Gnéithe
●Manual reset input (TPS3820/3/5/8)
●Reset output available in active-low (TPS3820/3/4/5), active-high (TPS3824/5), and open drain (TPS3828)
●Supply voltage supervision range: 2.5 V, 3 V, 3.3 V, 5 V
●Watchdog timer (TPS3820/3/4/8)
●Temperature range: −40 degree to 85 degree (−40 degree to 125 degree for TPS3823A-33)
Feidhmchláir
●DSPs, microcontrollers, or microprocessors
●Programmable controls
●Portable and battery-powered equipment
●Notebook and desktop computers
Cur síos
The TPS382x serise 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 1.1 V. 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 ensure proper system reset. The delay time, td , starts after VDD has risen above the threshold voltage (VIT− plus VHYS). When the supply voltage drops below the threshold voltage VIT−, the output becomes active (low) again. 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 200 ms (TPS3820) and 1.6 s (TPS3823/4/8).
Clibeanna Te: tps3823-33dbvr, an tSín, soláthróirí, monaróirí, mórdhíola, i stoc
