LTC4301 Linear Technology, LTC4301 Datasheet
LTC4301
Available stocks
Related parts for LTC4301
LTC4301 Summary of contents
Page 1
... SCLIN and SCLOUT and between SDAIN and SDAOUT. The READY output pin indicates that the back- plane and card sides are connected together. The LTC4301 is offered in 8-pin DFN (3mm × 3mm) and MSOP packages. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ...
Page 2
... LTC4301 ABSOLUTE MAXIMUM V to GND ................................................. –0. SDAIN, SCLIN, SDAOUT, SCLOUT, CS ........ –0. READY ........................................................ –0. Operating Temperature Range LTC4301C ............................................... 0°C to 70°C LTC4301I ............................................ – 40°C to 85°C U PACKAGE/ORDER INFORMATION TOP VIEW SCLOUT 2 7 SDAOUT 9 SCLIN SDAIN 3 6 GND ...
Page 3
... 100pF IN OUT 10k PULLUPIN PULLUPOUT 0 –50 – 100 TEMPERATURE (°C) 4301 G02 LTC4301 www.DataSheet4U.com MIN TYP MAX UNITS ● 0 100 175 10 ±5 ● 0 0.4 400 600 kHz 1.3 100 100 voltage is shown in the Typical Performance CC Connection Circuitry V – ...
Page 4
... SDA bus on the card. V (Pin 8): Main Input Supply. Place a bypass capacitor least 0.01µF close to V Exposed Pad (Pin 9): Exposed pad may be left open or connected to device ground. LTC4301 Supply Independent 2-Wire Bus Buffer PRECHARGE CONNECT PRECHARGE PRECHARGE R1 R2 CONNECT CONNECT ...
Page 5
... I/O card. Once the LTC4301 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 6
... Figure 1. An external N-channel MOSFET device pulls down the voltage on the side with 55pF capacitance; LTC4301 pulls down the voltage on the opposite side with a delay of 60ns. This delay is always positive and is a function of supply voltage, temperature and the pull-up resistors and equiva- lent bus capacitances on both sides of the bus ...
Page 7
... LTC4301, which is less than 10pF. TM controlling, In most applications the LTC4301 will be used with a staggered connector where V SDA and SCL are medium length pins to ensure that the V and GND pins make contact first. This will allow the ...
Page 8
... R1 R2 10k 10k BD_SEL SDA SCL Figure 4. Inserting Multiple I/O Cards into a Live Backplane Using the LTC4301 in a CompactPCI System power V present at SDAIN and SCLIN before they make contact. The CS pin is driven by the CompactPCI’s BD_SEL# pin using a short pin. This is to ensure that a connection is not enabled until the transients associated with live insertion have settled ...
Page 9
... SDA SCL Figure 5. Inserting Multiple I/O Cards into a Live Backplane Using the LTC4301 in a PCI System filter to prevent the LTC4301 from becoming activated until the transients associated with live insertion have settled. Connect the capacitor between V the resistor from CS to GND. ...
Page 10
... SDAOUT SDAIN LTC4301 SCLOUT SCLIN READY GND Figure 7. System with V Voltage Droop CC www.DataSheet4U.com V CC4 V CC5 0.01µ LTC4301 10k 10k V CC SDAOUT CS SCLOUT SDAIN SDA2 SCLIN SCL2 READY TO OTHER GND SYSTEM 2 DEVICES 4301 F07 10k 10k 10k ...
Page 11
... MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX LTC4301 www.DataSheet4U.com R = 0.115 0.38 ± 0.10 ...
Page 12
... Two 100µA 8-Bit DACs, Two Tach Inputs, Four GPI0 Isolates Backplane and Card Capacitances Allows Bus Pull-Up Voltages as Low SDAIN and SCLIN Address Expansion, GPIO, Software Controlled www.linear.com ● www.DataSheet4U.com 10k 10k V CC LTC4301 SCLOUT CARD_SCL SDAOUT CARD_SDA READY GND 4301 TA01 CARD 2 ...