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適用智慧型手機的雙通道 WLED 驅動器

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Number of channels 2 Vin (min) (V) 2.7 Vin (max) (V) 6.5 Vout (min) (V) 2.7 Vout (max) (V) 37.5 Type Inductive Switching frequency (max) (kHz) 1200 Duty cycle (max) (%) 99.5 LED current per channel (mA) 30 Peak efficiency (%) 90 Topology Boost Features Enable/Shutdown, OVP, PWM control, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 150 Rating Catalog
Number of channels 2 Vin (min) (V) 2.7 Vin (max) (V) 6.5 Vout (min) (V) 2.7 Vout (max) (V) 37.5 Type Inductive Switching frequency (max) (kHz) 1200 Duty cycle (max) (%) 99.5 LED current per channel (mA) 30 Peak efficiency (%) 90 Topology Boost Features Enable/Shutdown, OVP, PWM control, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 150 Rating Catalog
DSBGA (YFF) 9 1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001
  • 2.7-V to 6.5-V Input Voltage
  • Integrated 1.5-A, 40-V MOSFET
  • 1.2-MHz Switching Frequency
  • Dual Current Sinks of up to 30 mA Current Each
  • 1% Typical Current Matching and Accuracy
  • 37.5-V Overvoltage Protection (OVP) Threshold
  • Adaptive Boost Output to WLED Voltages
  • Very Low Voltage Headroom Control (90 mV)
  • Flexible Digital and PWM Brightness Control
  • One-Wire Control Interface (EasyScale™)
  • PWM Dimming Control Interface
  • Up to 100:1 PWM Dimming Ratio
  • Up to 10-bit Dimming Resolution
  • Up to 90% Efficiency
  • Overvoltage Protection
  • Built-in Soft Start
  • Built-in WLED Open and Short Protection
  • Thermal Shutdown
  • Supports 4.7-µH Inductor Application
  • 2.7-V to 6.5-V Input Voltage
  • Integrated 1.5-A, 40-V MOSFET
  • 1.2-MHz Switching Frequency
  • Dual Current Sinks of up to 30 mA Current Each
  • 1% Typical Current Matching and Accuracy
  • 37.5-V Overvoltage Protection (OVP) Threshold
  • Adaptive Boost Output to WLED Voltages
  • Very Low Voltage Headroom Control (90 mV)
  • Flexible Digital and PWM Brightness Control
  • One-Wire Control Interface (EasyScale™)
  • PWM Dimming Control Interface
  • Up to 100:1 PWM Dimming Ratio
  • Up to 10-bit Dimming Resolution
  • Up to 90% Efficiency
  • Overvoltage Protection
  • Built-in Soft Start
  • Built-in WLED Open and Short Protection
  • Thermal Shutdown
  • Supports 4.7-µH Inductor Application

The TPS61163 is a dual-channel WLED driver that provides highly integrated solutions for single-cell Li-ion battery-powered smartphone backlights. The device has a built-in high-efficiency boost regulator with integrated 1.5-A, 40-V power MOSFET and supports a voltage as low as 2.7 V. With two high current-matching-capability current-sink regulators, the device can drive up to 10s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage and allows very low voltage-headroom control, thus effectively improving the efficiency of the LED strings.

The TPS61163 supports both a PWM dimming interface and a one-wire digital EasyScale™ dimming interface, either which can achieve 9-bit dimming control.

The TPS61163 integrates built-in soft start, overvoltage and overcurrent protection, and thermal shutdown protections.

The TPS61163 is a dual-channel WLED driver that provides highly integrated solutions for single-cell Li-ion battery-powered smartphone backlights. The device has a built-in high-efficiency boost regulator with integrated 1.5-A, 40-V power MOSFET and supports a voltage as low as 2.7 V. With two high current-matching-capability current-sink regulators, the device can drive up to 10s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage and allows very low voltage-headroom control, thus effectively improving the efficiency of the LED strings.

The TPS61163 supports both a PWM dimming interface and a one-wire digital EasyScale™ dimming interface, either which can achieve 9-bit dimming control.

The TPS61163 integrates built-in soft start, overvoltage and overcurrent protection, and thermal shutdown protections.

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* Data sheet TPS61163 Dual-Channel WLED Driver for Smart Phones datasheet (Rev. D) PDF | HTML 2016年 5月 26日

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