SENSE input that can be configured by two external resistors. In addition to the fixed sense threshold monitored at VDD, the TPS3805 devices provide a second adjustable SENSE input. RESET is asserted in case any of the two voltages drops below VIT. During power on, RESET is asserted when supply voltage VDD becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD (and/or SENSE) and keeps RESET active as long as VDD or SENSE remains below the threshold voltage VIT. As soon as VDD (SENSE) rises above the threshold voltage VIT, RESET is deasserted again. The product spectrum is designed for 1.5 V, 3.3 V, and adjustable supply voltages. The devices are available in a five-pin SC-70 package. The TPS3803 and TPS3805 devices are characterized for operation over a temperature range of −40 °C to 125°C. Copyright 2003 Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 3 2 4 5 DCK PACKAGE (TOP VIEW) 1 NC GND RESET VDD SENSE NC { TPS3803-01, TPS3803G15, TPS3805 typical operating circuit TPS3805H33 TMS320VC5416 RESET VDD SENSE GND DVDD CVDD RESET GND 3.3 V 1.6 V R1 R2 {TPS3803G15 |
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