MAX6602UE9A+ Maxim Integrated Products, MAX6602UE9A+ Datasheet - Page 9

• Manufacturer Part Number: MAX6602UE9A+
• Description: IC TEMP MONITOR 5CH 16-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX6602UE9A+

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Buffer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Full Temp Accuracy: +/- 1 C, +/- 3 C
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 11 bit
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 3. SMBus Write Timing Diagram
Figure 4. SMBus Read Timing Diagram
There are seven alarm threshold registers that store
overtemperature ALERT and OVERT threshold values.
Five of these registers are dedicated to store one local
alert temperature threshold limit and four remote alert
temperature threshold limits (see the ALERT Interrupt
Mode section). The remaining two registers are dedi-
cated to remote channels 1 and 4 to store overtemper-
ature threshold limits (see the OVERT Overtemperature
Alarm section). Access to these registers is provided
through the SMBus interface.
SMBCLK
SMBDATA
SMBCLK
SMBDATA
A = START CONDITION
B = MSB OF ADDRESS CLOCKED INTO SLAVE
C = LSB OF ADDRESS CLOCKED INTO SLAVE
D = R/W BIT CLOCKED INTO SLAVE
E = SLAVE PULLS SMBDATA LINE LOW
A = START CONDITION
B = MSB OF ADDRESS CLOCKED INTO SLAVE
C = LSB OF ADDRESS CLOCKED INTO SLAVE
D = R/W BIT CLOCKED INTO SLAVE
Five-Channel Precision Temperature Monitor
t
t
SU:STA
SU:STA
A
A
t
HD:STA
t
HD:STA
_______________________________________________________________________________________
t
LOW
Alarm Threshold Registers
t
LOW
B
t
B
HIGH
t
HIGH
t
SU:DAT
t
SU:DAT
C
C
F = ACKNOWLEDGE BIT CLOCKED INTO MASTER
G = MSB OF DATA CLOCKED INTO MASTER
H = LSB OF DATA CLOCKED INTO MASTER
I = MASTER PULLS DATA LINE LOW
E = SLAVE PULLS SMBDATA LINE LOW
F = ACKNOWLEDGE BIT CLOCKED INTO MASTER
G = MSB OF DATA CLOCKED INTO SLAVE
H = LSB OF DATA CLOCKED INTO SLAVE
D
D
E
F
E
F
An ALERT interrupt occurs when the internal or external
temperature reading exceeds a high-temperature limit
(user programmable). The ALERT interrupt output signal
can be cleared by reading the status register(s) associ-
ated with the fault(s) or by successfully responding to an
alert response address transmission by the master. In
both cases, the alert is cleared but is reasserted at the
end of the next conversion if the fault condition still
exists. The interrupt does not halt automatic conversions.
The ALERT output is open drain so that multiple devices
can share a common interrupt line. All ALERT interrupts
can be masked using the configuration 3 register. The
POR state of these registers is shown in Table 1.
t
HD:DAT
G
G
I = MASTER PULLS DATA LINE LOW
J = ACKNOWLEDGE CLOCKED INTO SLAVE
K = ACKNOWLEDGE CLOCK PULSE
L = STOP CONDITION
M = NEW START CONDITION
H
H
J = ACKNOWLEDGE CLOCKED INTO SLAVE
K = ACKNOWLEDGE CLOCK PULSE
L = STOP CONDITION
M = NEW START CONDITION
I
ALERT Interrupt Mode
I
J
J K
K
t
SU:STO
t
SU:STO
L
L
t
BUF
t
BUF
M
M
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