LTC4303 LINER [Linear Technology], LTC4303 Datasheet
LTC4303
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LTC4303 Summary of contents
Page 1
... When driven high ENABLE allows the LTC4303 to connect after a stop bit or bus idle occurs. Driving ENABLE low breaks the connection between SDAIN and SDAOUT, SCLIN and SCLOUT. READY is an open drain output that indicates when the backplane and card sides are connected together ...
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... LTC4303 ABSOLUTE AXI U RATI GND .................................................. –0. SDAIN, SCLIN, SDAOUT, SCLOUT, READY, ENABLE ........................................... –0. Operating Temperature LTC4303C ................................................ 0°C to 70°C LTC4303I .............................................–40°C to 85°C U PACKAGE/ORDER I TOP VIEW ENABLE 1 SCLOUT 2 9 SCLIN 3 GND 4 DD PACKAGE 8-LEAD (3mm × 3mm) PLASTIC DFN = 125° ...
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... V CC Characteristics section. Note 5: I varies with temperature and V PULLUPAC the Typical Performance Characteristics section. Note 6: Guaranteed by design, not tested in production. Note 7: I test performed with connection circuitry active. CC LTC4303 MIN TYP MAX UNITS 50 mV 300 ● ...
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... LTC4303 W U TYPICAL PERFOR Temperature CC 6 5.5V CC 6.0 5.8 5.6 5 2.7V CC 5.2 5.0 – 100 –25 TEMPERATURE (°C) 4303 G01 Connection Circuitry V 250 200 V = 5.5V CC 150 100 1000 3000 5000 R PULLUP 4 CE CHARACTERISTICS Input-Output t vs Temperature PHL 140 100pF IN OUT 10k ...
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... SDA bus on the card. V (Pin 8): Supply Voltage Input. Place a bypass capacitor least 0.01µF close to V Exposed Pad (Pin 9, DFN Only): Exposed pad may be left open or connected to the ground plane. LTC4303 2-Wire Bus Buffer with Stuck Bus Protection 3.5mA CONNECT PC_CONNECT PC_CONNECT PRECHARGE 3.5mA ...
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... I/O card. Once the LTC4303 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 ...
Page 7
... PHL tion circuitry for falling waveforms. Figure 2 shows the falling edge waveforms. An external driver pulls down the voltage on the side with 50pF capacitance; LTC4303 pulls down the voltage on the opposite side with a delay of 80ns. This delay is always positive and is a function of supply voltage, temperature and the pull-up resistors and equivalent bus capacitances on both sides of the bus ...
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... Figure 4 shows the LTC4303 in a PCI application where all of the pins have the same length. In this case fi lter circuit on the I/O card with a product of 10ms provides a fi ...
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... U APPLICATIO S I FOR ATIO BACKPLANE CONNECTOR BACKPLANE 10k 10k BD_SEL SDA SCL Figure 3. Inserting Multiple I/O Cards into a Live Backplane Using the LTC4303 in a CompactPCI System W U STAGGERED CONNECTOR POWER SUPPLY HOT SWAP R3 10k CARD ENABLE/DISABLE ENABLE SDAIN SCLIN POWER SUPPLY ...
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... LTC4303 U U APPLICATIO S I FOR ATIO BACKPLANE CONNECTOR BACKPLANE 10k 10k SDA SCL Figure 4. Inserting Multiple I/O Cards into a Live Backplane Using the LTC4303 in a PCI System SHELF MANAGER R1 R2 10k 10k V ENABLE SDAOUT ShMC LTC4303 SCLOUT I/O PERIPHERAL CARD 1 ...
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... MS8 Package 8-Lead Plastic MSOP (Reference LTC DWG # 05-08-1660) DETAIL “A” 0.254 (.010) 0° – 6° TYP GAUGE PLANE 0.53 ± 0.152 (.021 ± .006) DETAIL “A” 0.18 (.007) LTC4303 R = 0.115 TYP 5 8 3.00 ±0.10 1.65 ± 0.10 (4 SIDES) (2 SIDES 0.25 ± 0.05 0.75 ±0.05 0.50 BSC 2.38 ± ...
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... Stuck Bus Recovery ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 12 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 3. LTC4303 10k SCLIN SDAIN ENABLE GND R5 100k BACKPLANE STAGGERED CARD CONNECTOR CONNECTOR Figure 6. System with Active Connection Control ...