TPS3619-33-EP中文资料适用于 RAM 保持模式的增强型产品电池备份监控器数据手册TI规格书

描述 Description

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 –55°C to 125°C.

特性 Features

• Supply Current of 40 µA (Max)
• Precision Supply-Voltage Monitor 3.3 V, 5 V, and Other Options on Request
• Power-On Reset Generator with Fixed 100-ms Reset Delay Time
• Battery Freshness Seal (TPS3619)
• 8-Pin Mini Small-Outline Package (MSOP) Package
• Controlled Baseline
• One Fabrication Site
• Extended Product Life Cycle
• Product Traceability
• APPLICATIONS
• Set-Top Boxes
• Portable Battery-Powered Equipment
• Advanced Modems
• Portable Long-Time Monitoring Equipment
• Point-of-Sale Equipment


Additional temperature ranges available - contact factory