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Controladores para LED de retroiluminación

TPS61162

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Controlador WLED de doble canal para teléfonos inteligentes

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TPS61162

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Detalles del producto

Number of channels 2 Vin (min) (V) 2.7 Vin (max) (V) 6.5 Vout (min) (V) 2.7 Vout (max) (V) 26.5 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 85 Rating Catalog
Number of channels 2 Vin (min) (V) 2.7 Vin (max) (V) 6.5 Vout (min) (V) 2.7 Vout (max) (V) 26.5 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 85 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
  • 26.5-V Overvoltage Protection 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
  • 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
  • 26.5-V Overvoltage Protection 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
  • Built-in Soft Start
  • Built-in WLED Open and Short Protection
  • Thermal Shutdown
  • Supports 4.7-µH Inductor Application

The TPS61162D is a dual-channel WLED driver which provides highly integrated solutions for single-cell Li-ion-battery-powered smart-phone backlighting. The device has a built-in high efficiency boost regulator with integrated 1.5-A/40-V power MOSFET and can support as low as 2.7-V input voltage. With two high current-matching capability current sink regulators, the device can drive up to 7s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage, allowing very low voltage headroom control, thus improving LED strings efficiency effectively.

The TPS61162D supports both the PWM dimming interface and one-wire digital EasyScale dimming interface and can realize 9-bit brightness code programming.

The TPS61162D integrates built-in soft start, overvoltage, and overcurrent protection, as well as thermal shutdown protections.

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

The TPS61162D is a dual-channel WLED driver which provides highly integrated solutions for single-cell Li-ion-battery-powered smart-phone backlighting. The device has a built-in high efficiency boost regulator with integrated 1.5-A/40-V power MOSFET and can support as low as 2.7-V input voltage. With two high current-matching capability current sink regulators, the device can drive up to 7s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage, allowing very low voltage headroom control, thus improving LED strings efficiency effectively.

The TPS61162D supports both the PWM dimming interface and one-wire digital EasyScale dimming interface and can realize 9-bit brightness code programming.

The TPS61162D integrates built-in soft start, overvoltage, and overcurrent protection, as well as thermal shutdown protections.

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

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* Data sheet TPS61162D Dual-Channel WLED Drivers for Smart Phones datasheet (Rev. A) PDF | HTML 29 mar 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 oct 2016
Application note Schottky Diode Selection in Asynchronous Boost Converters 06 sep 2016

Diseño y desarrollo

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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DSBGA (YFF) 9 Ver opciones
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