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LM3555TLE/NOPB PDF预览

LM3555TLE/NOPB

更新时间： 2023-09-03 20:27:19
品牌 Logo 应用领域
德州仪器 - TI 升压转换器驱动接口集成电路驱动器
页数 文件大小 规格书
38页 873K
描述
具有 500mA 高侧 LED 驱动器和双模式控制接口的同步升压转换器 | YZR | 12 | -30 to 85

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LM3555TLE/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：VFBGA, BGA12,3X4,20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.35其他特性：NO OF SEGMENTS CONSIDERED FOR 400 MILLI AMP
数据输入模式：SERIAL输入特性：STANDARD
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PBGA-B12
JESD-609代码：e1长度：2.06 mm
湿度敏感等级：1复用显示功能：NO
功能数量：1区段数：2
端子数量：12最高工作温度：85 °C
最低工作温度：-30 °C封装主体材料：PLASTIC/EPOXY
封装代码：VFBGA封装等效代码：BGA12,3X4,20
封装形状：RECTANGULAR封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：260电源：3.6 V
认证状态：Not Qualified座面最大高度：0.675 mm
子类别：Display Drivers最大供电电压：5.5 V
最小供电电压：2.5 V标称供电电压：3.6 V
表面贴装：YES温度等级：OTHER
端子面层：Tin/Silver/Copper (Sn/Ag/Cu)端子形式：BALL
端子节距：0.5 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：1.535 mm
最小 fmax：0.4 MHz

LM3555TLE/NOPB 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
LM3555  
SNVS594G –DECEMBER 2008–REVISED APRIL 2016  
LM3555 Synchronous Boost Converter With 500-mA High-Side  
LED Driver and Dual-Mode Control Interface  
3 Description  
1 Features  
The LM3555 is a 2-MHz fixed-frequency, current-  
1
•
High-Voltage High-Side Current Source Allows for  
Grounded Cathode LED Operation  
mode synchronous boost converter designed to drive  
either a single flash LED at 500 mA or two series  
flash LEDs at 400 mA. A high-voltage current source  
allows the LEDs to be terminated to the GND plane  
eliminating the need for an additional return trace  
back to the device.  
•
•
•
Synchronous Boost Converter  
Peak Converter Efficiency > 90%  
Accurate and Programmable LED Current  
Ranging From 60 mA to 500 mA  
A dual-mode control interface allows the user to  
•
Adaptive LED Current Range Based on LED  
Configuration  
configure the LM3555 with  
a
general-purpose  
interface using two enable pins for control or an I2C  
allowing a higher level of control. Both interfaces  
allow access to the indicator, assist light, and flash  
modes. A dedicated STROBE pin provides a direct  
interface to trigger the flash event, while an external  
TORCH pin provides an additional method for  
enabling the LEDs in a constant current mode.  
•
•
•
•
•
•
•
Dedicated Indicator Current Source  
Dedicated Torch and Strobe Pins  
Dual Mode Control (General Purpose or I2C)  
Broken Inductor Detection  
Output Overvoltage Protection  
Output and LED Short-Circuit Protection  
400-kHz I2C-Compatible Interface  
The LM3555 can adaptively scale the maximum flash  
level delivered to the LEDs based upon the flash  
configuration, whether it be a single LED or two LEDs  
in series.  
2 Applications  
Camera Phone LED Flash  
Eight protection features are available on the LM3555  
ranging from overvoltage protection to broken  
inductor detection. The LM3555 has four selectable  
inductor current limits to help the user select an  
inductor that is appropriate for the design.  
Device Information(1)  
PART NUMBER  
PACKAGE  
BODY SIZE (MAX)  
LM3555  
DSBGA (12)  
2.09 mm × 1.565 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Typical Application  
2.2 µH  
C
IN  
10 µF  
SW  
VIN  
VOUT  
VLED  
C
OUT  
10 µF  
V
BAT  
STROBE  
TORCH  
I2C/EN  
LM3555  
SCL/EN1  
SDA/EN2  
IND  
PGND SGND  
Copyright © 2016, Texas Instruments Incorporated  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
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LM3555TLE/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3555TLX/NOPB TI

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