TPS3619-33是TI公司的一款无产品,TPS3619-33是用于 RAM 保持的电池备份监控器,本页介绍了TPS3619-33的产品说明、应用、特性等,并给出了与TPS3619-33相关的TI元器件型号供参考。
TPS3619-33 - 用于 RAM 保持的电池备份监控器 - 无 - 监控器和复位IC - TI公司(Texas Instruments,德州仪器)
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 (VDD or VBAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET output active as long as VDD remains below the threshold voltage (VIT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after VDD has risen above VIT. When the supply voltage drops below VIT, 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.
- 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
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