LTC4151CDD-1

The LTC4151CDD-1 is a high-side power monitor IC from Linear Technology (LT) designed for applications requiring precise current and voltage monitoring. It operates across a broad voltage range of 7V to 80V, making it suitable for demanding environments like telecom infrastructure and automotive systems.

This device features a 12-bit Analog-to-Digital Converter (ADC) that continuously measures high-side current, input voltage, and an additional external voltage. Data is accessible through an I2C interface, allowing easy integration with host controllers. The LTC4151CDD-1 supports both continuous scan and snapshot measurement modes for flexible data acquisition.

For power-sensitive applications, a dedicated shutdown pin is available, reducing quiescent current to 120µA in shutdown mode. The LTC4151CDD-1 is offered in multiple package options, including 10-lead MSOP, 10-lead 3mm x 3mm DFN, and 16-lead SO packages, catering to various board space requirements. Its robust operating temperature range and wide voltage input make it a versatile choice for industrial, automotive, and consumer electronics.

Key features include a wide operating voltage range from 7V to 80V, 12-bit resolution for accurate measurements, and an I2C interface for communication. The device also includes an additional ADC input for monitoring external voltages. The LTC4151-1 variant, which this part belongs to, features split SDA pins suitable for opto-isolation.