홈 전력 관리 LED 드라이버 백라이트 LED 드라이버
홈
전력 관리
LED 드라이버
백라이트 LED 드라이버

TPS61199

활성

LCD 모니터 백라이팅용 흰색 LED 드라이버

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데이터 시트

TPS61199

활성
데이터 시트 지금 주문하기

제품 상세 정보

Number of channels 8 Vin (min) (V) 8 Vin (max) (V) 30 Vout (min) (V) 8 Vout (max) (V) 60 Type Inductive Switching frequency (max) (kHz) 800 Duty cycle (max) (%) 94 LED current per channel (mA) 70 Peak efficiency (%) 95 Topology Boost Features Adjustable Switch Frequency, Enable/Shutdown, OVP, PWM control, Thermal shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 8 Vin (min) (V) 8 Vin (max) (V) 30 Vout (min) (V) 8 Vout (max) (V) 60 Type Inductive Switching frequency (max) (kHz) 800 Duty cycle (max) (%) 94 LED current per channel (mA) 70 Peak efficiency (%) 95 Topology Boost Features Adjustable Switch Frequency, Enable/Shutdown, OVP, PWM control, Thermal shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
HTSSOP (PWP) 20 41.6 mm² (6.5 mm × 6.4 mm) SOP (NS) 20 98.28 mm² (12.6 mm × 7.8 mm)
  • 8-V to 30-V Input Voltage
  • Integrated High-Power Boost Controller
  • Adaptive Boost Output for LED Voltages
  • Drive up to Eight LED Strings in Parallel
  • Maximum 70 mA for Each LED String
  • 3% Current Matching Between Strings
  • 5000:1 PWM Dimming Ratio at 200 Hz
  • MOSFET Overcurrent Protection
  • Programmable LED Short Protection
  • Adjustable LED Open Protection
  • Thermal Shutdown Protection
  • 20-Pin SO Package and TSSOP Package
    With PowerPAD™
  • 8-V to 30-V Input Voltage
  • Integrated High-Power Boost Controller
  • Adaptive Boost Output for LED Voltages
  • Drive up to Eight LED Strings in Parallel
  • Maximum 70 mA for Each LED String
  • 3% Current Matching Between Strings
  • 5000:1 PWM Dimming Ratio at 200 Hz
  • MOSFET Overcurrent Protection
  • Programmable LED Short Protection
  • Adjustable LED Open Protection
  • Thermal Shutdown Protection
  • 20-Pin SO Package and TSSOP Package
    With PowerPAD™

The TPS61199 provides highly integrated solutions for large size LCD backlighting. This device integrates a current-mode boost controller and eight current sinks for driving up to eight LED strings with multiple LEDs in series. Each string has an independent current regulator with current matching between strings reaching 3% regulation accuracy. The device automatically adjusts the output voltage of the boost converter to provide only the voltage required by the LED string with the largest forward voltage drop plus the minimum required voltage at the IFBx pin of that string, thereby optimizing efficiency of the driver.

The TPS61199 provides PWM brightness dimming with an external PWM signal. The signal of the PWM maximum frequency can be as high as 22 kHz. Dimming ratios up to 5000:1 can be achieved with a 200-Hz PWM signal. The TPS61199 integrates overcurrent protection for the switch FET, soft start-up, LED short protection, LED open protection, and overtemperature shutdown protection. The TPS61199 device is available in 20-pin SO and HTSSOP packages.

For all available packages, see the orderable addendum at the end of the data sheet.

The TPS61199 provides highly integrated solutions for large size LCD backlighting. This device integrates a current-mode boost controller and eight current sinks for driving up to eight LED strings with multiple LEDs in series. Each string has an independent current regulator with current matching between strings reaching 3% regulation accuracy. The device automatically adjusts the output voltage of the boost converter to provide only the voltage required by the LED string with the largest forward voltage drop plus the minimum required voltage at the IFBx pin of that string, thereby optimizing efficiency of the driver.

The TPS61199 provides PWM brightness dimming with an external PWM signal. The signal of the PWM maximum frequency can be as high as 22 kHz. Dimming ratios up to 5000:1 can be achieved with a 200-Hz PWM signal. The TPS61199 integrates overcurrent protection for the switch FET, soft start-up, LED short protection, LED open protection, and overtemperature shutdown protection. The TPS61199 device is available in 20-pin SO and HTSSOP packages.

For all available packages, see the orderable addendum at the end of the data sheet.
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기술 자료

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8개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 TPS61199 White-LED Driver for LCD Monitor Backlighting datasheet (Rev. B) PDF | HTML 2016. 11. 23
백서 Common LED Functions and LED Driver Design Considerations 2020. 9. 21
애플리케이션 노트 Some Guidelines and Tips for the LED Driver Application 2019. 8. 14
애플리케이션 노트 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018. 12. 11
선택 가이드 Power Management Guide 2018 (Rev. R) 2018. 6. 25
애플리케이션 노트 High-Brightness Portable Lighting 2016. 10. 4
EVM User's guide TPS61199EVM-598 EVM for TPS61199 WLED Driver for LCD Monitor Backlighting 2011. 1. 4
애플리케이션 노트 Description Compensating the Current Mode Boost Control Loop 2010. 12. 9

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평가 보드

TPS61199EVM-598 — LCD 모니터 백라이트용 TPS61199 백색 LED 드라이버의 평가 모듈

This TPS61199EVM-598 contains the Texas Instruments TPS61199, a WLED power solution providing up to eight independently regulated current outputs using a single inductor step-up (boost) converter. The current outputs are ideal for driving a WLED backlight in notebook/laptop computers. This user's (...)

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