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TPS3620-50 Datasheet BACKUP-BATTERY SUPERVISORS

Manufacturer: Texas Instruments

Download the TPS3620-50 datasheet PDF. This datasheet also includes the TPS3619-33 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (TPS3619-33-etcTI.pdf) that lists specifications for multiple related part numbers.

General 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).

Overview

TPS3619-33, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 BACKUP-BATTERY SUPERVISORS FOR RAM.

Key Features

  • 1.
  • 2 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.

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