LM3560
- 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.技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM3560 Synchronous Boost Flash Driver With Dual 1-A High-Side Current Sources (2-A Total Flash Current) 数据表 (Rev. C) | PDF | HTML | 2016年 11月 22日 | ||
白皮书 | 常见 LED 功能和 LED 驱动器设计注意事项 | 英语版 | 2020年 9月 21日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
用户指南 | AN-2057 LM3559/LM3560 Evaluation Board (Rev. A) | 2013年 4月 30日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
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
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- lm3560
Linux Source Files
The files (...)
PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®
借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
DSBGA (YZR) | 16 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点