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LM5045MHX/NOPB PDF预览

LM5045MHX/NOPB

更新时间： 2024-11-29 13:09:23
品牌 Logo 应用领域
德州仪器 - TI 驱动器控制器
页数 文件大小 规格书
38页 1273K
描述
Full-bridge PWM controller with Integrated MOSFET Drivers 28-HTSSOP -40 to 125

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LM5045MHX/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, TSSOP28,.25
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.55模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER
控制模式：CURRENT/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：e3长度：9.7 mm
湿度敏感等级：1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封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP28,.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：1.2 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：540 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 mm
Base Number Matches：1

LM5045MHX/NOPB 数据手册

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LM5045  
www.ti.com  
SNVS699G –FEBRUARY 2011–REVISED MARCH 2013  
Full-Bridge PWM Controller with Integrated MOSFET Drivers  
Check for Samples: LM5045  
1
FEATURES  
DESCRIPTION  
The LM5045 PWM controller contains all of the  
features necessary to implement Full-Bridge topology  
power converters 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 brige  
MOSFETs plus control signals for the secondary side  
synchronous rectifier MOSFETs. External resistors  
program the leading and trailing edge dead-time  
between the main and synchronous rectifier control  
signals. 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-start and a 2 MHz  
capable oscillator with synchronization capability and  
thermal shutdown.  
2
•
Highest Integration Controller for Small Form  
Factor, High Density Power Converters  
•
•
High Voltage Start-up Regulator  
Intelligent Sync Rectifier Start-up Allows  
Linear Turn-on into Pre-biased Loads  
•
•
Synchronous Rectifiers Disabled in UVLO  
mode and Hiccup Mode  
Two Independent, Programmable  
Synchronous Rectifier dead-time Adjustments  
•
•
•
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  
PACKAGES  
•
•
HTSSOP 28 pin  
WQFN 28 pin (5mm x 5mm)  
Simplified Full-Bridge Power Converter  
Vin  
Vout  
T1  
T1  
VCC  
VCC  
HO1 BST1  
VIN  
LO1 SLOPE RAMP CS LO2 HS2 BST2 HO2  
HS1  
GATE  
DRIVE  
ISOLATION  
SR1  
UVLO  
OVP  
SR2  
LM5045 FULL-BRIDGE CONTROLLER  
WITH INTEGRATED GATE DRIVERS  
VCC  
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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LM5045MHX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM5045MH/NOPB TI

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