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LTC4306
4306f
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 2005
LT/LWI/TP 0805 500 PRINTED IN USA
APPLICATIO S I FOR ATIO
WU
UU
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
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32 Single or 16 Differential Channels
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A ±2.5% Tolerance Over Temperature, 4 Selectable
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SMBus Addresses, DAC Powers Up at Zero or Midscale
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SMBus Accelerator
Improved SMBus/I2C Rise Time, Ensures Data Integrity with Multiple
SMBus/I2C Devices
LT
1786F
SMBus Controlled CCFL Switching Regulator
1.25A, 200kHz, Floating or Grounded Lamp Configurations
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TM
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Dual I2C Fan Speed Controller
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LTC4300A-1/LTC4300A-2 Hot Swappable 2-Wire Bus Buffer
Isolates Backplane and Card Capacitances
LTC4300A-3
Hot Swappable 2-Wire Bus Buffer
Provides Level Shifting and Enable Functions
LTC4301
Supply Independent Hot Swappable 2-Wire Bus Buffer
Supply Independent
LTC4301L
Hot Swappable 2-Wire Bus Buffer with Low Voltage
Allows Bus Pull-Up Voltages as Low as 1V on SDAIN and SCLIN
Level Translation
LTC4303/LTC4304
How Swappable Bus Buffers with Stuck Bus Recovery
Recover Stuck Buses with Automatic Clocking
LTC4305
2-Channel 2-Wire Multiplexer with Capacitance
2 Selectable Downstream Buses, Stuck Bus Disconnect, Rise Time
Buffering
Accelerators, Fault Reporting,
±10kV HBM ESD Tolerance
ThinSOT is a trademark of Linear Technology Corporation.
Figure 8. Downstream Side Hot-Swapping Application
VCC = 3.3V
TEMPERATURE
SENSOR
VCC
R6
10k
C1
0.01
F
R7
10k
R8
10k
R4
10k
R5
10k
R2
10k
R3
10k
R1
1k
LED
MICRO-
CONTROLLER
VOLTAGE
MONITOR
R9
10k
R10
10k
R11
10k
TEMPERATURE
SENSOR
R12
10k
R13
10k
R14
10k
VOLTAGE
MONITOR
I/O CARD
R15
10k
R16
10k
R17
10k
4306 F08
VCC2 = 5V
VCC3 = 2.5V
VCC4 = 3.3V
OPEN
SCLIN
SDAIN
ENABLE
READY
GPI01
GPI02
ADR2
ADR1
ADR0
GND
SCL1
SDA1
SCL2
SDA2
SCL3
SDA3
SCL4
SDA4
VCC
ADDRESS = 1010 000
LTC4306UFD
ALERT4
ALERT3
ALERT2
ALERT
ALERT1