參數(shù)資料
型號(hào)： LM5026MT
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Active Clamp Current Mode PWM Controller
中文描述： 3 A SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO16
封裝： TSSOP-16
文件頁(yè)數(shù)： 1/23頁(yè)
文件大?。?/td> 936K
代理商： LM5026MT
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
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
LM5030MM 100V Push-Pull Current Mode PWM Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
LM5026MTX 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
LM5026MTX/NOPB 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
LM5026SD 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
LM5026SD/NOPB 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
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