基于LM5035C的RD-183 3.3V 30A电源设计

2011-05-12 20:39:42来源: 互联网 关键字:电源  电源设计  设计

LM5035CNS公司的是半桥控制器/栅极驱动器,包括了采用电压模式控制的实现半桥拓扑功率转换器的所有功能。半桥栅极驱动器可达105V/2A,同步整流控制输出可编程延迟。本文介绍了LM5035C主要特性,方框图,评估板电路图,以及1/4砖形高压3.3V 30A电源参考设计主要特性,电路图和所用材料清单(BOM)。

LM5035C:PWM Controller with Integrated Half-Bridge and SyncFET Drivers
The LM5035C Half-Bridge Controller/Gate Driver contains all of the features necessary to implement half-bridge topology power converters using voltage mode control with line voltage feed-forward.

The LM5035C is a functional variant of the LM5035B halfbridge PWM controller. The amplitude of the SR1 and SR2 waveforms are 5V instead of the Vcc level. Also, the soft-stop function is disabled in the LM5035C.

The LM5035, LM5035A, LM5035B, and LM5035C include a floating high-side gate driver, which is capable of operating with supply voltages up to 105V. Both the high-side and lowside gate drivers are capable of 2A peak. An internal high voltage startup regulator is included, along with programmable line undervoltage lockout (UVLO) and overvoltage protection (OVP). The oscillator is programmed with a single resistor to frequencies up to 2MHz. The oscillator can also be synchronized to an external clock. A current sense input and a programmable timer provide cycle-by-cycle current limit and adjustable hiccup mode overload protection.

LM5035C 主要特性:

■ 105V / 2A Half-Bridge Gate Drivers

■ Synchronous Rectifier Control Outputs with Programmable Delays

■ Reduced Deadtime Between High and Low Side Drive for Higher Maximum Duty Cycle.

■ High Voltage (105V) Start-up Regulator

■ Voltage mode Control with Line Feed-Forward and Volt Second Limiting

■ Resistor Programmed, 2MHz Capable Oscillator

■ Programmable Line Under-Voltage Lockout and Over- Voltage Protection

■ Internal Thermal Shutdown Protection

■ Adjustable Soft-Start

■ Versatile Dual Mode Over-Current Protection with Hiccup Delay Timer

■ Cycle-by-Cycle Over-Current Protection

■ Direct Opto-coupler Interface

■ Logic level Synchronous Rectifier Drives

■ 5V Reference Output

Packages

■ TSSOP-20EP (Thermally enhanced)

■ LLP-24 (4mm x 5mm)

图1。LM5035C方框图

图2。LM5035C简化应用框图

图3。LM5035C评估板电路图

1/4砖形高压3.3V 30A电源参考设计

The LM5035C evaluation board is designed to provide the design engineer with a fully functional power converter based on the Half Bridge topology to evaluate the LM5035C controller.

The LM5035C is a functional variant of the LM5035B Half- Bridge PWM Controller. The amplitude of the SR control signals are 5V instead of the VCC level. The evaluation board
is provided in an industry standard quarter-brick footprint.

图4。LM5035C评估板外形图

评估板主要特性:

The performance of the evaluation board is as follows:

■ Input operating range: 36V to 75V

■ Output voltage: 3.3V

■ Output current: 0 to 30A

■ Measured efficiency: 89% at 30A, 92% at 15A

■ Frequency of operation: 400 kHz

■ Board size: 2.28 x 1.45 x 0.5 inches

■ Load Regulation: 0.2%

■ Line Regulation: 0.1%

■ Line UVLO (33.9V/31.9V on/off)

■ Line OVP (79.4V/78.3V off/on)

■ Hiccup current limit

图5。LM5035C应用电路: 输入36-75V,输出3.3V 30A

LM5035C应用电路材料清单(BOM):

关键字:电源  电源设计  设计

编辑:神话 引用地址:http://www.eeworld.com.cn/mndz/2011/0512/article_8491.html
本网站转载的所有的文章、图片、音频视频文件等资料的版权归版权所有人所有,本站采用的非本站原创文章及图片等内容无法一一联系确认版权者。如果本网所选内容的文章作者及编辑认为其作品不宜公开自由传播,或不应无偿使用,请及时通过电子邮件或电话通知我们,以迅速采取适当措施,避免给双方造成不必要的经济损失。

上一篇:电子能源管理系统:电池管理与发电机控制
下一篇:混合动力汽车挑战电源芯片与功率器件

关注eeworld公众号 快捷获取更多信息
关注eeworld公众号
快捷获取更多信息
关注eeworld服务号 享受更多官方福利
关注eeworld服务号
享受更多官方福利
推荐阅读
全部
电源
电源设计
设计

小广播

独家专题更多

TI车载信息娱乐系统的音视频解决方案
TI车载信息娱乐系统的音视频解决方案
汇总了TI汽车信息娱乐系统方案、优质音频解决方案、汽车娱乐系统和仪表盘参考设计相关的文档、视频等资源
迎接创新的黄金时代 无创想,不奇迹
迎接创新的黄金时代 无创想,不奇迹
​TE工程师帮助将不可能变成可能,通过技术突破,使世界更加清洁、安全和美好。
TTI携TE传感器样片与你相见,一起传感未来
TTI携TE传感器样片与你相见,一起传感未来
TTI携TE传感器样片与你相见,一起传感未来
电子工程世界版权所有 京ICP证060456号 京ICP备10001474号 电信业务审批[2006]字第258号函 京公海网安备110108001534 Copyright © 2005-2017 EEWORLD.com.cn, Inc. All rights reserved