參數(shù)資料
型號(hào)： LM5045SQ
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 540 kHz SWITCHING FREQ-MAX, QCC28
封裝： 5 X 5 MM, LLP-28
文件頁(yè)數(shù)： 22/28頁(yè)
文件大?。?/td> 610K
代理商： LM5045SQ
Top View
30145403
LLP-28 Package
Ordering Information
Order Number
Package Type
NSC Package Drawing
Supplied As
LM5045MH
eTSSOP-28
MXA28A
Rail of 48 Units
LM5045MHX
eTSSOP-28
MXA28A
Tape and Reel of 2500 Units
LM5045SQ
LLP-28
SQA28A
Available Soon
LM5045SQX
LLP-28
SQA28A
Available Soon
Pin Descriptions
TSSOP
Pin
LLP Pin
Name
Description
Application Information
1
25
UVLO
Line Under-Voltage Lockout
An external voltage divider from the power source sets the
shutdown and standby comparator levels. When UVLO reaches
the 0.4V threshold the VCC and REF regulators are enabled. At
the 1.25V threshold, the SS pin is released and the controller
enters the active mode. Hysteresis is set by an internal current
sink that pulls 20A from the external resistor divider.
2
26
OVP/OTP Over Voltage Protection
An external voltage divider from the input power supply sets the
shutdown level during an over-voltage condition. Alternatively, an
external NTC thermistor voltage divider can be used to set the
shutdown temperature. The threshold is 1.25V. Hysteresis is set
by an internal current that sources 20 A of current into the
external resistor divider.
3
www.national.com
LM5045
相關(guān)PDF資料
PDF描述
LM5046SQ SWITCHING CONTROLLER, 540 kHz SWITCHING FREQ-MAX, QCC28
LM5046MHX SWITCHING CONTROLLER, 540 kHz SWITCHING FREQ-MAX, PDSO28
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5045SQ/NOPB 功能描述:電流型 PWM 控制器 Full-Bridge PWM Cntrlr 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
LM5045SQX 制造商:TI 制造商全稱:Texas Instruments 功能描述:Full-Bridge PWM Controller with Integrated MOSFET Drivers
LM5045SQX/NOPB 功能描述:IC PWM CTRLR FULL BRIDG 28LLP RoHS:是 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān) 系列:PowerWise® 標(biāo)準(zhǔn)包裝:1 系列:FPS™ 輸出隔離:隔離 頻率范圍:61kHz ~ 73kHz 輸入電壓:8 V ~ 26 V 輸出電壓:650V 功率（瓦特）:12W 工作溫度:-40°C ~ 115°C 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-MDIP 包裝:Digi-Reel® 其它名稱:FSL206MRBNFSDKR
LM5046 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Input operating range: 36V to 75V Line UVLO (34V/32V on/off)
LM5046_1 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Input operating range: 36V to 75V Line UVLO (34V/32V on/off)
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