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LM3500TLX-16 PDF预览

LM3500TLX-16

更新时间： 2024-02-26 06:29:44
品牌 Logo 应用领域
美国国家半导体 - NSC 显示驱动器转换器驱动程序和接口接口集成电路
页数 文件大小 规格书
18页 1069K
描述
Synchronous Step-up DC/DC Converter for White LED

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中文翻译

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LM3500TLX-16 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：BGA
包装说明：VFBGA,针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.07
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-XBGA-B8
JESD-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：-40 °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：INDUSTRIAL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：1.92 mmBase Number Matches：1

LM3500TLX-16 数据手册

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February 2005  
LM3500  
Synchronous Step-up DC/DC Converter for White LED  
Applications  
General Description  
Features  
n Synchronous rectification, high efficiency and no  
external schottky 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 synchro-  
nous 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 oper-  
ates with a fixed 1MHz switching frequency. When used with  
ceramic input and output capacitors, the LM3500 provides a  
small, low-noise, low-cost solution.  
n Uses small surface mount components  
n Can drive 2-5 white LEDs in series  
(may function with more low-VF LEDs)  
n 2.7V to 7V input range  
n Internal output over-voltage protection (OVP) circuitry,  
with no external zener diode required  
LM3500-16: 15.5V OVP; LM3500-21: 20.5V OVP.  
n True shutdown isolation  
n Input undervoltage lockout  
Two LM3500 options are available with different output volt-  
age capabilities. The LM3500-21 has a maximum output  
voltage of 21V and is typically suited for driving 4 or 5 white  
LEDs in series. The LM3500-16 has a maximum output  
voltage of 16V and is typically suited for driving 3 or 4 white  
LEDs in series (maximum number of series LEDs dependent  
on LED forward voltage). If the primary white LED network  
should be disconnected, the LM3500 uses internal protec-  
tion circuitry on the output to prevent a destructive over-  
voltage event.  
n Requires only small ceramic capacitors at the input and  
output  
n Thermal Shutdown  
n 0.1µA shutdown current  
n Small 8-bump thin micro SMD package  
Applications  
n LCD Bias Supplies  
n White LED Backlighting  
n Handheld Devices  
n Digital Cameras  
A single external resistor is used to set the maximum LED  
current in LED-drive applications. The LED current can eas-  
ily be adjusted using a pulse width modulated (PWM) signal  
on the shutdown pin. In shutdown, the LM3500 completely  
disconnects the input from output, creating total isolation and  
preventing any leakage currents from trickling into the LEDs.  
n Portable Applications  
Typical Application Circuit  
20065701  
© 2005 National Semiconductor Corporation  
DS200657  
www.national.com  
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LM3500TLX-16/NOPB TI

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 		Synchronous Step-up DC/DC Converter for White LED Applications 8-DSBGA -40 to 85
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 		IC LED DISPLAY DRIVER, BGA8, MICRO, SMD-8, Display Driver
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 		IC LED DISPLAY DRIVER, BGA8, MICRO, SMD-8, Display Driver
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 		Synchronous Step-up DC/DC Converter for White LED Applications
LM3501 TI

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 		Synchronous Step-up DC/DC Converter for White LED Applications
LM3501TL-16 NSC

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 		Synchronous Step-up DC/DC Converter for White LED Applications
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 		适用于白光 LED 应用的同步升压直流/直流转换器 | YZR | 8 | -40 to
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