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TPS61052

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1.2A high power white LED driver with I2C compatible interface, DSBGA package

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LM36010 ACTIVE LM36010 Synchronous Boost LED flash driver Supports external strobe function.

TPS61052

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Product details

Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (max) (V) 6 Vout (min) (V) 2.5 Iout (max) (A) 1.2 Iq (typ) (mA) 8.5 Features Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (max) (V) 6 Vout (min) (V) 2.5 Iout (max) (A) 1.2 Iq (typ) (mA) 8.5 Features Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Dimming method Analog, PWM Number of channels 1 Rating Catalog
DSBGA (YZG) 12 3.9375 mm² 2.25 x 1.75 VSON (DRC) 10 9 mm² 3 x 3
  • Four Operational Modes
    • Torch and Flash up to ILED = 1200 mA
    • Voltage-Regulated Boost Converter: 4.5 V,
      5 V, and 5.25 V
    • Shutdown: 0.3 µlA (Typical)
  • Total Solution Circuit Area < 25 mm2
  • Up to 96% Efficiency
  • I2C-Compatible Interface up to 400 kbps
  • Integrated LED Turnon Safety Timer
  • Zero Latency TX-Masking Input (TPS61050)
  • Hardware Voltage Mode Selection Input
    (TPS61052)
  • Integrated ADC for LED VF Monitoring
  • Integrated Low Light Dimming Mode
  • LED Disconnect During Shutdown
  • Open and Shorted LED Protection
  • Overtemperature Protection
  • Available in a 12-Pin NanoFree™ (CSP) and
    10-Pin QFN Packaging
  • Four Operational Modes
    • Torch and Flash up to ILED = 1200 mA
    • Voltage-Regulated Boost Converter: 4.5 V,
      5 V, and 5.25 V
    • Shutdown: 0.3 µlA (Typical)
  • Total Solution Circuit Area < 25 mm2
  • Up to 96% Efficiency
  • I2C-Compatible Interface up to 400 kbps
  • Integrated LED Turnon Safety Timer
  • Zero Latency TX-Masking Input (TPS61050)
  • Hardware Voltage Mode Selection Input
    (TPS61052)
  • Integrated ADC for LED VF Monitoring
  • Integrated Low Light Dimming Mode
  • LED Disconnect During Shutdown
  • Open and Shorted LED Protection
  • Overtemperature Protection
  • Available in a 12-Pin NanoFree™ (CSP) and
    10-Pin QFN Packaging

The TPS6105x device is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current.

The 2-MHz switching frequency allows the use of small and low profile 2.2-µH inductors. To optimize overall efficiency, the device operates with only a 250-mV LED feedback voltage.

The TPS6105x device not only operates as a regulated current source, but also as a standard voltage-boost regulator. This additional operating mode can be useful to supply other high-power devices in the system, such as a hands-free audio power amplifier, or any other component requiring a supply voltage higher than the battery voltage (refer to TPS61052).

For highest flexibility, the LED current or the desired output voltage can be programmed through an I2C compatible interface. To simplify flash synchronization with the camera module, the device offers a trigger pin (FLASH_SYNC) for fast LED turnon time.

When the TPS6105x is not in use, it can be put into shutdown mode through the I2C-compatible interface, reducing the input current to 0.3 µA (typical). During shutdown, the LED pin is high impedance to avoid leakage current through the LED.

The TPS6105x device is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current.

The 2-MHz switching frequency allows the use of small and low profile 2.2-µH inductors. To optimize overall efficiency, the device operates with only a 250-mV LED feedback voltage.

The TPS6105x device not only operates as a regulated current source, but also as a standard voltage-boost regulator. This additional operating mode can be useful to supply other high-power devices in the system, such as a hands-free audio power amplifier, or any other component requiring a supply voltage higher than the battery voltage (refer to TPS61052).

For highest flexibility, the LED current or the desired output voltage can be programmed through an I2C compatible interface. To simplify flash synchronization with the camera module, the device offers a trigger pin (FLASH_SYNC) for fast LED turnon time.

When the TPS6105x is not in use, it can be put into shutdown mode through the I2C-compatible interface, reducing the input current to 0.3 µA (typical). During shutdown, the LED pin is high impedance to avoid leakage current through the LED.
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Technical documentation

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Type Title Date
* Data sheet TPS6105x 1.2-A High-Power White LED Driver 2-MHz Synchronous Boost Converter With I2C Compatible Interface datasheet (Rev. A) PDF | HTML 30 Sep 2015
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29 Nov 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
EVM User's guide TPS61050EVM-269 and TPS61052EVM-269 (Rev. B) 29 Nov 2007
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

GUI for evaluation module (EVM)

SLUC569 — TPS61050/TPS61052 GUI Software

Supported products & hardware

Supported products & hardware

Products
Illumination LED drivers
TPS61050 — 1.2A high power white LED driver with I2C compatible interface, SON package TPS61052 — 1.2A high power white LED driver with I2C compatible interface, DSBGA package
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Support software

TPS6105XEVM-SW — Software for TPS6105x Evaluation Modules

The TPS6105x EVM Software provides a software interface for the TPS6105x EVM boards. Use this software to change the TPS6105x IC registers via the USB Interface Adapter.
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Gerber file

TPS61052EVM-269 Gerber Files

SLVC122.ZIP (199 KB)
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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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Package Pins CAD symbols, footprints & 3D models
DSBGA (YZG) 12 Ultra Librarian
VSON (DRC) 10 Ultra Librarian
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