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SG1844Y

CURRENT MODE PWM CONTROLLER

DESCRIPTION TheSG1844/45familyofcontrolICsprovidesallthenecessaryfeaturestoimplementoff-linefixedfrequency,current-modeswitchingpowersupplieswithaminimumnumberofexternalcomponents.Current-modearchitecturedemonstratesimprovedlineregulation,improvedloadregulation,

MicrosemiMicrosemi Corporation

美高森美美高森美公司

SG1844Y

Space-grade Power Management;

Features: ? OPTIMIZED FOR OFF-LINE CONTROL ? LOW START-UP CURRENT (<1mA) ? AUTOMATIC FEED FORWARD COMPENSATION ? TRIMMED OSCILLATOR DISCHARGE CURRENT ? PULSE-BY-PULSE CURRENT LIMITING ? ENHANCED LOAD RESPONSE CHARACTERISTICS ? HYSTERESIS (SG1844 only) ? DOUBLE PULSE SUPPRESSION ? HIGH-CURRENT TOTEM-POLE OUTPUT ? INTERNALLY TRIMMED BANDGAP REFERENCE ? 500kHz OPERATION ? UNDERVOLTAGE LOCKOUT SG1844 - 16 volts SG1845 - 8.4 volts ? LOW SHOOT-THROUGH CURRENT <75mA OVER TEMPERATURE The SG1844/45 family of control ICs provides all the necessary features to implement off-line fixed frequency, current-mode switching power supplies with a minimum number of external components. Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-by-pulse current limiting and inherent protection of the power supply output switch. The bandgap reference is trimmed to ±1% over temperature. Oscillator discharge current is trimmed to less than ±10%. The SG1844/45 has under-voltage lockout, current-limiting circuitry and start-up current of less than 1mA. The totem-pole output is optimized to drive the gate of a power MOSFET. The output is low in the off state to provide direct interface to an N-channel device. Both operate up to a maximum duty cycle range of zero to <50% due to an internal toggle flip-flop which blanks the output off every other clock cycle. The SG1844/45 is specified for operation over the full military ambient temperature range of -55°C to 125°C. The SG2844/45 is specified for the industrial range of -25°C to 85°C, and the SG3844/45 is designed for the commercial range of 0°C to 70°C.

MicrochipMicrochip Technology

微芯科技微芯科技股份有限公司

SG1844Y

CURRENT MODE PWM CONTROLLER

MicrosemiMicrosemi Corporation

美高森美美高森美公司

SG1844Y

Package：8-CDIP（0.300"，7.62mm）；包裝：管件 類別：集成電路（IC） AC DC 轉(zhuǎn)換器，離線開(kāi)關(guān) 描述：IC OFFLINE SWITCH 8CDIP

MicrochipMicrochip Technology

微芯科技微芯科技股份有限公司

SG1844Y/883B

CURRENT MODE PWM CONTROLLER

DESCRIPTION TheSG1844/45familyofcontrolICsprovidesallthenecessaryfeaturestoimplementoff-linefixedfrequency,current-modeswitchingpowersupplieswithaminimumnumberofexternalcomponents.Current-modearchitecturedemonstratesimprovedlineregulation,improvedloadregulation,

MicrosemiMicrosemi Corporation

美高森美美高森美公司

SG1844Y/DESC

CURRENT MODE PWM CONTROLLER

DESCRIPTION TheSG1844/45familyofcontrolICsprovidesallthenecessaryfeaturestoimplementoff-linefixedfrequency,current-modeswitchingpowersupplieswithaminimumnumberofexternalcomponents.Current-modearchitecturedemonstratesimprovedlineregulation,improvedloadregulation,

MicrosemiMicrosemi Corporation

美高森美美高森美公司

SG1844Y-883B

Space-grade Power Management;

Features: ? OPTIMIZED FOR OFF-LINE CONTROL ? LOW START-UP CURRENT (<1mA) ? AUTOMATIC FEED FORWARD COMPENSATION ? TRIMMED OSCILLATOR DISCHARGE CURRENT ? PULSE-BY-PULSE CURRENT LIMITING ? ENHANCED LOAD RESPONSE CHARACTERISTICS ? HYSTERESIS (SG1844 only) ? DOUBLE PULSE SUPPRESSION ? HIGH-CURRENT TOTEM-POLE OUTPUT ? INTERNALLY TRIMMED BANDGAP REFERENCE ? 500kHz OPERATION ? UNDERVOLTAGE LOCKOUT SG1844 - 16 volts SG1845 - 8.4 volts ? LOW SHOOT-THROUGH CURRENT <75mA OVER TEMPERATURE The SG1844/45 family of control ICs provides all the necessary features to implement off-line fixed frequency, current-mode switching power supplies with a minimum number of external components. Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-by-pulse current limiting and inherent protection of the power supply output switch. The bandgap reference is trimmed to ±1% over temperature. Oscillator discharge current is trimmed to less than ±10%. The SG1844/45 has under-voltage lockout, current-limiting circuitry and start-up current of less than 1mA. The totem-pole output is optimized to drive the gate of a power MOSFET. The output is low in the off state to provide direct interface to an N-channel device. Both operate up to a maximum duty cycle range of zero to <50% due to an internal toggle flip-flop which blanks the output off every other clock cycle. The SG1844/45 is specified for operation over the full military ambient temperature range of -55°C to 125°C. The SG2844/45 is specified for the industrial range of -25°C to 85°C, and the SG3844/45 is designed for the commercial range of 0°C to 70°C.

MicrochipMicrochip Technology

微芯科技微芯科技股份有限公司

SG1844Y-DESC

Space-grade Power Management;

Cross reference to 5962-8670403PA, 5962-8670403, 8670403Features: ? OPTIMIZED FOR OFF-LINE CONTROL ? LOW START-UP CURRENT (<1mA) ? AUTOMATIC FEED FORWARD COMPENSATION ? TRIMMED OSCILLATOR DISCHARGE CURRENT ? PULSE-BY-PULSE CURRENT LIMITING ? ENHANCED LOAD RESPONSE CHARACTERISTICS ? HYSTERESIS (SG1844 only) ? DOUBLE PULSE SUPPRESSION ? HIGH-CURRENT TOTEM-POLE OUTPUT ? INTERNALLY TRIMMED BANDGAP REFERENCE ? 500kHz OPERATION ? UNDERVOLTAGE LOCKOUT SG1844 - 16 volts SG1845 - 8.4 volts ? LOW SHOOT-THROUGH CURRENT <75mA OVER TEMPERATURE The SG1844/45 family of control ICs provides all the necessary features to implement off-line fixed frequency, current-mode switching power supplies with a minimum number of external components. Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-by-pulse current limiting and inherent protection of the power supply output switch. The bandgap reference is trimmed to ±1% over temperature. Oscillator discharge current is trimmed to less than ±10%. The SG1844/45 has under-voltage lockout, current-limiting circuitry and start-up current of less than 1mA. The totem-pole output is optimized to drive the gate of a power MOSFET. The output is low in the off state to provide direct interface to an N-channel device. Both operate up to a maximum duty cycle range of zero to <50% due to an internal toggle flip-flop which blanks the output off every other clock cycle. The SG1844/45 is specified for operation over the full military ambient temperature range of -55°C to 125°C. The SG2844/45 is specified for the industrial range of -25°C to 85°C, and the SG3844/45 is designed for the commercial range of 0°C to 70°C.

MicrochipMicrochip Technology

微芯科技微芯科技股份有限公司

SG1844YSLASH883B

CURRENT MODE PWM CONTROLLER

DESCRIPTION TheSG1844/45familyofcontrolICsprovidesallthenecessaryfeaturestoimplementoff-linefixedfrequency,current-modeswitchingpowersupplieswithaminimumnumberofexternalcomponents.Current-modearchitecturedemonstratesimprovedlineregulation,improvedloadregulation,

MicrosemiMicrosemi Corporation

美高森美美高森美公司

SG1844YSLASHDESC

CURRENT MODE PWM CONTROLLER

DESCRIPTION TheSG1844/45familyofcontrolICsprovidesallthenecessaryfeaturestoimplementoff-linefixedfrequency,current-modeswitchingpowersupplieswithaminimumnumberofexternalcomponents.Current-modearchitecturedemonstratesimprovedlineregulation,improvedloadregulation,

MicrosemiMicrosemi Corporation

美高森美美高森美公司

產(chǎn)品屬性

  • 產(chǎn)品編號(hào)：

    SG1844Y

  • 制造商：

    Microchip Technology

  • 類別：

    集成電路（IC） > AC DC 轉(zhuǎn)換器，離線開(kāi)關(guān)

  • 包裝：

    管件

  • 輸出隔離：

    隔離

  • 內(nèi)部開(kāi)關(guān)：

    無(wú)

  • 電壓 - 供電 (Vcc/Vdd)：

    10V ~ 30V

  • 占空比：

    48%

  • 頻率 - 開(kāi)關(guān)：

    100Hz ~ 500kHz

  • 故障保護(hù)：

    限流

  • 控制特性：

    頻率控制

  • 工作溫度：

    -55°C ~ 125°C（TA）

  • 封裝/外殼：

    8-CDIP（0.300"，7.62mm）

  • 供應(yīng)商器件封裝：

    8-CDIP

  • 安裝類型：

    通孔

  • 描述：

    IC OFFLINE SWITCH 8CDIP

供應(yīng)商型號(hào)品牌批號(hào)封裝庫(kù)存備注價(jià)格
LINFINITY
25+
DIP
1800
⊙⊙新加坡大量現(xiàn)貨庫(kù)存,深圳常備現(xiàn)貨!歡迎查詢!⊙
 詢價(jià)
LINFINITY
23+
CERDIP-8
7000
絕對(duì)全新原裝!100%保質(zhì)量特價(jià)!請(qǐng)放心訂購(gòu)!
 詢價(jià)
LINFIN
24+
DIP-8
107
詢價(jià)
TI
2020+
CDIP8
2000
百分百原裝正品 真實(shí)公司現(xiàn)貨庫(kù)存 本公司只做原裝 可
 詢價(jià)
LINFINTY
97+
DIP/8
150
原裝現(xiàn)貨海量庫(kù)存歡迎咨詢
 詢價(jià)
LINFINITY
24+
CDIP8
3629
原裝優(yōu)勢(shì)!房間現(xiàn)貨!歡迎來(lái)電!
 詢價(jià)
LINFINI
23+
DIP-8P
8650
受權(quán)代理!全新原裝現(xiàn)貨特價(jià)熱賣!
 詢價(jià)
SG
CDIP8
1959
專營(yíng)CAN鐵帽CDIP
 詢價(jià)
Microsemi Corporation
24+
36500
一級(jí)代理/放心采購(gòu)
 詢價(jià)
Microsemi
1942+
N/A
908
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 詢價(jià)
更多SG1844Y供應(yīng)商 更新時(shí)間2025-7-30 11:02:00

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