ADM8616: Low Voltage Supervisory Circuit with Watchdog in 4-Lead SC70

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.

产品应用领域 Applications

Microprocessor systems
Computers
Controllers
Intelligent instruments
Portable equipment

ADM8616 特点

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

ADM8616 功能框图

ADM8616 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
ADM8616LCYAKSZ-RL7	量产	4 ld SC70	4	工业
ADM8616MCYAKSZ-RL7	量产	4 ld SC70	4	工业
ADM8616RCYAKSZ-RL7	量产	4 ld SC70	4	工业
ADM8616SCYAKSZ-RL7	量产	4 ld SC70	4	工业
ADM8616TCYAKSZ-RL7	量产	4 ld SC70	4	工业
ADM8616VCYAKSZ-RL7	量产	4 ld SC70	4	工业
ADM8616WCYAKSZ-RL7	量产	4 ld SC70	4	工业
ADM8616YCYAKSZ-RL7	量产	4 ld SC70	4	工业
ADM8616ZCYAKSZ-RL7	量产	4 ld SC70	4	工业