Part Number: MAX16016
Function: Low-Power μP Supervisory Circuits with Battery-Backup Circuit and Chip-Enable Gating
Package: 10 TDFN-EP type
Manufacturer: Maxim Integrated
Image and Pinouts:
The MAX16016, MAX16020, MAX16021 supervisory circuits monitor power supplies, provide battery-backup control, and chip-enable (CE) gating to write protect memory in microprocessor (μP)-based systems. These low-power devices improve system reliability by providing several supervisory functions in a small, single integrated solution.
The MAX16016 / MAX16020 / MAX16021 perform four basic system functions: 1) Provide a µP reset output during VCC supply powerup, power-down, and brownout conditions. 2) Control VCC to battery-backup switching internally to maintain data or low-power operation for memories, real-time clocks (RTCs), and other digital logic when the main power is removed. 3) Provide memory write protection through internal chip-enable gating during brownout. 4) Provide a combination of additional supervisory functions listed in the Features section.
The devices operate from a 1.53V to 5.5V supply voltage and offer fixed reset thresholds for monitoring 5V, 3.3V, 3V, 2.5V, and 1.8V systems. Each device is available with either a pushpull or open-drain reset output. The ICs are available in small TDFN/TQFN packages and are fully specified for an operating temperature range of -40°C to +85°C. Features o System Monitoring for 5V, 3.3V, 3V, 2.5V, or 1.8V Power-Supply Voltages o 1.53V to 5.5V Operating Voltage Range o Low 1.2µA Supply Current (0.25µA in BatteryBackup Mode) o 145ms (min) Reset Timeout Period o Battery Freshness Seal o On-Board Gating of CE Signals, 1.5ns Propagation Delay (MAX16020/MAX16021) o Debounced Manual Reset Input o Watchdog Timer, 1.2s (typ) Timeout o Power-Fail Comparator and Low-Line Indicator for Monitoring Voltages Down to 0.6V o Battery-On, Battery-OK, and Battery Test Indicators o Small 10-Pin TDFN or 16-Pin TQFN Packages o UL®-Certified to Conf …
• GPS Systems
• Industrial Control
• Main/Backup Power for RTCs, CMOS Memories
• Point-of-Sale Equipment
• Portable/Battery Equipment
• Set-Top Boxes
MAX16016 Datasheet PDF Download
Other data sheets are available within the file: MAX16020, MAX16020_TE_+T, MAX16021, MAX16021_TE_+T