LP3936SL/NOPB Integrated Circuits (ICs)

Voltage - Output:	5.3V
Base Part Number:	LP3936
Supplier Device Package:	32-TLGA (4.5x5.5)
Package / Case:	32-WFLGA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Backlight, Camera Flash
Dimming:	PWM
Frequency:	1MHz
Current - Output / Channel:	25mA, 120mA (Flash)
Series:	--
Voltage - Supply (Max):	6V
Voltage - Supply (Min):	3V
Number of Outputs:	9
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

LP3936SL/NOPB is a High Power LED Driver from Texas Instruments. It is a dual-channel, serial-input PWM dimming LED driver with integrated MOSFETs, capable of driving up to 10 LEDs in series at up to 1.8V per LED. With a wide range of features, this LED driver offers adaptability for a variety of applications and maximum efficiency for LED lighting. It is ideal for LED backlight panels and light strips used in LCDs, LED street lamps and LED industrial lighting.

LP3936SL/NOPB Application Field and Working Principle

LP3936SL/NOPB is a high power LED driver for the LED lighting applications. It is designed to regulate the current for up to 10 LEDs in series with an input voltage range from 4.5V to 20V. It utilizes an open-loop configuration with analog current control to enable accurate current control over the LED current. This LED driver also features an external enable pin which allows the user to easily enable and disable the LED driver.The LP3936SL/NOPB operates by passing a PWM dimming signal through a high-gain error amplifier, which controls the current through the LEDs. With the adjustable reference current, you can customize the LED current up to 1.8V per LED. The device also features thermal protection and short-circuit protection which limits the risk of damage to the LEDs due to over-current or overheating.

Benefits of LP3936SL/NOPB

The LP3936SL/NOPB offers several benefits for LED lighting applications:

• High efficiency – The LP3936SL/NOPB is designed for maximum efficiency to extend battery life and reduce system costs.
• Wide voltage range – With an input voltage range of 4.5V to 20V, it is suitable for applications from mobile to industrial.
• Analog current control – The device offers precise current regulation for up to 10 LEDs in series at up to 1.8V per LED.
• External enable pin – The device offers an external enable pin to easily enable and disable the LED driver.
• Thermal and short circuit protection – The device features both thermal and short circuit protection to prevent damage to the LEDs.

Conclusion

The LP3936SL/NOPB is a high power LED driver from Texas Instruments. It is ideal for LED backlight panels and light strips used in LCDs, LED street lamps and LED industrial lighting. With its wide range of features, this LED driver offers adaptability for a variety of applications and maximum efficiency for LED lighting. Its features include an adjustable reference current, analog current control, an external enable pin and thermal and short circuit protection.

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