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MAX6505 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX6505
Description  Dual Trip SOT Temperature Switches
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX6505 Datasheet(HTML) 1 Page - Maxim Integrated Products

 
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General Description
The MAX6505–MAX6508 temperature switches have dual
logic outputs that assert when the die temperature cross-
es their trip thresholds. Trip thresholds are factory pro-
grammed to convenient temperatures in 5°C increments.
The MAX6505/MAX6506 have an ALARM output that
asserts when the temperature is above the factory-pro-
grammed thresholds (available from -40°C to +125°C).
They also have a WARN output that asserts when the
temperature is several degrees below the ALARM thresh-
old. The difference between the ALARM and WARN
thresholds (
∆TAW) is pin selectable to +5°C, +10°C,
+20°C, or +30°C. The MAX6505’s logic outputs are open
drain, while the MAX6506’s logic outputs are push-pull.
The MAX6507 has open-drain outputs (OVER, OK), and
the MAX6508 has push-pull outputs (OVER, OK), each
with two factory-programmed threshold temperatures
(TOVER and TUNDER) in the wide range of -40°C to
+125°C. The overtemperature output asserts when the
temperature is above TOVER. When the temperature is in
the desired window (less than TOVER and greater than
TUNDER), OK (OK) asserts.
The MAX6505–MAX6508 are accurate to ±0.5
°C (typ),
±5.5
°C (max). Operating from a +2.5V to +5.5V supply,
these low-cost devices typically consume 30µA supply
current and require no external components for setting
trip points. The MAX6505–MAX6508 are available in a 6-
pin SOT23 package.
________________________Applications
µP Temperature Monitoring in High-Speed
Computers
Temperature Control
Temperature Alarms
Fan Control
Features
o ±0.5°C (typ) Threshold Accuracy Over Full
Temperature Range
o No External Components Required
o Low Cost
o 30µA (typ) Supply Current
o Factory-Programmed Thresholds from -40°C to
+125°C in 5°C Increments
o Open-Drain Outputs (MAX6505/MAX6507),
Push-Pull Outputs (MAX6506/MAX6508)
o Pin Selectable +2°C, +10°C Hysteresis
(MAX6507/MAX6508)
o Pin Selectable +5°C, +10°C, +20°C, +30°C
TALARM - TWARN (MAX6505/MAX6506)
o SOT23-6 Package
*To complete the suffix information for the MAX6505/
MAX6506, add P or N for positive or negative trip tempera-
ture, and select an available trip point in degrees centigrade.
For example, the MAX6505UTP055-T describes a MAX6505 in
a SOT23-6 package with a +55°C threshold (Table 3). Contact
the factory for pricing and availability of temperature versions
(minimum order 10,000 pieces).
**To complete the suffix information for MAX6507/MAX6508,
see Table 4.
Dual Trip SOT Temperature Switches
________________________________________________________________ Maxim Integrated Products
1
Pin Configurations
19-1712; Rev 1; 4/00
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Ordering Information
PART
TEMP. RANGE
PIN-
PACKAGE
MAX6505UT_ _ _ _-T*
-40°C to +125°C
6 SOT23-6
MAX6506UT_ _ _ _-T*
-40°C to +125°C
6 SOT23-6
MAX6507UT_ _ _ _-T**
-40°C to +125°C
6 SOT23-6
MAX6508UT_ _ _ _-T**
-40°C to +125°C
6 SOT23-6
Selector Guide appears at end of data sheet.
Typical Operating Circuits appear at end of data sheet.
TOP VIEW
GND
VCC
S1
16
5
S0
MAX6505
MAX6506
SOT23-6
2
34
WARN
(WARN)
ALARM
(ALARM)
( ) ARE FOR MAX6506.
GND
VCC
S0
16
5
N.C.
MAX6507
MAX6508
SOT23-6
2
34
OK
(OK)
OVER
(OVER)
( ) ARE FOR MAX6508.


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