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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC4271 датащи(PDF) 32 Page - Linear Technology |
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LTC4271 датащи(HTML) 32 Page - Linear Technology |
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32 / 32 page  LTC4290/LTC4271 32 429071f LinearTechnology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2012 LT 0812 • PRINTED IN USA RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LTC4257-1 IEEE 802.3af PD Interface Controller Internal 100V, 400mA Switch, Dual Current Limit, Programmable Class LTC4263 Single IEEE 802.3af PSE Controller Internal FET Switch LTC4263-1 High Power Single PoE PSE Controller With Internal FET Switch LTC4265 IEEE 802.3at PD Interface Controller Internal 100V, 1A Switch, 2-Event Classification Recognition LTC4266 Quad IEEE 802.3at PoE PSE Controller With Programmable ICUT/ILIM, 2-Event Classification, and Port Current and Voltage Monitoring LTC4267 IEEE 802.3af PD Interface With Integrated Switching Regulator Internal 100V, 400mA Switch, Dual Inrush Current, Programmable Class LTC4267-1 IEEE 802.3af PD Interface With Integrated Switching Regulator Internal 100V, 400mA Switch, Programmable Class, 200kHz Constant Frequency PWM LTC4267-3 IEEE 802.3af PD Interface With Integrated Switching Regulator Internal 100V, 400mA Switch, Programmable Class, 300kHz Constant Frequency PWM LTC4269-1 IEEE 802.3af PD Interface With Integrated Flyback Switching Regulator 2-Event Classification, Programmable Class, Synchronous No-Opto Flyback Controller, 50kHz to 250kHz, Aux Support LTC4269-2 IEEE 802.3af PD Interface With Integrated Forward Switching Regulator 2-Event Classification, Programmable Class, Synchronous Forward Controller, 100kHz to 500kHz, Aux Support LTC4270/ LTC4271 12-Port PoE/PoE+/LTPoE++™ PSE Controller Transformer Isolation, Supports Type 1, Type 2 and LTPoE++ PDs LTC4274 Single IEEE 802.3at PoE PSE Controller With Programmable ICUT/ILIM, 2-Event Classification, and Port Current and Voltage Monitoring LTC4278 IEEE 802.3af PD Interface With Integrated Flyback Switching Regulator 2-Event Classification, Programmable Class, Synchronous No-Opto Flyback Controller, 50kHz to 250kHz, 12V Aux Support LTC4311 SMBus/ I2C Accelerator Improved I2C Rise Time, Ensures Data Integrity TYPICAL APPLICATION 0.01µF 200V 0.01µF 200V 1 2 3 4 5 6 7 8 RJ45 CONNECTOR • • 3.3V –54V 100 100 T2 T3 • • 3.3V –54V –54V ISOLATED ISOLATED GND –54V 100 100 GP0 GP1 MID RESET MSD INT AUTO SCL AD0 AD1 AD2 AD3 AD6 DGND VEE VSSK CAP1 CAP2 DND DPD CND CPD DNA AGND DPA CNA CPA OUT8 OUT1 GATE1 SENSE1 GATE8 SENSE8 XIO0 XIO1 429071 TA03 SDAIN SDAOUT LTC4271 LTC4290 VDD33 1µF 3.3V 0.1µF 1µF 1µF 2nF 2000V SMAJ58A 1µF 100V X7R 0.1µF + >47µF SYSTEM BULK CAP S1B 1 7 8 2 T1 0.25, 1% RS 0.22µF 100V X7R S1B FDMC3612 • • • • • • • • 0.01µF 200V 0.01µF 200V 0.01µF 200V 0.01µF 200V 75 75 75 75 1 2 3 4 5 6 7 8 RJ45 CONNECTOR PHY (NETWORK PHYSICAL LAYER CHIP) Complete 8-Port PSE |
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