Datasheet

LTC4303
12
4303fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2005
LT/LWI 0806 REV B • PRINTED IN USA
TYPICAL APPLICATIO
U
Figure 6. System with Active Connection Control
RELATED PARTS
CARD
FROM
MICROPROCESSOR
ENABLE
CARD_SCL
CARD_SDA
SCLOUTSCLIN
SDAOUTSDAIN
GND
V
CC
LTC4303
READY
C1
0.01 F
4303 F06
R1
10k
R2
10k
R3
10k
R4
10k
R5
100k
5V
BACK_SCL
BACKPLANE
CONNECTOR
BACK_SDA
3.3V
STAGGERED
CONNECTOR
PART NUMBER DESCRIPTION COMMENTS
LTC1380/LTC1393 Single-Ended 8-Channel/Differential 4-Channel Analog Low R
ON
: 35Ω Single-Ended/70Ω Differential,
Mux with SMBus Interface Expandable to 32 Single or 16 Differential Channels
LTC1427-50 Micropower, 10-Bit Current Output DAC Precision 50µA ± 2.5% Tolerance Over Temperature,
with SMBus Interface 4 Selectable SMBus Addresses, DAC Powers up at Zero or Midscale
LTC1623 Dual High Side Switch Controller with SMBus Interface 8 Selectable Addresses/16-Channel Capability
LTC1663 SMBus Interface 10-Bit Rail-to-Rail Micropower DAC DNL < 0.75LSB Max, 5-Lead SOT-23 Package
LTC1694/LTC1694-1 SMBus Accelerator Improved SMBus/I
2
C Rise-Time,
Ensures Data Integrity with Multiple SMBus/I
2
C Devices
LT1786F SMBus Controlled CCFL Switching Regulator 1.25A, 200kHz, Floating or Grounded Lamp Confi gurations
LTC1695 SMBus/I
2
C Fan Speed Controller in ThinSOT
TM
0.75Ω PMOS 180mA Regulator, 6-Bit DAC
LTC1840 Dual I
2
C Fan Speed Controller Two 100µA 8-Bit DACs, Two Tach Inputs, Four GPI0
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 Allows Bus Pull-Up Voltages as Low as 1V on SDAIN and SCLIN
with Low Voltage Level Translation
LTC4302-1/LTC4302-2 Addressable 2-Wire Bus Buffer Address Expansion, GPIO, Software Controlled
LTC4304 Hot Swappable 2-Wire Bus Buffer with Provides Automatic Clocking to Free Stuck I
2
C Busses; Fault Flag
Stuck Bus Recovery for Stuck Bus, Level Shifting Functions
ThinSOT is a trademark of Linear Technology Corporation.