LTC2450 查看數據表（PDF） - Linear Technology
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LTC2450 Datasheet PDF : 32 Pages
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LTC2945
TYPICAL APPLICATION
3.3V Input Supply Monitor with 12V VDD Input
RSNS
VIN
3.3V
0.02Ω
VOUT
3.3V
SENSE+ SENSE–
R1 R2 R3
VDD
2k 2k 2k
12V
VDD LTC2945 SCL
INTVCC
SDAI
ADR1
SDAO
C2
0.1μF
ADR0
ALERT
ADIN VADIN
GND
SCL
SDA μP
INT
GND
2945 TA12
Rail-to-Rail Bidirectional Current and Power Monitor
V+
LT6105
V–
VOUT
IN–
IN+
RIN1
RIN2
1k RSNS 1k
VIN
0.02Ω
0V TO 44V
SENSE+ SENSE–
TO
LOAD
2.7V TO 5.9V
VDD
LTC2945
INTVCC
ADR1
ADR0
GND
SCL
SDAI
SDAO
ALERT
ADIN
I2C
INTERFACE
RADIN
20k
2945 TA11
CONTROL REG
A2
FORWARD
1
REVERSE
1
VOLTAGE
DATA
SENSE+
SENSE+
CURRENT
DATA
POWER
DATA
ΔSENSE INTERNALLY GENERATED
ADIN
USE EXTERNAL μP TO
MULTIPLY VOLTAGE (SENSE+)
AND CURRENT (ADIN) DATA
RELATED PARTS
PART NUMBER DESCRIPTION
LTC4151
High Voltage I2C Current and Voltage Monitor
COMMENTS
7V to 80V Operation, 12-Bit Resolution with ±1.25% TUE
LT6105
Rail-to-Rail Input Current Sense Amplifier
Very Wide Input Common Mode Range, 2.85V to 36V Operation
LTC2450
LTC4215
LTC4222
LTC4260
LTC4261
Easy-to-Use, Ultra-Tiny 16-Bit ADC
GND to VCC Single-Ended Input Range, 0.02 LSB RMS Noise, 2 LSB INL
(No Missing Codes), 2 LSB Offset Error, 4 LSB Full-Scale Error
Single Channel, Hot Swap Controller with I2C Monitoring
8-Bit ADC, Adjustable Current Limit and Inrush, 2.9V to 15V Operation
Dual Channel, Hot Swap Controller with I2C Monitoring
10-Bit ADC, Adjustable Current Limit and Inrush, 2.9V to 29V Operation
Positive High Voltage Hot Swap Controller with I2C Monitoring 8-Bit ADC, Adjustable Current Limit and Inrush, 8.5V to 80V Operation
Negative High Voltage Hot Swap Controller with I2C Monitoring 10-Bit ADC, Floating Topology, Adjustable Inrush
LTC2940
LTC2970
Power and Current Monitor
Dual I2C Power Supply Monitor and Margining Controller
Four-Quadrant Multiplication, ±5% Power Accuracy, 4V to 80V Operation
14-Bit ADC with ±0.5% TUE, Dual 8-Bit DACs
LTC2974
Quad Digital Power Supply Manager with EEPROM
16-Bit ADC with ±0.25% TUE, Supervise/Sequence/Monitor/Margin/
Trim, Configuration/Fault Logging EEPROM, I2C, Supervise/Monitor
Current and Temperature
LTC2978
Octal Digital Power Supply Manager with EEPROM
16-Bit ADC with ±0.25% TUE, Supervise/Sequence/Monitor/Margin/
Trim, Configuration/Fault Logging EEPROM, I2C
32 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
2945f
LT 1012 • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2012
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