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汽車 LED 驅動器

TPS61194-Q1

現行

適用於汽車照明的低 EMI、高效能 4 通道 LED 驅動器

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產品規格表

TPS61194-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 4 Topology Boost with Current Sink, SEPIC Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) 6 Vout (max) (V) 40 Iout (max) (A) 0.4 Iq (typ) (mA) 5 Switching frequency (max) (kHz) 2200 Features Boost Sync, Global dimming, Spread Spectrum
Number of channels 4 Topology Boost with Current Sink, SEPIC Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) 6 Vout (max) (V) 40 Iout (max) (A) 0.4 Iq (typ) (mA) 5 Switching frequency (max) (kHz) 2200 Features Boost Sync, Global dimming, Spread Spectrum
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
  • Input Voltage Operating Range 4.5 V to 40 V
  • Four High-Precision Current Sinks
    • Current Matching 1% (Typical)
    • LED String Current up to 100 mA per Channel
    • Outputs can be Combined Externally for Higher Current per String
  • High Dimming Ratio of 10 000:1 at 100 Hz
  • Integrated Boost/SEPIC Converter for LED String Power
    • Output Voltage up to 45 V
    • Switching Frequency 300 kHz to 2.2 MHz
    • Switching Synchronization Input
    • Spread Spectrum for Lower EMI
  • Extensive Fault Detection Features
    • Fault Output
    • Input Voltage OVP and UVLO
    • Open and Shorted LED Fault Detection
    • Thermal Shutdown
  • Minimum Number of External Components
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
  • Input Voltage Operating Range 4.5 V to 40 V
  • Four High-Precision Current Sinks
    • Current Matching 1% (Typical)
    • LED String Current up to 100 mA per Channel
    • Outputs can be Combined Externally for Higher Current per String
  • High Dimming Ratio of 10 000:1 at 100 Hz
  • Integrated Boost/SEPIC Converter for LED String Power
    • Output Voltage up to 45 V
    • Switching Frequency 300 kHz to 2.2 MHz
    • Switching Synchronization Input
    • Spread Spectrum for Lower EMI
  • Extensive Fault Detection Features
    • Fault Output
    • Input Voltage OVP and UVLO
    • Open and Shorted LED Fault Detection
    • Thermal Shutdown
  • Minimum Number of External Components

The TPS61194-Q1 is an automotive high-efficiency, low-EMI, easy-to-use LED driver with integrated DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four high-precision current sinks that can be combined for higher current capability.

The DC-DC converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the TPS61194-Q1 to avoid disturbance for AM radio band.

The input voltage range for the TPS61194-Q1 is from 4.5 V to 40 V to support automotive stop/start and load dump condition. The TPS61194-Q1 integrates extensive fault detection features.

The TPS61194-Q1 is an automotive high-efficiency, low-EMI, easy-to-use LED driver with integrated DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four high-precision current sinks that can be combined for higher current capability.

The DC-DC converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the TPS61194-Q1 to avoid disturbance for AM radio band.

The input voltage range for the TPS61194-Q1 is from 4.5 V to 40 V to support automotive stop/start and load dump condition. The TPS61194-Q1 integrates extensive fault detection features.
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類型 標題 日期
* Data sheet TPS61194-Q1 Low-EMI Automotive LED Driver With Four 100-mA Channels datasheet (Rev. D) PDF | HTML 2017年 6月 9日
Application note Some Guidelines and Tips for the LED Driver Application 2019年 8月 14日
White paper Powering automotive displays to create interactive driving experiences 2017年 12月 21日
Application note PCB Layout Guideline for Automotive LED Drivers 2017年 4月 7日
EVM User's guide Using the TPS61194xEVM Evaluation Module 2016年 1月 5日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS61194Q1EVM — 適用於汽車照明的 TPS61194-Q1 4 通道 LED 驅動器評估模組

TPS61194Q1EVM 評估模組 (EVM) 可協助設計人員評估此裝置的運作和性能。  TPS61194Q1EVM 採用 TPS61194-Q1 驅動晶片，可高效驅動最多 4 組 LED 燈串（每組最多 12 顆 LED，共計 36 顆 LED），適用於 LCD 背光應用。  TPS61194Q1EVM 的輸出電壓與電流額定值相關資訊，亦可參閱 TPS61194-Q1 產品規格表。  電池的電源供應連接與各訊號測試點，均配置於該評估板上。  LED 亮度可透過外部 PWM 訊號控制。  可單獨使用 LED 板作為負載，或將 LCD 板連接至輸出連接器。

使用指南: PDF
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模擬型號

TPS61194 Boost and SEPIC Unencrypted PSpice Transient Model Package (Rev. B)

SNVMAZ4B.ZIP (185 KB) - PSpice Model
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