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TPS61162A

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Dual-channel WLED drivers For smart phone

Product details

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 EasyScale 1-Wire Interface, Enable/Shutdown, OVP, PWM control, Soft Start, Thermal shutdown Operating temperature range (°C) -55 to 125 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 EasyScale 1-Wire Interface, Enable/Shutdown, OVP, PWM control, Soft Start, Thermal shutdown Operating temperature range (°C) -55 to 125 Rating Catalog
DSBGA (YFF) 9 1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001
  • 2.7V to 6.5V input voltage
  • Integrated 1.5A/40V MOSFET
  • 1.2MHz switching frequency
  • Dual current sinks of up to 30mA current each
  • 1% typical current matching and accuracy
  • Optional 26.5V/37.5V OVP threshold
    • TPS61162A: 26.5V OVP
    • TPS61163A: 37.5V OVP
  • Adaptive boost output to WLED voltages
  • Very low voltage headroom control (90mV)
  • Flexible digital and PWM brightness control
  • One-Wire control interface ( EasyScale™)
  • PWM dimming control interface
  • Up to 100:1 PWM dimming ratio
  • Up to 9-bit dimming resolution
  • Up to 90% efficiency
  • Built-in soft start
  • PFM mode at light load
  • Overvoltage protection
  • Built-in WLED open/short protection
  • Thermal shutdown
  • Supports 4.7µH inductor application
  • 2.7V to 6.5V input voltage
  • Integrated 1.5A/40V MOSFET
  • 1.2MHz switching frequency
  • Dual current sinks of up to 30mA current each
  • 1% typical current matching and accuracy
  • Optional 26.5V/37.5V OVP threshold
    • TPS61162A: 26.5V OVP
    • TPS61163A: 37.5V OVP
  • Adaptive boost output to WLED voltages
  • Very low voltage headroom control (90mV)
  • Flexible digital and PWM brightness control
  • One-Wire control interface ( EasyScale™)
  • PWM dimming control interface
  • Up to 100:1 PWM dimming ratio
  • Up to 9-bit dimming resolution
  • Up to 90% efficiency
  • Built-in soft start
  • PFM mode at light load
  • Overvoltage protection
  • Built-in WLED open/short protection
  • Thermal shutdown
  • Supports 4.7µH inductor application

The TPS61162A and TPS61163A are dual-channel WLED drivers which provide highly integrated solutions for single-cell Li-ion battery powered smart phone backlight. The devices have a built-in high efficiency boost regulator with integrated 1.5A, 40V power MOSFET and support as low as 2.7V input voltage. With two high current-matching capability current sink regulators, the devices can drive up to 10s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage and allow very low voltage headroom control, thus to improve LED strings efficiency effectively.

The TPS61162A and TPS61163A support both the PWM dimming interface and one-wire digital EasyScale™ dimming interface and can realize 9-bit brightness code programming.

The TPS61162A and TPS61163A integrate built-in soft start, as well as overvoltage, overcurrent, and thermal shutdown protections.

The TPS61162A and TPS61163A are dual-channel WLED drivers which provide highly integrated solutions for single-cell Li-ion battery powered smart phone backlight. The devices have a built-in high efficiency boost regulator with integrated 1.5A, 40V power MOSFET and support as low as 2.7V input voltage. With two high current-matching capability current sink regulators, the devices can drive up to 10s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage and allow very low voltage headroom control, thus to improve LED strings efficiency effectively.

The TPS61162A and TPS61163A support both the PWM dimming interface and one-wire digital EasyScale™ dimming interface and can realize 9-bit brightness code programming.

The TPS61162A and TPS61163A integrate built-in soft start, as well as overvoltage, overcurrent, and thermal shutdown protections.

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Technical documentation

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Type Title Date
* Data sheet TPS6116xA Dual-Channel WLED Drivers For Smart Phones datasheet (Rev. B) PDF | HTML 27 May 2024
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Application note Simple Backlight Driver Dimming Performance 20 Mar 2017
Application note Analog PWM Dimming in White-LED Drivers 21 Dec 2016
EVM User's guide TPS61163AEVM-564 User's Guide 07 Jan 2014

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