This Product Selection Guide contains information to help select products in the LED Drivers category on DigiKey.com
Devices in the LED driver PMIC (Power Management Integrated Circuit) family are used to supply a current flow of controlled value to a load, typically a Light Emitting Diode, from a power source having a nominally fixed voltage. Key differentiators from the very similar products designed for voltage regulation include a characteristically lower feedback voltage (to improve system efficiency) and high prevalence of provisions for external control of the device’s operating point, used to implement dimming functions in lighting applications.
SelectionCharacteristics
Type: Indicates the style and configuration of the device.
Topology: The internal circuit configuration of the device, determining characteristics of its behavior and functionality.
Internal Switch(s): Indicates whether or not a device integrates the power transistor(s) needed for manipulation of the power source a device is intended to control.
Number of Outputs: Indicates the number of output circuits provided.
Voltage - Supply (Min): The minimum supply voltage required for proper device operation.
Voltage - Supply (Max): The maximum supply voltage the device can tolerate without risking damage.
Voltage - Output: Typically given as a range, this indicates the maximum and minimum voltage levels the part is capable of producing on its output side.
Current - Output / Channel: Typically this indicates the maximum current each output channel can provide.
Frequency: Indicates the device’s operating or switching frequency range.
Dimming: Indicates if a device includes provisions for varying the electrical output delivered to a load in an end application. May also describe the means by which a desired output set point is communicated to a device.
Applications: Application is the type of equipment or environment the device will be used in, typically they are tested and rated by a third party to ensure certain minimum standards for the application they are intended for.
Operating Temperature: Recommended operating temperature, typically given in a range or as a maximum. Exceeding these temperatures may affect performance or damage the device and other system components.
Mounting Type: Indicates how the device is attached.
Package / Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the supplier device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
Supplier Device Package: This is what the manufacturer calls the package of this device. They are manufacturer specific. It is typically best to use the actual dimensions from the datasheets rather than to go by this terminology when designing your circuit.
ProductExamples
| MFR PART # | TLC5916IN |
|---|---|
| DIGIKEY PART # | 296-24383-5-ND |
| MANUFACTURER | Texas Instruments |
| DESCRIPTION | LED Driver IC 8 Output Linear Shift Register Dimming 120mA 16-PDIP |
| DATASHEET | Click Here |
| MFR PART # | MAX1554ETA+T |
|---|---|
| DIGIKEY PART # | MAX1554ETA+TTR-ND - Tape & Reel (TR) |
| MANUFACTURER | Analog Devices Inc./Maxim Integrated |
| DESCRIPTION | LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) Analog, PWM Dimming 970mA (Switch) 8-TDFN (3x3) |
| DATASHEET | Click Here |
| MFR PART # | BCR420UW6-7 |
|---|---|
| DIGIKEY PART # | BCR420UW6-7DITR-ND - Tape & Reel (TR) |
| MANUFACTURER | Diodes Incorporated |
| DESCRIPTION | LED Driver IC 1 Output Linear PWM Dimming 350mA SOT-26 |
| DATASHEET | Click Here |
| MFR PART # | IS31FL3193-DLS2-TR |
|---|---|
| DIGIKEY PART # | 2521-IS31FL3193-DLS2-TR-ND - Tape & Reel (TR) |
| MANUFACTURER | Lumissil Microsystems |
| DESCRIPTION | LED Driver IC 3 Output Linear Dimming 42mA 10-DFN (3x3) |
| DATASHEET | Click Here |
MediaLinks
Videos
Thermal design part 1 - How to make the best contact with the LED driver
Articles
LED Drivers Meet Power, Space, and Cost Challenges
Trends in LED Backlighting and Drivers
LED Drivers Enable Cost-Effective Topologies
Optimizing LED Drivers for Automotive Lighting
Product Training Modules
IS31FL3246 36-Channel LED Driver - Lumissil
Matrix LED Driver IC Solutions - ISSI
LED Driver Basics - Microchip
Blogs
Driving High-Current LEDs
TechForum
LED Driver FAQ