LED Drivers

LEDs are making their entrance into the lighting field using modern high-efficiency semiconductor material compounds and structures. Solid-state lighting (SSL), offers new possibilities and advantages for the end-user. By using appropriate drivers, control strategy and LEDs, the qualitative and quantitative aspects of the light can be fully controlled. LED drivers are low-voltage devices that convert the line-voltage 120/220/277 V power to the low voltage needed for the LEDs, and may also interpret control signals to dim the LEDs. LED drivers come in either constant current or constant voltage. These two types of drivers are NOT interchangeable, and it is the design of the LED load that determines which driver is appropriate. Both LED lamps and LED fixtures require LED drivers.


There are two ways to control the brightness of an LED. The first method is using Analog dimming, which involves varying the forward current through the LED to adjust the brightness. The second method uses a digital dimming technique involving switching the forward current on and off for short periods of time. The human eye averages these on and off times together for a perceived brightness.


The cheapest and most basic way to drive LEDs is to use a constant voltage power supply and a resistor in series with the LED to limit the current flowing through it. The selected resistance depends on the magnitude of the voltage source (VIN), on the value of the LED’s forward voltage and the forward current of the LED.


Linear power supply (LPS) is an economical, simple and reliable way of driving LEDs. LPSs are based on either integrated circuit (IC) linear regulator or on bipolar junction or field effect transistors operating in the linear region. Switched-mode power supplies (SMPS) lack the main drawbacks of linear power supplies and are therefore the main solution to drive LEDs. Because LEDs are DC components, just DC/DC and AC/DC SMPS types are considered. Efficiency, controllability, small size and low weight are their main advantages over the linear power supplies. An SMPS can provide, if necessary, high currents (e.g., more than 30A) at very low voltages.


The selection of the most appropriate topology to drive LEDs depends on the standards, specifications and application requirements like operation environment conditions, system input voltage, LEDs’ forward voltage, number of LEDs and circuit array.


Intelligent drivers are usually based on ASICs switching microcontrollers which include programmable flash memory (EEPROMs), several on-chip Pulse-Width Modulation (PWM) controllers, ADCs (analogue-to-digital converter) and DACs (digital-to-analogue converter) channels. Microcontroller-based LED drivers bring additional benefits such as operational flexibility, efficiency, reliability, controllability and intelligence to the system.


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Contract pricing display is unavailable at the moment. Prices shown are standard retail prices, orders placed will have contract pricing applied when processed.

  Manufacturer Part No Newark Part No. Manufacturer / Description
Availability Price for:
Price
Quantity
NSI50010YT1G
NSI50010YT1G - LED Driver, Linear, 0V to 50V input, 1 Output, 1 MHz switch-freq., 10 mA out, SOD-123-2

60R6439

ON SEMICONDUCTOR

LED Driver, Linear, 0V to 50V input, 1 Output, 1 MHz switch-freq., 10 mA out, SOD-123-2

CCR & LED DRIVER, LINEAR, SOD-123-2; Device Topology:Linear; No. of Outputs:1Outputs; Output Current:10mA; Output Voltage:-; Driver Case Style:SOD-123; No. of Pins:2Pins; Input Voltage Min:0V; Input Voltage Max:50V; Product Range:- RoHS Compliant: Yes

  • 2,483 available for next business day delivery
  • 4,766 UK Stock: 5-7 business days shipping for in stock items.
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2,483 in stock for same day shipping: Order before 8pm EST Standard Shipping (Mon – Fri. Excluding National Holidays)

4,766 UK Stock: 5-7 business days shipping for in stock items.

More stock available week commencing 9/7/20

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HV98101T-E/CH
HV98101T-E/CH - LED Driver AC/DC, Buck-Boost, 230V Input, 15W/150mA Output Max,320kHz, 1 Output, SOT-23-6

98Y8837

MICROCHIP

LED Driver AC/DC, Buck-Boost, 230V Input, 15W/150mA Output Max,320kHz, 1 Output, SOT-23-6

LED DRIVER, BUCK-BOOST, 320KHZ, SOT-23-6; Device Topology:Buck-Boost; Input Voltage Min:-; Input Voltage Max:230V; Output Voltage Max:-; Output Current Max:150mA; Switching Frequency:320kHz; No. of Outputs:1Outputs; IC Mounting:SMD RoHS Compliant: Yes

3,050 in stock

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3,050 in stock for same day shipping: Order before 8pm EST Standard Shipping (Mon – Fri. Excluding National Holidays)

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HV9961LG-G
HV9961LG-G - LED Driver, Buck (Step Down), 8V to 450V input, 1 Output, NSOIC-8

84X5961

MICROCHIP

LED Driver, Buck (Step Down), 8V to 450V input, 1 Output, NSOIC-8

LED DRIVER, BUCK, NSOIC-8; Device Topology:Buck (Step Down); Input Voltage Min:8V; Input Voltage Max:450V; Output Voltage Max:-; Output Current Max:-; Switching Frequency:-; No. of Outputs:1Outputs; IC Mounting:SMD; No. of Pins:8PinsRoHS Compliant: Yes

1,000 in stock

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1,000 in stock for same day shipping: Order before 8pm EST Standard Shipping (Mon – Fri. Excluding National Holidays)

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TLC59116IPWR
TLC59116IPWR - Led Driver, 16 Outputs, Constant Current, 4V-4V in, 1MHz switch, 17V/120mA out, TSSOP-28

85M0144

TEXAS INSTRUMENTS

Led Driver, 16 Outputs, Constant Current, 4V-4V in, 1MHz switch, 17V/120mA out, TSSOP-28

LED DRIVER, CONSTANT CURRENT TSSOP28; Device Topology:Constant Current; Input Voltage Min:3V; Input Voltage Max:5.5V; Output Voltage Max:17V; Output Current Max:120mA; Switching Frequency:1MHz; No. of Outputs:16Outputs RoHS Compliant: Yes

3,236 in stock

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3,236 in stock for same day shipping: Order before 8pm EST Standard Shipping (Mon – Fri. Excluding National Holidays)

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TPS61165DRVR
TPS61165DRVR - Led Driver, Boost (Step Up), PWM Dimming, 3V-18V in, 1.2MHz switch, 38V/1.2A out, SON-6

94T5099

TEXAS INSTRUMENTS

Led Driver, Boost (Step Up), PWM Dimming, 3V-18V in, 1.2MHz switch, 38V/1.2A out, SON-6

WHITE LED DRIVER, BOOST, SON-6; Device Topology:Boost (Step Up); Input Voltage Min:3V; Input Voltage Max:18V; Output Voltage Max:38V; Output Current Max:1.2A; Switching Frequency:1.2MHz; No. of Outputs:1Outputs; IC Mounting:SMD RoHS Compliant: Yes

2,243 in stock

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2,243 in stock for same day shipping: Order before 8pm EST Standard Shipping (Mon – Fri. Excluding National Holidays)

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LV52206XA-MH
LV52206XA-MH - LED Driver, Boost (Step Up), 2.7-5.5V input, 2 Outputs, 600 kHz switch-freq., 40V/27 mA out, WLP-9

33X3757

ON SEMICONDUCTOR

LED Driver, Boost (Step Up), 2.7-5.5V input, 2 Outputs, 600 kHz switch-freq., 40V/27 mA out, WLP-9

LED DRIVER, PWM/1-WIRE, 600KHZ, WLP-9; Device Topology:Boost (Step Up); Input Voltage Min:2.7V; Input Voltage Max:5.5V; Output Voltage Max:40V; Output Current Max:27mA; Switching Frequency:600kHz; No. of Outputs:2Outputs RoHS Compliant: Yes

1,980 in stock

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1,980 in stock for same day shipping: Order before 8pm EST Standard Shipping (Mon – Fri. Excluding National Holidays)

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HV9923N8-G
HV9923N8-G - Led Driver, Buck (Step Down), 20V-400V in, 30mA out, TO-243AA-3

67X5279

MICROCHIP

Led Driver, Buck (Step Down), 20V-400V in, 30mA out, TO-243AA-3

LED DRIVER, BUCK, TO-243AA-3; Device Topology:Buck (Step Down); Input Voltage Min:85V; Input Voltage Max:264V; Output Voltage Max:-; Output Current Max:30mA; Switching Frequency:-; No. of Outputs:1Outputs; IC Mounting:SMD RoHS Compliant: Yes

0

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    More stock available week commencing 8/31/20

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

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NCL30083ADMR2G
NCL30083ADMR2G - Led Driver, Constant Current, PWM Dimming, 16V-20V in, 150kHz switch, 300V/3A out, DSBGA-8

72W3917

ON SEMICONDUCTOR

Led Driver, Constant Current, PWM Dimming, 16V-20V in, 150kHz switch, 300V/3A out, DSBGA-8

LED DRIVER, CONSTANT CURRENT, PWM, MICRO SMD-8; Device Topology:Constant Current; Input Voltage Min:16V; Input Voltage Max:20V; Output Voltage Max:300V; Output Current Max:3A; Switching Frequency:150kHz; No. of Outputs:1Outputs RoHS Compliant: Yes

0

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    More stock available week commencing 11/30/20

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

Restricted Item
CL220K4-G
CL220K4-G - Led Driver, Constant Current, 5V-220V in, 220V/20mA out, TO-252AA-3

67X5038

MICROCHIP

Led Driver, Constant Current, 5V-220V in, 220V/20mA out, TO-252AA-3

LED DRIVER, CONSTANT CURRENT, TO-252AA-3; Device Topology:Constant Current; No. of Outputs:1Outputs; Output Current:20mA; Output Voltage:220V; Driver Case Style:TO-252AA; No. of Pins:3Pins; Input Voltage Min:5V; Switching Frequency:-RoHS Compliant: Yes

0

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    More stock available week commencing 8/10/20

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

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CL7SG-G
CL7SG-G - Led Driver, Constant Current, PWM Dimming, 6.5V-90V in, 90V/100mA out, NSOIC-8

67X5051

MICROCHIP

Led Driver, Constant Current, PWM Dimming, 6.5V-90V in, 90V/100mA out, NSOIC-8

LED DRIVER, CONSTANT CURRENT, NSOIC-8; Device Topology:Constant Current; No. of Outputs:1Outputs; Output Current:100mA; Output Voltage:90V; Driver Case Style:NSOIC; No. of Pins:8Pins; Input Voltage Min:6.5V; Input Voltage Max:90V RoHS Compliant: Yes

0

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    More stock available week commencing 9/14/20

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

Restricted Item
HV9921N8-G
HV9921N8-G - Led Driver, Buck (Step Down), 20V-400V in, 20mA out, TO-243AA-3

67X5275

MICROCHIP

Led Driver, Buck (Step Down), 20V-400V in, 20mA out, TO-243AA-3

LED DRIVER, BUCK, 400V, TO-243AA-3; Device Topology:Buck (Step Down); Input Voltage Min:85V; Input Voltage Max:264V; Output Voltage Max:-; Output Current Max:20mA; Switching Frequency:-; No. of Outputs:1Outputs; IC Mounting:SMD RoHS Compliant: Yes

0

+ Check Stock & Lead Times
    More stock available week commencing 8/31/20

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

Restricted Item