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MAX6505UTP125+

P1-P3P4-P6P7-P9P10-P10
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 (ΔT
AW
) 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
(T
OVER
and T
UNDER
) in the wide range of -40°C to
+125°C. The overtemperature output asserts when the
temperature is above T
OVER
. When the temperature is in
the desired window (less than T
OVER
and greater than
T
UNDER
), 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
♦ ±0.5°C (typ) Threshold Accuracy Over Full
Temperature Range
♦ No External Components Required
♦ Low Cost
♦ 30µA (typ) Supply Current
♦ Factory-Programmed Thresholds from -40°C to
+125°C in 5°C Increments
♦ Open-Drain Outputs (MAX6505/MAX6507),
Push-Pull Outputs (MAX6506/MAX6508)
♦ Pin Selectable 2°C, 10°C Hysteresis
(MAX6507/MAX6508)
♦ Pin Selectable +5°C, +10°C, +20°C, +30°C
T
ALARM
- T
WARN
(MAX6505/MAX6506)
♦ SOT23 Package
Note: 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 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.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MAX6505–MAX6508
Dual Trip SOT Temperature Switches
________________________________________________________________
Maxim Integrated Products
1
Pin Configurations
19-1712; Rev 1; 2/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
PART TEMP RANGE PIN-PACKAGE
MAX6505UT_ _ _ _+T
-40°C to +125°C 6 SOT23
MAX6506UT_ _ _ _+T
-40°C to +125°C 6 SOT23
MAX6507UT_ _ _ _+T
-40°C to +125°C 6 SOT23
MAX6508UT_ _ _ _+T -40°C to +125°C 6 SOT23
Selector Guide appears at end of data sheet.
TOP VIEW
GND
V
CC
S1
16
+
5 S0
MAX6505
MAX6506
SOT23
2
34
WARN
(WARN)
ALARM
(ALARM)
( ) ARE FOR MAX6506.
GND
V
CC
S0
16
5 N.C.
MAX6507
MAX6508
SOT23
2
34
OK
(OK)
OVER
(OVER)
( ) ARE FOR MAX6508.
+
Typical Operating Circuits appear at end of data sheet.
MAX6505–MAX6508
Dual Trip SOT Temperature Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.5V to +5.5V, R
PULLUP
= 100kΩ (MAX6505/MAX6507 only), T
A
= -40°C to +125°C, unless otherwise noted. Typical values
are at T
A
= +25°C and V
CC
= +5V, unless otherwise noted.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (V
CC
to GND) ..................................-0.3V to +6V
S1, S0 to GND ............................................-0.3V to (V
CC
+ 0.3V)
All Other Pins to GND.................................-0.3V to (V
CC
+ 0.3V)
Input/Output Current, All Pins...........................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
SOT23 (derate 8.7mW/°C above +70°C)....................696mW
Operating Temperature Range (T
MIN
to T
MAX
) ..-40°C to +125°C
Thermal Resistance (θ
JA
)...............................................115°C/W
Storage Temperature Range .............................-65°C to +150°C
Maximum Die Temperature..............................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
CC
2.5 5.5 V
S0 = S1 = GND
MAX6505/
MAX6506
40 80
Supply Current I
CC
S0 = GND
MAX6507/
MAX6508
30 60
μA
-40°C to 0 ° C -5.5 ±0.5 5.5
0°C to +95 ° C -3.5 ±0.5 3.5
Temperature Threshold
Accuracy (Note 2)
ΔT
TH
+95°C to +125 ° C -4 ±0.5 4
°C
S1 = GND, S0 = GND 5
S1 = GND, S0 = V
CC
10
S1 = V
CC
, S0 = GND 20
Delta Temperature
(T
ALARM
-T
WARNING
)
MAX6505/MAX6506
ΔT
AW
S1 = V
CC
, S0 = V
CC
30
°C
ALARM (MAX6505/MAX6506) 2
ΔT
AW
= 5°C or
10°C
5
WARN
(MAX6505/MAX6506)
ΔT
AW
= 20°C or
30°C
10
S0 = GND 2
Temperature Threshold
Hysteresis (Note 3)
T
HYST
OK, OVER
(MAX6507/MAX6508)
S0 = V
CC
10
°C
V
IH
0.8 x
V
CCLogic Input Levels (S1, S0)
V
IL
0.8
V
I
SOURCE
= 500μA, V
CC
> 2.5V
0.8 x
V
CC
Output Voltage High
(MAX6506/MAX6508)
V
OH
I
SOURCE
= 800μA,V
CC
> 4.5V
V
CC
-1.5
V
I
SINK
= 3.2mA, V
CC
> 2.5V 0.5
Output Voltage Low V
OL
I
SINK
= 5mA, V
CC
> 4.5V 0.5
V
MAX6505–MAX6508
Dual Trip SOT Temperature Switches
_______________________________________________________________________________________
3
20
30
25
40
35
45
50
-40 -10 5 20-25 35 50 65 80 95 110 125
SUPPLY CURRENT
vs. TEMPERATURE
MAX6505/8-01
TEMPERATURE (
°
C)
SUPPLY CURRENT (µA)
V
CC
= +5V
R
PULLUP
= 100kΩ
0.5
1.0
1.5
2.0
2.5
-40 -10 5-25 20 35 50 65 80 95 110 125
HYSTERESIS vs. TRIP TEMPERATURE
MAX6505/8-02
TEMPERATURE (
°
C)
HYSTERESIS (°C)
V
CC
= +5V
R
PULLUP
= 100kΩ
-0.8
-0.6
-0.7
-0.3
-0.4
-0.5
0
-0.1
-0.2
0.1
2.5 3.53.0 4.0 4.5 5.0 5.5
TRIP-POINT ERROR (%)
vs. SUPPLY VOLTAGE
MAX6505/8-03
SUPPLY VOLTAGE (V)
TRIP-POINT ERROR (%)
NORMALIZED TO TRIP-POINT
TEMPERATURE AT V
CC
= +5V
MAX6505
STARTUP AND POWER-DOWN
(T < T
TH
)
MAX6505/8-04
A
B
A: V
CC
PULSE
B: ALARM VOLTAGE, R
PULLUP
= 100kΩ
100µs/div
2V/div
MAX6505
STARTUP DELAY
(T > T
TH
)
MAX6505/8-05
A
B
A: V
CC
PULSE
B: ALARM VOLTAGE, R
PULLUP
= 100kΩ
100µs/div
2V/div
Typical Operating Characteristics
(V
CC
= +5V, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.5V to +5.5V, R
PULLUP
= 100kΩ (MAX6505/MAX6507 only), T
A
= -40°C to +125°C, unless otherwise noted. Typical values
are at T
A
= +25°C and V
CC
= +5V, unless otherwise noted.) (Note 1)
Note 1: 100% production tested at T
A
= +25°C. Specifications over temperature limits are guaranteed by design.
Note 2: T
ALARM
, T
UNDER
, and T
OVER
are factory-programmed temperature trip thresholds from -40°C to +125°C in 5°C increments.
Note 3: Temperature threshold hysteresis is defined as the difference from positive-going temperature thresholds minus the nega-
tive-going temperature thresholds.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
CC
= 5.5V, V
ALARM
= 5.5V,
V
WARN
= 5.5V (MAX6505)
1
Open-Drain Output Leakage
Current
V
CC
= 5.5V, V
OK
= 5.5V,
V
OVER
= 5.5V (MAX6507)
1
μA
P1-P3P4-P6P7-P9P10-P10

MAX6505UTP125+

Mfr. #:
Buy MAX6505UTP125+
Manufacturer:
Maxim Integrated
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Lifecycle:
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