LTC4151
18
4151ff
For more information www.linear.com/LTC4151
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LINEAR TECHNOLOGY CORPORATION 2008
LT 0314 REV F • PRINTED IN USA
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LTC4151
4151 TA03
LOAD
RS
0.02Ω
LTC4151
SCL
V
IN2
48V
V
IN
I
2
C
SDA
ADR1
ADR0
ADIN
R2
301k
R3
3.4k
R1
150k
D4
D2F2
GND
GND
SENSE
+
SENSE
–
V
+
V
–
D3
V
IN1
48V
D1F1
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LT2940 Power and Current Monitor Four-Quadrant Multiplication, ±5% Power Accuracy, 4V to 80V Operation
LTC2945 Wide Range I
2
C Power Monitor 0V to 80V Input Range, 2.7V to 80V Supply Range, Shunt Regulator, 12-Bit ADC
with ±0.75% TUE
LTC2451 16-Bit I
2
C Ultra Tiny Delta Sigma ADC
Single-Ended Input, 0 to V
CC
Input Range, 60Hz Output Rate, 3mm × 2mm
DFN-8 Package
LTC2453 16-Bit I
2
C Ultra Tiny Delta Sigma ADC
Differential Input, ±V
CC
Input Range, 60Hz Output Rate, 3mm × 2mm
DFN-8 Package
LTC2970 Power Supply Monitor and Margining Controller
14-Bit ADC Monitoring Current and Voltages, Supplies from 8V to 15V
LTC4215 Positive Hot Swap
TM
Controller with ADC and I
2
C 8-Bit ADC Monitoring Current and Voltages, Supplies from 2.9V to 15V
LTC4260 Positive High Voltage Hot Swap Controller with
ADC and I
2
C
8-Bit ADC Monitoring Current and Voltages, Supplies from 8.5V to 80V
LTC4261/
LTC4261-2
Negative High V
oltage Hot Swap Controller with
ADC and I
2
C
10-Bit ADC Monitoring Current and Voltages, Supplies from –12V
LTC6101/
LTC6101HV
High Voltage, High Side Current Sense Amplifier
in SOT-23 Package
Supplies from 4V to 60V (LTC6101) and 5V to 100V (LTC6101HV)
High Side Current, Input Voltage and Open Fuse Monitoring
with a Single LTC4151
CONDITION RESULT
N
ADIN
≥ 1.375 • N
VIN
Normal Operation
0.835 • N
VIN
≤ N
ADIN
< 1.375 • N
VIN
F2 is Open
0.285 • N
VIN
≤ N
ADIN
< 0.835 • N
VIN
F1 is Open
(Not Responding) Both F1 and F2 are Open
V
IN1
AND V
IN2
ARE WITHIN 20% APART. N
ADIN
AND N
VIN
ARE DIGITAL CODES
MEASURED BY THE ADC AT THE ADIN AND V
IN
PINS, RESPECTIVELY.
