MAX6512UT125-T ,Temperature trip threshold 125, +3.0V to +5.5V, low-cost, remote SOT temperature switchFeaturesThe MAX6511/MAX6512/MAX6513 are fully integrated, Continuously Measure External Junctionre ..
MAX6517 ,Low-Cost, 2.7V to 5.5V, Analog Temperature Sensor Switches in a SOT23ApplicationsFan Control Over/UndertemperaturePin ConfigurationsProtectionTest EquipmentTOP VIEWNote ..
MAX6519UKP105+ ,Low-Cost, 2.7V to 5.5V, Analog Temperature Sensor Switches in a SOT23ApplicationsFan Control Over/UndertemperaturePin ConfigurationsProtectionTest EquipmentTOP VIEWNote ..
MAX6519UKP105+T ,Low-Cost, 2.7V to 5.5V, Analog Temperature Sensor Switches in a SOT23FeaturesThe MAX6516–MAX6519 low-cost, fully integrated tem- ♦ High Accuracy ±1.5°C (max) Over -15°C ..
MAX651CPA ,5V/3.3V/3V or Adjustable / High-Efficiency /ApplicationsMAX649MJA -55°C to +125°C 8 CERDIP**5V-to-3.3V Green PC
MAX651CSA ,5V/3.3V/3V or Adjustable / High-Efficiency /ELECTRICAL CHARACTERISTICS(V+ = 5V, T = T to T , unless otherwise noted. Typical values are at T = ..
MB3120 ,Compandor ICBLOCK DIAGRAM
COMPRESSOR
EXPANDOH
INPUT
COMMON
MUTE
COMPRESSOR',
SECTION
COMPRESS ..
MB3516A ,RGB EncoderFUJITSU SEMICONDUCTORDS04-28026-2EDATA SHEETASSP Image ControlRGB EncoderMB3516An DESCRIPTIONThe ..
MB3516APF ,RGB EncoderFUJITSU SEMICONDUCTORDS04-28026-2EDATA SHEETASSP Image ControlRGB EncoderMB3516An DESCRIPTIONThe ..
MB3614 ,QUAD OPERATIONAL AMPLIFIERFUJITSU SEMICONDUCTORDS04-11107-3EDATA SHEETLINEAR ICQUAD OPERATIONAL AMPLIFIERMB3614QUAD OPERATION ..
MB3614P ,Quad operational amplifierelectrical characteristics of current industrial standard operational am-DIP-14P-M02plifier and req ..
MB3614P ,Quad operational amplifierFUJITSU SEMICONDUCTORDS04-11107-3EDATA SHEETLINEAR ICQUAD OPERATIONAL AMPLIFIERMB3614QUAD OPERATION ..
MAX6512UT125-T
Temperature trip threshold 45, +3.0V to +5.5V, low-cost, remote SOT temperature switch
General DescriptionThe MAX6511/MAX6512/MAX6513 are fully integrated,
remote temperature switches that use an external P-N
junction (typically a diode-connected transistor) as the
sensing element to measure the remote temperature.
These devices assert a logic signal when the tempera-
ture crosses a factory-programmed threshold. Available
trip thresholds are from +45°C to +125°C in 10°C incre-
ments. Accuracy is within ±3°C (TA= -5°C to +55°C) or
±5°C (TA= -40°C to +85°C). Hysteresis is pin selec-
table to 5°C or 10°C.
The MAX6511 has an active-low CMOS output and the
MAX6513 has an active-high CMOS output. The
MAX6512 has an open-drain output. The output is
asserted when the temperature exceeds the threshold
value. The active-low open-drain output is intended to
interface with a microprocessor (µP) reset or interrupt
input. The active-high CMOS output can directly drive a
power FET to control a cooling fan.
The MAX6511/MAX6512/MAX6513 operate from a
+3.0V to +5.5V supply and typically consume 400µA of
supply current. They are available in a small 6-pin
SOT23 package.
________________________ApplicationsCPU Temperature Monitoring in High-Speed
Computers
Multichip Modules
Battery Packs
Temperature Control
Temperature Alarms
Fan Control
FeaturesContinuously Measure External Junction
TemperatureFactory-Programmed Temperature Threshold
from +45°C to +125°C in 10°C IncrementsInsensitive to Series Parasitic ResistanceActive-Low CMOS Output (MAX6511) or Open-
Drain Output for Overtemperature Alarm
(MAX6512) or Active-High Output (MAX6513) for
Direct Fan Control<100ms Response TimeAccuracy
±3°C (TREMOTE = +45°C to +125°C, TA= -5°C to +55°C)
±5°C (TREMOTE = +45°C to +125°C, TA= -40°C to +85°C)Pin-Selectable 5°C or 10°C Hysteresis400µA Average Current Consumption+3.0V to +5.5V Supply Range6-Pin SOT23 Package
MAX6511/MAX6512/MAX6513
Low-Cost, Remote SOT Temperature Switches
Pin Configuration19-1819; Rev 1; 11/03
Ordering Information*These parts are offered in nine standard temperature versions
with a minimum order of 2500pieces. To complete the suffix infor-
mation, select an available trip point in degrees centigrade from
the device marking codes table. For example, the
MAX6511UT065-T describes a MAX6511 in a SOT23-6 package
with a +65°C threshold.
Typical Operating Circuit appears at end of data sheet.
MAX6511/MAX6512/MAX6513
Low-Cost, Remote SOT Temperature Switches
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VDD = +3.0V to +5.5V, CS= 2200pF, TA= -40°C to +85°C, TREMOTE= +45°C to +125°C (Note 1), unless otherwise noted. Typical
values are at TA= +25°C.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1:TREMOTE refers to the temperature of the remote-sensing junction. TArefers to the temperature of the MAX6511/MAX6512/
MAX6513 package.
Note 2:All parameters are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by design.
Note 3:This parameter is guaranteed by design to ±3.5 sigma.
Supply Voltage (VDD)...............................................-0.3V to +6V
DXP, DXN, HYST, TOVER (MAX6513),
TOVER(MAX6511/MAX6512)................-0.3V to (VDD+ 0.3V)
TOVER (MAX6513), TOVER(MAX6511)
Output Current....................................................-1mA/+50mA
DXN Input Current...................................................-1mA/+50mA
Current (all other pins)......................................................±20mA
Continuous Power Dissipation (TA= +70°C)
6-Pin SOT23-6 (derate 9.1mW/°C above +70°C)........727mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature
Vapor Phase (60s).......................................................+215°C
Infrared (15s)...............................................................+220°C
MAX6511/MAX6512/MAX6513
Low-Cost, Remote SOT Temperature SwitchesSUPPLY CURRENT
vs. AMBIENT TEMPERATURE
MAX6511 toc01
AMBIENT TEMPERATURE TA (°C)
SUPPLY CURRENT (
TEMPERATURE TRIP THRESHOLD ERROR
vs. AMBIENT TEMPERATURE TA
MAX6511 toc02
AMBIENT TEMPERATURE TA (°C)
TEMPERATURE TRIP THRESHOLD ERROR (
TEMPERATURE TRIP THRESHOLD ERROR
vs. CS CAPACITANCE
MAX6511 toc03
CS CAPACITANCE (nF)
TEMPERATURE TRIP THRESHOLD ERROR (
°C)
TEMPERATURE TRIP THRESHOLD ERROR
vs. SERIES RESISTANCE
MAX6511 toc04
SERIES RESISTANCE (Ω)
TEMPERATURE TRIP THRESHOLD ERROR (
TEMPERATURE TRIP THRESHOLD
vs. SUPPLY VOLTAGE
MAX6511 toc05
SUPPLY VOLTAGE (V)
TEMPERATURE TRIP THRESHOLD ERROR (
°C)
Typical Operating Characteristics(VDD= +3.3V, CS= 2200pF, TA= +25°C, unless otherwise noted.)
Detailed DescriptionThe MAX6511/MAX6512/MAX6513 fully integrated tem-
perature switches incorporate a precision bandgap ref-
erence, a conversion block, a current source, and a
comparator (Figure 1). These devices use an external
P-N junction as the temperature-sensing element. They
steer bias currents through the external diode, measure
the forward voltages, and compute the temperature
using a precision chopper stabilized amplifier.
Resistance values of less than 100Ωin series with the
external sense junction will result in trip-point errors
<1°C. The MAX6511/MAX6512/MAX6513 provide noise
immunity by integration and oversampling of the diode
voltage, but good design practice includes routing the
DXP and DXN lines away from noise sources, such as
high-speed digital lines, switching regulators, induc-
tors, and transformers. The DXP and DXN traces
should be paired together and surrounded by ground
plane whenever possible.
In applications where the temperature changes rapidly,
the measured temperature will be approximately equal
to the average value of the temperature during the
measurement period.
The MAX6512 has an active-low, open-drain output struc-
ture that can only sink current. The MAX6511 has an active-
low CMOS output structure, and the MAX6513 has an
active-high CMOS output.
The MAX6511/MAX6512/MAX6513 are available with
preset temperature thresholds from +45°C to +125°C in
10°C increments.
MAX6511/MAX6512/MAX6513
Low-Cost, Remote SOT Temperature Switches
Pin Description
Hysteresis InputThe HYST pin is a CMOS-compatible input that selects
hysteresis at either a high level (10°C for HYST = VDD)
or a low level (5°C for HYST = GND). Hysteresis pre-
vents the output from chattering when the temperature
is near the trip point. The HYST pin must not float.
The output asserts when the temperature exceeds the
trip point and deasserts when the temperature falls
back below the trip point minus the hysteresis. For
example, if the trip point is 105°C, the output will assert
at 105°C and will not deassert until temperature falls
below 105°C minus the hysteresis (e.g., 95°C if 10°C
hysteresis is chosen) (Figure 2).
Applications Information
Remote-Diode SelectionTo ensure best accuracy, use a good-quality diode-
connected transistor. Suggested devices are listed in
Table 1. Large power transistors are not recommend-
ed. Tight specifications for forward current gain indi-
cate the manufacturer has good process controls and
that the devices have consistent Vbecharacteristics.
The MAX6511/MAX6512/MAX6513 can also measure
the die temperature of CPUs and other integrated cir-
cuits having on-board temperature-sensing diodes.
Use the monitor’s output to reset the µP, assert an inter-
rupt, activate a cooling fan, or trigger an external alarm.
Noise Filtering CapacitorsA quality ceramic capacitor must be connected across
the DXP/DXN inputs to maintain temperature threshold
accuracy by filtering out noise. The capacitor should be
located physically close to the DXP/DXN pins and
should typically have a value of 2200pF. Larger capaci-
tor values can cause temperature measurement errors.
A 50% variation from the recommended capacitor
value can cause up to ±1°C error.
MAX6511/MAX6512/MAX6513
Low-Cost, Remote SOT Temperature Switches
MAX6511/MAX6512/MAX6513
Low-Cost, Remote SOT Temperature Switches
Typical Operating Circuit
Chip Topography TRANSISTOR COUNT: 3300
