PMIC - LED Drivers

Image Part Number Description / PDF Quantity Rfq
LM3639AYFQT

LM3639AYFQT

Texas Instruments

IC LED DRIVER RGLTR DIM 20DSBGA

750

TLC5947DAPRG4

TLC5947DAPRG4

Texas Instruments

IC LED DRIVER LINEAR 32HTSSOP

0

TLC5924DAPRG4

TLC5924DAPRG4

Texas Instruments

LED DRIVER, 16-SEGMENT, PDSO32

604

LM3503ITL-44/NOPB

LM3503ITL-44/NOPB

Texas Instruments

LED DRIVER, 2-SEGMENT, PBGA10

2250

TLC5925IDWRG4

TLC5925IDWRG4

Texas Instruments

IC LED DRIVER LINEAR 45MA 24SOIC

0

LP8555YFQR

LP8555YFQR

Texas Instruments

IC LED DRIVER RGLTR DIM 36DSBGA

3000

TPS75105YFFT

TPS75105YFFT

Texas Instruments

IC LED DRVR LIN DIM 25MA 9DSBGA

475

LM3410YMY/NOPB

LM3410YMY/NOPB

Texas Instruments

IC LED DRVR RGLTR DIM 2.8A 8MSOP

425

LM3405AXMKE/NOPB

LM3405AXMKE/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM TSOT23-6

621

TPS61052DRCR

TPS61052DRCR

Texas Instruments

TPS61052 1.2A HIGH POWER WHITE L

57000

TLC5922DAPR

TLC5922DAPR

Texas Instruments

IC LED DRIVER LIN 80MA 32HTSSOP

2041

TLC5921DAPG4

TLC5921DAPG4

Texas Instruments

IC LED DRIVER LIN 80MA 32HTSSOP

0

LM3464MH/NOPB

LM3464MH/NOPB

Texas Instruments

IC LED DRIVER CTRLR DIM 28HTSSOP

117

TLC5970RHPR

TLC5970RHPR

Texas Instruments

IC LED DRIVER RGLTR 150MA 28VQFN

0

LP5521YQX/NOPB

LP5521YQX/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 24WQFN

3365

TLC5917IPW

TLC5917IPW

Texas Instruments

IC LED DRIVER LIN 120MA 16TSSOP

324

TPS61141DRCRG4

TPS61141DRCRG4

Texas Instruments

IC LED DRIVER RGLTR DIM 10VSON

0

LM27965SQX/NOPB

LM27965SQX/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 24WQFN

0

LP5524TMX-5/NOPB

LP5524TMX-5/NOPB

Texas Instruments

IC LED DRIVER LIN DIM 25MA 9USMD

430

TPS92075DDCR/NOPB

TPS92075DDCR/NOPB

Texas Instruments

TPS92075 NON-ISOLATED, PHASE DIM

27000

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

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