MAX6662MSA Maxim Integrated Products, MAX6662MSA Datasheet

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MAX6662MSA

Manufacturer Part Number
MAX6662MSA
Description
Board Mount Temperature Sensors
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX6662MSA

Full Temp Accuracy
+/- 2.5 C
Package / Case
SOIC-8 Narrow
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
Output Type
Digital
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Part Number
Manufacturer
Quantity
Price
Part Number:
MAX6662MSA
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX6662MSA+T
Manufacturer:
MAXIM
Quantity:
120
Part Number:
MAX6662MSA-
Manufacturer:
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Quantity:
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The MAX6662 is a 12-bit + sign temperature sensor
combined with a programmable overtemperature alarm
and a 3-wire (SPI™-compatible) serial interface in a sin-
gle package. It converts its die temperature into digital
values using an internal analog-to-digital converter
(ADC). The temperature data is stored in a temperature
register as a 13-bit word, which allows 0.0625°C resolu-
tion. The temperature data is readable at any time
through the serial interface. The operating temperature
range is -55°C to +150°C.
The MAX6662 provides two programmable watchdog
interrupt outputs. ALERT is used for lower temperature
warning functions, while OT is used for higher tempera-
ture-critical functions, such as power-supply shutdown.
The MAX6662 features a shutdown mode that saves
power by disabling everything except the serial inter-
face. The temperature sensor is available in an 8-pin SO
package.
19-2121; Rev 0; 7/01
SPI is a trademark of Motorola, Inc.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
SOURCES
HEAT
HVAC
Refrigeration
Automotive
Test Equipment
V
Typical Operating Circuit
MAX6662
CC
________________________________________________________________ Maxim Integrated Products
12-Bit + Sign Temperature Sensor with
V
General Description
0.1μF
CC
ALERT
SCLK
= +3V TO +5.5V
SIO
CS
OT
10kΩ
Applications
SPI-Compatible Serial Interface
10kΩ
♦ 12-Bit + Sign, 0.0625°C Resolution
♦ Accuracy
♦ Extended Temperature Measurement Range
♦ Low Average Supply Current, 125μA (typ)
♦ Shutdown Mode to Minimize Power Consumption
♦ Two Programmable Temperature Fault Outputs
♦ Switchable Fault Queue to Eliminate False
in Portable Applications
Tripping in Noisy Environments
MAX6662MSA
±1°C max (+30°C to +50°C)
±1.6°C max (0°C to +70°C)
±2.5°C max (-20°C to +85°C)
±2.5 typ (+150°C)
-55°C to +150°C
TOP VIEW
PART
SCLK
GND
SIO
CS
1
2
4
3
-55°C to +150°C
Ordering Information
TEMP. RANGE
MAX6662
SO
Pin Configuration
6
8
7
5
V
NC
ALERT
OT
CC
PIN-PACKAGE
8 SO
Features
1

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MAX6662MSA Summary of contents

Page 1

... Low Average Supply Current, 125μA (typ) ♦ Shutdown Mode to Minimize Power Consumption in Portable Applications ♦ Two Programmable Temperature Fault Outputs ♦ Switchable Fault Queue to Eliminate False Tripping in Noisy Environments PART MAX6662MSA TOP VIEW 10kΩ Features Ordering Information TEMP. RANGE PIN-PACKAGE -55° ...

Page 2

Sign Temperature Sensor with SPI-Compatible Serial Interface ABSOLUTE MAXIMUM RATINGS All Voltages Are Referenced to GND V ...........................................................................-0.3V to +6V CC ALERT, OT................................................................-0.3V to +6V SIO, SCLK, CS............................................-0. SIO Current .......................................................-10mA to +50mA Continuous Current into ...

Page 3

Sign Temperature Sensor with ELECTRICAL CHARACTERISTICS (continued +3V to +5.5V -55°C to +125°C, unless otherwise noted. Typical values are PARAMETER SYMBOL SERIAL INTERFACE TIMING Serial Clock Frequency SCLK High Pulse ...

Page 4

Sign Temperature Sensor with SPI-Compatible Serial Interface (V = +3V +25°C, unless otherwise noted PIN NAME 1 SCLK Serial-Clock Input CS 2 Chip Select Input. Set low to enable the serial interface for data ...

Page 5

Sign Temperature Sensor with -BIT + SIGN ADC Figure 1. MAX6662 Simplified Functional Diagram For example set to 100°C and T HIGH to 20°C, ALERT does not assert until temperature exceeds 100°C. ...

Page 6

Sign Temperature Sensor with SPI-Compatible Serial Interface Temperature Fault Queue The activation of ALERT and OT is subject to the depth of the fault queue. If the Fault Queue bit in the Configuration register is enabled, ALERT or ...

Page 7

Sign Temperature Sensor with Table 2. Command Codes for the Temperature Limit Registers COMMAND DESCRIPTION C1h Temperature register read C3h Configuration register read C5h T register read HYST C7h T register read MAX C9h T register read LOW ...

Page 8

Sign Temperature Sensor with SPI-Compatible Serial Interface Table 3. Output Code vs. Temperature TEMPERATURE (°C) +150.0000 0100 1011 0000 0xxx +125.0000 0011 1110 1000 0xxx +25.0000 0000 1100 1000 0xxx +0.0625 0000 0000 0000 1xxx 0.0000 0000 0000 ...

Page 9

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9 © 2001 Maxim Integrated Products ...

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