Product details

Input voltage (type) DC/DC Topology Boost, Current Mode Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Iout (Max) (A) 2 Iq (Typ) (mA) 0.9 Features I2C Control, Input/Output Isolation, LED Thermal Monitor, Load Disconnect During Shutdown, OVP, Over Current Protection, Synchronous Rectification Operating temperature range (C) -40 to 85 Dimming method Analog, PWM
Input voltage (type) DC/DC Topology Boost, Current Mode Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Iout (Max) (A) 2 Iq (Typ) (mA) 0.9 Features I2C Control, Input/Output Isolation, LED Thermal Monitor, Load Disconnect During Shutdown, OVP, Over Current Protection, Synchronous Rectification Operating temperature range (C) -40 to 85 Dimming method Analog, PWM
DSBGA (YZR) 16 6 mm² 2 x 2
  • Dual High-Side Current Sources Allow for Grounded Cathode LED Operation
  • Accurate and Programmable LED Current from 31.25 mA to 2 A
  • Independent LED Current Source Programmability
  • Up to 90% Efficient
  • Ultra-Small Solution Size: < 26 mm2
  • Four Operating Modes: Torch, Flash, Privacy Indicate, and Message Indicator
  • 4-Bit ADC for VLED Monitoring
  • LED Thermal Sensing and Current Scale-Back
  • Hardware Flash and Torch Enable
  • Dual Synchronization Inputs for RF Power Amplifier Pulse Events
  • LED and Output Disconnect During Shutdown
  • Open and Short LED Detection
  • 400-kHz I2C-Compatible Interface
  • Active Low Hardware Reset
  • −40°C to +85°C Ambient Temperature Range
  • Dual High-Side Current Sources Allow for Grounded Cathode LED Operation
  • Accurate and Programmable LED Current from 31.25 mA to 2 A
  • Independent LED Current Source Programmability
  • Up to 90% Efficient
  • Ultra-Small Solution Size: < 26 mm2
  • Four Operating Modes: Torch, Flash, Privacy Indicate, and Message Indicator
  • 4-Bit ADC for VLED Monitoring
  • LED Thermal Sensing and Current Scale-Back
  • Hardware Flash and Torch Enable
  • Dual Synchronization Inputs for RF Power Amplifier Pulse Events
  • LED and Output Disconnect During Shutdown
  • Open and Short LED Detection
  • 400-kHz I2C-Compatible Interface
  • Active Low Hardware Reset
  • −40°C to +85°C Ambient Temperature Range

The LM3560 is a 2-MHz fixed frequency synchronous boost converter with two 1000-mA constant current drivers for high-current white LEDs. The dual high-side current sources allow for grounded cathode LED operation and can be tied together for providing flash currents at up to 2 A through a single LED. An adaptive regulation method ensures the current for each LED remains in regulation and maximizes efficiency.

The LM3560 is controlled via an I2C-compatible interface. Features include an internal 4-bit ADC to monitor the LED voltage, independent LED current control, a hardware flash enable allowing a logic input to trigger the flash pulse, dual TX inputs which force the flash pulse into a low-current torch mode allowing for synchronization to RF power amplifier events or other high-current conditions, and an integrated comparator designed to monitor an NTC thermistor and provide an interrupt to the LED current. Additionally, an active high HWEN input provides a hardware shutdown during system software failures.

The device is available in an ultra-small 16-pin DSBGA package. The 2-MHz switching frequency, overvoltage protection and adjustable current limit allow for the use of tiny, low-profile (1-µH and 2.2-µH) inductors and ceramic (10-µF) capacitors.

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

The LM3560 is a 2-MHz fixed frequency synchronous boost converter with two 1000-mA constant current drivers for high-current white LEDs. The dual high-side current sources allow for grounded cathode LED operation and can be tied together for providing flash currents at up to 2 A through a single LED. An adaptive regulation method ensures the current for each LED remains in regulation and maximizes efficiency.

The LM3560 is controlled via an I2C-compatible interface. Features include an internal 4-bit ADC to monitor the LED voltage, independent LED current control, a hardware flash enable allowing a logic input to trigger the flash pulse, dual TX inputs which force the flash pulse into a low-current torch mode allowing for synchronization to RF power amplifier events or other high-current conditions, and an integrated comparator designed to monitor an NTC thermistor and provide an interrupt to the LED current. Additionally, an active high HWEN input provides a hardware shutdown during system software failures.

The device is available in an ultra-small 16-pin DSBGA package. The 2-MHz switching frequency, overvoltage protection and adjustable current limit allow for the use of tiny, low-profile (1-µH and 2.2-µH) inductors and ceramic (10-µF) capacitors.

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

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Technical documentation

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Type Title Date
* Data sheet LM3560 Synchronous Boost Flash Driver With Dual 1-A High-Side Current Sources (2-A Total Flash Current) datasheet (Rev. C) 22 Nov 2016
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Here's how body electronics and lighting technology are changing the driving experience 26 Sep 2016
Technical article LED brightness adjustment: high-frequency PWM dimming 26 Aug 2016
Technical article Take better selfies with innovative LED flashes 18 Nov 2014
Technical article Solving the automotive EMI issues in new cars with all the screens 11 Sep 2014
User guide AN-2057 LM3559/LM3560 Evaluation Board (Rev. A) 30 Apr 2013

Design & development

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

Evaluation board

LM3559EVAL — Evaluation Board for the LM3559

The LM3559/LM3560 Evaluation Board is designed to fully evaluate the LM3559 and LM3560 Synchronous Boost Converter with dual 900mA High Side Flash LED Drivers (LM3559) or dual 1000mA High Side Flash Drivers (LM3560) and I2C-Compatible Interface.

Driver or library

LM3560SW-LINUX — Linux Driver for LM3560

The Linux driver supports the LM3560 Flash Driver. The Linux driver supports communication through the I2C bus and interfaces with the V4L2 sub-system.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • lm3560

 

Linux Source Files

The files (...)

GUI for evaluation module (EVM)

LM3560 Graphical User Interface

SNVC049.ZIP (20 KB)
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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DSBGA (YZR) 16 View options

Ordering & quality

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  • Ongoing reliability monitoring

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