| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRIVER RGLTR DIM TSOT23-5 |
2 |
|
 |
Allegro MicroSystems |
IC LED DRIVER CTRLR DIM 24TSSOP |
3880 |
|
 |
Texas Instruments |
IC LED DRIVER RGLTR DIM 1A 8SO |
25449 |
|
 |
Sanyo Semiconductor/ON Semiconductor |
IC LED DRIVER LINEAR 70MA 8SOIC |
21287 |
|
 |
Analog Devices, Inc. |
IC LED DRIVER RGLTR 25MA 20QFN |
0 |
|
 |
MPS (Monolithic Power Systems) |
IC LED DRIVER |
0 |
|
 |
Roving Networks / Microchip Technology |
IC LED DRIVER LINEAR 20MA TO252 |
1458 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRIVER OFFLINE U-DFN6040- |
33924 |
|
 |
NXP Semiconductors |
IC LED DRIVER LIN DIM 25MA 8SO |
3906 |
|
 |
LED DRIVER, 8-SEGMENT, PDSO16 |
0 |
|
|
 |
Texas Instruments |
TPS61166 WHITE LED DRIVER W/ INT |
3000 |
|
 |
NXP Semiconductors |
ASL5115SHV/0 |
0 |
|
 |
Richtek |
IC LED DRIVER CONTROLLER 14SOP |
0 |
|
 |
Maxim Integrated |
IC LED DRVR LIN DIM 200MA 8SOIC |
0 |
|
 |
Texas Instruments |
IC LED DRVR RGLTR DIM 350MA 6SON |
0 |
|
 |
Analog Devices, Inc. |
IC LED DRVR RGLTR DIM 50MA 56QFN |
0 |
|
 |
Roving Networks / Microchip Technology |
IC LED DRIVER CTRLR DIM 10MSOP |
570 |
|
 |
Analog Devices, Inc. |
IC LED DRIVER CTRLR DIM 16MSOP |
167 |
|
 |
Roving Networks / Microchip Technology |
IC LED DRIVER CTRLR DIM 40QFN |
465 |
|
 |
Sanyo Semiconductor/ON Semiconductor |
IC LED DRIVER 3CH 16SOIC |
9000 |
|
Power Management Integrated Circuits (PMICs) with LED Driver functionality are specialized semiconductor devices designed to regulate and control light-emitting diodes (LEDs) in various applications. These drivers provide precise current control, dimming capabilities, and protection features to ensure optimal LED performance. Their importance in modern technology stems from the widespread adoption of LEDs in energy-efficient lighting, display backlights, and automotive systems due to their compact size, long lifespan, and low power consumption.
| Type | Functional Features | Application Examples |
|---|---|---|
| Constant Current (CC) Drivers | Maintain stable output current regardless of voltage variations | LED street lighting, industrial lighting systems |
| Constant Voltage (CV) Drivers | Regulate output voltage with current limiting protection | LED strips, architectural lighting |
| Multi-channel Drivers | Independent control of multiple LED strings with synchronization | RGB lighting, automotive ambient lighting |
| Dimming-capable Drivers | Support PWM or analog dimming with wide adjustment range | Smartphone displays, TV backlighting |
Typical PMIC LED Driver structure includes: - Semiconductor die with CMOS/Bipolar processes - Power MOSFETs for current regulation - Precision reference voltage circuits - Protection modules (OVP, OCP, OTP) - Control logic for dimming interfaces - Thermal management substrate Packaged in QFN, TSSOP, or WLCSP formats with 16-48 pins depending on channel count and power rating.
| Parameter | Description | Importance |
|---|---|---|
| Input Voltage Range | 4.5V to 40V typical operating range | Determines compatibility with power sources |
| Output Current Accuracy | 2-5% regulation tolerance | Affects LED brightness consistency |
| Dimming Ratio | 1000:1 (PWM) or 20:1 (analog) | Defines brightness control resolution |
| Efficiency | 85-95% typical buck converter efficiency | Impacts thermal performance and battery life |
| Switching Frequency | 200kHz-2MHz adjustable range | Affects EMI and component size |
Major industries utilizing PMIC LED drivers include: - Consumer Electronics: Smartphones, tablets, TVs - Automotive: Headlights, interior lighting, display backlighting - Industrial: Factory automation lighting, emergency lighting - Medical: Surgical lighting, diagnostic equipment displays - Smart Home: IoT-enabled lighting systems
| Manufacturer | Product Family | Key Features |
|---|---|---|
| Texas Instruments | TLC59xx series | 16-channel PWM control, 12-bit brightness adjustment |
| STMicroelectronics | LED81XX series | Automotive-grade, ASIL-B safety compliance |
| ON Semiconductor | Cat4xxx series | Low EMI spread spectrum technology |
| Infineon Technologies | IMC108 series | Integrated power MOSFETs, 3A per channel |
Key selection criteria: - Required output current/voltage specifications - Dimming method compatibility (PWM vs analog) - Number of independent channels needed - Package thermal performance requirements - Protection features (IP rating, fault reporting) - Compliance with industry standards (AEC-Q automotive grade) - Cost vs integration level trade-offs
Emerging trends include: - Integration with wireless control (Bluetooth/Zigbee) - Higher integration with MCU cores on single die - Adaptive dimming using AI algorithms - Increased adoption of GaN transistors for higher efficiency - Miniaturization for wearable device applications - Enhanced thermal management solutions for automotive use cases