ISL97677IRZ-TK

Voltage - Output:	45V
Base Part Number:	ISL97677
Supplier Device Package:	32-QFN (5x5)
Package / Case:	32-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Backlight
Dimming:	PWM
Frequency:	500kHz ~ 1.5MHz
Current - Output / Channel:	50mA
Series:	--
Voltage - Supply (Max):	26V
Voltage - Supply (Min):	4.75V
Number of Outputs:	8
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

IRZ97677IRZ-TK is a power management integrated circuit (PMIC) designed for driving LEDs for indoor growing applications. This device offers excellent conversion efficiency, high power density, and a wide input voltage range. Additionally, it features a floating output voltage so that stable and precise control over the output lighting current is achieved without loop compensation. This PMIC can reduce system cost, improve reliability, and provide unmatched performance which makes it an ideal choice for LED grow lighting applications.

Application Field

The IRZ97677IRZ-TK is specifically designed to be used in LED grow lights for indoor applications. Due to its high power density and wide input voltage range, it is capable of providing stable and precise control over the output lighting current. This makes it suitable for applications such as grow tents, self-watering growing containers, automated hydroponic systems and home greenhouses. Additionally, it can be used in lighting applications such as street lights, car headlights, and other automotive lighting applications.

Working Principle

The IRZ97677IRZ-TK is a PMIC designed for powering LEDs. It combines an input switch mode power supply, an output dimming control circuit, and a floating output voltage feedback control loop. The device works by first converting the AC or DC input voltage into a regulated DC bus voltage which is then used to drive the output illumination current. The output voltage is then fed back to the dimming control loop which dynamically adjusts the output voltage based on the output current. This feedback control loop allows for very stable and precise control of the LED lighting current.

Conclusion

The IRZ97677IRZ-TK is a highly efficient PMIC designed for LED grow lighting applications. It features a high power density, wide input voltage range, floating output voltage and a feedback control loop for precise control over the output current. This makes it an ideal choice for lighting applications requiring accurate, reliable and cost-effective illumination.

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