ADM1166ACPZ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance, Low-power, Precision Voltage Monitoring
• Package: LFCSP (Lead Frame Chip Scale Package)
• Essence: Voltage Supervisor and Sequencer
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low, Open-Drain
• Number of Supervisors: 6
• Watchdog Timer: Yes
• Reset Threshold Options: Adjustable or Fixed
• Fault Detection Timeout: Programmable
• Power-On Reset Delay: Programmable
• Manual Reset Input: Yes
• Power-Good Output: Yes
• Quiescent Current: 20µA (typical)

Detailed Pin Configuration

The ADM1166ACPZ has a total of 16 pins. The pin configuration is as follows:

1. VCC
2. GND
3. RESET1
4. RESET2
5. RESET3
6. RESET4
7. RESET5
8. RESET6
9. MR
10. WD
11. PGOOD
12. FAULT
13. SDA
14. SCL
15. INT
16. NC

Functional Features

• Monitors up to six voltage supplies simultaneously
• Provides precise power-on reset and watchdog timer functionality
• Offers adjustable or fixed reset thresholds for flexibility
• Programmable fault detection timeout enhances system reliability
• Manual reset input allows external control over the reset function
• Power-good output indicates when all voltages are within specified limits

Advantages and Disadvantages

Advantages

• High-performance voltage monitoring for improved system reliability
• Low-power consumption for energy-efficient operation
• Small package size enables space-saving designs
• Wide supply voltage range allows compatibility with various systems

Disadvantages

• Limited number of supervisors (up to six)
• Requires additional external components for complete functionality

Working Principles

The ADM1166ACPZ is a voltage supervisor and sequencer IC designed to monitor multiple power supplies in a system. It ensures proper power sequencing and provides reliable reset signals during power-up and fault conditions.

The device continuously monitors the voltages of up to six supplies and asserts a reset signal if any of them fall below the programmed threshold. The reset output remains active until all voltages rise above their respective thresholds, ensuring a controlled startup sequence.

Additionally, the ADM1166ACPZ features a watchdog timer that detects system malfunctions by monitoring a specific input within a programmable timeout period. If the input is not toggled within the specified time, a reset signal is generated.

Detailed Application Field Plans

The ADM1166ACPZ finds applications in various fields where precise voltage monitoring and power management are critical. Some potential application areas include:

1. Industrial Control Systems: Ensuring reliable operation of control units and preventing damage due to voltage fluctuations.
2. Telecommunications Equipment: Monitoring power supplies in network infrastructure devices to maintain uninterrupted communication.
3. Automotive Electronics: Sequencing power supplies in automotive systems to prevent damage and ensure proper functioning.
4. Medical Devices: Providing accurate voltage supervision in medical equipment for patient safety and system integrity.
5. Consumer Electronics: Managing power-on reset and voltage monitoring in portable devices, ensuring stable operation.

Detailed and Complete Alternative Models

1. ADM1166ACPZ-REEL7: Similar to ADM1166ACPZ, but packaged in a reel of 750 units.
2. ADM1166ACPZ-REEL: Similar to ADM1166ACPZ, but packaged in a reel of 4000 units.
3. ADM1166ACPZ-REEL7-ND: Similar to ADM1166ACPZ, available from a different distributor.

These alternative models offer similar functionality and characteristics as the ADM1166ACPZ, providing flexibility in choosing the most suitable option for specific applications.

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