PMIC - LED Drivers

Image Part Number Description / PDF Quantity Rfq
LT3475IFE#PBF

LT3475IFE#PBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 20TSSOP

85

MAX16809ATU+

MAX16809ATU+

Analog Devices, Inc.

INTEGRATED 16-CHANNEL LED DRIVER

1303

LTC3207EUF#TRPBF

LTC3207EUF#TRPBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 50MA 24QFN

0

LT3743EUFD#TRPBF

LT3743EUFD#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 28QFN

1748

LTC3201EMS#TRPBF

LTC3201EMS#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR 100MA 10MSOP

0

LTC3490ES8#TRPBF

LTC3490ES8#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 8SOIC

0

LT3496EFE#TRPBF

LT3496EFE#TRPBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 1A 28TSSOP

0

LT3799IMSE-1#PBF

LT3799IMSE-1#PBF

Analog Devices, Inc.

IC LED DRIVER OFFL DIM 16MSOP

0

ADM8845ACP-REEL7

ADM8845ACP-REEL7

Analog Devices, Inc.

CHARGE-PUMP DRIVER FOR LCD LED

2553

LT3597IUHG#PBF

LT3597IUHG#PBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 52QFN

0

LTC3783EFE#TRPBF

LTC3783EFE#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 16TSSOP

2155

LT3598IFE#PBF

LT3598IFE#PBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 24TSSOP

700

LT3909EMSE#TRPBF

LT3909EMSE#TRPBF

Analog Devices, Inc.

IC LED DRIVER

0

LT3932IUFD-1#TRPBF

LT3932IUFD-1#TRPBF

Analog Devices, Inc.

40V, 2A MONOLITHIC SYNCHRONOUS S

0

LT3491EDC#TRMPBF

LT3491EDC#TRMPBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 260MA 6DFN

337

LT3756JMSE-2#TRPBF

LT3756JMSE-2#TRPBF

Analog Devices, Inc.

100VIN, 100VOUT LED CNTR

0

MAX17127ETP+

MAX17127ETP+

Analog Devices, Inc.

LED DRIVER

4050

LT3517HUF#TRPBF

LT3517HUF#TRPBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 1.5A 16QFN

0

LT3756JMSE-2#WPBF

LT3756JMSE-2#WPBF

Analog Devices, Inc.

100VIN, 100VOUT LED CNTR

115

LT8393JUFDM#TRPBF

LT8393JUFDM#TRPBF

Analog Devices, Inc.

60VIN, 100VOUT SYNC BUCK-BOOST L

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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