MAX6662MSA+T Maxim Integrated Products, MAX6662MSA+T Datasheet - Page 5

• Manufacturer Part Number: MAX6662MSA+T
• Description: IC TEMP SENSOR SPI 8-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of MAX6662MSA+T

• Function: Temp Sensor, Watchdog
• Topology: ADC, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 150°C
• Output Type: SPI™
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -55°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Full Temp Accuracy: +/- 2.5 C
• Digital Output - Bus Interface: Serial (3-Wire, SPI)
• Digital Output - Number Of Bits: 12 bit + Sign
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

For example: If T
to 20°C, ALERT does not assert until temperature
exceeds 100°C. If the temperature is then read through
the serial interface, ALERT deasserts. ALERT asserts
again when temperature is less than 80°C (Figure 2).
In the comparator mode, ALERT is asserted when tem-
perature exceeds the value in the T
lower than the value in the T
deasserts when temperature is less than T
or greater than T
does not deassert ALERT.
For example: If T
to 80°C, ALERT does not assert until temperature
exceeds 100°C, or is below 80°C. Then, ALERT only
deasserts if temperature is less than T
greater than T
Figure 1. MAX6662 Simplified Functional Diagram
LOW
HIGH
HIGH
LOW
_______________________________________________________________________________________
+ T
HYST
12-Bit + Sign Temperature Sensor with
is set to 100°C and T
+ T
is set to 100°C and T
V
CC
HYST
.
12 -BIT
+ SIGN
. Reading the registers
LOW
ADC
TEMPERATURE
Comparator Mode
HIGH
SIO
SCLK
CS
register. ALERT
HIGH
SPI-Compatible Serial Interface
register, or is
HIGH
HYST
LOW
- T
T
LOW
HYST
- T
SERIAL INTERFACE
is set
is set
T
HYST
HIGH
or
T
MAX
T
OT operates only in comparator mode. The OT pin is
asserted when the temperature exceeds T
deasserted when the temperature drops below
T
OT is an open-drain active-low (default) output, but can
be programmed to active-high.
Figure 2. Example of ALERT Operation in Interrupt Mode
HYST
T
T
MAX
* TEMPERATURE READ
HIGH
LOW
CONFIGURATION
+ T
- T
ALERT
T
T
- T
HYST
HYST
HIGH
LOW
HYST
. A read operation does not reset OT.
TEMPERATURE
*
Overtemperature Alert
THRESHOLD STILL CHANGES TO T
LAST INTERRUPT MISSED, BUT
*
OT
ALERT
*
MAX
HIGH
, and
.
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