LV5234V-TLM-H

Voltage - Output:	42V
Supplier Device Package:	30-SSOP
Package / Case:	30-LSSOP (0.220", 5.60mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 75°C (TA)
Applications:	--
Dimming:	PWM
Frequency:	1MHz
Current - Output / Channel:	100mA
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	4.5V
Number of Outputs:	9
Internal Switch(s):	Yes
Topology:	--
Type:	Linear
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LV5234V-TLM-H is part of the LV53xx series of Regulated Constant Current Output LED Drivers designed by Sanken Electric Co Ltd. These devices are uniquely designed to drive LEDs with high efficiency and meet the requirements of applications[1].

Application Field

The LV5234V-TLM-H is a Regulated Constant Current Output LED Driver suitable for driving low-power LEDs, such as those found in displays for mobile phones, displays for digital cameras, etc. The LV5234V-TLM-H is also suitable for driving high-power LEDs with a constant current. Furthermore, it can also be used to boost a buck regulator or DC/DC converter, as well as driving Unregulated Constant Current Output LED Drivers.

Working Principle

The LV5234V-TLM-H consists of a two-stage buck converter and two current mirrors. The two-stage buck converter generates a constant current output, while the two current mirrors allow the LED driver to be used as a voltage source or current source. The LV5234V-TLM-H also employs a voltage feed-forward control scheme to limit the output current at its maximum value.In addition, the LV5234V-TLM-H also provides a current limiting functionality at the input stage. This feature allows the LED driver to protect itself from sudden overcurrent situations, such as those resulting from a faulty LED or connection.

Conclusion

The LV5234V-TLM-H is a Regulated Constant Current LED Driver from Sanken Electric Co Ltd. It is suitable for driving both low-power and high-power LEDs, and is capable of providing both voltage and current outputs. It also has built-in current limiting functionality for protection. For these reasons, it is an ideal choice for driving LEDs in a wide range of applications.

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