LM5035AMHX-1

更新时间： 2024-01-02 02:44:29

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
30页	575K
描述
PWM Controller with Integrated Half-Bridge and SyncFET PWM Controller with Integrated Half-Bridge and SyncFET

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LM5035AMHX-1 数据手册

July 30, 2010

LM5035A/LM5035A-1

PWM Controller with Integrated Half-Bridge and SyncFET

Drivers

General Description

Features

The LM5035A 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 LM5035A is a functional variant of the

LM5035 half-bridge PWM controller. The VCC current limit

threshold has been increased to 35 mA. The soft start and

soft start currents have been increased from 50 µA to 100 µA.

The BST UV threshold has been lowered to less than the VCC

UV threshold. The ratio of the T1 and T2 delays on the SR1

and SR2 outputs has been increased from 2:1 to 3:1. The

floating high-side gate driver is capable of operating with sup-

ply voltages up to 105V. Both the high-side and low-side gate

drivers are capable of 2A peak. An internal high voltage start-

up regulator is included, along with programmable line un-

dervoltage lockout (UVLO) and overvoltage protection (OVP).

The oscillator is programmed with a single resistor to fre-

quencies up to 2MHz. The oscillator can also be synchronized

to an external clock. A current sense input and a pro-

grammable timer provide cycle-by-cycle current limit and ad-

justable hiccup mode overload protection. The differences

between LM5035, LM5035A, LM5035B, and LM5035C are

summarized in Table 2.

105V / 2A Half-Bridge Gate Drivers

■

Synchronous Rectifier Control Outputs with

Programmable Delays

High Voltage (105V) Start-up Regulator

■

Voltage mode Control with Line Feed-Forward and Volt •

Second Limiting

Resistor Programmed, 2MHz Capable Oscillator

■

Patent Pending Oscillator Synchronization

Programmable Line Under-Voltage Lockout

Line 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

5V Reference Output

Packages

TSSOP-20EP

■

LLP-24 (4mm x 5mm)

TSSOP-28EP (LM5035A-1 only)

Simplified Application Diagram

30034101

300341

www.national.com

12 3 4 5 6 7...30

中文翻译

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与LM5035AMHX-1相关器件

型号	品牌	获取价格	描述	数据表
LM5035AMHX-1/NOPB	TI	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET Drivers 28-HTSSOP
LM5035ASQ	NSC	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET PWM Controller with Integrated Half
LM5035ASQ/NOPB	TI	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET Drivers 24-WQFN -40 to 125
LM5035ASQX	NSC	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET PWM Controller with Integrated Half
LM5035ASQX/NOPB	TI	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET Drivers 24-WQFN -40 to 125
LM5035B	TI	获取价格	LM5035B PWM Controller with Integrated Half-Bridge and SyncFET Drivers
LM5035B	NSC	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET Drivers
LM5035BMH	NSC	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET Drivers
LM5035BMH/NOPB	TI	获取价格	LM5035B PWM Controller with Integrated Half-Bridge and SyncFET Drivers
LM5035BMHX	NSC	获取价格	PWM Controller with Integrated Half-Bridge and SyncFET Drivers

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