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照明 LED 驅動器

LM3560

現行

同步升壓 flash 驅動器，具雙 1A 高側電流源 (2A 總 flash 電流)

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產品規格表

LM3560

現行
產品規格表 立即訂購

產品詳細資料

Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.5 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 Number of channels 2 Rating Catalog
Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.5 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 Number of channels 2 Rating Catalog
DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25
  • 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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類型 標題 日期
* Data sheet LM3560 Synchronous Boost Flash Driver With Dual 1-A High-Side Current Sources (2-A Total Flash Current) datasheet (Rev. C) PDF | HTML 2016年 11月 22日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
User guide AN-2057 LM3559/LM3560 Evaluation Board (Rev. A) 2013年 4月 30日

設計與開發

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開發板

LM3559EVAL — 適用於 LM3559 的評估板

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.

使用指南: PDF
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驅動程式或資料庫

LM3560SW-LINUX — 適用於 LM3560 的 Linux 驅動程式

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 (...)

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開發模組 (EVM) 的 GUI

SNVC049 — LM3560 Graphical User Interface

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產品
照明 LED 驅動器
LM3560 — 同步升壓 flash 驅動器，具雙 1A 高側電流源 (2A 總 flash 電流)
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 檢視選項
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