Overview
The ADM8611N263ACBZ-R7 is a voltage supervisory circuit produced by Analog Devices Inc. This device is part of the ADM8611 family and is designed to monitor power supply voltage levels and ensure code execution integrity in microprocessor-based systems. It provides power-on reset signals and features an on-chip watchdog timer that can reset the microprocessor if it fails to strobe within a preset timeout period. Additionally, the device includes a manual reset input for external reset capabilities. Known for its ultralow power consumption, the ADM8611N263ACBZ-R7 is particularly suitable for power-efficient systems such as battery-powered portable devices and energy meters.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Operating Temperature Range | -40°C to +85°C | |
| Package Type | 6-Ball WLCSP (0.96mm x 1.46mm) | |
| Number of Pins | 6 | |
| Voltage Monitoring Threshold Range | 2 V to 4.63 V (10 options) | For ADM8611 |
| Watchdog Timer Period | Base period: tWD - 13% to tWD + 19% sec; Extended period: tWD - 13% to tWD + 19% sec | WD_SEL low/high |
| Reset Output Voltage Low | 0.4 V (VCC > 4.25 V, ISINK = 6.5 mA); 0.4 V (VCC > 2.5 V, ISINK = 6 mA); 0.4 V (VCC > 1.2 V, ISINK = 4.6 mA); 0.4 V (VCC > 0.9 V, ISINK = 0.9 mA) | |
| Leakage Current | 5 nA (VWDI = VCC = 5.5 V); 5 nA (VRESET = VCC = 5.5 V) | |
| WDI Pulse Width | tWPR: 85 ns (High pulse); tWPF: 300 ns (Low pulse) | |
| WDI Glitch Rejection | 60 ns |
Key Features
- Ultralow Power Consumption: Suitable for power-efficient systems such as battery-powered portable devices and energy meters.
- Voltage Monitoring: Monitors power supply voltage levels with multiple factory preset voltage monitoring threshold options.
- Watchdog Timer: On-chip watchdog timer to reset the microprocessor if it fails to strobe within a preset timeout period.
- Manual Reset Input: Allows for external reset capabilities through a manual reset input.
- Reset Output: Active low, open-drain reset output ensures quick system reset when the monitored voltage falls below its threshold.
- Glitch Rejection: Input glitch filter to filter out transient glitches on the VCC and VIN pins.
Applications
- Battery-Powered Portable Devices: Ideal for devices requiring low power consumption.
- Energy Meters: Suitable for energy measurement and monitoring systems.
- Microprocessor-Based Systems: Ensures code execution integrity and provides power-on reset signals.
- Embedded Systems: Useful in various embedded systems requiring reliable voltage monitoring and reset capabilities.
Q & A
- What is the operating temperature range of the ADM8611N263ACBZ-R7?
The operating temperature range is -40°C to +85°C.
- What type of package does the ADM8611N263ACBZ-R7 come in?
The device comes in a 6-Ball WLCSP (0.96mm x 1.46mm) package.
- How many voltage monitoring threshold options are available for the ADM8611?
There are 10 factory preset voltage monitoring threshold options available for the ADM8611, ranging from 2 V to 4.63 V.
- What is the function of the watchdog timer in the ADM8611N263ACBZ-R7?
The watchdog timer resets the microprocessor if it fails to strobe within a preset timeout period.
- How does the manual reset input work?
The manual reset input allows for an external reset through an active low input.
- What is the nature of the reset output in the ADM8611N263ACBZ-R7?
The reset output is active low and open-drain.
- What is the typical response time for asserting the reset signal when the monitored voltage falls below its threshold?
The reset signal is asserted within 23 μs to 26 μs (typical) when the monitored voltage falls below its threshold.
- How does the glitch rejection feature work in the ADM8611N263ACBZ-R7?
The device includes an input glitch filter to filter out transient glitches on the VCC and VIN pins.
- What are some typical applications of the ADM8611N263ACBZ-R7?
Typical applications include battery-powered portable devices, energy meters, and microprocessor-based systems.
- Why is the ADM8611N263ACBZ-R7 suitable for power-efficient systems?
The device is suitable due to its ultralow power consumption, making it ideal for systems that require low power usage.
