PMIC - LED Drivers

Image Part Number Description / PDF Quantity Rfq
LT3756IUD#TRPBF

LT3756IUD#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 16QFN

0

LT3590EDC#TRPBF

LT3590EDC#TRPBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 80MA 6DFN

0

MAX8630ZETD18+T

MAX8630ZETD18+T

Analog Devices, Inc.

SWITCHED CAPACITOR REGULATOR, 10

22500

LTC3230EUD#PBF

LTC3230EUD#PBF

Analog Devices, Inc.

IC LED DRIVER RGLTR 25MA 20QFN

0

LT3756EUD#TRPBF

LT3756EUD#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 16QFN

2066

LT8393JFE#PBF

LT8393JFE#PBF

Analog Devices, Inc.

60VIN, 100VOUT SYNC BUCK-BOOST L

0

LT3755EUD-2#PBF

LT3755EUD-2#PBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 16QFN

3062

LT3518HUF#PBF

LT3518HUF#PBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 2.3A 16QFN

106

LT3491ESC8#TRMPBF

LT3491ESC8#TRMPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM SC70-8

909

LT3597IUHG#TRPBF

LT3597IUHG#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 52QFN

0

LT3762EUFD#TRPBF

LT3762EUFD#TRPBF

Analog Devices, Inc.

60V SYNCHRONOUS BOOST LED CONTRO

2500

LT3496IFE#TRPBF

LT3496IFE#TRPBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 1A 28TSSOP

0

LT3599EUH#TRPBF

LT3599EUH#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 32QFN

1934

LT8393HFE#PBF

LT8393HFE#PBF

Analog Devices, Inc.

60VIN, 100VOUT SYNC BUCK-BOOST L

0

LTC3210EUD-1#TRPBF

LTC3210EUD-1#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR 25MA 16QFN

0

ADM8843ACPZ-REEL7

ADM8843ACPZ-REEL7

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 16LFCSP

1743

MAX17139ETL+T

MAX17139ETL+T

Analog Devices, Inc.

MAX17139 LCD DRIVERS DISPLAY PMI

5000

LTC3220IPF-1#PBF

LTC3220IPF-1#PBF

Analog Devices, Inc.

IC LED DRIVER RGLTR 20MA 28UTQFN

2220

LT3756IMSE-1#TRPBF

LT3756IMSE-1#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 16MSOP

0

LT3478IFE#TRPBF

LT3478IFE#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 16TSSOP

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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