TPS3620_TI 适用于 RAM 保持模式、具有电源故障输入指示和手动复位功能的电池备份监控器

TPS3620的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：监控器和复位 IC
功能描述：适用于 RAM 保持模式、具有电源故障输入指示和手动复位功能的电池备份监控器
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TPS3620的产品详情：

The TPS3619 and TPS3620 families of supervisory circuits monitor and control processor activity by providing backup-battery switchover for data retention of CMOS RAM.

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

The product spectrum is designed for supply voltages of 3.3 V and 5 V. The TPS3619 and TPS3620 are available in an 8-pin MSOP package and are characterized for operation over a temperature range of
–40°C to +85°C.

TPS3620的优势和特性：

Supply Current of 40 μA (Max)
Battery-Supply Current of 100 nA (Max)
Precision Supply Voltage Monitor 3.3 V, 5 V, Other Options on Request
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
Battery Freshness Seal (TPS3619)
Pin-For-Pin Compatible With MAX819, MAX703, and MAX704
8-Pin MSOP Package
Temperature Range –40°C to +85°C
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 other trademarks are the property of their respective owners

TPS3620的参数（英文）：

Number of supplies monitored
2
Threshold voltage 1 (Typ) (V)
2.93, 4.55
Features
Battery backup switchover, Manual reset capable, PFI/PFO
Reset threshold accuracy (%)
2.4
Output driver type/reset output
Active-low, Push-pull
Time delay (ms)
100
Rating
Catalog
Watchdog timer WDI (sec)
None
Operating temperature range (C)
-40 to 85

TPS3620具体的完整产品型号参数及价格（美元）：

TPS3620的完整型号有：TPS3620-33DGKR、TPS3620-33DGKT、TPS3620-50DGKR、TPS3620-50DGKT，以下是这些产品的关键参数及官网采购报价：

TPS3620-33DGKR，工作温度：-40 to 85，封装：VSSOP (DGK)-8，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TPS3620-33DGKR的批量USD价格：1.394（1000+）

TPS3620-33DGKT，工作温度：-40 to 85，封装：VSSOP (DGK)-8，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TPS3620-33DGKT的批量USD价格：1.673（1000+）

TPS3620-50DGKR，工作温度：-40 to 85，封装：VSSOP (DGK)-8，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TPS3620-50DGKR的批量USD价格：1.394（1000+）

TPS3620-50DGKT，工作温度：-40 to 85，封装：VSSOP (DGK)-8，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TPS3620-50DGKT的批量USD价格：1.673（1000+）

TPS3620的评估套件：

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TPS3620的电路图解：

TPS3620的评估套件：