LTC4301CMS8 Linear Technology, LTC4301CMS8 Datasheet - Page 8

• Manufacturer Part Number: LTC4301CMS8
• Description: IC BUFFER BUS HOTSWAP 2WR 8MSOP
• Manufacturer: Linear Technology
• Type: Hot-Swap Switchr

Specifications of LTC4301CMS8

• Applications: General Purpose, Buffer/Bus Extender
• Internal Switch(s): Yes
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATIO S I FOR ATIO
LTC4301
they make contact. CS is a short pin that is pulled up when
not connected. This is to ensure that the connection
between the backplane and the cards data and clock
busses is not enabled until the transients associated with
live insertion have settled.
Figure 4 shows the LTC4301 in a CompactPCI
ration. The LTC4301 receives its V
the long “early power” pins. Because this power is not
switched, add a 5Ω to 10Ω resistor between V
LTC4301 and the connector V
8
BD_SEL
V
SDA
SCL
V
CC2
CC
R1
10k
BACKPLANE
Figure 4. Inserting Multiple I/O Cards into a Live Backplane Using the LTC4301 in a CompactPCI System
R2
10k
U
CONNECTOR
BACKPLANE
U
CC
pin. Establishing early
CC
W
voltage from one of
TM
U
CC
configu-
of the
5.1Ω
5.1Ω
5.1Ω
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.
Figure 5 shows the LTC4301 in a PCI application where all
of the pins have the same length. In this case, an RC filter
circuit on the I/O card with a product of 10ms provides a
CompactPCI is a trademark of the PCI Industrial Computer Manufacturers Group.
R3
10k
R7
10k
R11
10k
CS
SDAIN
SCLIN
CS
SDAIN
SCLIN
CS
SDAIN
SCLIN
I/O PERIPHERAL CARD 1
I/O PERIPHERAL CARD 2
I/O PERIPHERAL CARD N
CC
ensures that the 1V precharge voltage is
LTC4301
LTC4301
LTC4301
GND
GND
GND
V
V
V
CC
CC
CC
0.01µF
0.01µF
0.01µF
SDAOUT
SDAOUT
SDAOUT
SCLOUT
SCLOUT
SCLOUT
READY
READY
READY
R4
10k
R8
10k
R12
10k
R5
10k
R9
10k
R13
10k
R6
10k
R10
10k
R14
10k
CARD_SDA
CARD_SCL
CARD2_SDA
CARD2_SCL
CARDN_SDA
CARDN_SCL
4301 F03
4301fb