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HV9918K7-G

LED Driver with 1500uA Supply Current 8-Pin DFN EP T/R

Manufacturer:

Microchip
Mfr.Part #:

HV9918K7-G
Datasheet:

HV9918K7-G Datasheet (PDF)
Mounting Style:

SMD/SMT
Number of Outputs:

1 Output
Output Current:

700 mA
Input Voltage, Min:

4.5 V
EDA/CAD Models:

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HV9918K7-G General Description

The HV9918K7-G is a high voltage LED driver IC designed for driving LED strings with constant current regulation. It can operate from a wide input voltage range of 4.5V to 400V, making it suitable for a variety of lighting applications. The IC features a high-side current sense amplifier to achieve accurate current regulation, a PWM dimming input for brightness control, and an internal switch to minimize external components.The HV9918K7-G also includes protection features such as overvoltage protection, overcurrent protection, and thermal shutdown to ensure the safety and reliability of the LED driver. It is designed to be highly efficient, with low power dissipation and high power factor correction. The IC comes in a compact SOIC-8 package, making it easy to integrate into LED lighting designs.

Key Features

Wide input voltage range: 4.1V to 75V

1.4A high-side current source

Adjustable switching frequency up to 2MHz

Over-temperature protection

Under-voltage lockout

External resistor sets LED current

PWM dimming control

LED open/short circuit protection

Application

The HV9918K7-G is typically used in lighting applications, such as LED drivers for bulbs, tubes, and luminaires

It can also be utilized in power supply designs for various industrial and commercial applications, as well as in motor control circuits and automotive lighting systems

Specifications

Product Category	LED Lighting Drivers	Mounting Style	SMD/SMT
Number of Outputs	1 Output	Output Current	700 mA
Input Voltage, Min	4.5 V	Input Voltage, Max	40 V
Topology	Buck	Operating Frequency	2 MHz
Output Voltage	Adjustable	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 125 C	Features	PWM Dimming, Constant Current
For Use With	High Brightness LEDs	Input Voltage	4.5 V to 40 V
Number of Channels	1 Channel	Pd - Power Dissipation	1.6 W
Product Type	LED Lighting Drivers	Factory Pack Quantity	3300
Subcategory	Driver ICs	Supply Current - Max	1.5 mA
Unit Weight	0.001319 oz