參數(shù)資料
型號(hào)： LM5035AMH-1
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO28
封裝： TSSOP-28
文件頁(yè)數(shù)： 1/30頁(yè)
文件大?。?/td> 585K
代理商： LM5035AMH-1
LM5035A/LM5035A-1
July 30, 2010
PWM Controller with Integrated Half-Bridge and SyncFET
Drivers
General Description
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 A to 100 A.
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.
Features
■ 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
2010 National Semiconductor Corporation
300341
www.national.com
LM5035A/LM5035A-1
PWM
Controller
with
Integrated
Half-Bridge
and
SyncFET
Drivers
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5035AMH-1/NOPB 功能描述:電壓模式 PWM 控制器 100V Hb Pwm W/Driver RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
LM5035AMHX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PWM Controller with Integrated Half-Bridge and SyncFET PWM Controller with Integrated Half-Bridge and SyncFET
LM5035AMHX/NOPB 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
LM5035AMHX-1 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PWM Controller with Integrated Half-Bridge and SyncFET PWM Controller with Integrated Half-Bridge and SyncFET
LM5035AMHX-1/NOPB 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
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