MAX5978ETJ+ Maxim Integrated Products, MAX5978ETJ+ Datasheet - Page 35

• Manufacturer Part Number: MAX5978ETJ+
• Description: Hot Swap & Power Distribution 0-16V HOTSWAP CONTLR W/10BIT CUR VOLT MON
• Manufacturer: Maxim Integrated Products

Specifications of MAX5978ETJ+

• Product: Controllers & Switches
• Supply Voltage (max): 16 V
• Supply Voltage (min): 0 V
• Power Dissipation: 2759 mW
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Supply Current: 2.5 mA
• Package / Case: TQFN-32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 7. SMBus/I
SEND BYTE FORMAT
BLOCK WRITE FORMAT
S = START CONDITION
P = STOP CONDITION
RECEIVE BYTE FORMAT
BLOCK READ FORMAT
S
S
S
S
SLAVE ADDRESS–
EQUIVALENT TO CHIP-
SELECT LINE OF A
3-WIRE INTERFACE.
SLAVE ADDRESS–
EQUIVALENT TO CHIP-
SELECT LINE OF A
3-WIRE INTERFACE.
SLAVE ADDRESS–
EQUIVALENT TO CHIP-
SELECT LINE OF A
3-WIRE INTERFACE.
ADDRESS
ADDRESS WR
ADDRESS
SLAVE ADDRESS–
EQUIVALENT TO CHIP-
SELECT LINE OF A
3-WIRE INTERFACE.
Current, Voltage Monitor, and 4 LED Drivers
7 BITS
7 BITS
7 BITS
ADDRESS
7 BITS
0 to 16V, Hot-Swap Controller with 10-Bit
2
0
C Protocols
WR
WR
1
0
WR
ACK COMMAND
0
ACK
ACK
DEPENDENT ON A SEND BYTE.
DATA BYTE–READS DATA FROM
THE REGISTER COMMANDED BY
THE LAST READ BYTE OR WRITE
BYTE TRANSMISSION. ALSO
DATA BYTE–PRESETS THE
INTERNAL ADDRESS POINTER.
COMMAND BYTE–
PREPARES DEVICE
FOR BLOCK
OPERATION.
SHADED = SLAVE TRANSMISSION
Sr = REPEATED START CONDITION
ACK
8 BITS
8 BITS
8 BITS
DATA
DATA
COMMAND BYTE–
PREPARES DEVICE
FOR BLOCK
OPERATION.
COMMAND ACK
8 BITS
ACK
ACK
ACK
SR
P
P
SLAVE ADDRESS–
EQUIVALENT TO CHIP-
SELECT LINE OF A
3-WIRE INTERFACE.
ADDRESS
COUNT = N
7 BITS
8 BITS
BYTE
WRITE BYTE FORMAT
WRITE WORD FORMAT
WR
1
S
S
ACK
SLAVE ADDRESS–
EQUIVALENT TO CHIP-
SELECT LINE OF A
3-WIRE INTERFACE.
SLAVE ADDRESS–
EQUIVALENT TO CHIP-
SELECT LINE OF A
3-WIRE INTERFACE.
ACK
ADDRESS
ADDRESS
7 BITS
DATA BYTE–DATA GOES INTO THE REGISTER SET BY THE
COMMAND BYTE.
7 BITS
DATA BYTE
8 BITS
DATA BYTE–DATA GOES INTO THE REGISTER SET BY THE
COMMAND BYTE.
COUNT = 16
1
10h
BYTE
WR
0
WR
ACK
0
ACK
ACK
COMMAND BYTE–
MSB OF THE
EEPROM
REGISTER BEING
WRITTEN.
ACK
DATA BYTE
8 BITS
COMMAND
DATA BYTE
...
8 BITS
8 BITS
COMMAND BYTE–
SELECTS REGISTER
BEING WRITTEN.
1
COMMAND
8 BITS
ACK
ACK
ACK
DATA BYTE–FIRST BYTE IS THE LSB OF
THE EEPROM ADDRESS. SECOND
BYTE IS THE ACTUAL DATA.
DATA BYTE
8 BITS
DATA
DATA BYTE
8 BITS
8 BITS
ACK
N
...
ACK
DATA BYTE–DATA GOES INTO THE
REGISTER SET BY THE COMMAND
BYTE IF THE COMMAND IS BELOW
50h. IF THE COMMAND IS 80h,
81h, or 82h, THE DATA BYTE
PRESETS THE LSB OF AN EEPROM
ADDRESS.
8 BITS
DATA
ACK
ACK
8 BITS
DATA
DATA BYTE
ACK
8 BITS
P
ACK
N
P
P
ACK
P
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