The TPS3808xxx family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5.0 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.

The TPS3808 uses a precision reference to achieve 0.5% threshold accuracy for V_IT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the C_T pin, 300 ms by connecting the C_T pin to V_DD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the C_T pin to an external capacitor. The TPS3808 has a very low typical quiescent current of 2.4 µA, so it is well-suited to battery-powered applications. It is available in a small SOT-23 package, and is fully specified over a temperature range of –55°C to +125°C (T_J).

• Controlled Baseline
  • One Assembly Site
  • One Test Site
  • One Fabrication Site
• Extended Temperature Performance of –55°Cto125°C
• Enhanced Diminishing Manufacturing Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree1
• Power-On Reset Generator With Adjustable Delay Time: 1.25 ms to 10 s
• Very Low Quiescent Current: 2.4μA Typical
• High Threshold Accuracy: 0.5% Typical
• Fixed Threshold Voltages for Standard Voltage Rails From 0.9V to 5V and Adjustable Voltage Down to 0.4V Are Available
• Manual Reset (MR) Input
• Open-Drain RESET Output
• Temperature Range: –55°C to 125°C
• Small SOT-23 Package

• Number of supplies monitored
• 1
• Threshold voltage 1 (Typ) (V)
• Adjustable
• Features
• Manual reset capable
• Reset threshold accuracy (%)
• 2
• Output driver type/reset output
• Active-low, Open-drain
• Time delay (ms)
• Programmable
• Rating
• HiRel Enhanced Product
• Watchdog timer WDI (sec)
• None
• Operating temperature range (C)
• -55 to 125

TPS3808-EP的完整型号有：TPS3808G01MDBVTEP、TPS3808G33MDBVREP、V62/08607-01XE、V62/08607-09XE，以下是这些产品的关键参数及官网采购报价：

TPS3808G01MDBVTEP，工作温度：-55 to 125，封装：SOT-23 (DBV)-6，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TPS3808G01MDBVTEP的批量USD价格：2.681（1000+）

TPS3808G33MDBVREP，工作温度：-55 to 125，封装：SOT-23 (DBV)-6，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TPS3808G33MDBVREP的批量USD价格：3.522（1000+）

V62/08607-01XE，工作温度：-55 to 125，封装：SOT-23 (DBV)-6，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V62/08607-01XE的批量USD价格：2.681（1000+）

V62/08607-09XE，工作温度：-55 to 125，封装：SOT-23 (DBV)-6，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V62/08607-09XE的批量USD价格：3.522（1000+）

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