LM5034

更新时间： 2024-11-19 04:18:27

品牌	Logo	应用领域
美国国家半导体 - NSC		控制器
页数	文件大小	规格书
29页	1068K
描述
High Voltage Dual Interleaved Current Mode Controller with Active Clamp

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LM5034 数据手册

February 2005

LM5034

High Voltage Dual Interleaved Current Mode Controller

with Active Clamp

General Description

Features

n Two independent PWM current mode controllers

n Integrated high voltage startup regulator

n Compound 2.5A main output gate drivers

n Single resistor oscillator setting to 2 MHz

The LM5034 dual current mode PWM controller contains all

the features needed to control either two independent

forward/active clamp dc/dc converters or a single high cur-

rent converter comprised of two interleaved power stages.

The two controller channels operate 180˚ out of phase

thereby reducing input ripple current. The LM5034 includes a

startup regulator that operates over a wide input range up to

100V and compound (bipolar + CMOS) gate drivers that

provide a robust 2.5A peak sink current. The adjustable

dead-time of the active clamp gate drivers and adjustable

maximum PWM duty cycle reduce stress on the primary side

MOSFET switches. Additional features include program-

mable line under-voltage lockout, cycle-by-cycle current

limit, hiccup mode fault operation with adjustable restart

delay, PWM slope compensation, soft-start, and a 2 MHz

capable oscillator with synchronization capability.

Synchronizable oscillator

n Active clamp gate driver for P-channel MOSFETs

n Adjustable gate drive overlap time

n Programmable maximum duty cycle

Maximum duty cycle fold-back at high line voltage

n Adjustable timer for hiccup mode current limiting

n Integrated slope compensation

n Adjustable line under-voltage lockout

n Independently adjustable soft-start (each regulator)

n Direct interface with opto-coupler transistor

n Thermal shutdown

Applications

n Telecommunication Power Converters

n Industrial Power Converters

n +42V Automotive Systems

Packages

n TSSOP-20

Typical Application Circuit

20136801

Dual Interleaved Regulators with Independent Outputs

DS201368

www.national.com

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与LM5034相关器件

型号	品牌	获取价格	描述	数据表
LM5034_15	TI	获取价格	High Voltage Dual Interleaved Current Mode Controller with Active Clamp
LM5034MTC	NSC	获取价格	High Voltage Dual Interleaved Current Mode Controller with Active Clamp
LM5034MTC	TI	获取价格	High Voltage Dual Interleaved Current Mode Controller with Active Clamp
LM5034MTC/NOPB	NSC	获取价格	IC 2.5 A SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO20, LEAD FREE, TSSOP-20, S
LM5034MTC/NOPB	TI	获取价格	High Voltage Dual Interleaved Current Mode Controller with Active Clamp
LM5034MTCX	NSC	获取价格	High Voltage Dual Interleaved Current Mode Controller with Active Clamp
LM5034MTCX/NOPB	TI	获取价格	High Voltage Dual Interleaved Current Mode Controller with Active Clamp
LM5035	NSC	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET Drivers
LM5035	TI	获取价格	PWM Controller With Integrated Half-Bridge and SyncFET Drivers
LM5035_15	TI	获取价格	PWM Controller With Integrated Half-Bridge and SyncFET Drivers

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