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TPS61197

新規設計での使用を推奨しません

シングル・ストリング WLED ドライバ、LCD TV 用

ご注文はこちら
データシート

TPS61197

新規設計での使用を推奨しません
データシート ご注文はこちら

製品詳細

Number of channels 1 Vin (min) (V) 8 Vin (max) (V) 30 Vout (min) (V) 8 Vout (max) (V) 300 Type Inductive Switching frequency (max) (kHz) 800 Duty cycle (max) (%) 98 LED current per channel (mA) 1000 Peak efficiency (%) 96 Topology Boost Features Adjustable Switch Frequency, Enable/Shutdown, Fault Detection, OVP, PWM control, Thermal shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 1 Vin (min) (V) 8 Vin (max) (V) 30 Vout (min) (V) 8 Vout (max) (V) 300 Type Inductive Switching frequency (max) (kHz) 800 Duty cycle (max) (%) 98 LED current per channel (mA) 1000 Peak efficiency (%) 96 Topology Boost Features Adjustable Switch Frequency, Enable/Shutdown, Fault Detection, OVP, PWM control, Thermal shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
SOIC (D) 16 59.4 mm² 9.9 x 6
  • 8-V to 30-V Input Voltage
  • 50-kHz to 800-kHz Programmable Switching Frequency
  • Adaptive Boost Output to White-LED Voltage
  • High-Precision PWM Dimming Resolution up to 5000:1
  • Programmable Overvoltage Protection Threshold at Output
  • Programmable Undervoltage Threshold at Input with Adjustable Hysteresis
  • Adjustable Soft-Start Time Independent of Dimming Duty Cycle
  • Built-in LED Open and IFB Short Protections
  • Built-in Schottky Diode Open/Short Protection
  • Thermal Shutdown
  • 8-V to 30-V Input Voltage
  • 50-kHz to 800-kHz Programmable Switching Frequency
  • Adaptive Boost Output to White-LED Voltage
  • High-Precision PWM Dimming Resolution up to 5000:1
  • Programmable Overvoltage Protection Threshold at Output
  • Programmable Undervoltage Threshold at Input with Adjustable Hysteresis
  • Adjustable Soft-Start Time Independent of Dimming Duty Cycle
  • Built-in LED Open and IFB Short Protections
  • Built-in Schottky Diode Open/Short Protection
  • Thermal Shutdown

The TPS61197 provides highly integrated solutions for LCD TV backlighting. This device is a current-mode boost controller driving one WLED string with multiple LEDs in series. The TPS61197 adjusts the output voltage of the boost controller automatically to provide only the minimum voltage required by the LED string to generate the setting LED current, thereby optimizing the efficiency of the driver.

The device supports direct PWM brightness dimming method. During the pulse-width modulation (PWM) dimming, the white LED current is turned on and off at the duty cycle and frequency, which are determined by an external PWM signal. The PWM dimming frequency ranges from 90 Hz to 22 kHz.

The TPS61197 integrates overcurrent protection, output short-circuit protection, Schottky diode open and short protection, LED open protection, LED-string short protection, and overtemperature shutdown circuit. The device also provides programmable input undervoltage lockout (UVLO) threshold and output overvoltage protection (OVP) threshold. The device is available in a 16-pin SOIC package, which is ideal for a single-layer PCB board.

The TPS61197 provides highly integrated solutions for LCD TV backlighting. This device is a current-mode boost controller driving one WLED string with multiple LEDs in series. The TPS61197 adjusts the output voltage of the boost controller automatically to provide only the minimum voltage required by the LED string to generate the setting LED current, thereby optimizing the efficiency of the driver.

The device supports direct PWM brightness dimming method. During the pulse-width modulation (PWM) dimming, the white LED current is turned on and off at the duty cycle and frequency, which are determined by an external PWM signal. The PWM dimming frequency ranges from 90 Hz to 22 kHz.

The TPS61197 integrates overcurrent protection, output short-circuit protection, Schottky diode open and short protection, LED open protection, LED-string short protection, and overtemperature shutdown circuit. The device also provides programmable input undervoltage lockout (UVLO) threshold and output overvoltage protection (OVP) threshold. The device is available in a 16-pin SOIC package, which is ideal for a single-layer PCB board.
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種類 タイトル 最新の英語版をダウンロード 日付
* データシート TPS61197 Single-String White-LED Driver for LCD TV データシート (Rev. B) PDF | HTML 2017年 6月 16日

購入と品質

記載されている情報：
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報：
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  • 組み立てを実施した拠点