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TPS3838K33-Q1

Texas Instruments
Part Number TPS3838K33-Q1
Manufacturer Texas Instruments
Description NANOPOWER SUPERVISORY CIRCUITS
Published Sep 26, 2019
Detailed Description TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1 TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30...
Datasheet PDF File TPS3838K33-Q1 PDF File

TPS3838K33-Q1
TPS3838K33-Q1


Overview
TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1 TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1 NANOPOWER SUPERVISORY CIRCUITS SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007 D Qualified for Automotive Applications D Customer-Specific Configuration Control Can Be Supported Along With Major-Change Approval D ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) 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 125°C description The TPS3836, TPS3837, TPS3838 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.
D Applications Include − Applications Using Automotive Low-Power DSPs, Microcontrollers, or Microprocessors − Battery-Powered Equipment − Intelligent Instruments − Wireless Communication Systems − 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 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.
When CT is connected to GND a fixed delay time of typical 10 ms is asserted.
When connected to VDD the delay time is typically 200 ms.
When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again.
All the ...


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