TPS3838E18

TPS3836E18 / J25 / H30 / L30 / K33 TPS3837E18 / J25 / L30 / K33, TPS3838E18 / J25 / L30 / K33 NANOPOWER SUPERVISORY CIRCUITS SLVS292A – JUNE 2000 – REVISED JANUARY 2002 D Supply Current of 220 nA (Typ) D Precision Supply Voltage Supervision Range: 1.8 V, 2.5 V, 3.0 V, 3.3 V D Power-On Reset Generator With Selectable Delay Time of 10 ms or 200 ms D Push/Pull RESET Output (TPS3836), RESET Output (TPS3837), or Open-Drain RESET Output (TPS3838) D Manual Reset D 5-Pin SOT-23 Package D Temperature Range –40°C to 85°C description The TPS3836, TPS3837, TPS3838 families of supervisory circuits provide circuit initialization and timing supervision, primarily for 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 RESET output 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 starts after VDD has risen above the threshold voltage VIT. D Applications Include – Applications Using Low-Power DSPs, Microcontrollers, or Microprocessors – Portable/Battery-Powered Equipment – Intelligent Instruments – Wireless Communication Systems – Notebook Computers – Automotive Systems TPS3836, TPS3838 DBV PACKAGE (TOP VIEW) CT 1 5 VDD GND 2 MR 3 4 RESET TPS3837 DBV PACKAGE (TOP VIEW) CT 1 5 VDD GND 2 MR 3 4 RESET When CT is connect...