Overview
The ADM1185ARMZ-1REEL7, produced by Analog Devices Inc., is an integrated, 4-channel voltage monitoring and sequencing device. This component is designed to monitor and sequence multiple voltage supplies, making it suitable for various applications including power supply sequencing, monitor and alarm functions, and use in telecommunication and data communication equipment, as well as PCs and servers. It operates from a 2.7V to 5.5V power supply on the VCC pin and features a high degree of accuracy and reliability.
Key Specifications
| Parameter | Min | Max | Unit | Conditions | |
|---|---|---|---|---|---|
| Operating Voltage Range (VCC) | 2.7 | 3.3 | 5.5 | V | |
| Supply Current (IVCC) | 24 | 80 | μA | ||
| Input Current (IVINLEAK) | -20 | 20 | nA | VVINx = 0.7 V | |
| Input Rising Threshold (VTHR) | 0.5952 | 0.6000 | 0.6048 | V | |
| Output Low Voltage (VOUTL) | 0.4 | V | VCC = 2.7 V, ISINK = 2 mA | ||
| No. of Monitored Voltages | 4 | ||||
| Reset Output Type | Active-High, Open-Drain | ||||
| No. of Pins | 10 | ||||
| IC Case / Package | MSOP | ||||
| IC Mounting | Surface Mount | ||||
| Delay Time | 190 | ms | |||
| Operating Temperature Min | -40 | °C | |||
| Operating Temperature Max | 85 | °C |
Key Features
- Powered from 2.7V to 5.5V on the VCC pin
- Monitors 4 supplies via 0.8% accurate comparators
- Logical core with internal timeouts provides power supply sequencing and fault protection
- 4 inputs can be programmed to monitor different voltage levels with resistor dividers
- 3 open-drain enable outputs and 1 open-drain power-good output (PWRGD)
- Maximum supply current of 80μA
- Propagation delay of 30μs low-to-high and high-to-low at VCC = 3.3V
- 10-lead MSOP package
- Operating temperature range from -40°C to 85°C
Applications
- Monitor and alarm functions
- Power supply sequencing
- Telecommunication and data communication equipment
- PCs and servers
Q & A
- What is the operating voltage range of the ADM1185?
The ADM1185 operates from 2.7V to 5.5V on the VCC pin.
- How many voltage supplies can the ADM1185 monitor?
The ADM1185 can monitor 4 voltage supplies.
- What is the accuracy of the voltage comparators in the ADM1185?
The voltage comparators have a worst-case accuracy of 0.8%.
- What type of output does the ADM1185 have?
The ADM1185 has active-high, open-drain outputs.
- What is the maximum supply current of the ADM1185?
The maximum supply current is 80μA.
- What is the operating temperature range of the ADM1185?
The operating temperature range is from -40°C to 85°C.
- What package type is the ADM1185 available in?
The ADM1185 is available in a 10-lead mini small outline package (MSOP).
- Can the ADM1185 be used for power supply sequencing?
Yes, the ADM1185 is designed for power supply sequencing and fault protection.
- What are the typical applications of the ADM1185?
Typical applications include monitor and alarm functions, telecommunication and data communication equipment, and PCs/servers.
- Is the ADM1185 RoHS compliant?
Yes, the ADM1185 is RoHS compliant.
