ISL6144IRZA-T

Current - Output (Max):	--
Base Part Number:	ISL6144
Supplier Device Package:	20-QFN-EP (5x5)
Package / Case:	20-VQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C
Applications:	N+1 Power Supplies, Telecom/Datacom Systems
Voltage - Supply:	9 V ~ 75 V
Current - Supply:	5mA
Series:	--
Delay Time - OFF:	250ns
Delay Time - ON:	1ms
Internal Switch(s):	No
Ratio - Input:Output:	N:1
FET Type:	N-Channel
Type:	N+1 ORing Controller
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Overview

PMIC-OR controllers provide the dynamic voltage and current regulation necessary for reliable and efficient operation in a wide range of systems. The ISL6144IRZA-T is a high-performance, high-dynamic PMIC-OR controller with robust, integrated protection for low-side applications. It also includes an integrated ideal diode for better efficiency, which can be enabled when the controller is in idle or sleep states. This article provides an overview of the ISL6144IRZA-T application field and working principle.

Application Field

The ISL6144IRZA-T is suitable for a variety of low-side applications. It can be used to control a wide range of loads, including but not limited to LEDs, motors and solenoids. It features integrated over temperature and current limit protection, plus input operating voltage as low as 2.5V, making it suitable for lower power and lower voltage applications. The device also allows for a wide range of output voltage and current combinations, with the ability to regulate output voltage and current up to 5A.

Working Principle

The ISL6144IRZA-T operates by using a pulse-width modulation (PWM) technique, using a fixed frequency oscillator as its timing source. Its ideal diode is similarly operated via a PWM signal, maintaining a constant output voltage with zero current during idle and sleep states. The controller also offers low ripple and transient response for optimal system performance.

Advantages

The ISL6144IRZA-T offers several advantages over simpler PMIC-OR controllers, including increased efficiency and optimized power handling. Its integrated ideal diode allows it to operate in the idle and sleep modes more efficiently, while its adjustable rise and fall times allow it to deliver a high frequency output with smooth transitions. Additionally, its wide input voltage range and output current capability make it suitable for a variety of low-side applications.

Conclusion

The ISL6144IRZA-T is an efficient and reliable solution for a variety of low-side applications. Its integrated ideal diode and adjustable rise and fall times help maintain its high efficiency and improved performance. Its high dynamic output voltage and current capabilities make it suitable for a range of applications, and its built-in protection ensures safe and reliable operation.

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