LTC4301L Linear Technology, LTC4301L Datasheet
LTC4301L
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LTC4301L Summary of contents
Page 1
... DESCRIPTIO The LTC I/O card insertion into a live backplane without corruption of the data and clock busses. In addition, the LTC4301L SDAIN and SCLIN pins are compatible with systems with pull-up voltages as low as 1V. Control circuitry prevents the backplane from being connected to the card until a stop bit or a bus idle is present ...
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... LTC4301L W ABSOLUTE MAXIMUM V to GND ................................................. –0. SDAIN, SCLIN, SDAOUT, SCLOUT, CS ........ –0. READY ........................................................ –0. Operating Temperature Range LTC4301LC ............................................. LTC4301LI .......................................... – PACKAGE/ORDER www.DataSheet4U.com TOP VIEW SCLOUT SCLIN 3 6 GND 4 5 DD8 PACKAGE 8-LEAD (3mm 3mm) PLASTIC DFN ...
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... SDA, SCL Pins 3mA 2.7V SINK CC SDA, SCL Pins 1mA 2.7V SINK CC (Note 3) (Note 3) (Note 3) (Note 3) (Note 3) (Note 3) (Note 3) the pull-up resistor and V CC Characteristics section. Note 3: Determined by design, not tested in production. LTC4301L MIN TYP MAX UNITS 0 100 175 0 0.2 V 400 600 kHz 1 ...
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... LTC4301L TYPICAL PERFOR A CE CHARACTERISTICS I vs Temperature CC 4.9 4 5.5V CC 4.7 4.6 4 3.3V CC 4.4 www.DataSheet4U.com 4 2.7V CC 4.2 4.1 4.0 3.9 –80 –60 –40 – TEMPERATURE ( CTIO S CS (Pin 1): The connection sense pin is a 1.4V threshold digital input pin. For normal operation CS is grounded. Driving CS above the 1.4V threshold isolates SDAIN from SDAOUT and SCLIN from SCLOUT and asserts READY low ...
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... BLOCK DIAGRA SDAIN 6 www.DataSheet4U.com SCLIN 3 0. 1.4V W LTC4301L Supply Independent 2-Wire Bus Buffer PRECHARGE CONNECT PRECHARGE CONNECT LOGIC 95 s UVLO DELAY LTC4301L R1 R2 CONNECT 200k 200k SDAOUT SCLOUT PRECHARGE CONNECT 1.8V READY CONNECT CONNECT GND 4 4301l BD 4301lf 5 ...
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... Once the LTC4301L comes out of UVLO, it assumes that SDAIN and SCLIN have been inserted into a live system and that SDAOUT and SCLOUT are being powered up at the same time as itself ...
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... Figure 4 shows the LTC4301L in an application where all of the pins have the same length. In this case filter circuit on the I/O card with a product of 10ms provides a ...
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... Figure 3. Typical Supply Independent Applications 0.01 F 10k 10k V CC SDAOUT CARD_SDA SCLOUT CARD_SCL LTC4301L READY GND CARD 0.01 F 10k 10k V CC SDAOUT CARD_SDA SCLOUT LTC4301L CARD_SCL READY GND CARD 3V 0.01 F 10k 10k V CC SDAOUT CARD_SDA SCLOUT LTC4301L CARD_SCL READY GND 4301l F03 CARD 4301lf ...
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... BACK_SCL BACK_SDA FROM MICROPROCESSOR Figure 4. Inserting Multiple I/O Cards into a Live Backplane Using a Connector with All the Pins the Same Length W U 3.3V 10k BACKPLANE CONNECTOR LTC4301L 0.01 F 10k 10k V CC LTC4301L SCLIN SCLOUT CARD_SCL SDAIN SDAOUT CARD_SDA CS READY GND 4301l F05 CARD 4301lf 9 ...
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... LTC4301L PACKAGE DESCRIPTIO 3.5 0.05 1.65 0.05 www.DataSheet4U.com 2.15 0.05 (2 SIDES) 0.25 0.05 2.38 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS Package 8-Lead Plastic DFN (3mm 3mm) (Reference LTC DWG # 05-08-1698) 0.675 0.05 PIN 1 TOP MARK PACKAGE (NOTE 6) OUTLINE 0.200 REF 0.50 BSC NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1) 2 ...
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... REF 3.00 0.102 4.90 0.152 (.118 .004) (.193 .006) (NOTE 1.10 0.86 (.043) (.034) MAX REF 0.22 – 0.38 0.127 0.076 (.009 – .015) (.005 .003) 0.65 TYP MSOP (MS8) 0204 (.0256) BSC LTC4301L 4301lf 11 ...
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... FAX: (408) 434-0507 U System with Active Connection Control 3.3V 2k BACKPLANE CONNECTOR Fan Speed Controller in ThinSOT C Fan Speed Controller www.linear.com 0.01 F 10k 10k V CC LTC4301L SCLIN SCLOUT CARD_SCL SDAIN SDAOUT CARD_SDA 3.3V 10k CS READY GND 4301l F05 CARD COMMENTS Low Single-Ended/70 Differential, ...