Overview
The ADM8615Y100ACBZ-R7 is a voltage supervisory circuit produced by Analog Devices Inc. This device is part of the ADM8611/ADM8612/ADM8613/ADM8614/ADM8615 family, 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 that allows for external reset via a push-button. The ADM8615Y100ACBZ-R7 is particularly suited for low-power, portable equipment due to its ultralow power consumption.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Operating Temperature Range | -40°C to +85°C | |
| Voltage Monitoring Range | 0.5 V to 1.9 V | |
| Input Threshold High | 0.9 V | |
| Input Threshold Low | 0.4 V | |
| WDI Pulse Width High | 85 ns | |
| WDI Pulse Width Low | 300 ns | |
| WDI Glitch Rejection | 60 ns | |
| RESET Output Voltage Low | 0.4 V (VCC > 4.25 V, ISINK = 6.5 mA) | VCC > 4.25 V, ISINK = 6.5 mA |
| Leakage Current | 5 nA (VWDI = VCC = 5.5 V) | VWDI = VCC = 5.5 V |
| Package Type | WLCSP-6 (1x1.5) |
Key Features
- Voltage Monitoring: Monitors power supply voltage levels and asserts a reset signal if the voltage falls below the set threshold.
- Watchdog Timer: Includes an on-chip watchdog timer that resets the microprocessor if it fails to strobe within a preset timeout period.
- Manual Reset Input: Allows for external reset via a push-button.
- Low Power Consumption: Ultralow power consumption, making it suitable for battery-powered portable devices and energy meters.
- Glitch Rejection: Features an input glitch filter to filter out transient glitches on the monitoring pins.
- Active Low, Open-Drain Reset Output: Ensures the reset output is valid as soon as VCC exceeds 0.9 V.
Applications
- Portable Devices: Suitable for battery-powered portable equipment due to its low power consumption.
- Energy Meters: Used in energy meters and other power efficiency sensitive systems.
- Transformer Load Monitoring Equipment: Can be used in transformer load monitoring equipment and external alarm systems.
- Display Systems: Applicable in various display systems requiring voltage supervision.
Q & A
- What is the primary function of the ADM8615Y100ACBZ-R7?
The primary function is to monitor power supply voltage levels and ensure code execution integrity in microprocessor-based systems.
- What is the operating temperature range of the ADM8615Y100ACBZ-R7?
The operating temperature range is -40°C to +85°C.
- What are the voltage monitoring ranges for the ADM8615Y100ACBZ-R7?
The device can monitor voltage levels from 0.5 V to 1.9 V).
- Does the ADM8615Y100ACBZ-R7 have a watchdog timer?
Yes, it includes an on-chip watchdog timer that can reset 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 external reset via a push-button).
- What is the typical leakage current of the ADM8615Y100ACBZ-R7?
The typical leakage current is 5 nA (VWDI = VCC = 5.5 V)).
- What type of package does the ADM8615Y100ACBZ-R7 come in?
The device comes in a WLCSP-6 (1x1.5) package).
- Is the ADM8615Y100ACBZ-R7 suitable for low-power applications?
Yes, it is suitable due to its ultralow power consumption).
- What is the reset output type of the ADM8615Y100ACBZ-R7?
The reset output is active low, open-drain).
- How quickly does the RESET signal assert when the monitored voltage falls below the threshold?
The RESET signal asserts within 23 μs to 26 μs (typical) when the monitored voltage falls below the threshold).
