TPS3809J25 Datasheet | Texas Instruments

Features - 3-pin SOT-23 package - Supply current of 9 μA (typical) - Precision supply voltage monitor 2.5 V, 3 V, 3.3 V, 5 V - Pin-for-pin patible with MAX 809 - Temperature range:  - 40°C to +85°C 2 Applications - Factory automation - Wireless speakers - Motor drives - Servers - Appliances - Electricity meters - Building automation 3 Description The TPS3809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems. The newer TLV809E device is an alternative with the same pins, functions and electrical parameters. During power-on, RESET is asserted when the supply voltage VDD bees higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td(typ) = 200 ms, starts after VDD has risen above the threshold voltage VIT. When the supply voltage drops below the threshold voltage VIT, the output bees active (low) again. No external ponents are required. All the devices of this family have a fixed sense-threshold voltage VIT set by an internal voltage divider. The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 3-pin SOT-23. The TPS3809 devices are characterized for operation over a temperature range of - 40°C to 85°C. Device Information PART NUMBER PACKAGE (1) BODY SIZE (NOM) TPS3809 SOT-23 (3), DBV 2.90 mm × 1.60 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. TPS76333 3.3 V 5 V IN VDD TPS3809K33 RESET VDD TMS320LC54x RESET GND Typical Application Copyrigh Atn©I2M0P20OTRe Txa As NIn Ts Ntru Om Te In Cts EInactotrhpeoreatnedd of this data sheet addresses availability, warranty, changes, use i Snusbamfeitty D-corcituicmael anpt p Fleiceadtbioancsk, 1 intellectual...