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LP8865Y-Q1

現行

具有彈性調光選項和展頻的車用、65-V、2-A 降壓升壓 LED 驅動器

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產品規格表

LP8865Y-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Topology Buck-Boost Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 63 Iout (max) (A) 2 Iq (typ) (mA) 0.8 Switching frequency (max) (kHz) 2200 Features Cycle-by-cycle over-current protection, Fault output, Integrated Switching FET, LED Open Detection, LED Short Detection, Programable Switching Frequency, Spread Spectrum, Thermal Foldback, Thermal shutdown
Number of channels 1 Topology Buck-Boost Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 63 Iout (max) (A) 2 Iq (typ) (mA) 0.8 Switching frequency (max) (kHz) 2200 Features Cycle-by-cycle over-current protection, Fault output, Integrated Switching FET, LED Open Detection, LED Short Detection, Programable Switching Frequency, Spread Spectrum, Thermal Foldback, Thermal shutdown
VSON (DMT) 14 13.5 mm² (4.5 mm × 3 mm)
  • AEC-Q100 Qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Integrated MOSFET for buck, buck-boost and boost topology
    • Wide input voltage: 4.5V to 65V
    • Integrated 2.6A and 150mΩ MOSFET
    • Switching frequency 100kHz to 2.2MHz
    • Spread spectrum for lower EMI
  • High precision power FET dimming
    • Up to 2A output current in buck topology
    • Analog dimming (dimming ratio 256:1)
    • Fast PWM dimming (150ns pulse width)
    • Hybrid and flexible dimming
  • Full protection features:
    • Fault output
    • LED open and short protection
    • Cycle-by-cycle current limit
    • Switching FET failure protection
    • Thermal shutdown
    • Configurable thermal foldback curve
  • AEC-Q100 Qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Integrated MOSFET for buck, buck-boost and boost topology
    • Wide input voltage: 4.5V to 65V
    • Integrated 2.6A and 150mΩ MOSFET
    • Switching frequency 100kHz to 2.2MHz
    • Spread spectrum for lower EMI
  • High precision power FET dimming
    • Up to 2A output current in buck topology
    • Analog dimming (dimming ratio 256:1)
    • Fast PWM dimming (150ns pulse width)
    • Hybrid and flexible dimming
  • Full protection features:
    • Fault output
    • LED open and short protection
    • Cycle-by-cycle current limit
    • Switching FET failure protection
    • Thermal shutdown
    • Configurable thermal foldback curve

The LP8865-Q1 family is a non-synchronous multi-topology option with 4.5V to 65V wide input range. By integrating the low-side NMOS switch, the device is capable of driving LEDs with high power density and high efficiency. The family also supports common cathode connection and single layer PCB design. The switching frequency is configurable from 100kHz to 2.2MHz, with an optional spread spectrum feature for better EMI performance.

The LP8865-Q1 family supports four dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming method can be configured through the PWM and ADIM input pins by means of simple high and low signals. The family adopts an adaptive off-time current mode control along with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve high dimming accuracy.

The LP8865-Q1 family also provides multiple systematic protections, including LED open and short, sense resistor open and short, configurable thermal foldback and thermal shutdown. Fault output sends out acknowledge signals as soon as any fault condition is detected.

The LP8865-Q1 family is a non-synchronous multi-topology option with 4.5V to 65V wide input range. By integrating the low-side NMOS switch, the device is capable of driving LEDs with high power density and high efficiency. The family also supports common cathode connection and single layer PCB design. The switching frequency is configurable from 100kHz to 2.2MHz, with an optional spread spectrum feature for better EMI performance.

The LP8865-Q1 family supports four dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming method can be configured through the PWM and ADIM input pins by means of simple high and low signals. The family adopts an adaptive off-time current mode control along with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve high dimming accuracy.

The LP8865-Q1 family also provides multiple systematic protections, including LED open and short, sense resistor open and short, configurable thermal foldback and thermal shutdown. Fault output sends out acknowledge signals as soon as any fault condition is detected.
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* 資料表 LP8865-Q1 Automotive Multi-Topology LED Driver with Inductive Fast Dimming datasheet (Rev. A) PDF | HTML 2025/8/13

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LP8868YQ1EVM — LP8868Y-Q1 評估模組

LP8868YQ1EVM 可協助設計人員評估針對高電流 LED 驅動器應用設計的 LP8868Y-Q1 非同步降壓升壓切換穩壓器的操作與性能。LP8868Y-Q1 提供 4A 非同步降壓升壓 LED 驅動器功能。該裝置具備 4.5V 到 65V 的寬輸入電壓範圍。元件提供四種調光選項：類比調光、PWM 調光、混合調光及彈性調光。各調光模式皆可透過 PWM 或 EN 以及 ADIM 或 HD 輸入接腳，並透過簡易的高和低訊號配置。這款 EVM 也提供完整的保護功能，包括 LED 開路與短路保護、感測電阻器開路與短路保護、可設定的熱折返以及過熱自動關機。
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