The TPS382x family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage VDD becomes greater than 1.1V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active low as long as VDD remains less than the threshold voltage, VIT−. An internal timer delays the return of the output to the inactive state (high) to make sure proper system reset. The delay time, td, starts after VDD has risen above the threshold voltage (VIT− + VHYS). When the supply voltage drops below the threshold voltage VIT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, VIT–, set by an internal voltage divider. The TPS382x family also offers watchdog time out options of 200ms (TPS3820) and 1.6s (TPS3823, TPS3824, and TPS3828).
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TPS382x Voltage Monitor With Watchdog Timer datasheet (Rev. O) | PDF | HTML | Mar 20, 2025 |
| Application note | Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) | Mar 17, 2020 | ||
| Selection guide | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | Feb 28, 2020 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun 28, 2019 | ||
| Application brief | Latching a Voltage Supervisor (Reset IC) (Rev. A) | Apr 5, 2019 | ||
| Technical article | Improve circuit breaker leakage current response with a voltage supervisor | PDF | HTML | Jan 10, 2019 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | Jun 25, 2018 | ||
| Application note | Disabling the Watchdog Timer for TI's Family of Supervisors | Oct 30, 2003 | ||
| Application note | Power Supply Sequencing Solutions for Dual Supply Voltage DSPs (Rev. A) | Jul 5, 2000 |
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This reference design is a central controller for a high-voltage Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery rack. This design provides driving circuits for high-voltage relay, communication interfaces, (including RS-485, controller area network (CAN), daisy chain, and Ethernet), (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
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