PMIC - LED Drivers

Image Part Number Description / PDF Quantity Rfq
PCA9634D,118

PCA9634D,118

NXP Semiconductors

IC LED DRIVER LIN DIM 25MA 20SO

41490

HEF4894BTT-Q100118

HEF4894BTT-Q100118

NXP Semiconductors

LED DRIVER, 12-SEGMENT TSSOP20

870

PCA9552D,118

PCA9552D,118

NXP Semiconductors

IC LED DRIVER LIN DIM 25MA 24SO

1423

PCA9531D,118

PCA9531D,118

NXP Semiconductors

IC LED DRIVER LIN DIM 25MA 16SO

5391

PCA9533D/02,118

PCA9533D/02,118

NXP Semiconductors

IC LED DRIVER LIN DIM 25MA 8SO

0

PCA9632DP1,118

PCA9632DP1,118

NXP Semiconductors

IC LED DRVR LIN DIM 25MA 8TSSOP

17965

PCA9552PW,118

PCA9552PW,118

NXP Semiconductors

IC LED DRVR LIN DIM 25MA 24TSSOP

3043

ASL3416SHNY

ASL3416SHNY

NXP Semiconductors

IC LED BUCK DVR 3CH 32HVQFN

0

PCA9685PW,112

PCA9685PW,112

NXP Semiconductors

IC LED DRVR LIN DIM 25MA 28TSSOP

1876

ASL9115SHNZ

ASL9115SHNZ

NXP Semiconductors

SSL MATRIX CONTROLLER

0

ASL5015FHNZ

ASL5015FHNZ

NXP Semiconductors

SSL MATRIX CONTROLLER

0

SSL5235BTE/1518

SSL5235BTE/1518

NXP Semiconductors

5 OHM/550 V MAINS

0

ASL9015SHNZ

ASL9015SHNZ

NXP Semiconductors

SSL MATRIX CONTROLLER

0

ASL5015SHNZ

ASL5015SHNZ

NXP Semiconductors

SSL MATRIX CONTROLLER

0

PCU9655PW1,518

PCU9655PW1,518

NXP Semiconductors

IC LED DRIVER LINEAR DIM 28TSSOP

0

PCA9685PW,118

PCA9685PW,118

NXP Semiconductors

IC LED DRVR LIN DIM 25MA 28TSSOP

0

ASL5108FHNZ

ASL5108FHNZ

NXP Semiconductors

SSL MATRIX CONTROLLER

0

PCA9635PW,118

PCA9635PW,118

NXP Semiconductors

IC LED DRVR LIN DIM 25MA 28TSSOP

0

ASL5108SHNZ

ASL5108SHNZ

NXP Semiconductors

SSL MATRIX CONTROLLER

0

ASL1507SHNY

ASL1507SHNY

NXP Semiconductors

BOOST CONVERTER + FSO

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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