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Zweikanal-WLED-Treiber für Smartphones

Produktdetails

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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Typ Titel Datum
* Data sheet TPS61163 Dual-Channel WLED Driver for Smart Phones datasheet (Rev. D) PDF | HTML 26 Mai 2016
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Application note Inductor Selection in Boost Converters for LCD Backlight Applications 24 Okt 2016
Application note Schottky Diode Selection in Asynchronous Boost Converters 06 Sep 2016

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