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TPS3808 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS3808 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 31 page 1.5 2.5 3.5 4.5 5.5 6.5 4.0 3.5 3.0 2.5 2.0 1.5 V (V) DD -40 C ° 25 C 85 C 125 C ° ° ° 1.2 V 3.3 V TPS3808G12 TPS3808G33 DSP SENSE V DD V DD SENSE V I/O V CORE GPIO GND GND GND RESET MR C T C T RESET Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS3808 SBVS050K – MAY 2004 – REVISED OCTOBER 2015 TPS3808 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit 1 Features 3 Description The TPS3808 family of microprocessor supervisory 1 • Power-On Reset Generator with Adjustable Delay circuits monitors system voltages from 0.4 V to 5 V, Time: 1.25 ms to 10 s asserting an open-drain RESET signal when the • Very Low Quiescent Current: 2.4 μA Typical SENSE voltage drops below a preset threshold or • High Threshold Accuracy: 0.5% Typ when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user- • Fixed Threshold Voltages for Standard Voltage adjustable delay time after the SENSE voltage and Rails from 0.9 V to 5 V and Adjustable Voltage manual reset (MR) return above the respective Down to 0.4 V Are Available thresholds. • Manual Reset (MR) Input The TPS3808 device uses a precision reference to • Open-Drain RESET Output achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The • Temperature Range: –40°C to 125°C reset delay time can be set to 20 ms by disconnecting the CT pin, 300 ms by connecting the • Small SOT-23 and 2-mm × 2-mm WSON CT pin to VDD using a resistor, or can be user- Packages adjusted between 1.25 ms and 10 s by connecting the CT pin to an external capacitor. The TPS3808 2 Applications device has a very low typical quiescent current of • DSP or Microcontroller Applications 2.4 μA, so it is well-suited to battery-powered applications. It is available in the SOT-23 and 2-mm × • Notebook and Desktop Computers 2-mm WSON packages, and is fully specified over a • PDAs and Hand-Held Products temperature range of –40°C to 125°C (TJ). • Portable and Battery-Powered Products • FPGA and ASIC Applications Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SOT-23 (6) 2.90 mm x 1.60 mm TPS3808 WSON (6) 2.00 mm x 2.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Supply Current vs Supply Voltage 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Numéro de pièce similaire - TPS3808_15 |
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Description similaire - TPS3808_15 |
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