MC34912BACR2

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	System Basis Chip
Current - Supply:	4.5mA
Voltage - Supply:	5.5 V ~ 18 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-LQFP
Supplier Device Package:	32-LQFP (7x7)
Base Part Number:	MC34912

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The MC34912BACR2, a device manufactured by Texas Instruments Inc., is a specialized power management IC, designed for applications where critical timing requirements are necessary. It contains sophisticated power-management features, enabling a wide range of uses. This IC can be found in many applications from automotive and industrial, to medical and general-purpose systems.The MC34912BACR2 is capable of supplying up to 500mA of total current, and is equipped with an integrated switched capacitor regulator that operates on a nominal voltage of +12V. The device features an embedded 1-Kbit EEPROM to store vital parameters, such as the voltage limits, current limit values, and switching frequency. At its core, the IC consists of two main components, the main driver and the buck regulator block.The main driver consists of an array of buck converters, each individually connected to the buck regulator block. These buck converters are optimized to provide a steady load current regardless of input voltage, and can be configured to deliver a constant current across a wide range of input voltages. Additionally, the built-in voltage scaling feature allows the converter to be adjusted for power efficiency, minimizing power dissipation and heat generation.The buck regulator block is responsible for setting the switching frequency, adjusting the output voltage, and current limiting. It also handles up to 8-A peak current, making it an ideal choice for applications that require high power delivery.Using its in-built timer and logic circuitry, the MC34912BACR2 can be used for time-critical applications. It features up to nine externally adjustable frequency settings, and the default frequency can be set through the embedded EEPROM. The integrated voltage circuit can be set to regulate the output voltage, while the current limit circuit provides current protection. This feature makes the IC well-suited for use in high-current applications that may require fast start-up times.Finally, the IC includes over-voltage protection, short-circuit protection, and fault reporting features. These features make it ideal for applications that require reliable and robust power management.The MC34912BACR2 is a highly feature-rich and versatile IC, allowing for a range of use cases in power-hungry applications. Its capabilities make it an attractive choice for applications that require precise control of current and voltage values, or tight control of timing requirements. Thanks to its built-in protection and reporting features, it is also suitable for highly sensitive projects, where a small error can lead to disaster. Its versatility, coupled with its competitive cost, makes the MC34912BACR2 an ideal choice for designers looking for a specialized solution for their power management needs.

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