MAX6509_03 Datasheet, PDF (1/8 Pages) Maxim Integrated Products – Resistor-Programmable SOT Temperature Switches

19-1617; Rev 2; 11/03
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 exter-
nal resistor to set the temperature threshold within a
wide -40°C to +125°C temperature range. The MAX6509
provides 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 accura-
cy of ±0.5°C (typ) or ±4.7°C (max). They typically con-
sume 32µA supply current. Hysteresis is pin selectable
to 2°C or 10°C.
The MAX6509/MAX6510 are available in 5-pin and 6-pin
SOT23 packages, respectively.
____________________________Features
o ±0.5°C Threshold Accuracy
o ±4.7°C (max) Threshold Accuracy (-40°C to +125°C)
o Temperature Threshold Set by a 1% External
Resistor
o Set-Hot or Set-Cold Option
o Low 32µA Supply Current
o Open-Drain, Push-Pull Outputs;
Open-Drain with Internal Pull-Up Resistor
o Pin-Selectable 2°C or 10°C Hysteresis
o SOT23 Packages
________________________Applications
µP Temperature Monitoring in High-Speed
Computers
Temperature Control
Temperature Alarms
Fan Control
Automotive
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
*A minimum order of 2500 pc. is required for SOT packages.
**See Table 1 for selectable output options.
Typical Operating Circuit
0.1µF
R_SET
+2.7V TO +5.5V
V_CC
V_CC
SET ^MAX6509 OUT
MAX6510 _(OUT)
(OUTSET)
GND HYST
INT µP
GND
GND
( ) ARE FOR MAX6510.
Pin Configurations
TOP VIEW
SET 1
5 VCC
MAX6509
GND 2
SET 1
6 V_CC
MAX6510
GND 2
5 _OUTSET
OUT 3
4 HYST OUT, OUT 3
4 HYST
SOT23-5
SOT23-6
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