Datasheet

LTC4300A-1/LTC4300A-2
16
4300a12fa
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 2001
LT 0712 REV A • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATIONS
PART NUMBER DESCRIPTION COMMENTS
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Mux with SMBus Interface
Low R
ON
: 35Ω Single-Ended/70Ω Differential, Expandable to
32 Single or 16 Differential Channels
LTC1427-50 Micropower, 10-Bit Current Output DAC
with SMBus Interface
Precision 50μA ± 2.5% Tolerance Over Temperature, 4 Selectable
SMBus Addresses, DAC Powers up at Zero or Mid-scale
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 Configurations
LTC1695 SMBus/I
2
C Fan Speed Controller in ThinSOT™ 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
Figure 8. System with Disparate V
CC
Voltages
Figure 9. 5V to 3.3V Level Translator
R1
10k
V
CC
(BUS)
R2
10k
R
DROP
V
CC
(LTC4300A)
SDA
SCL
4300a12 F08
R4
10k
R5
10k
R3
10k
SDAIN
ENABLE
SCLIN
U1
LTC4300A-1
V
CC
GND
SCL2
SDA2
SDAOUT
SCLOUT
READY
C2
0.01μF
V
CC2
GND
SDAOUT
SCLOUT
SDAIN
SCLIN
ACC
V
CC
R2
10k
R3
10k
CARD_V
CC
, 3.3V
CARD_SCL
CARD_SDA
C2
0.01μF
C1
0.01μF
R1
10k
V
CC
5V
R4
10k
U1
LTC4300A-2
SCL
SDA
4300a12 F09