Overview
The ADM1186-1ARQZ is an integrated, four-channel voltage monitoring and sequencing device produced by Analog Devices Inc. This component is designed to monitor and sequence multiple power supplies, making it essential for various electronic systems that require controlled power-up and power-down sequences. It operates with a power supply range of 2.7 V to 5.5 V on the VCC pin and features four precision comparators to monitor four different voltage rails with high accuracy.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Voltages Monitored | 4 |
| Voltage Threshold | Adjustable/Selectable |
| Output Type | Open Drain or Open Collector |
| Reset Type | Active High |
| Operating Temperature | -40°C to 85°C (TA) |
| Package/Case | 20-SSOP (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Power Supply Range | 2.7 V to 5.5 V |
| Comparator Accuracy | 0.8% |
Key Features
- Powered from 2.7 V to 5.5 V on the VCC pin
- Monitors four supplies via 0.8% accurate comparators
- Digital core supports up and down supply sequencing
- Multiple devices can be cascaded for complex sequencing
- Capacitor programmable supply sequence time delays and a timeout delay to 5% accuracy at 25°C
- Four open-drain enable outputs and an open-drain power-good output
- Open-drain sequence complete pin and bidirectional open-drain fault pin (ADM1186-1 only)
Applications
- Monitor and alarm functions
- Up and down power supply sequencing
- Telecommunication and data communication equipment
- PCs, servers, and notebook PCs
Q & A
- What is the primary function of the ADM1186-1ARQZ? The primary function is to monitor and sequence multiple power supplies.
- What is the operating voltage range for the ADM1186-1ARQZ? The operating voltage range is 2.7 V to 5.5 V.
- How many voltage rails can the ADM1186-1ARQZ monitor? It can monitor four voltage rails.
- What is the accuracy of the comparators in the ADM1186-1ARQZ? The comparators have a worst-case accuracy of 0.8%.
- Can multiple ADM1186-1ARQZ devices be cascaded? Yes, multiple devices can be cascaded for complex sequencing.
- What type of outputs does the ADM1186-1ARQZ have? It has open-drain enable outputs and an open-drain power-good output.
- What is the purpose of the SEQ_DONE pin in the ADM1186-1ARQZ? The SEQ_DONE pin indicates that a power-up sequence is complete.
- What is the operating temperature range for the ADM1186-1ARQZ? The operating temperature range is -40°C to 85°C (TA).
- What package type is the ADM1186-1ARQZ available in? It is available in a 20-SSOP package.
- Is the ADM1186-1ARQZ RoHS compliant? Yes, it is RoHS compliant.
