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.

• Dual High-Side Current Sources Allow for Grounded Cathode LED Operation
• Accurate and Programmable LED Current from 31.25mA to 2A
• 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

• 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

LM3560的完整型号有：LM3560TLE-20/NOPB、LM3560TLX-20/NOPB、LM3560TLX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM3560TLE-20/NOPB，工作温度：-40 to 85，封装：DSBGA (YZR)-16，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网LM3560TLE-20/NOPB的批量USD价格：.845（1000+）

LM3560TLX-20/NOPB，工作温度：-40 to 85，封装：DSBGA (YZR)-16，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网LM3560TLX-20/NOPB的批量USD价格：.704（1000+）

LM3560TLX/NOPB，工作温度：-40 to 85，封装：DSBGA (YZR)-16，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网LM3560TLX/NOPB的批量USD价格：.836（1000+）

LM3559EVAL — 用于 LM3559 的评估板

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.

LM3560SW-LINUX — 用于 LM3560 的 Linux 驱动程序

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 (...)

LM3560 Graphical User Interface

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