LTC4151CMS-1#PBF Linear Technology, LTC4151CMS-1#PBF Datasheet - Page 13

• Manufacturer Part Number: LTC4151CMS-1#PBF
• Description: IC CURRENT MONITOR(12BIT) 10MSOP
• Manufacturer: Linear Technology

Specifications of LTC4151CMS-1#PBF

• Function: Current Monitor (12 Bit)
• Sensing Method: High-Side
• Accuracy: ±1%
• Voltage - Input: 7 ~ 80 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -

APPLICATIONS INFORMATION
address with the R/W bit now set to one. The LTC4151
acknowledges and sends the contents of the requested
register. The transmission terminates when the master
sends a Stop condition. If the master acknowledges the
transmitted data byte, as in a Read Word command, the
LTC4151 will send the contents of the next register. If
the master acknowledges the second data byte and each
of the following (if more) data bytes, as in a Read Page
command, the LTC4151 will keep sending out each data
byte in the register that corresponds to the incrementing
register pointer. The read operation terminates and the
register address pointer resets to 00h when the master
sends a Stop condition.
Layout Considerations
A Kelvin connection between the sense resistor R
the LTC4151 is recommended to achieve accurate current
sensing (Figure 10). The minimum trace width for 1oz
copper foil is 0.02" per amp to make sure the trace stays
7V to 80V
V
IN
ADIN
V
ADR1
ADR0
ADIN
IN
SENSE
LTC4151-2
0.02
+
GND
R1
SENSE
Figure 11. LTC4151-2 I
SDAO
SDAI
SCL
–
V
IN
V
C7
1µF
100V
OUT
8
5
IN
SHDN
LT3010-5
GND
2
SENSE
C Opto-Isolation Interface with High Speed Opto-Couplers
4
OUT
1
2
S
and
10k
C6
1µF
R3
at a reasonable temperature. Using 0.03" per amp or wider
is recommended. Note that 1oz copper exhibits a sheet
resistance of about 530µW per square.
R8
R4
10k
1k
V
GND
IN
Figure 10. Recommended Layout for Kelvin Connection
8
7
6
5
1
2
V
GND
CC
PS9817-2
PS9817-2
ISO1
ISO2
GND
V
CC
SENSE
V
ADR1
ADR0
1
2
3
4
8
7
5
IN
+
LTC4151
R
S
C4
0.1µF
5V
SENSE
R12
R11
1k
1k
GND
LTC4151
–
4151 F11
R14
10k
R13
10k
ISO_SDA
I
I
ISO_SCL
13
LOAD
LOAD
4151 F10
4151fc