參數(shù)資料
型號(hào)： LM5020SDX-1
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 100V Current Mode PWM Controller
中文描述： SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO8
封裝： 4 X 4 MM, LLP-8
文件頁數(shù)： 1/12頁
文件大?。?/td> 229K
代理商： LM5020SDX-1
LM5020
100V Current Mode PWM Controller
General Description
The LM5020 high voltage pulse-width-modulation (PWM)
controller contains all of the features needed to implement
single ended primary power converter topologies. Output
voltage regulation is based on current-mode control, which
eases the design of loop compensation while providing in-
herent line feed-forward. The LM5020 includes a high-
voltage start-up regulator that operates over a wide input
range up to 100V. The PWM controller is designed for high
speed capability including an oscillator frequency range to
1MHz and total propagation delays less than 100ns. Addi-
tional features include an error amplifier, precision reference,
line under-voltage lockout, cycle-by-cycle current limit, slope
compensation, softstart, oscillator synchronization capability
and thermal shutdown. The controller is available in both
MSOP-10 and LLP-10 packages.
Features
n
Internal Start-up Bias Regulator
n
Error Amplifier
n
Precision Voltage Reference
n
Programmable Softstart
n
1A Peak Gate Driver
n
Maximum Duty Cycle Limiting (80% for LM5020-1 or
50% for LM5020-2)
n
Programmable Line Under Voltage Lockout (UVLO) with
Adjustable Hysteresis
n
Cycle-by-Cycle Over-Current Protection
n
Slope Compensation (LM5020-1)
n
Programmable Oscillator Frequency with
Synchronization Capability
n
Current Sense Leading Edge Blanking
n
Thermal Shutdown Protection
Packages
n
MSOP-10
n
LLP-10 (4 mm x 4 mm)
Connection Diagram
Top View
20095001
10-Lead MSOP, LLP
Ordering Information
Order Number
LM5020MM-1
LM5020MMX-1
LM5020SD-1
LM5020SDX-1
LM5020MM-2
LM5020MMX-2
LM5020SD-2
LM5020SDX-2
Description
NSC Package Drawing
MUB-10A
MUB-10A
SDC-10A
SDC-10A
MUB-10A
MUB-10A
SDC-10A
SDC-10A
Supplied As
MSOP, 80% Duty Cycle Limit
MSOP, 80% Duty Cycle Limit
LLP, 80% Duty Cycle Limit
LLP, 80% Duty Cycle Limit
MSOP, 50% Duty Cycle Limit
MSOP, 50% Duty Cycle Limit
LLP, 50% Duty Cycle Limit
LLP, 50% Duty Cycle Limit
1000 Units on Tape and Reel
3500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
1000 Units on Tape and Reel
3500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
October 2004
L
2004 National Semiconductor Corporation
DS200950
www.national.com
相關(guān)PDF資料
PDF描述
LM5020SDX-2 100V Current Mode PWM Controller
LM5021MM-1 AC-DC Current Mode PWM Controller
LM5021MM-2 AC-DC Current Mode PWM Controller
LM5021NA-1 AC-DC Current Mode PWM Controller
LM5021NA-2 AC-DC Current Mode PWM Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5020SDX-1/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
LM5020SDX-2 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
LM5020SDX-2/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
LM5021 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC-DC Current Mode PWM Controller
LM5021-1QDGKRQ1 功能描述:Converter Offline Flyback Topology 150kHz ~ 1MHz 8-VSSOP 制造商:texas instruments 系列:汽車級(jí)，AEC-Q100 包裝:剪切帶（CT） 零件狀態(tài):有效 輸出隔離:隔離 內(nèi)部開關(guān):無 電壓 - 擊穿:- 拓?fù)?回掃 電壓 - 啟動(dòng):20V 電壓 - 電源（Vcc/Vdd）:8 V ~ 30 V 占空比:80% 頻率 - 開關(guān):150kHz ~ 1MHz 功率（W）:- 故障保護(hù):限流，過載 控制特性:頻率控制，軟啟動(dòng)，同步 工作溫度:-40°C ~ 125°C （TJ） 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商器件封裝:8-VSSOP 安裝類型:表面貼裝 標(biāo)準(zhǔn)包裝:1
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