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參數(shù)資料
| 型號(hào)： | LM5026 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Active Clamp Current Mode PWM Controller |
| 中文描述： | 有源鉗位電流模式PWM控制器 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大?。?/td> | 936K |
| 代理商： | LM5026 |
LM5026
Active Clamp Current Mode PWM Controller
General Description
The LM5026 PWM controller contains all of the features
necessary to implement power converters utilizing the active
clamp / reset technique with current mode control. With the
active clamp technique, higher efficiencies and greater
power densities can be realized compared to conventional
catch winding or RDC clamp / reset techniques. Two control
outputs are provided, the main power switch control
(OUT_A) and the active clamp switch control (OUT_B). The
device can be configured to control either a P-Channel or
N-Channel clamp switch. The main gate driver features a
compound
configuration,
consisting
of
both
and Bipolar devices, providing superior gate drive character-
istics. The LM5026 can be configured to operate with bias
voltages over a wide input range of 8V to 100V. Additional
features include programmable maximum duty cycle, line
under-voltage lockout, cycle-by-cycle current limit, hiccup
mode fault operation with adjustable timeout delay, PWM
slope compensation, soft-start, 1MHz capable oscillator with
synchronization input / output capability, precision reference
and thermal shutdown.
MOS
Features
n
Current Mode Control
n
Internal 100V Start-up Bias Regulator
n
3A Compound Main Gate Driver
n
High Bandwidth Opto-coupler Interface
n
Programmable Line Under-Voltage Lockout (UVLO) with
Adjustable Hysteresis
n
Versatile Dual Mode Over-Current Protection with hiccup
delay timer
n
Programmable Overlap or Deadtime between the Main
and Active Clamp Outputs
n
Programmable Maximum Duty Cycle Clamp
n
Programmable Soft-start
n
Leading Edge Blanking
n
Resistor Programmed 1MHz Capable Oscillator
n
Oscillator Sync I/O Capability
n
Precision 5V Reference
Packages
n
TSSOP-16
n
LLP-16 (5x5 mm) Thermally Enhanced (
Available
Soon
)
Typical Application Circuit
20147901
Simplified Forward Power Converter with Active Clamp Reset
August 2005
L
2005 National Semiconductor Corporation
DS201479
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM5026MT | Active Clamp Current Mode PWM Controller |
| LM5026MTX | Active Clamp Current Mode PWM Controller |
| LM5026SD | Active Clamp Current Mode PWM Controller |
| LM5026SDX | Active Clamp Current Mode PWM Controller |
| LM5030 | 100V Push-Pull Current Mode PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM5026_09 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Active Clamp Current Mode PWM Controller |
| LM5026EVAL | 功能描述:BOARD EVALUATION LM5026 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線）SMPS 系列:PowerWise® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM5026EVAL/NOPB | 功能描述:電源管理IC開發(fā)工具 LM5026 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM5026MT | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| LM5026MT/NOPB | 功能描述:電流型 PWM 控制器 Current Mode Active Reset RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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