MAX6509/MAX6510
Resistor-Programmable
SOT Temperature Switches
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
Ordering Information
PART
TEMP
RANGE
PIN-
TOP
PACKAGE 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
+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.
Typical Operating Circuit
+2.7V TO +5.5V
0.1µF
RSET
VCC
VCC
SET
MAX6509
MAX6510
OUT
(OUT)
INT µP
(OUTSET) GND
GND HYST
GND
( ) ARE FOR MAX6510.
Pin Configurations
TOP VIEW
+
SET 1
5 VCC
MAX6509
GND 2
+
SET 1
6 VCC
MAX6510
GND 2
5 OUTSET
OUT 3
4 HYST OUT, OUT 3
4 HYST
SOT23-5
SOT23-6
19-1617; Rev 4; 4/14