ADP1871ARMZ-1.0-R7 Integrated Circuits (ICs)

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ADP1871ARMZ-1.0-R7 is a DC-DC switching controller from the PMIC (power management integrated circuit) voltage regulator family. It is a highly efficient, step-down power solution, specifically designed for automotive applications, allowing manufacturers to reduce their carbon footprint and increase the functionality, durability, and reliability of their vehicle. The ADP1871ARMZ-1.0-R7 is a monolithic integrated circuit (IC) that contains a full feature set of voltage regulator, power converter, and power supply management functions. It provides outstanding power efficiency and performance, enabling the design of high-FOM, high-reliability system-level power solutions.

The device consists of a main switching regulator, a pre-regulator, an output buffer, and auxiliary circuitry. The main switching regulator is composed of an H-bridge circuit, a rectifier, an error comparator, and an amplifier. The pre-regulator consists of a charge pump, an error comparator, and an amplifier. The output buffer is composed of a P-FET, a driver circuit, an error amplifier, and a voltage reference. The wide operating voltage range—from 3.3V up to 18V makes the ADP1871ARMZ-1.0-R7 suitable for a wide range of automotive applications, from 12V batteries and 24V systems, to the emerging 48V electrical system architectures.

The device is ideal for various automotive applications, such as lighting and infotainment, including head units, displays, and radio systems, as well as powertrain applications including HVAC (heating ventilation and air conditioning), and starter/generator systems. The ADP1871ARMZ-1.0-R7’s adjustable current and voltage limit feature can be tailored to optimize system thermal performance, enable system-level power sequencing and enable power point tracking for solar applications.

The ADP1871ARMZ-1.0-R7 integrates a full-featured power management and power conversion system-on-chip controller. It\'s the first automotive PMIC solution to integrate both a main switching regulator and a pre-regulator with a full-featured digital power control, featuring a comprehensive suite of digital power control functions including dynamic voltage scaling, power sequencing, and power point tracking. The ADP1871ARMZ-1.0-R7 also offers very low quiescent current, programmable current limits, and adjustable voltage limits. It\'s also the first solution to provide adjustable thermal limit, allowing for optimized system performance over the system\'s full range of operating conditions. The ADP1871ARMZ-1.0-R7 also incorporates a Comprehensive Failure Detection System to detect over-temperature, low-battery input, and output fault conditions

The device\'s flexibility and precision control, low-noise, high-efficiency performance, and fail-safe features make the ADP1871ARMZ-1.0-R7 an ideal solution for a variety of automotive applications. Its adjustable thermal limit allows for optimized system performance over the system\'s full range of operating conditions. With its adjustable current and voltage limit, programmable current limit, and adjustable voltage limit, the user is able to precisely control the power supply to the system, optimizing thermal performance and system reliability. The comprehensive failure detection system monitors over-temperature, low-battery input and output fault conditions to ensure optimal system performance.

In summary, the ADP1871ARMZ-1.0-R7 is an ideal solution for an array of automotive applications and provides outstanding performance for reliable operation in powertrain and infotainment systems. The device\'s performance and feature set provide users with the ability to optimize their systems for improved thermal performance and system reliability.

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