MAX6501 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Low-Cost, +2.7V to +5.5V, Micropower Temperature Switches in SOT23 and TO-220

MAX6501, MAX6502
Ultra Small Temperature
Switch with Pin−Selectable
Hysteresis
The MAX6501 and MAX6502 are SOT-23 temperature switches
that require no external components and the design is facilitated with
factory- programmed temperature thresholds. A choice of
factory-trimmed temperature trip points are available. Pin selectable
hysteresis of +2°C or +10°C allows flexibility to the design. These
parts typically consume only 17 µA of current and operate over the
entire -55°C to +125°C temperature range while offering accuracies
of "0.5°C (typ) and "4°C (max).
The MAX6501 has an open drain, active low output, meant for
microprocessor reset control. The MAX6502 has a CMOS, active high
output designed to drive a logic level MOSFET to turn on a fan or
heater element.
The MAX6501/6502 are aimed for hot-temperature monitoring
(+45°C to +115°C). These devices assert a logic signal when the
temperature goes above the threshold.
The MAX6501 and MAX6502 are offered in five standard
temperature thresholds. Available in 5-Pin SOT-23A packages, these
parts are ideal for applications requiring high integration, small size,
low power and low installed cost.
Features
• 5-Pin SOT-23A
• Factory-Programmed Thresholds from +45°C to +115°C in 10°C
Increments
• Pin-Selectable +2°C or +10°C Hysteresis
• "0.5°C (Typ) Threshold Accuracy Over Full Temperature Range
• No External Components Required
• 17 µA Supply Current
Typical Applications
• Thermal Management in PCs and Servers
• Over Temperature Fail Safe Circuits
• Simple Fan Controller
• Temperature Alarms
• Projectors/Printers
• Notebook Computers
• Network Boxes
http://onsemi.com
5
4
1
2
3
SOT-23A
CASE 1212
PIN CONNECTIONS
GND ¹
5 ^TOVER
(T_OVER)*
GND
2
MAX6501
MAX6502
HYST ³
4 V_CC
*For MAX6502
Note: 5-Pin SOT-23A is equivalent to EIAJ SC-74A
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2003
1
February, 2003 - Rev. 2
Publication Order Number:
MAX6501/D