PMIC - LED Drivers

Image Part Number Description / PDF Quantity Rfq
LT3756IMSE-1#PBF

LT3756IMSE-1#PBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 16MSOP

114

LTC3209EUF-2#TRPBF

LTC3209EUF-2#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 20QFN

0

LT3466EDD#TRPBF

LT3466EDD#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 10DFN

3500

LT3791EFE#TRPBF

LT3791EFE#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 38TSSOP

0

LT3478IFE-1#TRPBF

LT3478IFE-1#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 16TSSOP

0

LT3796IFE-1#TRPBF

LT3796IFE-1#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 28TSSOP

0

MAX6952EPL

MAX6952EPL

Analog Devices, Inc.

5 X 7 MATRIX LED DISPLAY DRIVER

117

LT3744EUHE#PBF

LT3744EUHE#PBF

Analog Devices, Inc.

IC LED DVR SYNC STEP DOWN 36QFN

0

LT3760EFE#PBF

LT3760EFE#PBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 28TSSOP

934

LT3967EFE#PBF

LT3967EFE#PBF

Analog Devices, Inc.

1.3A 8-SWITCH MTRX LED DIMMER W/

50

LT3486IFE#PBF

LT3486IFE#PBF

Analog Devices, Inc.

IC LED DRIVER RGLTR DIM 16TSSOP

55

LT3756EMSE#PBF

LT3756EMSE#PBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 16MSOP

178

LT3593ES6#TRMPBF

LT3593ES6#TRMPBF

Analog Devices, Inc.

IC LED DRVR RGLTR 45MA TSOT23-6

1734

ADP8140ACPZ-1-R7

ADP8140ACPZ-1-R7

Analog Devices, Inc.

IC LED DVR 4CH IND 16LFCSP

1478

LT3592EMSE#TRPBF

LT3592EMSE#TRPBF

Analog Devices, Inc.

IC LED DRIVER RGLTR 50MA 10MSOP

35

LT3755JMSE-2#PBF

LT3755JMSE-2#PBF

Analog Devices, Inc.

40VIN, 75VOUT LED CNTRS

78

LT3942EUFD#PBF

LT3942EUFD#PBF

Analog Devices, Inc.

36V, 2A SYNCHRONOUS BUCK-BOOST C

150

LT3956IUHE#PBF

LT3956IUHE#PBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 3.3A 36QFN

183

LT3498EDDB#TRPBF

LT3498EDDB#TRPBF

Analog Devices, Inc.

IC LED DRVR RGLTR DIM 20MA 12DFN

0

LT3760IFE#TRPBF

LT3760IFE#TRPBF

Analog Devices, Inc.

IC LED DRIVER CTRLR DIM 28TSSOP

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

RFQ BOM Call Skype Email
Top