LM5115A

更新时间： 2024-11-16 04:20:07

品牌	Logo	应用领域
美国国家半导体 - NSC		转换器稳压器
页数	文件大小	规格书
20页	403K
描述
Secondary Side Post Regulator/DC-DC Converter with Power-up/Power-down Tracking

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LM5115A 数据手册

January 2007

LM5115A

Secondary Side Post Regulator/DC-DC Converter with

Power-up/Power-down Tracking

General Description

Features

The LM5115A controller contains all of the features neces-

sary to produce multiple tracking outputs using the Secondary

Side Post Regulation (SSPR) technique. The SSPR tech-

nique develops a highly efficient and well regulated auxiliary

output from the secondary side switching waveform of an iso-

lated power converter. LM5115A can be also used as a

standalone DC/DC synchronous buck controller (Refer to

Synchronous Buck section). Regulation of the auxiliary

output voltage is achieved by leading edge pulse width mod-

ulation (PWM) of the main channel duty cycle. Leading edge

modulation is compatible with either current mode or voltage

mode control of the main output. The LM5115A drives exter-

nal high-side and low-side NMOS power switches configured

as a synchronous buck regulator. A current sense amplifier

provides overload protection and operates over a wide com-

mon mode input range. Additional features include a low

dropout (LDO) bias regulator, error amplifier, precision refer-

ence, adaptive dead time control of the gate signals and

thermal shutdown.

Power-up/Power-down Tracking

■

Self-synchronization to main channel output

Leading edge pulse width modulation

Valley current Mode control

Standalone DC/DC synchronous buck mode

Operates from AC or DC input up to 75V

Wide 4.5V to 30V bias supply range

Wide 0.75V to 13.5V output range.

Top and bottom gate drivers sink 2.5A peak

Adaptive gate driver dead-time control

Wide bandwidth error amplifier (4MHz)

Programmable soft-start

Thermal shutdown protection

■

TSSOP-16 package

■

Typical Application Circuit

20207101

FIGURE 1. Simplified Multiple Output Power Converter Utilizing SSPR Technique

202071

www.national.com

12 3 4 5 6 7...20

中文翻译

下载PDF

与LM5115A相关器件

型号	品牌	获取价格	描述	数据表
LM5115A_15	TI	获取价格	Secondary Side Post Regulator/DC-DC Converter with Power-up/Power-down
LM5115AMT	NSC	获取价格	Secondary Side Post Regulator/DC-DC Converter with Power-up/Power-down Tracking
LM5115AMT/NOPB	TI	获取价格	Secondary Side Post Regulator/DC-DC Converter with Power-up/Power-down
LM5115AMTX	NSC	获取价格	Secondary Side Post Regulator/DC-DC Converter with Power-up/Power-down Tracking
LM5115AMTX/NOPB	NSC	获取价格	IC 2.5 A SWITCHING CONTROLLER, PDSO16, TSSOP-16, Switching Regulator or Controller
LM5115AMTX/NOPB	TI	获取价格	Secondary Side Post Regulator/DC-DC Converter with Power-up/Power-down
LM5115MM	NSC	获取价格	Secondary Side Post Regulator Controller
LM5115MMX	NSC	获取价格	Secondary Side Post Regulator Controller
LM5115MTC	TI	获取价格	LM5115 Secondary Side Post Regulator / Synchronous Buck Controller
LM5115MTC/NOPB	NSC	获取价格	IC SWITCHING CONTROLLER, PDSO16, ROHS COMPLIANT, TSSOP-16, Switching Regulator or Controll

与LM5115A相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

14
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

8
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

36
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

31

产品中心

服务支持

精选活动

关于我们

帮助中心

LM5115A

LM5115A 数据手册

与LM5115A相关器件

与LM5115A相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM5115A

LM5115A 数据手册

与LM5115A相关器件

与LM5115A相关文章

您还可以找

您在本页遇到什么问题？