The TPS3606-33 supervisory circuit monitors and controls the processor activity. In case of power-fail or brownout conditions, the backup-battery switchover function of the TPS3606-33 allows a low-power processor and its peripherals to run from the installed backup battery without asserting a reset beforehand.

During power on, RESET is asserted when the supply voltage (V_DD or V_BAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors V_OUT and keeps the RESET output active as long as V_OUT 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_OUT has risen above V_IT. When the supply voltage drops below V_IT, the output becomes active (low) again.

The TPS3606-33 is available in a 10-pin MSOP package and is characterized for operation over a temperature range of –40°C to 85°C.

• Supply Current of 40 μA (Max)
• Precision 3.3-V Supply Voltage Monitor Other Voltage Options on Request
• Watchdog Timer With 800-ms Time-Out
• Backup-Battery Voltage Can Exceed VDD
• Power-On Reset Generator With Fixed 100-ms Reset Delay Time
• Voltage Monitor for Power-Fail or Low-Battery Monitoring
• Manual Switchover to Battery-Backup Mode
• Manual Reset
• Battery Freshness Seal
• 10-Pin MSOP Package
• Temperature Range...–40°C to 85°C
• typical applications
  • Fax Machines
  • Set-Top Boxes
  • Advanced Voice Mail Systems
  • Portable Battery Powered Equipment
  • Computer Equipment
  • Advanced Modems
  • Automotive Systems
  • Portable Long-Time Monitoring Equipment
  • Point-of-Sale Equipment

All trademarks are the property of their respective owners.

• Number of supplies monitored
• 1
• Threshold voltage 1 (Typ) (V)
• 2.93
• Features
• Battery backup switchover, Manual reset capable, Watchdog timer, PFI/PFO
• Reset threshold accuracy (%)
• 2
• Output driver type/reset output
• Active-low, Push-pull
• Time delay (ms)
• 100
• Rating
• Catalog
• Watchdog timer WDI (sec)
• 0.8
• Operating temperature range (C)
• -40 to 85

TPS3606-33的完整型号有：TPS3606-33DGS、TPS3606-33DGSR，以下是这些产品的关键参数及官网采购报价：

TPS3606-33DGS，工作温度：-40 to 85，封装：VSSOP (DGS)-10，包装数量MPQ：80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TPS3606-33DGS的批量USD价格：2.837（1000+）

TPS3606-33DGSR，工作温度：-40 to 85，封装：VSSOP (DGS)-10，包装数量MPQ：2500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TPS3606-33DGSR的批量USD价格：2.364（1000+）

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