Datasheet LTC4151 (Analog Devices) - 9
| Hersteller | Analog Devices |
| Beschreibung | High Voltage I2C Current and Voltage Monitor |
| Seiten / Seite | 18 / 9 — applicaTions inForMaTion I2C Interface. Figure 2. General Data Transfer … |
| Dateiformat / Größe | PDF / 446 Kb |
| Dokumentensprache | Englisch |
applicaTions inForMaTion I2C Interface. Figure 2. General Data Transfer over I2C. S ADDRESS W A. COMMAND. A DATA A P
Modelllinie für dieses Datenblatt
- LTC4151CDD#PBF LTC4151CDD#PBF LTC4151CDD#TRPBF LTC4151CDD#TRPBF LTC4151CDD-1#PBF LTC4151CDD-1#PBF LTC4151CDD-1#TRPBF LTC4151CDD-1#TRPBF LTC4151CMS#PBF LTC4151CMS#PBF LTC4151CMS#TRPBF LTC4151CMS#TRPBF LTC4151CMS-1#PBF LTC4151CMS-1#PBF LTC4151CMS-1#TRPBF LTC4151CMS-1#TRPBF LTC4151CS-2#PBF LTC4151CS-2#PBF LTC4151CS-2#TRPBF LTC4151CS-2#TRPBF LTC4151HDD#PBF LTC4151HDD#PBF LTC4151HDD#TRPBF LTC4151HDD#TRPBF LTC4151HMS#PBF LTC4151HMS#PBF LTC4151HMS#TRPBF LTC4151HMS#TRPBF LTC4151IDD#PBF LTC4151IDD#PBF LTC4151IDD#TRPBF LTC4151IDD#TRPBF LTC4151IDD-1#PBF LTC4151IDD-1#PBF LTC4151IDD-1#TRPBF LTC4151IDD-1#TRPBF LTC4151IMS#PBF LTC4151IMS#PBF LTC4151IMS#TRPBF LTC4151IMS#TRPBF LTC4151IMS-1#PBF LTC4151IMS-1#PBF LTC4151IMS-1#TRPBF LTC4151IMS-1#TRPBF LTC4151IS-2#PBF LTC4151IS-2#PBF LTC4151IS-2#TRPBF LTC4151IS-2#TRPBF
Textversion des Dokuments
LTC4151
applicaTions inForMaTion I2C Interface
Page commands, the host need only to issue an initial The LTC4151 features an I2C-compatible interface to register address and the internal register address pointer provide access to six ADC data registers and a control automatically increments by 1 after each byte of data is read register for monitoring the measured voltages. Figure 2 or written. After the register address reaches 06h, it will shows a general data transfer format using the I2C. The be reset to 00h and continue the increment. Upon a Stop LTC4151is a read-write slave device and supports SMBus condition, the register address is reset to 00h. If desired, Read Byte, Write Byte, Read Word and Write Word com- the Read Page and Write Page support can be disabled by mands. The device also supports Read Page and Write clearing control register bit G3. The data formats for the Page commands that allow one to read or write more than above commands are shown in Figures 3 to 8. two bytes of data. When using the Read Page and Write SDA a6 - a0 b7 - b0 b7 - b0 SCL 1 - 7 8 9 1 - 7 8 9 1 - 7 8 9 S P START ADDRESS R/W ACK DATA ACK DATA ACK STOP CONDITION CONDITION 4151 F02
Figure 2. General Data Transfer over I2C S ADDRESS W A COMMAND A DATA A P S ADDRESS W A COMMAND A DATA A DATA A P
1 1 0 a3:a0 0 0 X X X X X b2:b0 0 b7:b0 0 1 1 0 a3:a0 0 0 X X X X X b2:b0 0 b7:b0 0 b7:b0 0 4151 F03 4151 F04 FROM MASTER TO SLAVE A: ACKNOWLEDGE (LOW) W: WRITE BIT (LOW)
Figure 4. LTC4151 Serial Bus SDA Write Word Protocol
FROM SLAVE TO MASTER A: NOT ACKNOWLEDGE (HIGH) S: START CONDITION R: READ BIT (HIGH) P: STOP CONDITION
Figure 3. LTC4151 Serial Bus SDA Write Byte Protocol S ADDRESS W A COMMAND A DATA A DATA A ... DATA A P S ADDRESS W A COMMAND A S ADDRESS R A DATA A P
1 1 0 a3:a0 0 0 X X X X X b2:b0 0 b7:b0 0 b7:b0 0 ... b7:b0 0 1 1 0 a3:a0 0 0 X X X X X b2:b0 0 1 1 0 a3:a0 1 0 b7:b0 1 4151 F05 4151 F06
Figure 5. LTC4151 Serial Bus SDA Write Page Protocol Figure 6. LTC4151 Serial Bus SDA Read Byte Protocol S ADDRESS W A COMMAND A S ADDRESS R A DATA A DATA A P
1 1 0 a3:a0 0 0 X X X X X b2:b0 0 1 1 0 a3:a0 1 0 b7:b0 0 b7:b0 1 4151 F07
Figure 7. LTC4151 Serial Bus SDA Read Word Protocol S ADDRESS W A COMMAND A S ADDRESS R A DATA A DATA ... DATA A P
1 1 0 a3:a0 0 0 X X X X X b2:b0 0 1 1 0 a3:a0 1 0 b7:b0 0 b7:b0 ... b7:b0 1 4151 F08
Figure 8. LTC4151 Serial Bus SDA Read Page Protocol
4151ff For more information www.linear.com/LTC4151 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts
applicaTions inForMaTion I2C Interface
Page commands, the host need only to issue an initial The LTC4151 features an I2C-compatible interface to register address and the internal register address pointer provide access to six ADC data registers and a control automatically increments by 1 after each byte of data is read register for monitoring the measured voltages. Figure 2 or written. After the register address reaches 06h, it will shows a general data transfer format using the I2C. The be reset to 00h and continue the increment. Upon a Stop LTC4151is a read-write slave device and supports SMBus condition, the register address is reset to 00h. If desired, Read Byte, Write Byte, Read Word and Write Word com- the Read Page and Write Page support can be disabled by mands. The device also supports Read Page and Write clearing control register bit G3. The data formats for the Page commands that allow one to read or write more than above commands are shown in Figures 3 to 8. two bytes of data. When using the Read Page and Write SDA a6 - a0 b7 - b0 b7 - b0 SCL 1 - 7 8 9 1 - 7 8 9 1 - 7 8 9 S P START ADDRESS R/W ACK DATA ACK DATA ACK STOP CONDITION CONDITION 4151 F02
Figure 2. General Data Transfer over I2C S ADDRESS W A COMMAND A DATA A P S ADDRESS W A COMMAND A DATA A DATA A P
1 1 0 a3:a0 0 0 X X X X X b2:b0 0 b7:b0 0 1 1 0 a3:a0 0 0 X X X X X b2:b0 0 b7:b0 0 b7:b0 0 4151 F03 4151 F04 FROM MASTER TO SLAVE A: ACKNOWLEDGE (LOW) W: WRITE BIT (LOW)
Figure 4. LTC4151 Serial Bus SDA Write Word Protocol
FROM SLAVE TO MASTER A: NOT ACKNOWLEDGE (HIGH) S: START CONDITION R: READ BIT (HIGH) P: STOP CONDITION
Figure 3. LTC4151 Serial Bus SDA Write Byte Protocol S ADDRESS W A COMMAND A DATA A DATA A ... DATA A P S ADDRESS W A COMMAND A S ADDRESS R A DATA A P
1 1 0 a3:a0 0 0 X X X X X b2:b0 0 b7:b0 0 b7:b0 0 ... b7:b0 0 1 1 0 a3:a0 0 0 X X X X X b2:b0 0 1 1 0 a3:a0 1 0 b7:b0 1 4151 F05 4151 F06
Figure 5. LTC4151 Serial Bus SDA Write Page Protocol Figure 6. LTC4151 Serial Bus SDA Read Byte Protocol S ADDRESS W A COMMAND A S ADDRESS R A DATA A DATA A P
1 1 0 a3:a0 0 0 X X X X X b2:b0 0 1 1 0 a3:a0 1 0 b7:b0 0 b7:b0 1 4151 F07
Figure 7. LTC4151 Serial Bus SDA Read Word Protocol S ADDRESS W A COMMAND A S ADDRESS R A DATA A DATA ... DATA A P
1 1 0 a3:a0 0 0 X X X X X b2:b0 0 1 1 0 a3:a0 1 0 b7:b0 0 b7:b0 ... b7:b0 1 4151 F08
Figure 8. LTC4151 Serial Bus SDA Read Page Protocol
4151ff For more information www.linear.com/LTC4151 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts