5秒后页面跳转
捷配首页

Datasheet > LM5146_V01
LM5146_V01 PDF预览

LM5146_V01

更新时间： 2024-11-27 02:52:27
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
63页 3912K
描述
LM5146 100-V Synchronous Buck DC/DC Controller With Wide Duty Cycle Range

阅读下载

中文翻译

获取价格

LM5146_V01 数据手册

 浏览型号LM5146_V01的Datasheet PDF文件第2页浏览型号LM5146_V01的Datasheet PDF文件第3页浏览型号LM5146_V01的Datasheet PDF文件第4页浏览型号LM5146_V01的Datasheet PDF文件第5页浏览型号LM5146_V01的Datasheet PDF文件第6页浏览型号LM5146_V01的Datasheet PDF文件第7页 
LM5146  
SNVSBV0A – JUNE 2021 – REVISED JUNE 2021  
LM5146 100-V Synchronous Buck DC/DC Controller With Wide Duty Cycle Range  
1 Features  
2 Applications  
•
Functional Safety-Capable  
– Documentation available to aid functional safety  
system design  
•
•
•
•
•
•
Wireless infrastructure, cloud computing  
Industrial motor drives, test and measurement  
Personal transport vehicle: electric bike  
Asset tracking and fleet management systems  
Non-isolated PoE, IP cameras  
•
Versatile synchronous buck DC/DC controller  
– Wide input voltage range of 5.5 V to 100 V  
– 150°C maximum junction temperature  
– 0.8-V reference with ±1% feedback accuracy  
– Adjustable output voltage from 0.8 V to 60 V  
– 40-ns tON(min) for high VIN / VOUT ratio  
– 140-ns tOFF(min) for low dropout  
– Lossless RDS(on) or shunt current sensing  
– Optimized for CISPR 11 and CISPR 32 Class B  
EMI requirements  
Switching frequency from 100 kHz to 1 MHz  
– SYNC in and SYNC out capability  
– Selectable diode emulation or FPWM  
7.5-V gate drivers for standard VTH MOSFETs  
– 14-ns adaptive dead-time control  
– 2.3-A source and 3.5-A sink capability  
Fast line and load transient response  
– Voltage-mode control with line feedforward  
– High gain-bandwidth error amplifier  
Inherent protection features for robust design  
– Adjustable output voltage soft start  
– Hiccup-mode overcurrent protection  
– Input UVLO with hysteresis  
– VCC and gate-drive UVLO protection  
– Precision enable input and open-drain PGOOD  
indicator for sequencing and control  
– Thermal shutdown protection with hysteresis  
20-pin VQFN package with wettable flanks  
Create a custom design using the LM5146 with  
WEBENCH® Power Designer  
Inverting buck-boost regulators  
3 Description  
The LM5146 100-V synchronous buck controller  
regulates from a high input voltage source or from an  
input rail subject to high-voltage transients, minimizing  
the need for external surge suppression components.  
A high-side switch minimum on-time of 40 ns gives  
large step-down ratios, enabling the direct step-down  
conversion from a 48-V nominal input to low-voltage  
rails for reduced system complexity and solution cost.  
The LM5146 continues to operate during input voltage  
dips as low as 5.5 V, at nearly 100% duty cycle  
if needed, making it an excellent choice for high-  
performance industrial controls, robotics, datacom,  
and RF applications.  
•
•
•
•
Forced-PWM (FPWM) operation eliminates switching  
frequency variation to minimize EMI, while  
user-selectable diode emulation lowers current  
consumption at light-load conditions. The adjustable  
switching frequency as high as 1 MHz can be  
synchronized to an external clock source to eliminate  
beat frequencies in noise-sensitive applications.  
Device Information  
PART NUMBER  
LM5146  
PACKAGE(1)  
BODY SIZE (NOM)  
•
•
VQFN (20)  
4.50 mm × 3.50 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
VIN  
EN  
VIN  
VOUT  
VIN  
EN/UVLO  
Q1  
SYNCIN  
SYNC In  
HO  
BST  
SW  
LO  
RC2  
SYNC Out  
CC1  
SYNCOUT  
COMP  
FB  
RFB1  
LF  
CBST  
CC3  
VOUT  
RC1  
CC2  
LM5146  
Q2  
RT  
CIN  
COUT  
RFB2  
VCC  
SS/TRK  
AGND  
RRT  
CSS  
CVCC  
PGND  
GND  
PGOOD  
ILIM  
RILIM  
PG  
Typical Application Circuit and Efficiency Performance, VOUT = 12 V, FSW = 400 kHz  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
1234567...63

中文翻译

下载PDF

与LM5146_V01相关器件

型号 品牌 获取价格 描述 数据表
LM5146-Q1 TI

获取价格

 		LM25149 42-V Synchronous Buck DC/DC Controller with Ultra-Low IQ and Integrated Active EMI
LM5146QRGYRQ1 TI

获取价格

 		具有宽占空比范围的汽车类 100V 同步降压直流/直流控制器 | RGY | 20 | -
LM5146QRGYTQ1 TI

获取价格

 		具有宽占空比范围的汽车类 100V 同步降压直流/直流控制器 | RGY | 20 | -
LM5146RGYR TI

获取价格

 		LM5146 100-V Synchronous Buck DC/DC Controller With Wide Duty Cycle Range
LM5148 TI

获取价格

 		3.5V 至 80V、电流模式同步降压控制器
LM5148-Q1 TI

获取价格

 		具有超低 IQ 的汽车类 80V 同步直流/直流降压控制器
LM5148QRGYRQ1 TI

获取价格

 		具有超低 IQ 的汽车类 80V 同步直流/直流降压控制器 | RGY | 24 | -4
LM5148RGYR TI

获取价格

 		3.5V 至 80V、电流模式同步降压控制器 | RGY | 24 | -40 to 12
LM5149 TI

获取价格

 		具有超低 IQ 和集成式有源 EMI 滤波器的 80V 同步降压直流/直流控制器
LM5149-Q1 TI

获取价格

 		LM25149 42-V Synchronous Buck DC/DC Controller with Ultra-Low IQ and Integrated Active EMI

与LM5146_V01相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证