PMIC - LED Drivers

Image Part Number Description / PDF Quantity Rfq
BCR420UE6433HTMA1

BCR420UE6433HTMA1

IR (Infineon Technologies)

IC LED DRIVER LINEAR 65MA SC74-6

10000

MAX20446BATG/V+

MAX20446BATG/V+

Maxim Integrated

6CH LED DRIVER WITH HYBRID DIMMI

11251800

TLC5971RGER

TLC5971RGER

Texas Instruments

IC LED DRIVER LINEAR 60MA 24VQFN

4203

LM3431AQMH/NOPB

LM3431AQMH/NOPB

Texas Instruments

IC LED DRIVER CTRLR DIM 28HTSSOP

0

LM3463SQX/NOPB

LM3463SQX/NOPB

Texas Instruments

LM3463 6-CHANNEL HIGH VOLTAGE, C

5000

TC62D902FG,C,8,EL

TC62D902FG,C,8,EL

Toshiba Electronic Devices and Storage Corporation

IC CNTRLR ISOLATED 8SOP

0

LTC3207EUF#TRPBF

LTC3207EUF#TRPBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 50MA 24QFN

0

MAX8901BETA+T

MAX8901BETA+T

Maxim Integrated

IC LED DRIVER RGLTR DIM 8TDFN

0

BD1601MUV-E2

BD1601MUV-E2

ROHM Semiconductor

IC LED DRIVER RGLTR 30MA 16VQFN

0

MAX16821BATI+

MAX16821BATI+

Maxim Integrated

IC LED DRVR CTRLR DIM 30A 28TQFN

2298

LT3743EUFD#TRPBF

LT3743EUFD#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 28QFN

1748

BD18341FV-ME2

BD18341FV-ME2

ROHM Semiconductor

PWR MGMT LINEAR REGULATOR

2480

TPS61165DRVT

TPS61165DRVT

Texas Instruments

IC LED DRVR RGLTR DIM 1.2A 6SON

2760

STP16CPPS05MTR

STP16CPPS05MTR

STMicroelectronics

IC LED DRIVER LINEAR 40MA 24SO

0

NJU6048F-TE1

NJU6048F-TE1

New Japan Radio (NJR)

IC LED DRIVER RGLTR DIM SOT23-5

3775

TLC5948APWP

TLC5948APWP

Texas Instruments

IC LED DRIVER LIN 60MA 24HTSSOP

0

STP16DPPS05TTR

STP16DPPS05TTR

STMicroelectronics

IC LED DRIVER LIN 40MA 24TSSOP

0

LP8545SQ/NOPB

LP8545SQ/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 24WQFN

981

LP8543SQ/NOPB

LP8543SQ/NOPB

Texas Instruments

IC LED DRIVER RGLTR DIM 24WQFN

0

STP16CL596MTR

STP16CL596MTR

STMicroelectronics

IC LED DRIVER LINEAR 90MA 24SO

71

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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