PMIC - LED Drivers

Image Part Number Description / PDF Quantity Rfq
LED171596ARSLR

LED171596ARSLR

Texas Instruments

LED MATRIX DRIVER

0

LP3950SLX/NOPB

LP3950SLX/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 32TCSP

0

LM2795BLX/NOPB

LM2795BLX/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 14DSBGA

0

LP3933SL/NOPB

LP3933SL/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 32TCSP

0

LM3402HVMMX

LM3402HVMMX

Texas Instruments

IC LED DRIVER RGLTR DIM 8VSSOP

0

LM3430SDX

LM3430SDX

Texas Instruments

IC LED DRIVER CTRLR DIM 12WSON

0

LM3500TL-16/NOPB

LM3500TL-16/NOPB

Texas Instruments

IC LED DRIVER RGLTR 400MA 8USMD

0

TLC5948DBQ

TLC5948DBQ

Texas Instruments

IC LED DRIVER LINEAR 60MA 24SSOP

0

TLC5948PWP

TLC5948PWP

Texas Instruments

IC LED DRIVER LIN 60MA 24HTSSOP

0

LM3502ITLX-35/NOPB

LM3502ITLX-35/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 10DSBGA

0

LP3933SLX

LP3933SLX

Texas Instruments

IC LED DRIVER RGLTR DIM 32TCSP

0

LP3954RLX/NOPB

LP3954RLX/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 36DSBGA

0

LM2795TL

LM2795TL

Texas Instruments

IC LED DRIVER RGLTR DIM 14DSBGA

0

LM3503SQX-35/NOPB

LM3503SQX-35/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 16WQFN

0

LM3502ITLX-44/NOPB

LM3502ITLX-44/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 10DSBGA

0

TPS61055YZGT

TPS61055YZGT

Texas Instruments

IC LED DRIVER RGLTR DIM 12DSBGA

0

LP8543SQE

LP8543SQE

Texas Instruments

IC LED DRIVER RGLTR DIM 24WQFN

0

LM2792LDX-L/NOPB

LM2792LDX-L/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 10WSON

0

LM27953TLX/NOPB

LM27953TLX/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 18TUSMD

0

LM3503ITLX-25/NOPB

LM3503ITLX-25/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 10DSBGA

0

PMIC - LED Drivers

1. Overview

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.

2. Main Types and Functional Classification

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

3. Structure and Components

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.

4. Key Technical Specifications

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

5. Application Areas

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

6. Leading Manufacturers and Products

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

7. Selection Guidelines

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

8. Industry Trends

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

RFQ BOM Call Skype Email
Top