LTC4151CS-2#PBF Linear Technology, LTC4151CS-2#PBF Datasheet - Page 9

• Manufacturer Part Number: LTC4151CS-2#PBF
• Description: IC CURRENT MONITOR(12BIT) 16SOIC
• Manufacturer: Linear Technology

Specifications of LTC4151CS-2#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: 16-SOIC (3.9mm Width)
• Voltage Supervisor Type: Voltage Monitor
• Number Of Voltage Supervisors: 1
• Reset Threshold Voltage (min): 2.3V
• Reset Threshold Voltage (max): 2.9V
• Operating Supply Voltage (min): 7V
• Operating Supply Voltage (max): 80V
• Package Type: SO
• Operating Temperature Classification: Commercial
• Operating Temp Range: 0C to 70C
• Pin Count: 16
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Compliant

APPLICATIONS INFORMATION
I
The LTC4151 features an I
provide access to six ADC data registers and a control
register for monitoring the measured voltages. Figure 2
shows a general data transfer format using the I
LTC4151is a read-write slave device and supports SMBus
Read Byte, Write Byte, Read Word and Write Word com-
mands. The device also supports Read Page and Write
Page commands that allow one to read or write more than
two bytes of data. When using the Read Page and Write
2
S
S
C Interface
1 1 0 a3:a0
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
1 1 0 a3:a0
ADDRESS
ADDRESS
Figure 5. LTC4151 Serial Bus SDA Write Page Protocol
Figure 3. LTC4151 Serial Bus SDA Write Byte Protocol
SDA
SCL
W
W
0
0
A
A
0
0
CONDITION
START
X X X X X b2:b0
X X X X X b2:b0
S
COMMAND
COMMAND
A: ACKNOWLEDGE (LOW)
A: NOT ACKNOWLEDGE (HIGH)
R: READ BIT (HIGH)
S
ADDRESS
a6 - a0
1 - 7
1 1 0 a3:a0
ADDRESS
A
A
0
0
2
S
C-compatible interface to
b7:b0
b7:b0
DATA
DATA
1 1 0 a3:a0
ADDRESS
W
A P
0
A
0
Figure 7. LTC4151 Serial Bus SDA Read Word Protocol
0
Figure 8. LTC4151 Serial Bus SDA Read Page Protocol
R/W
8
A
0
DATA
b7:b0
4151 F03
W
X X X X X b2:b0
0
COMMAND
Figure 2. General Data Transfer over I
A
0
A
0
ACK
W: WRITE BIT (LOW)
S: START CONDITION
P: STOP CONDITION
9
X X X X X b2:b0
...
...
COMMAND
2
b7:b0
DATA
C. The
A
0
1 - 7
S
b7 - b0
A P
0
4151 F05
DATA
1 1 0 a3:a0 1 0
ADDRESS
A
0
S
1 1 0 a3:a0 1 0
Page commands, the host need only to issue an initial
register address and the internal register address pointer
automatically increments by 1 after each byte of data is read
or written. After the register address reaches 06h, it will
be reset to 00h and continue the increment. Upon a Stop
condition, the register address is reset to 00h. If desired,
the Read Page and Write Page support can be disabled by
clearing control register bit G3. The data formats for the
above commands are shown in Figures 3 to 8.
ADDRESS
8
Figure 4. LTC4151 Serial Bus SDA Write Word Protocol
S
R A
S
Figure 6. LTC4151 Serial Bus SDA Read Byte Protocol
1 1 0 a3:a0
ADDRESS
1 1 0 a3:a0
ADDRESS
ACK
b7:b0
DATA
R A
9
DATA
b7:b0
A
0
2
W
0
C
W
b7:b0
DATA
0
A
0
1 - 7
A
0
A
0
X X X X X b2:b0
DATA
b7:b0
X X X X X b2:b0
b7 - b0
COMMAND
DATA
...
COMMAND
...
A P
1
4151 F07
b7:b0
DATA
8
A P
A
1
4151 F08
0
A
0
S
ACK
b7:b0
9
DATA
1 1 0 a3:a0 1 0
ADDRESS
A
0
LTC4151
CONDITION
b7:b0
DATA
STOP
R A
P
4151 F02
A P
0
4151 F04
DATA
b7:b0 1
A P
4151 F06
4151fc
9