TPS3838

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS3836, TPS3837, TPS3838 SLVS292F – JUNE 2000 – REVISED SEPTEMBER 2019 TPS383x Nano Power Voltage Supervisor With Selectable Reset Delay 1 Features 1 Supply current: 220 nA (typical) Precision supply voltage supervision range: 1.8 V, 2.5 V, 3.0 V, and 3.3 V Power-on reset generator with selectable delay time: 10 ms or 200 ms Push and pull RESET output (TPS3836), Push and pull RESET output (TPS3837), or opendrain RESET output (TPS3838) Manual reset 5-pin SOT23 and 2-mm × 2-mm, 6-pin SON packages Temperature range: –40°C to 85°C 2 Applications Applications using low-power DSPs, microcontrollers, or microprocessors Portable- and battery-powered equipment Intelligent instruments Wireless communication systems Notebook computers Applications using the MSP430™ For automotive systems, see TPS383x-Q1 3 Description The TPS3836, TPS3837, and TPS3838 device families of supervisory circuits provide circuit initialization and timing supervision, primarily for digital signal processors (DSP) and processor-based systems. During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps the RESET output active as long as VDD remains below the threshold voltage of VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time star...