ICL7673CBA

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Source Selector Switch
FET Type:	N and P-Channel
Ratio - Input:Output:	2:1
Internal Switch(s):	Yes
Current - Output (Max):	38mA
Current - Supply:	1.5µA
Voltage - Supply:	2.5 V ~ 15 V
Applications:	Battery Backup, Industrial/Automotive, High Current Switch
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	ICL7673

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ICL7673CBA Application Field and Working Principle

The ICL7673CBA is a type of PMIC (Power Management Integrated Circuit) specially designed for OR Controllers and Ideal Diodes. It features a programmable output voltage and provides stable and reliable power delivery to downstream circuits. The device has two main functions: OR Controllers and Ideal Diodes.1. OR ControllersOR Controller integrated circuit, or ORC, is an power management integrated circuit (PMIC) designed to achieve the purpose of ORing two input voltages. To achieve accurate ORing, the ICL7673CBA uses many functions such as input voltage detection, voltage level shift, and output voltage tracking. When the two input voltages are equal, the ORC will select the higher voltage. If the two input voltages are different, the ORC will select the higher voltage and will keep it at the same level as the lower voltage. This mode of operation provides an ideal ORing capability.2. Ideal DiodesIdeal Diodes are a type of power management circuit that allows for the efficient delivery of power from an input source to a downstream load. The ICL7673CBA is specifically designed for Ideal Diodes. They are nonlinear current control circuits which sense the polarity of the input voltages and directs the current from the highest voltage input, ensuring a constant current at the output. This function offers significant advantages in terms of power efficiency, as well as improved EMI/RFI protection.3. Working PrincipleAt the heart of the ICL7673CBA is the bipolar switching transistor, which controls the flow of current between two power sources. When the two voltages are different, the transistor switches rapidly between them, allowing for a seamless transition from one voltage to another. Additionally, the ICL7673CBA includes a slew-rate correction circuit, which reduces voltage ripple and noise. As the current is tracked by the ICL7673CBA, its output follows the input voltage, allowing for continuous ORing operation. Furthermore, the ICL7673CBA is also designed to prevent current flow when the input voltages are reversed. In conclusion, the ICL7673CBA is an excellent PMIC solution for OR Controllers and Ideal Diodes. Its features of output voltage tracking, slew-rate correction circuit and prevention of current flow when input voltages are reversed make it an ideal choice for power management applications. With its high efficiency and reliability, the ICL7673CBA is a great solution for OR Controllers and Ideal Diodes.

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