| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRIVER OFFL 300MA 8SOIC |
20000 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR RGLTR DIM 750MA 6DFN |
21179000 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
LED LINEAR DRIVER,TO252,T&R,2.5K |
968 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR LIN PWM 15MA PDI12 |
36639 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
LED OFFLINE DRIVER SO-7 |
32000 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRIVER CTRLR 50MA 16QFN |
4243 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR LIN PWM 40MA PDI12 |
1158 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR LIN PWM 120MA PDI12 |
85821000 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
LED LINEAR DRIVER SOT25 T&R 3K |
1180 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED LINEAR DRIVER 14UDFN |
2097 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR LIN PDI123 |
0 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
LED MV INT SWITCH MSOP-8EP |
0 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
LED OFFLINE DRIVER 8-SO |
3990 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR LIN PWM 50MA SOD123 |
3513 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR OFFL TRIAC 2A 7S0 |
0 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED MV INT SWITCH SO-8EP |
4561 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
LED BACKLIGHT LAPTOP/TV SO-16 |
0 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED DRVR LIN PWM 100MA PDI123 |
0 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
IC LED OFFLINE DRIVER SO-7 |
0 |
|
 |
Zetex Semiconductors (Diodes Inc.) |
LED OFFLINE DRIVER SO-8 |
32000 |
|
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