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The TPS3836, TPS3837, TPS3838 families of supervisory circuits provide circuit initialization and timing supervision, primarily for digital signal processing (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 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 VIT, the output becomes active (low) again.

All the devices of this family have a fixed-sense VIT set by an internal voltage divider.

The TPS3836 has an active-low push-pull RESET output. The TPS3837 has active-high push-pull RESET, and the TPS3838 integrates an active-low open-drain RESET output.

The product spectrum is designed for supply voltages of 1.8 V, 2.5 V, 3 V, and 3.3 V. The circuits are available in a 5-pin SOT-23 package. The TPS3836, TPS3837, and TPS3838 families are characterized for operation over a temperature range of –55°C to 125°C.

  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • Supply Current of 220 nA (Typ)
  • Precision Supply Voltage Supervision Range: 1.8 V, 2.5 V, 3 V, 3.3 V
  • Power-On Reset Generator With Selectable Delay Time of 10 ms or 200 ms
  • Push/Pull RESET Output (TPS3836), RESET Output (TPS3837), or Open-Drain RESET Output (TPS3838)
  • Manual Reset
  • 5-Pin SOT-23 Package
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (–55°C/125°C) Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Applications Using Automotive Low-Power DSPs, Microcontrollers, or Microprocessors
    • Battery-Powered Equipment
    • Intelligent Instruments
    • Wireless Communication Systems
    • Automotive Systems

(1) Custom temperature ranges available

  • Number of supplies monitored
  • 1
  • Threshold voltage 1 (Typ) (V)
  • 2.93
  • Features
  • Manual reset capable
  • Reset threshold accuracy (%)
  • 9.2
  • Output driver type/reset output
  • Active-high, Push-pull
  • Time delay (ms)
  • 10, 200
  • Rating
  • HiRel Enhanced Product
  • Watchdog timer WDI (sec)
  • None
  • Operating temperature range (C)
  • -40 to 125, -55 to 125


TPS3837K33MDBVREP,工作温度:-55 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TPS3837K33MDBVREP的批量USD价格:2.869(1000+)

TPS3837K33QDBVREP,工作温度:-40 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TPS3837K33QDBVREP的批量USD价格:2.869(1000+)

V62/06637-09XE,工作温度:-40 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网V62/06637-09XE的批量USD价格:2.869(1000+)

V62/06637-22XE,工作温度:-55 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网V62/06637-22XE的批量USD价格:2.869(1000+)


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