參數(shù)資料
型號(hào)： LM5041SDX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Cascaded PWM Controller
中文描述： 0.01 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝： LLP-16
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 343K
代理商： LM5041SDX
LM5041
Cascaded PWM Controller
General Description
The LM5041 PWM controller contains all of the features
necessary to implement either current-fed or voltage-fed
push-pull or bridge power converters. These “Cascaded”
topologies are well suited for multiple output and higher
power applications. The LM5041’s four control outputs in-
clude: the buck stage controls (HD and LD) and the push-
pull control outputs (PUSH and PULL). Push-pull outputs are
driven at 50% nominal duty cycle at one half of the switching
frequency of the buck stage and can be configured for either
a guaranteed overlap time (for current-fed applications) or a
guaranteed both-off time (for voltage-fed applications).
Push-pull stage MOSFETs can be driven directly from the
internal gate drivers while the buck stage requires an exter-
nal driver such as the LM5102. The LM5041 includes a
high-voltage start-up regulator that operates over a wide
input range of 15V to 100V. The PWM controller is designed
for high-speed capability including an oscillator frequency
range up to 1 MHz and total propagation delays of less than
100ns. Additional features include: line Under-Voltage Lock-
out (UVLO), soft-start, an error amplifier, precision voltage
reference, and thermal shutdown.
Features
n
Internal Start-up Bias Regulator
n
Programmable Line Under-Voltage Lockout (UVLO) with
Adjustable Hysteresis
n
Current Mode Control
n
Internal Error Amplifier with Reference
n
Dual Mode Over-Current Protection
n
Leading Edge Blanking
n
Programmable Push-Pull Overlap or Dead Time
n
Internal 1.5A Push-Pull Gate Drivers
n
Programmable Soft-start
n
Programmable Oscillator with Sync Capability
n
Precision Reference
n
Thermal Shutdown
Applications
n
Telecommunication Power Converters
n
Industrial Power Converters
n
Multi-Output Power Converters
n
+42V Automotive Systems
Packages
n
TSSOP-16
n
LLP-16 (5x5 mm) Thermally Enhanced
Typical Application Circuit
20074901
Simplified Cascaded Push-Pull Power Converter
August 2003
L
2003 National Semiconductor Corporation
DS200749
www.national.com
相關(guān)PDF資料
PDF描述
LM5104 High Voltage Half-Bridge Gate Driver with Adaptive Delay
LM5104M High Voltage Half-Bridge Gate Driver with Adaptive Delay
LM5104MX High Voltage Half-Bridge Gate Driver with Adaptive Delay
LM5104SD High Voltage Half-Bridge Gate Driver with Adaptive Delay
LM5104SDX High Voltage Half-Bridge Gate Driver with Adaptive Delay
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5041SDX/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
LM5045 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Input operating range: 36V to 75V Board size: 2.28 x 1.45 x 0.5 inches
LM5045EVAL/NOPB 功能描述:電源管理IC開發(fā)工具 LM5045EVAL 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
LM5045MH 制造商:Texas Instruments 功能描述:CTLR, FULL BRIDGE, PWM, 28TSSOP 制造商:Texas Instruments 功能描述:CTLR, FULL BRIDGE, PWM, 28TSSOP; Input Voltage:100V; Supply Voltage Min:14V; Supply Voltage Max:100V; Digital IC Case Style:TSSOP; No. of Pins:28; Frequency:2MHz; Operating Temperature Min:-40C; Operating Temperature Max:125C; ;RoHS Compliant: Yes
LM5045MH/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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