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LM5045

具有集成 MOSFET 驅(qū)動(dòng)器的全橋接 PWM 控制器; ? Highest Integration Controller for Small Form Factor, High-Density Power Converters\n? High-Voltage Start-Up Regulator\n? Intelligent Sync Rectifier Start-Up Allows Linear Turnon Into Prebiased Loads\n? Synchronous Rectifiers Disabled in UVLO mode and Hiccup Mode\n? Two Independent, Programmable Synchronous Rectifier Dead-Time Adjustments\n? Four High-Current 2-A Bridge Gate Drivers\n? Wide-Bandwidth Optocoupler Interface\n? Configurable for Either Current Mode or Voltage Mode Control\n? Dual-Mode Overcurrent Protection\n? Resistor Programmed 2-MHz Oscillator\n? Programmable Line UVLO and OVP;

The LM5045 PWM controller contains all of the features necessary to implement full-bridge topology power converters using either current mode or voltage mode control. This device is intended to operate on the primary side of an isolated DC-DC converter with input voltage up to 100 V. This highly integrated controller-driver provides dual 2-A high-side and low-side gate drivers for the four external bridge MOSFETs plus control signals for the secondary-side synchronous rectifier MOSFETs. External resistors program the leading and trailing edge dead-time between the main and synchronous rectifier control signals. Intelligent start-up of the synchronous rectifiers allows monotonic turnon of the power converter even with prebias load conditions. Additional features include cycle-by-cycle current limiting, hiccup mode restart, programmable soft-start, synchronous rectifier soft-start, and a 2-MHz capable oscillator with synchronization capability and thermal shutdown.\n \n

TITexas Instruments

德州儀器美國(guó)德州儀器公司

LM5045

Input operating range: 36V to 75V Board size: 2.28 x 1.45 x 0.5 inches

NSCNational Semiconductor (TI)

美國(guó)國(guó)家半導(dǎo)體美國(guó)國(guó)家半導(dǎo)體公司

LM5045

Full-Bridge PWM Controller with Integrated MOSFET Drivers

TITexas Instruments

德州儀器美國(guó)德州儀器公司

LM5045

Full-Bridge PWM Controller With Integrated MOSFET Drivers

TITexas Instruments

德州儀器美國(guó)德州儀器公司

LM5045

Full-Bridge PWM Controller with Integrated MOSFET Drivers

TITexas Instruments

德州儀器美國(guó)德州儀器公司

LM5045_15

Full-Bridge PWM Controller With Integrated MOSFET Drivers

TITexas Instruments

德州儀器美國(guó)德州儀器公司

LM5045MH

Full-Bridge PWM Controller with Integrated MOSFET Drivers

TITexas Instruments

德州儀器美國(guó)德州儀器公司

LM5045MH

Full-Bridge PWM Controller with Integrated MOSFET Drivers

TITexas Instruments

德州儀器美國(guó)德州儀器公司

LM5045MH/NOPB

Full-Bridge PWM Controller With Integrated MOSFET Drivers

TITexas Instruments

德州儀器美國(guó)德州儀器公司

LM5045MHSLASHNOPB

Full-Bridge PWM Controller With Integrated MOSFET Drivers

TITexas Instruments

德州儀器美國(guó)德州儀器公司

技術(shù)參數(shù)

  • Control method：

    CurrentVoltage

  • VCC(Min)(V)：

    10

  • VCC(Max)(V)：

    14

  • Frequency(Max)(kHz)：

    2000

  • UVLO thresholds on/off(V)：

    Programmable/1.25V

  • Duty cycle(Max)(%)：

    50

  • Gate drive(Typ)(A)：

    1.52

  • Features：

    Current LimitingHV Start-upMulti-topologySR LogicSynchronization Pin

  • Rating：

    Catalog

  • Operating temperature range(C)：

    -40 to 125

  • Package Group：

    HTSSOP

  • Package size：

    mm2

  • 28)28WQFN：

    25 mm2

供應(yīng)商型號(hào)品牌批號(hào)封裝庫(kù)存備注價(jià)格
TI
24+
HTSSOP|28
70230
免費(fèi)送樣原盒原包現(xiàn)貨一手渠道聯(lián)系
 詢價(jià)
TI德州儀器
22+
24000
原裝正品現(xiàn)貨,實(shí)單可談,量大價(jià)優(yōu)
 詢價(jià)
TI/德州
2018+
Catalog
32500
德州代理承諾銷售原裝正品公司可開正規(guī)17%增值稅票
 詢價(jià)
23+
NA
6800
原裝正品,力挺實(shí)單
 詢價(jià)
24+
6000
全新原廠原裝正品現(xiàn)貨,低價(jià)出售,實(shí)單可談
 詢價(jià)
NS
2016+
HTSSOP28
2565
只做原裝,假一罰十,公司可開17%增值稅發(fā)票!
 詢價(jià)
NS
17+
TSSOP
6200
100%原裝正品現(xiàn)貨
 詢價(jià)
TI/NS
24+
HTSSOP28
4652
公司原廠原裝現(xiàn)貨假一罰十!特價(jià)出售!強(qiáng)勢(shì)庫(kù)存!
 詢價(jià)
TI/BB
2016+
TSSOP
6526
只做原裝正品!假一賠十!只要有上一定有貨的!
 詢價(jià)
TI
24+
SMD
85450
TI一級(jí)代理商原裝進(jìn)口現(xiàn)貨
 詢價(jià)
更多LM5045供應(yīng)商 更新時(shí)間2025-7-29 17:06:00

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