General Description
The MAX6513 is a fully integrated, remote temperature
switch that uses an external P-N junction (typically a
diode-connected transistor) as the sensing element to
measure the remote temperature. The device asserts a
logic signal when the temperature crosses a factory-
programmed threshold. Available trip thresholds are
from +45°C to +125°C in 10°C increments. Accuracy is
within ±3°C (T
A
= -5°C to +55°C) or ±5°C (T
A
= -40°C
to +85°C). Hysteresis is pin selectable to 5°C or 10°C.
The MAX6513 has an active-high CMOS output. The
output is asserted when the temperature exceeds the
threshold value. The active-high CMOS output can
directly drive a power FET to control a cooling fan.
The MAX6513 operates from a +3.0V to +5.5V supply
and typically consumes 400µA of supply current. It is
available in a 6-pin lead-free TDFN package.
Applications
CPU Temperature Monitoring in High-Speed
Computers
Multichip Modules
Battery Packs
Temperature Control
Temperature Alarms
Fan Control
Features
♦ Continuously Measure External Junction
Temperature
♦ Factory-Programmed Temperature Threshold
from +45°C to +125°C in 10°C Increments
♦ Insensitive to Series Parasitic Resistance
♦ Active-High Output for Direct Fan Control
♦ < 100ms Response Time
♦ Accuracy
±3°C (T
REMOTE
=
+45°C to +125°C, T
A
= -5°C to +55°C)
±5°C (T
REMOTE
=
+45°C to +125°C, T
A
= -40°C to +85°C)
♦ Pin-Selectable 5°C or 10°C Hysteresis
♦ 400µA Average Current Consumption
♦ +3.0V to +5.5V Supply Range
♦ 6-Pin TDFN Package (Lead(Pb)-Free) with
Exposed Pad
MAX6513
Low-Cost, Remote Temperature Switch
________________________________________________________________
Maxim Integrated Products
1
19-1819; Rev 3; 2/11
Ordering Information
Note: These parts are offered in nine standard temperature
versions with a minimum order of 2500 pieces. To complete
the suffix information, select an available trip point in degrees
centigrade from the device marking codes table. For example,
the MAX6513TT065+T describes a MAX6513 in a 6-pin TDFN
package with a +65°C threshold.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*
EP = Exposed pad.
