홈 전력 관리 LED 드라이버 백라이트 LED 드라이버
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LM3532

활성

프로그래머블 주변광 감지 기능 및 I2C 호환성을 제공하는 고효율 백색 LED 드라이버

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데이터 시트

LM3532

활성
데이터 시트 지금 주문하기

제품 상세 정보

Number of channels 3 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0 Vout (max) (V) 40 Type Inductive Switching frequency (max) (kHz) 500 Duty cycle (max) (%) 94 LED current per channel (mA) 30 Peak efficiency (%) 89 Topology Boost Features OVP Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 3 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0 Vout (max) (V) 40 Type Inductive Switching frequency (max) (kHz) 500 Duty cycle (max) (%) 94 LED current per channel (mA) 30 Peak efficiency (%) 89 Topology Boost Features OVP Operating temperature range (°C) -40 to 125 Rating Catalog
DSBGA (YFQ) 16 3.24 mm² (— mm × — mm)
  • Drives up to 3 Parallel High-Voltage LED Strings
    at 40 V Each With up to 90% Efficiency
  • 0.4% Typical Current Matching Between Strings
  • 256 Level Logarithmic and Linear Brightness
    Control With 14-Bit Equivalent Dimming
  • I2C-Compatible Interface
  • Direct Read Back of Ambient Light Sensor Via
    8-bit ADC
  • Programmable Dual Ambient Light Sensor Inputs
    With Internal Sensor Gain Selection
  • Dual External PWM Inputs for LED Brightness
    Adjustment
  • Independent Current String Brightness Control
  • Programmable LED Current Ramp Rates
  • 40-V Overvoltage Protection
  • 1-A Typical Current Limit
  • Drives up to 3 Parallel High-Voltage LED Strings
    at 40 V Each With up to 90% Efficiency
  • 0.4% Typical Current Matching Between Strings
  • 256 Level Logarithmic and Linear Brightness
    Control With 14-Bit Equivalent Dimming
  • I2C-Compatible Interface
  • Direct Read Back of Ambient Light Sensor Via
    8-bit ADC
  • Programmable Dual Ambient Light Sensor Inputs
    With Internal Sensor Gain Selection
  • Dual External PWM Inputs for LED Brightness
    Adjustment
  • Independent Current String Brightness Control
  • Programmable LED Current Ramp Rates
  • 40-V Overvoltage Protection
  • 1-A Typical Current Limit

The LM3532 is a 500-kHz fixed frequency asynchronous boost converter which provides the power for 3 high-voltage, low-side current sinks. The device is programmable over an I2C-compatible interface and has independent current control for all three channels. The adaptive current regulation method allows for different LED currents in each current sink thus allowing for a wide variety of backlight and keypad applications.

The main features of the LM3532 include dual ambient light sensor inputs each with 32 internal voltage setting resistors, 8-bit logarithmic and linear brightness control, dual external PWM brightness control inputs, and up to 1000:1 dimming ratio with programmable fade in and fade out settings.

The LM3532 is available in a 16-pin, 0.4-mm pitch thin DSBGA package. The device operates over a 2.7-V to 5.5-V input voltage range and the −40°C to +85°C temperature range.

The LM3532 is a 500-kHz fixed frequency asynchronous boost converter which provides the power for 3 high-voltage, low-side current sinks. The device is programmable over an I2C-compatible interface and has independent current control for all three channels. The adaptive current regulation method allows for different LED currents in each current sink thus allowing for a wide variety of backlight and keypad applications.

The main features of the LM3532 include dual ambient light sensor inputs each with 32 internal voltage setting resistors, 8-bit logarithmic and linear brightness control, dual external PWM brightness control inputs, and up to 1000:1 dimming ratio with programmable fade in and fade out settings.

The LM3532 is available in a 16-pin, 0.4-mm pitch thin DSBGA package. The device operates over a 2.7-V to 5.5-V input voltage range and the −40°C to +85°C temperature range.
filter 기타 백라이트 LED 드라이버 찾기
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기술 자료

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
5개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 LM3532 High-Efficiency White LED Driver With Programmable Ambient Light Sensing Capability and I2C-Compatible Interface datasheet (Rev. E) PDF | HTML 2015. 8. 28
백서 Common LED Functions and LED Driver Design Considerations 2020. 9. 21
선택 가이드 Power Management Guide 2018 (Rev. R) 2018. 6. 25
애플리케이션 노트 Analog PWM Dimming in White-LED Drivers 2016. 12. 21
애플리케이션 노트 Inductor Selection in Boost Converters for LCD Backlight Applications 2016. 10. 24

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

LM3532EVM — LM3532 평가 모듈

The LM3532 Evaluation Board is designed to fully evaluate the LM3532 Triple Output, White LED Driver with I2C-Compatible Interface. For a detailed description of the LM3532 refer to the LM3532 datasheet. The board comes equipped with 3 series strings of 10 white LEDs. Additionally there are two (...)
사용 설명서: PDF
지원되는 제품 및 하드웨어
재고 있음
제한:
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이용할 수 없음
드라이버 또는 라이브러리

LM3532SW-LINUX — LM3532용 Linux 드라이버

The Linux driver supports the LMU(Lighting Management Unit) devices for smartphone handsets. The Linux driver supports communication through the I2C bus and interfaces with various sub-systems.

 

Linux Mainline Status

Available in Linux Main line: No
Available through git.ti.com: (...)

지원되는 제품 및 하드웨어
평가 모듈(EVM)용 GUI

SNVC050 — LM3532 Graphical User Interface

지원되는 제품 및 하드웨어
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
DSBGA (YFQ) 16 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

주문 및 품질

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