Datasheet

General Description
The MAX6509/MAX6510 are fully integrated, resistor-
programmable temperature switches with thresholds set
by an external resistor. They require only one external
resistor to set the temperature threshold within a wide
-40°C to +125°C temperature range. The MAX6509 pro-
vides an open-drain output. The MAX6510 features three
selectable output options: active-low, active-high, and
open drain with an internal pull-up resistor.
These switches operate with a +2.7V to +5.5V single
supply while providing a temperature threshold accuracy
of ±0.5°C (typ) or ±4.7°C (max). They typically consume
32µA supply current. Hysteresis is pin selectable to 2°C
or 10°C.
The MAX6509/MAX6510 re available in 5-pin and 6-pin
SOT23 packages, respectively.
Applications
● µP Temperature Monitoring in High-Speed
Computers
● Temperature Control
● Temperature Alarms
● Fan Control
Features
● ±0.5°C Threshold Accuracy
● ±4.7°C (max) Threshold Accuracy (-40°C to +125°C)
● Temperature Threshold Set by a 1% External
Resistor
● Set-Hot or Set-Cold Option
● Low 32µA Supply Current
● Open-Drain, Push-Pull Outputs;
Open-Drain with Internal Pull-Up Resistor
● Pin-Selectable 2°C or 10°C Hysteresis
● SOT23 Packages
+Denotes a lead(Pb)-free/RoHS-compliant package.
*A minimum order of 2500 pc. is required for SOT packages.
**See Table 1 for selectable output options.
PART
TEMP
RANGE
PIN-
PACKAGE
TOP
MARK
MAX6509CAUK+T -40°C to +125°C 5 SOT23-5 ADNT
MAX6509HAUK+T -40°C to +125°C 5 SOT23-5 ADNU
MAX6510CAUT+T** -40°C to +125°C 6 SOT23-6 AAHA
MAX6510HAUT+T** -40°C to +125°C 6 SOT23-6 AAHB
GND
V
CC
OUT
1
+
5SET
MAX6509
SOT23-5
TOP VIEW
2
3 4
GND
HYSTOUT, OUT
HYST
1 6 V
CC
OUTSET
SET
MAX6510
SOT23-6
2
3 4
5
+
GND
( ) ARE FOR MAX6510.
+2.7V TO +5.5V
HYST
GND(OUTSET)
INT
GND
µP
0.1µF
V
CC
V
CC
SET
R
SET
OUT
(OUT)
MAX6509
MAX6510
MAX6509/MAX6510 Resistor-Programmable
SOT Temperature Switches
19-1617; Rev 4; 4/14
Pin CongurationsTypical Operating Circuit
Ordering Information