ADM8617 Low Voltage Supervisory Circuit with Watchdog in 4-Lead SC70 (Active-low with an Open-Drain Output)

The ADM8616/ADM8617 are supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor-based systems. A power-on reset signal is generated when the supply voltage rises to a preset threshold level. The ADM8616/ADM8617 have an on-chip watchdog timer that can reset the microprocessor if it fails to strobe within a preset timeout period.

Each part is available in the following nine reset threshold options: 1.58 V, 1.67 V, 2.19 V, 2.32 V, 2.63 V, 2.93 V, 3.08 V, 4.38 V, and 4.63 V. There are four reset timeout options: 1 ms, 20 ms, 140 ms, and 1120 ms. There are also three possible watchdog timeouts available: 6.3 ms, 102 ms, and 1.6 sec.

The parts differ in terms of reset output configuration. The ADM8616 is active-low with a push-pull output, while the ADM8617 is active-low with an open-drain output.

The ADM8616/ADM8617 are available in 4-lead SC70 packages and typically consume only 5 μA, making them suitable for use in low power, portable applications.

Applications
  • Microprocessor systems
  • Computers
  • Controllers
  • Intelligent instruments
  • Portable equipment
Features and Benefits
  • 9 RESET threshold options 1.58 V to 4.63 V
  • 4 RESET timeout options 1 ms, 20 ms, 140 ms, 1120 ms
  • 3 watchdog timeout options 6.3 ms, 102 ms, 1.6 sec
  • RESET output stages
    Push-pull active-low (ADM8616)
    Open-drain active-low (ADM8617)
  • Precision 1.8 V to 5 V power supply monitoring
  • Low power consumption (5 μA)
  • Guaranteed reset output valid to VCC = 1 V
  • Power supply glitch immunity
  • Specified over −40°C to +85°C temperature range
  • 4-lead SC70 package
Power Management
Data Sheets
Documentnote
ADM8616/ADM8617: Low Voltage Supervisory Circuits with Watchdog in 4-Lead SC70 Data Sheet (Rev. B)PDF 271 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADM8617RCYAKSZ-RL7 Production4 ld SC70REEL 3000-40 to 85C01.05Y
ADM8617SAYAKSZ-RL7 Production4 ld SC70REEL 3000-40 to 85C01.05Y
ADM8617YAYAKSZ-RL7 Last Time Buy4 ld SC70REEL 3000-40 to 85C00.86Y
Reference Materials
ADM8616/ADM8617: Low Voltage Supervisory Circuits with Watchdog in 4-Lead SC70 Data Sheet (Rev. B) adm8616
ADI Complementary Parts Guide - Supervisory Devices and DSP Processors adsp-ts101s
Supervisory Devices Complementary Parts Guide for Altera FPGAs adm690
Supervisory Devices Complementary Parts Guide for Xilinx FPGAs adm690
Voltage Monitoring Products Applications Guide adm6317