| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
ROHM Semiconductor |
CONSTANT CURRENT CONTROLLER FOR |
2426 |
|
|
ROHM Semiconductor |
BD18337EFV-M ARE 40V-WITHSTANDIN |
0 |
|
|
ROHM Semiconductor |
IC PWR SUPPLY CCD CAMERA VCSP |
0 |
|
|
ROHM Semiconductor |
IC LED DRIVER RGLTR DIM VCSP50L3 |
0 |
|
|
ROHM Semiconductor |
IC PWR SUPPLY CCD CAMERA VCSP |
0 |
|
|
ROHM Semiconductor |
8CH LED DRIVER IC FOR AUTOMOTIVE |
2460 |
|
|
ROHM Semiconductor |
IC LED DRIVER |
0 |
|
|
ROHM Semiconductor |
6CH WHITE LED DRIVER BUILT-IN CU |
1952 |
|
|
ROHM Semiconductor |
BD18342FV-M IS 70V-WITHSTANDING |
2500 |
|
|
ROHM Semiconductor |
IC PWR SUPPLY CCD CAMERA 40VCSP |
0 |
|
 |
ROHM Semiconductor |
IC LED DRIVER RGLTR DIM 28HSOP |
0 |
|
 |
ROHM Semiconductor |
IC LED DRIVER OFFLINE 1A 11SIP |
0 |
|
 |
ROHM Semiconductor |
IC LED DRVR OFFLINE 360MA 16SIP |
0 |
|
 |
ROHM Semiconductor |
IC WHITE LED DRIVER 16DIP |
0 |
|
 |
ROHM Semiconductor |
IC LED DRVR OFFLINE 350MA 11SIP |
0 |
|
 |
ROHM Semiconductor |
IC LED DRIVER SQFP |
0 |
|
|
ROHM Semiconductor |
IC XENON TUBE DVR CELL VCSP |
0 |
|
|
ROHM Semiconductor |
IC WHITE LED DRIVER 16DIP |
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