LTC4300-1IMS8#PBF Linear Technology, LTC4300-1IMS8#PBF Datasheet
LTC4300-1IMS8#PBF
Specifications of LTC4300-1IMS8#PBF
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LTC4300-1IMS8#PBF Summary of contents
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... The LTC4300-2 also replaces the READY pin with a digital CMOS input pin, ACC, which enables and disables the rise-time accelerator currents. The LTC4300 is available in a small 8-pin MSOP package 24k ...
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... CC2 SDAIN, SCLIN, SDAOUT, SCLOUT ................. – 0 READY, ENABLE (LTC4300-1) ....................... – 0 ACC (LTC4300-2) .......................................... – 0 Operating Temperature Range LTC4300-1C/LTC4300-2C ....................... LTC4300-1I/LTC4300-2I .................... – Storage Temperature Range ................. – 125 C Lead Temperature (Soldering, 10 sec).................. 300 C ELECTRICAL CHARACTERISTICS temperature range, otherwise specfications are at T SYMBOL PARAMETER Power Supply ...
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... The denotes the specifications which apply over the full operating = 2.7V to 5.5V, unless otherwise noted CONDITIONS Positive Transition on SDA,SCL 2.7V, CC Slew Rate = 1.25V/ s (Note 2), LTC4300-2, ACC = 0.7 • 2.7V CC2 CC2 LTC4300-2 LTC4300-2 LTC4300-2 LTC4300-2 10k SDA, SCL 3.3V (Note 3), ...
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... LTC4300-1/LTC4300 TYPICAL PERFOR A CE CHARACTERISTICS I vs Temperature (LTC4300-1) CC 3.0 2 5.5V CC 2.8 2.7 2.6 2 2.7V CC 2.4 2.3 2.2 –50 – TEMPERATURE ( Temperature PULLUPAC 2. –50 – TEMPERATURE ( 100 4300-1/2 G01 75 100 4300-1/2 G03 Input – Output t vs Temperature PHL (LTC4300-1) 100 3.3V ...
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... ENABLE/V (Pin 1): Chip Enable Pin/Card Supply Volt- CC2 age. For the LTC4300-1, this is a digital CMOS threshold input pin. Grounding this pin puts the part in a low current (<1 A) mode. It also disables the rise-time accelerators, disables the bus precharge circuitry, drives READY low, isolates SDAIN from SDAOUT and isolates SCLIN from SCLOUT ...
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... LTC4300-1/LTC4300-2 W BLOCK DIAGRA (LTC4300-1) SLEW RATE DECTECTOR SDAIN 6 CONNECT SLEW RATE DECTECTOR SCLIN 3 CONNECT + – + 0.55V / – CC 0.45V CC UVLO 95 s DELAY ENABLE 2-Wire Bus Buffer and Hot Swap Controller 2mA 2mA BACKPLANE-TO-CARD CONNECTION CONNECT ENABLE 100k RCH1 1V PRECHARGE 100k RCH2 2mA ...
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... Bus Buffer and Hot Swap Controller 2mA 2mA BACKPLANE-TO-CARD CONNECTION CONNECT 100k RCH1 1V PRECHARGE 100k RCH2 2mA 2mA BACKPLANE-TO-CARD CONNECTION STOP BIT AND BUS IDLE 0.5 A 20pF 0.5pF LTC4300-1/LTC4300-2 SLEW RATE DECTECTOR CONNECT 100k RCH3 100k RCH4 SLEW RATE DECTECTOR + CONNECT – + – CONNECT CONNECT 4300-2 BD ...
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... I/O card. Once the LTC4300 comes out of UVLO, it assumes that SDAIN and SCLIN have been hot swapped into a live system and that SDAOUT and SCLOUT are being powered up at the same time as itself ...
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... These allow the user to choose weaker DC pull-up currents on the bus, reducing power consumption while still meet- ing system rise-time requirements. During positive bus transitions, the LTC4300 switches in 2mA of current to quickly slew the SDA and SCL lines once their DC voltages exceed 0.6V. Using a general rule of 20pF of capacitance ...
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... Placing a LTC4300 on the edge of each card, however, isolates the card capacitance from the backplane. For a given I/O card, the LTC4300 drives the capacitance of everything on the card and the backplane must drive only the capacitance of the LTC4300, which is less than 10pF ...
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... ENABLE product of 10ms provides a filter to prevent the LTC4300-1 from becoming activated until the transients associated with hot swapping have settled. Figure 8 shows the LTC4300 application where the user has a custom connector with pins of three different lengths available. Making V the shortest pin ensures ...
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... 10k 10k BD_SEL SDA SCL NOTE: APPLICATION ASSUMES BUS CAPACITANCES WITHIN “PROPER OPERATION” REGION OF FIGURES 3 AND 4 Figure 5. Hot Swapping Multiple I/O Cards into a Backplane Using the LTC4300 CompactPCI System POWER SUPPLY HOT SWAP ENABLE SDAIN SCLIN POWER SUPPLY HOT SWAP ...
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... CC2 BD_SEL V CC SDA SCL R1 R2 10k 10k NOTE: APPLICATION ASSUMES BUS CAPACITANCES WITHIN “PROPER OPERATION” REGION OF FIGURES 3 AND 4 Figure 6. Hot Swapping Multiple I/O Cards into a Backplane Using the LTC4300 CompactPCI System W U POWER SUPPLY HOT SWAP 5 SDAIN SCLIN C2 0.01 F ...
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... CC2 R1 R2 10k 10k V CC SDA SCL NOTE: APPLICATION ASSUMES BUS CAPACITANCES WITHIN “PROPER OPERATION” REGION OF FIGURES 3 AND 4 Figure 8. Hot Swapping Multiple I/O Cards into a Backplane Using the LTC4300-2 with a Custom Connector I/O PERIPHERAL CARD 1 R3 100k ENABLE LTC4300-1 SDAIN SCLIN C2 0 ...
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... TYP 0.53 0.015 1.10 (.021 .006) (.043) DETAIL “A” MAX SEATING PLANE 0.22 – 0.38 (.009 – .015) LTC4300-1/LTC4300-2 2-WIRE SYSTEM 0. LTC4300-1 10k 10k V CC ENABLE SDAOUT SCLOUT SDAIN SDA1 SCLIN READY SCL1 GND 0.52 (.206 REF 3.00 0.102 ( ...
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... Voltages 0.01 F 0.01 F 10k CC2 SDAIN SDAOUT LTC4300-2 SCLIN SCLOUT U1 ACC GND Figure 11 3.3V Level Translator COMMENTS Low Single-Ended/70 Differential, ON Expandable to 32 Single or 16 Differential Channels Precision 50 A 2.5% Tolerance Over Temperature, 4 Selectable SMBus Addresses, DAC Powers up at Zero or Midscale 8 Selectable Addresses/16-Channel Capability DNL < ...