The LTC1643AHIGN is a specialized integrated circuit designed by Linear Technology, now part of Analog Devices, tailored for power control and monitoring in notebook computers and other portable electronic devices. This advanced hot swap controller ensures safe board insertion and removal from a live backplane or other power sources.

Key Features

• Electronic Circuit Breaker: The device includes precise electronic circuit breaker functionality to protect the system from overcurrent conditions.
• Adjustable Overcurrent Protection: Users can adjust the overcurrent trip level to meet specific system requirements, enhancing the flexibility of the device.
• Automatic Retry or Latch Off: After an overcurrent fault, the LTC1643AHIGN can be configured to automatically attempt to power up again or to latch off, depending on the needs of the application.
• Under Voltage Lockout: The under voltage lockout (UVLO) feature ensures that the device operates at the correct voltage levels, preventing malfunctions due to insufficient power supply.
• Gate Voltage Clamped at 12V: The internal gate voltage is clamped at 12V to protect the external MOSFET from over-voltage stress.
• High Side Drive: The controller is designed for a high side drive, which is suitable for positive supply voltages.

Applications

The LTC1643AHIGN is ideal for a variety of applications where power control and safety are paramount. It is commonly used in:

• Notebook computers
• Portable electronics
• Hot swap systems
• Peripheral power supplies

Technical Specifications

The LTC1643AHIGN operates over a wide range of supply voltages and offers a robust set of features for power management. Some of its technical specifications include:

• Supply Voltage Range: 2.7V to 16.5V
• Operating Temperature Range: -40°C to 85°C
• Packaging: 16-Lead SSOP

With its precise control and monitoring capabilities, the LTC1643AHIGN from Linear Technology is an essential component for any system requiring reliable power management and protection.