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TPS389018DSER Datasheet(PDF) 1 Page - Texas Instruments |
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TPS389018DSER Datasheet(HTML) 1 Page - Texas Instruments |
1 / 6 page TPS389012 RESET VDD GND SENSE 1.8 V Microcontroller MR 1.2 V VCORE VI/O RESET CT GND Product Folder Sample & Buy Technical Documents Tools & Software Support & Community 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. PRODUCT PREVIEW Information. Product in design phase of development. Subject to change or discontinuance without notice. TPS3890 SLVSD65 – MARCH 2016 TPS3890 Low Quiescent Current, 1% Accurate Supervisor with Programmable Delay 1 1 Features 1 • Power-On Reset Generator with Adjustable Delay Time: 40 μs to 30 s • Very Low Quiescent Current: 2.1 μA (Typical) • High Threshold Accuracy: 0.5% (Typical) • Fixed Threshold Voltages: – Standard Voltage Rails From 1.2 V to 3.3 V – Adjustable Voltage Down to 1.15 V • Manual Reset (MR) Input • Open-Drain RESET Output • Temperature Range: –40°C to +125°C • Package: Very Small 1.5-mm × 1.5-mm WSON 2 Applications • DSP or Microcontroller Applications • Notebook, Desktop Computers • Smartphones, Hand-Held Products • FPGA, ASIC Applications • Portable, Battery-Powered Products 3 Description The TPS3890 is a low-quiescent voltage supervisor that monitors system voltages from 1.2 V to 3.3 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user- adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds. The TPS3890 device uses a precision reference to achieve 0.5% threshold accuracy. The reset delay time can be user-adjusted between 40 μs and 30 s by connecting the CT pin to an external capacitor. The TPS3890 has a very low typical quiescent current of 2.1 μA, making the device well- suited to battery-powered applications. The device is fully specified over a temperature range of –40°C to +125°C (TJ). Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS3890 WSON (6) 1.50 mm × 1.50 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Circuit |
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