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LP8872-Q1

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具有 6 个 150mA 通道的汽车级显示 LED 背光驱动器

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数据表

LP8872-Q1

正在供货
数据表 立即订购

产品详情

Number of channels 6 Topology Boost with Current Sink, SEPIC Controller Rating Automotive Operating temperature range (°C) to Vin (min) (V) 3 Vin (max) (V) 48 Vout (min) (V) 0 Vout (max) (V) 48 Iout (max) (A) 0.9 Iq (typ) (mA) 7 Switching frequency (max) (kHz) 2200 Features Adjustable Switch Frequency, Boost Sync, Current Derating, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal shutdown
Number of channels 6 Topology Boost with Current Sink, SEPIC Controller Rating Automotive Operating temperature range (°C) to Vin (min) (V) 3 Vin (max) (V) 48 Vout (min) (V) 0 Vout (max) (V) 48 Iout (max) (A) 0.9 Iq (typ) (mA) 7 Switching frequency (max) (kHz) 2200 Features Adjustable Switch Frequency, Boost Sync, Current Derating, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal shutdown
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
  • Input voltage operating range 3V to 48V
  • Six high-precision current sinks
    • Up to 150mA DC current for each channel
    • Current matching 1% (typical)
    • High dimming ratio 32 000:1 using 152Hz LED output PWM frequency
    • Up to 16-bit LED PWM dimming resolution with I2C, or PWM input
    • Support independent PWM dimming control for each channel
  • Auto-phase shift PWM dimming and direct PWM dimming
  • Hybrid dimming and 12-bit analog dimming
  • Up to 48V VOUT boost or SEPIC DC/DC converter
    • Integrated 5.4A switching FET
    • Support boost/sepic operation
    • Higher efficiency with 60mΩ RDSON and fast switching
    • Boost selectable dual random spread spectrum for reduced EMI
    • Adjustable soft start of converter
    • Boost sync input to set boost switching frequency from an external clock
    • Output voltage automatically discharged when boost is disabled
  • Extensive fault detection and protection
    • Up to 1MHz I2C control interface with CRC check
    • Bit-integrity (CRC) error detection on internal configuration registers and non-volatile memory (NVM)
    • Input voltage OVP, UVLO and OCP
    • Boost overcurrent and overvoltage protection
    • LED open, short and short to ground fault detection
    • Thermal warning and thermal shutdown
  • Small solution size and low cost
    • Dynamically programmable wide switching frequency from 100kHz to 2.2MHz
    • Available in 4mm × 4mm HotRod™ QFN package with wettable flank
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
  • Input voltage operating range 3V to 48V
  • Six high-precision current sinks
    • Up to 150mA DC current for each channel
    • Current matching 1% (typical)
    • High dimming ratio 32 000:1 using 152Hz LED output PWM frequency
    • Up to 16-bit LED PWM dimming resolution with I2C, or PWM input
    • Support independent PWM dimming control for each channel
  • Auto-phase shift PWM dimming and direct PWM dimming
  • Hybrid dimming and 12-bit analog dimming
  • Up to 48V VOUT boost or SEPIC DC/DC converter
    • Integrated 5.4A switching FET
    • Support boost/sepic operation
    • Higher efficiency with 60mΩ RDSON and fast switching
    • Boost selectable dual random spread spectrum for reduced EMI
    • Adjustable soft start of converter
    • Boost sync input to set boost switching frequency from an external clock
    • Output voltage automatically discharged when boost is disabled
  • Extensive fault detection and protection
    • Up to 1MHz I2C control interface with CRC check
    • Bit-integrity (CRC) error detection on internal configuration registers and non-volatile memory (NVM)
    • Input voltage OVP, UVLO and OCP
    • Boost overcurrent and overvoltage protection
    • LED open, short and short to ground fault detection
    • Thermal warning and thermal shutdown
  • Small solution size and low cost
    • Dynamically programmable wide switching frequency from 100kHz to 2.2MHz
    • Available in 4mm × 4mm HotRod™ QFN package with wettable flank

The LP8872-Q1 is an automotive high-efficiency, low-EMI and easy-to-use LED driver with integrated DC-DC power switch. The DC-DC converter supports both boost and SEPIC topology configuration. The six high-precision current sinks support PWM phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.

The boost converter has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions.

The LP8872-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

The LP8872-Q1 is an automotive high-efficiency, low-EMI and easy-to-use LED driver with integrated DC-DC power switch. The DC-DC converter supports both boost and SEPIC topology configuration. The six high-precision current sinks support PWM phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.

The boost converter has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions.

The LP8872-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.
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* 数据表 LP8872-Q1 Automotive Display LED-Backlight Driver with Six 150 mA Channels 数据表 PDF | HTML 2025年 7月 21日

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评估板

LP8870Q1EVM — LP8870-Q1 评估模块

德州仪器 (TI) LP8870-Q1 评估模块 (EVM) 可帮助设计人员评估 LP8870-Q1 器件的运行情况和性能。本文档包括 LP8870Q1EVM 的硬件设置说明、软件说明、完整的原理图、印刷电路板 (PCB) 布局和物料清单 (BOM)。

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LP887X-LP889X-DESIGN — Design resources for LP887x/LP889x family

Design resources for LP887x/LP889x family
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产品
汽车 LED 驱动器
LP8872-Q1 — 具有 6 个 150mA 通道的汽车级显示 LED 背光驱动器 LP8873-Q1 — 具有 4 个 150mA 通道的汽车显示 LED 背光驱动器
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LP8870Q1EVM — LP8870-Q1 评估模块
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