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 V_DD becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors V_DD and keeps RESET output active as long as V_DD remains below the threshold voltage (V_IT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after V_DD has risen above V_IT.

When CT is connected to GND, a fixed delay time of typical 10 ms is asserted. When connected to V_DD, the delay time is typically 200 ms.

When the supply voltage drops below V_IT, the output becomes active (low) again.

All the devices of this family have a fixed-sense V_IT 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
• SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
  • 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
  • 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)
• 2.25, 2.64
• Features
• Manual reset capable
• Reset threshold accuracy (%)
• 2.6
• Output driver type/reset output
• Active-low, Push-pull
• Time delay (ms)
• 10, 200
• Rating
• HiRel Enhanced Product
• Watchdog timer WDI (sec)
• None
• Operating temperature range (C)
• -55 to 125

TPS3836-EP的完整型号有：TPS3836J25MDBVTEP、TPS3836L30MDBVREP、V62/06637-15XE、V62/06637-17XE，以下是这些产品的关键参数及官网采购报价：

TPS3836J25MDBVTEP，工作温度：-55 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：250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TPS3836J25MDBVTEP的批量USD价格：3.013（1000+）

TPS3836L30MDBVREP，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TPS3836L30MDBVREP的批量USD价格：3.013（1000+）

V62/06637-15XE，工作温度：-55 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：250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V62/06637-15XE的批量USD价格：3.013（1000+）

V62/06637-17XE，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V62/06637-17XE的批量USD价格：3.013（1000+）

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