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LM5121MHX/NOPB PDF预览

LM5121MHX/NOPB

更新时间： 2024-09-29 12:19:27
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管输出元件
页数 文件大小 规格书
43页 2242K
描述
Wide Input Synchronous Boost Controller with Disconnection Switch Control

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LM5121MHX/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：HTSSOP, TSSOP20,.25
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：0.72其他特性：SEATED HGT-NOM, OUTPUT VOLTAGE UP TO 100 V
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：65 V
最小输入电压：4.5 V标称输入电压：12 V
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
长度：6.5 mm湿度敏感等级：1
功能数量：1端子数量：20
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电压：100 V最小输出电压：3 V
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP20,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.1 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：BOOST最大切换频率：1000 kHz
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4.4 mmBase Number Matches：1

LM5121MHX/NOPB 数据手册

 浏览型号LM5121MHX/NOPB的Datasheet PDF文件第2页浏览型号LM5121MHX/NOPB的Datasheet PDF文件第3页浏览型号LM5121MHX/NOPB的Datasheet PDF文件第4页浏览型号LM5121MHX/NOPB的Datasheet PDF文件第5页浏览型号LM5121MHX/NOPB的Datasheet PDF文件第6页浏览型号LM5121MHX/NOPB的Datasheet PDF文件第7页 
LM5121/LM5121-Q1  
www.ti.com  
SNVS963A –SEPTEMBER 2013–REVISED SEPTEMBER 2013  
Wide Input Synchronous Boost Controller with Disconnection Switch Control  
Check for Samples: LM5121/LM5121-Q1  
1
FEATURES  
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Thermally Enhanced 20-Pin HTSSOP Package  
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Available in AEC-Q100 (TJ = –40ºC to 125ºC)  
Maximum Input Voltage: 65 V  
APPLICATIONS  
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12 V, 24 V, and 48 V Power Systems  
Automotive Start-Stop  
Min Input Voltage: 3.0 V (4.5 V for startup)  
Output Voltage up to 100 V  
High Current Boost Power Supply  
Battery Powered System  
Bypass (VOUT = VIN) Operation  
1.2 V Reference with ±1.0% Accuracy  
Free-Run/Synchronizable up to 1 MHz  
Peak Current Mode Control  
DESCRIPTION  
The LM5121 is a synchronous boost controller  
intended for high-efficiency, high power boost  
regulator applications. The control method is based  
upon peak current mode control. Current mode  
control provides inherent line feed-forward, cycle-by-  
cycle current limiting and ease of loop compensation.  
Robust Integrated 3 A Gate Drivers  
Adaptive Dead-Time Control  
Optional Diode Emulation Mode  
Programmable Cycle-by-Cycle Current Limit  
Programmable Line UVLO  
The switching frequency is programmable up to 1  
MHz. Higher efficiency is achieved using two robust  
N-channel MOSFET gate drivers with adaptive dead-  
time control. A user-selectable diode emulation mode  
enables discontinuous mode operation for improved  
efficiency at light load conditions.  
Programmable Soft-Start  
Thermal Shutdown Protection  
Low Shutdown Quiescent Current: 9 μA  
Programmable Slope Compensation  
Programmable Skip Cycle Mode Reduces  
Standby Power  
The LM5121 provides disconnection switch control  
which completely disconnects the output from the  
input during an output short or a shutdown condition.  
During start-up sequence, inrush current is limited by  
the disconnection switch control.  
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Supports External VCC Bias Supply Option  
Load Disconnection in Shutdown Mode (True  
Shutdown)  
An internal charge pump allows 100% duty cycle  
operation of the high-side synchronous switch  
(Bypass operation). Additional features include  
thermal shutdown, frequency synchronization, hiccup  
mode current limit and adjustable line undervoltage  
lockout.  
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Inrush Current Limiting  
Hiccup Mode Short Circuit / Overload  
Protection  
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Circuit Breaker Function  
Capable of Input Transient Suppression  
Capable of Reverse Battery Protection  
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.  
2
All trademarks are the property of their respective owners.  
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 © 2013, Texas Instruments Incorporated  
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LM5121MHX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM5121QMH/NOPB TI

完全替代

 Wide Input Synchronous Boost Controller with Disconnection Switch Control
LM5121MH/NOPB TI

完全替代

 Wide Input Synchronous Boost Controller with Disconnection Switch Control
LM5121MHE/NOPB TI

类似代替

 Wide Input Synchronous Boost Controller with Disconnection Switch Control

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