PMIC - LED Drivers

Image Part Number Description / PDF Quantity Rfq
TLC5924RHBR

TLC5924RHBR

Texas Instruments

IC LED DRIVER LINEAR 80MA 32VQFN

0

LM3555TLE/NOPB

LM3555TLE/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 12DSBGA

2020

TPS61150DRCR

TPS61150DRCR

Texas Instruments

IC LED DRIVER RGLTR DIM 10VSON

943

TPS92512HVDGQR

TPS92512HVDGQR

Texas Instruments

IC LED DRIVER RGLTR DIM 10MSOP

0

TLC5946RHBT

TLC5946RHBT

Texas Instruments

IC LED DRIVER LINEAR 40MA 32VQFN

330

LM3424QMHX/NOPB

LM3424QMHX/NOPB

Texas Instruments

IC LED DRIVER CTRLR DIM 20HTSSOP

148110000

TPS61060YZFT

TPS61060YZFT

Texas Instruments

TPS61060 15V, 400MA SWITCH, 1MHZ

121500

LP5521YQ/NOPB

LP5521YQ/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 24WQFN

25067

LP5560TME/NOPB

LP5560TME/NOPB

Texas Instruments

IC LED DRIVER LINEAR DIM 4DSBGA

3564

TLC5946PWPR

TLC5946PWPR

Texas Instruments

IC LED DRIVER LIN 40MA 28HTSSOP

606

TPS92692QPWPRQ1

TPS92692QPWPRQ1

Texas Instruments

IC LED CONTROLLER DIM 20HTSSOP TPS92692QPWPRQ1

30000

TLC5957RTQT

TLC5957RTQT

Texas Instruments

TLC5957 48-CHANNEL, 16BIT ES-PWM

2264

TLC59282RGER

TLC59282RGER

Texas Instruments

IC LED DRIVER LINEAR 45MA 24VQFN

0

TLC5960DA

TLC5960DA

Texas Instruments

TLC5960 8-CHANNEL LED DRIVER CON

6772

TLC5924RHBT

TLC5924RHBT

Texas Instruments

IC LED DRIVER LINEAR 80MA 32VQFN

198

TPS92691PWPR

TPS92691PWPR

Texas Instruments

IC LED DRIVER

2294

LM3402MRX/NOPB

LM3402MRX/NOPB

Texas Instruments

IC LED DRVR RGLTR DIM 500MA 8SO

5325

LM3502ITL-44/NOPB

LM3502ITL-44/NOPB

Texas Instruments

LED DRIVER

0

TLC59281DBQ

TLC59281DBQ

Texas Instruments

IC LED DRIVER LINEAR 35MA 24SSOP

217

TPS61150ADRCTG4

TPS61150ADRCTG4

Texas Instruments

IC LED DRIVER RGLTR DIM 10VSON

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

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