IS31LT3948-GRLS4-TR

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	DC DC Controller
Topology:	Step-Up (Boost)
Internal Switch(s):	No
Number of Outputs:	1
Voltage - Supply (Min):	5V
Voltage - Supply (Max):	100V
Voltage - Output:	--
Current - Output / Channel:	--
Frequency:	--
Dimming:	PWM
Applications:	Automotive, Backlight, Lighting
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOP

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Introduction to IS31LT3948-GRLS4-TR

IS31LT3948-GRLS4-TR is a multi-channel LED driver with integrated current sense and thermal protection functions. It is a product from ISSI company, a leading provider of high performance power management solutions. This device is targeted for energy saving applications such as outdoor lighting, displays and TV backlighting.

Features of IS31LT3948-GRLS4-TR

The IS31LT3948-GRLS4-TR is a high-performance power management integrated circuit (PMIC) with several features to enable efficient and reliable operation. It has an integrated current sense circuit to protect against overloads, allowing the system to operate with minimum power dissipation. The device also has the ability to monitor the temperature of the LEDs, providing over temperature protection and preventing possible losses.The IS31LT3948-GRLS4-TR is designed to provide high-efficiency operation with a wide input voltage range. It is able to operate over a wide temperature range of -40C to +85C, making it suitable for a variety of conditions. The device features 4 channels, making it suitable for multi-channel applications.

Application Fields and Working Principle of IS31LT3948-GRLS4-TR

PMIC - LED Drivers are used in numerous applications to provide efficient, reliable, and cost-effective lighting solutions. The IS31LT3948-GRLS4-TR particularly offers a reliable system for applications such as outdoor lighting, display and TV backlighting, and other energy-saving applications.The IS31LT3948-GRLS4-TR operates on a Pulse Width Modulation (PWM) principle to control the power delivered to each LED channel. The frequency of the pulse width modulation is adjustable, enabling the user to select the desired brightness level. Additionally, the device has an integrated current sense circuit which provides a high accuracy current sensing. This allows the system to operate at peak efficiency and prevent possible overloads. Moreover, the device has an integrated thermal protection circuit which will help minimize power dissipation and thermal runaway.

Advantages of IS31LT3948-GRLS4-TR

The integrated current sense circuit of the IS31LT3948-GRLS4-TR makes it highly efficient and power efficient. Furthermore, the wide input voltage range makes it suitable for a variety of applications. Additionally, the device features 4 channels, allowing it to be used in multi-channel applications. The ability to adjust the frequency of the pulse width modulation also enables flexibility when it comes to selecting the desired brightness level. Lastly, the integrated thermal protection circuit helps minimize power dissipation and thermal runaway.

Conclusion

The IS31LT3948-GRLS4-TR is a high performance PMIC – LED Driver which offers an efficient and reliable solution for energy saving applications. It has a wide input voltage range, integrated current sense and thermal protection functions to ensure efficient and safe operation. An adjustable PWM frequency allows the user to select the desired brightness levels. These features make the IS31LT3948-GRLS4-TR an ideal choice for various applications where high brightness and efficiency are required.

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