| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Fremont Micro Devices |
IC LED DRIVER BUCK BOOST |
4992 |
|
 |
Allegro MicroSystems |
BACKLIGHT DRIVER FOR SMALL/MEDIU |
11346 |
|
 |
ROHM Semiconductor |
IC LED DRIVER CTRLR DIM 28HSOP |
0 |
|
 |
Texas Instruments |
IC LED DRIVER RGLTR DIM 10SON |
0 |
|
 |
LED DRIVER, 3-SEGMENT, PDSO10 |
3495 |
|
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR BACKLIGHT 16SO |
4981 |
|
 |
Analog Devices, Inc. |
IC LED DRIVER RGLTR DIM 10DFN |
0 |
|
 |
LED DRIVER, 5-SEGMENT, PDSO5 |
285 |
|
|
 |
IR (Infineon Technologies) |
IC DGTL FLYBACK CTLR LED DSO-8 |
20291 |
|
 |
Texas Instruments |
IC LED DRIVER OFFL DIM 14TSSOP |
0 |
|
 |
TSC (Taiwan Semiconductor) |
HIGH INTEGRATED DIMMABLE LED CON |
14990 |
|
 |
Maxim Integrated |
LOCAL DIMMING LED BACKLIGHT DRIV |
3430 |
|
 |
Maxim Integrated |
AUTOMOTIVE HIGH-VOLTAGE HB LED C |
7296 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
TRANSISTOR LED DRIVER SOT26 |
32066000 |
|
 |
Texas Instruments |
LP8556TME-E11/NOPB |
500 |
|
 |
IR (Infineon Technologies) |
FLYBACK AND PFC LED CONTROLLER |
0 |
|
 |
MaxLinear |
IC LED DRIVER LINEAR 6TDFN |
0 |
|
 |
Metelics (MACOM Technology Solutions) |
IC 3CH MOBILE PROJECTRO DRCR |
479980 |
|
 |
Power Integrations |
IC LED DRIVER OFFL DIM 8SOIC |
0 |
|
 |
Analog Devices, Inc. |
IC LED DRIVER CTRLR DIM 16QFN |
0 |
|
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