| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
ROHM Semiconductor |
1CH BUCK TYPE (QUASI-RESONANT CO |
394 |
|
 |
ROHM Semiconductor |
IC LED DRIVER CTRLR DIM 28HTSSOP |
2091 |
|
 |
ROHM Semiconductor |
IC LED DRIVER REGULATOR 36VQFN |
0 |
|
 |
ROHM Semiconductor |
LED DRIVER WITH BUILT-IN PWM SIG |
0 |
|
 |
ROHM Semiconductor |
PWR MGMT LINEAR REGULATOR |
2396 |
|
 |
ROHM Semiconductor |
IC LED DVR ELECTROLYT CAP 14SSOP |
2500 |
|
 |
ROHM Semiconductor |
IC LED DRIVER RGLTR 270MA 62VCSP |
0 |
|
 |
ROHM Semiconductor |
THE BD18336NUF-M IS A CONSTANT C |
3000 |
|
 |
ROHM Semiconductor |
IC LED DRIVER RGLTR 32MA 63BGA |
0 |
|
 |
ROHM Semiconductor |
IC LED DRVR RGLTR DIM 31MA 62CSP |
0 |
|
 |
ROHM Semiconductor |
STEP-UP DC/DC CONVERTER FOR MEDI |
173 |
|
 |
ROHM Semiconductor |
IC LED DRVR |
5790 |
|
 |
ROHM Semiconductor |
IC LED DRVR RGLTR DIM 35MA 8HSON |
1451 |
|
 |
ROHM Semiconductor |
IC LED DRIVER LINEAR 50MA 25HSOP |
1507 |
|
 |
ROHM Semiconductor |
IC LED DRVR RGLTR 270MA VCSP60N1 |
5705 |
|
 |
ROHM Semiconductor |
IC LED DRIVER LINEAR 20MA 20SSOP |
3 |
|
 |
ROHM Semiconductor |
IC LED DRIVER RGLTR DIM 16SQFN |
3543 |
|
 |
ROHM Semiconductor |
IC LED DRIVER LIN DIM 32MA 8HSON |
2607 |
|
 |
ROHM Semiconductor |
8CH LED DRIVER IC WITH 3-LINE SE |
2500 |
|
 |
ROHM Semiconductor |
IC LED DRIVER RGLTR 20MA 20VQFN |
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