The TPS3600 family of supervisory circuits monitor and control processor activity. In case of power-fail or brownout conditions, the backup-battery switchover function of TPS3600 allows to run a low-power processor and its peripherals 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 V_res. Thereafter, the supply voltage supervisor monitors V_OUT and keeps 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. This delay timer starts its time-out, after V_OUT has risen above the threshold voltage (V_IT). In case of a brownout or power failure of both supply sources, a voltage drop below the threshold voltage (V_IT) get detected and the output becomes active (low) again.

The product spectrum is designed for supply voltages of 2 V, 2.5 V, 3.3 V, and 5 V. The circuits are available in a 14-pin TSSOP package. They are characterized for operation over a temperature range of -40°C to 85°C.

• Supply Current of 40 μA (Max)
• Precision Supply Voltage Monitor
  • 2.0 V, 2.5 V, 3.3 V, 5.0 V
  • Other Versions 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
• Battery OK Output
• Voltage Monitor for Power-Fail or Low-Battery Monitoring
• Manual Switchover to Battery-Backup Mode
• Chip-Enable Gating -3 ns (at VDD = 5 V) Max. Propagation Delay
• Manual Reset
• Battery Freshness Seal
• 14-Pin TSSOP 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)
• 1.78, 2.22, 2.93, 4.4
• Features
• Battery backup switchover, Chip enable gating, Manual reset capable, Watchdog timer, PFI/PFO
• Reset threshold accuracy (%)
• 2.2
• 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

TPS3600的完整型号有：TPS3600D20PW、TPS3600D20PWR、TPS3600D25PW、TPS3600D33PW、TPS3600D33PWR、TPS3600D50PW，以下是这些产品的关键参数及官网采购报价：

TPS3600D20PW，工作温度：-40 to 85，封装：TSSOP (PW)-14，包装数量MPQ：90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TPS3600D20PW的批量USD价格：3.833（1000+）

TPS3600D20PWR，工作温度：-40 to 85，封装：TSSOP (PW)-14，包装数量MPQ：2000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TPS3600D20PWR的批量USD价格：3.194（1000+）

TPS3600D25PW，工作温度：-40 to 85，封装：TSSOP (PW)-14，包装数量MPQ：90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TPS3600D25PW的批量USD价格：3.194（1000+）

TPS3600D33PW，工作温度：-40 to 85，封装：TSSOP (PW)-14，包装数量MPQ：90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TPS3600D33PW的批量USD价格：3.833（1000+）

TPS3600D33PWR，工作温度：-40 to 85，封装：TSSOP (PW)-14，包装数量MPQ：2000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TPS3600D33PWR的批量USD价格：3.194（1000+）

TPS3600D50PW，工作温度：-40 to 85，封装：TSSOP (PW)-14，包装数量MPQ：90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TPS3600D50PW的批量USD价格：3.194（1000+）

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