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LM3500TL-21/NOPB PDF预览

LM3500TL-21/NOPB

更新时间： 2024-01-27 10:23:51
品牌 Logo 应用领域
德州仪器 - TI 驱动接口集成电路
页数 文件大小 规格书
24页 892K
描述
Synchronous Step-up DC/DC Converter for White LED Applications 8-DSBGA -40 to 85

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LM3500TL-21/NOPB 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：VFBGA,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：7.54接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：S-XBGA-B8JESD-609代码：e1
长度：1.92 mm湿度敏感等级：1
复用显示功能：NO功能数量：1
区段数：1端子数量：8
最高工作温度：85 °C最低工作温度：-10 °C
封装主体材料：UNSPECIFIED封装代码：VFBGA
封装形状：SQUARE封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：0.675 mm最大供电电压：7 V
最小供电电压：2.7 V标称供电电压：3 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：40宽度：1.92 mm
Base Number Matches：1

LM3500TL-21/NOPB 数据手册

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LM3500  
www.ti.com  
SNVS231G –AUGUST 2003–REVISED MAY 2013  
LM3500 Synchronous Step-up DC/DC Converter for White LED Applications  
Check for Samples: LM3500  
1
FEATURES  
APPLICATIONS  
2
•
Synchronous Rectification, High Efficiency  
and no External Schottky Diode Required  
•
•
•
•
•
LCD Bias Supplies  
White LED Backlighting  
Handheld Devices  
Digital Cameras  
•
•
Uses Small Surface Mount Components  
Can Drive 2-5 White LEDs in Series  
–
(May Function With More Low-VF LEDs)  
Portable Applications  
•
•
2.7V to 7V Input Range  
DESCRIPTION  
Internal Output Over-Voltage Protection (OVP)  
Circuitry, with no External Zener Diode  
Required  
The LM3500 is a fixed-frequency step-up DC/DC  
converter that is ideal for driving white LEDs for  
display backlighting and other lighting functions. With  
fully intergrated synchronous switching (no external  
schottky diode required) and a low feedback voltage  
(500mV), power efficiency of the LM3500 circuit has  
been optimized for lighting applications in wireless  
phones and other portable products (single cell Li-Ion  
or 3-cell NiMH battery supplies). The LM3500  
operates with a fixed 1MHz switching frequency.  
When used with ceramic input and output capacitors,  
the LM3500 provides a small, low-noise, low-cost  
solution.  
–
LM3500-16: 15.5V OVP; LM3500-21: 20.5V  
OVP.  
•
•
•
True Shutdown Isolation  
Input Undervoltage Lockout  
Requires Only Small Ceramic Capacitors at the  
Input and Output  
•
•
•
Thermal Shutdown  
0.1µA Shutdown Current  
Small 8-Bump Thin DSBGA Package  
Typical Application Circuit  
L
VIN  
2.7V - 5.5V  
22 mH  
B1  
VIN  
C2  
VSW  
A3  
A2  
COUT  
CIN  
NC  
LM3500-16  
C1  
1mF  
Ceramic  
VOUT  
1mF  
Ceramic  
>1.1V  
<0.3V  
B3  
SHDN  
FB  
AGND GND  
C3  
A1  
R2  
24W  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2003–2013, Texas Instruments Incorporated  
1234567...24

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