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LM5046MH PDF预览

LM5046MH

更新时间： 2024-11-29 12:06:07
品牌 Logo 应用领域
德州仪器 - TI 驱动器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
页数 文件大小 规格书
41页 1572K
描述
LM5046 Phase-Shifted Full-Bridge PWM Controller with Integrated MOSFET Drivers

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LM5046MH 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：SSOP
包装说明：HSSOP,针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：8.68
其他特性：ALSO CONFIGURED IN CURRENT MODE模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：100 V最小输入电压：14 V
标称输入电压：48 VJESD-30 代码：R-PDSO-G28
JESD-609代码：e0长度：9.7 mm
功能数量：1端子数量：28
最高工作温度：125 °C最低工作温度：-40 °C
标称输出电压：5 V封装主体材料：PLASTIC/EPOXY
封装代码：HSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH峰值回流温度（摄氏度）：NOT SPECIFIED
表面贴装：YES切换器配置：PHASE-SHIFT
最大切换频率：540 kHz温度等级：AUTOMOTIVE
端子面层：TIN LEAD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 mm
Base Number Matches：1

LM5046MH 数据手册

 浏览型号LM5046MH的Datasheet PDF文件第2页浏览型号LM5046MH的Datasheet PDF文件第3页浏览型号LM5046MH的Datasheet PDF文件第4页浏览型号LM5046MH的Datasheet PDF文件第5页浏览型号LM5046MH的Datasheet PDF文件第6页浏览型号LM5046MH的Datasheet PDF文件第7页 
LM5046  
www.ti.com  
SNVS703G –FEBRUARY 2011–REVISED MARCH 2013  
LM5046 Phase-Shifted Full-Bridge PWM Controller with Integrated MOSFET Drivers  
Check for Samples: LM5046  
1
FEATURES  
PACKAGES  
2
•
Highest Integration Controller for Small Form  
Factor, High Density Power Converters  
•
•
TSSOP-28  
WQFN-28 (5mm x 5mm)  
•
•
High Voltage Start-up Regulator  
DESCRIPTION  
Intelligent Sync Rectifier Start-up Allows  
Linear Turn-on into Pre-biased Loads  
The LM5046 PWM controller contains all of the  
features necessary to implement a Phase-Shifted  
Full-Bridge topology power converter using either  
current mode or voltage mode control. This device is  
intended to operate on the primary side of an isolated  
dc-dc converter with input voltage up to 100V. This  
highly integrated controller-driver provides dual 2A  
high and low side gate drivers for the four external  
bridge MOSFETs, plus control signals for the  
secondary side synchronous rectifier MOSFETs.  
External resistors program the dead-time to enable  
zero-volt switching of the primary FETs. Intelligent  
startup of the synchronous rectifiers allows monotonic  
turn-on of the power converter even with pre-bias  
load conditions. Additional features include cycle-by-  
cycle current limiting, hiccup mode restart,  
programmable soft-start, synchronous rectifier soft-  
•
•
Synchronous Rectifiers Disabled in UVLO  
mode and Hiccup Mode  
Two Independent, Programmable Dead-Time  
Adjustments to Enable Zero-Volt Switching.  
•
•
•
Four High Current 2A Bridge Gate Drivers  
Wide-Bandwidth Opto-coupler Interface  
Configurable for either Current Mode or  
Voltage Mode Control  
•
•
•
Dual-mode Over-Current Protection  
Resistor Programmed 2MHz Oscillator  
Programmable Line UVLO and OVP  
start and  
a
2
MHz capable oscillator with  
synchronization capability and thermal shutdown.  
Simplified Phase-Shifted Full-Bridge Power Converter  
Vin  
Vout  
Q3  
Q4  
Q1  
Q2  
T1  
T1  
VCC  
VCC  
HO1 BST1  
VIN  
LO1 SLOPE RAMP CS LO2 HS2 BST2 HO2  
HS1  
GATE  
DRIVE  
ISOLATION  
SR1  
UVLO  
OVP  
LM5046 PHASE-SHIFTED  
FULL-BRIDGE CONTROLLER  
SR2  
VCC  
WITH INTEGRATED GATE DRIVERS  
ISOLATED  
FEEDBACK  
COMP  
SSOFF  
RT  
RES  
SS  
RD1 RD2 REF PGND AGND  
SSSR  
ISOLATION  
BOUNDARY  
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 © 2011–2013, Texas Instruments Incorporated  
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