MAX6625 Fast Delivery |IC PHOENIX CO.,LIMITED

MAX6625 ,9-Bit/12-Bit Temperature Sensors with IApplicationsAbsolute Maximum Ratings section.● Fan Control**EP = Exposed pad.● Temperature Alarms# ..
MAX6625PMTT+T ,9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface in a SOT23ApplicationsAbsolute Maximum Ratings section.● Fan Control**EP = Exposed pad.● Temperature Alarms# ..
MAX6625RMUT-T ,9-Bit/12-Bit Temperature Sensors with I2C-Compatible Serial Interface in a SOT23ApplicationsM A X6 62 6 P M UT - T * -55°C to +125°C 6 SOT23-6Fan ControlMAX6626RMUT-T* -55°C to + ..
MAX6627MKA#TG16 ,Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial InterfaceFeatures● AccuracyThe MAX6627/MAX6628 precise digital temperature • ±1°C (max) from 0°C ≤ T ≤ +125 ..
MAX6627MKA+ ,Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial InterfaceElectrical Characteristics(3.0V ≤ V ≤ 5.5V, -55 °C ≤ T ≤ +125 °C, unless otherwise noted. Typical v ..
MAX6627MKA-T ,Remote 1C Accurate Digital Temperature Sensors with SPI-Compatible Serial InterfaceFeaturesThe MAX6627/MAX6628 precise digital temperature Accuracy sensors report the temperature of ..
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MAX6625
9-Bit/12-Bit Temperature Sensors with I
General Description
The MAX6625/MAX6626 combine a temperature sensor, a
programmable overtemperature alarm, and an I2C-compatible
serial interface into single compact packages. They convert
their die temperatures into digital values using internal analog-
to-digital converters (ADCs). The result of the conversion is
held in a temperature register, readable at any time through
the serial interface. A dedicated alarm output, OT, activates
if the conversion result exceeds the value programmed in
the high-temperature register. A programmable fault queue
sets the number of faults that must occur before the alarm
activates, preventing spurious alarms in noisy environments.
OT has programmable output polarity and operating modes.
The MAX6625/MAX6626 feature a shutdown mode that
saves power by turning off everything but the power-on
reset and the I2C-compatible interface. Four separate
addresses can be configured with the ADD pin, allowing
up to four MAX6625/MAX6626 devices to be placed on
the same bus. The MAX6625P/MAX6626P OT outputs
are open drain, and the MAX6625R/MAX6626R OT outputs
include internal pullup resistors.
The MAX6625 has a 9-bit internal ADC and can function
as a replacement for the LM75 in most applications. The
MAX6626 has a 12-bit internal ADC. Both devices come
in the space-saving 6-pin SOT23 package, or the 6-pin
TDFN package.
Applications●Fan Control●Temperature Alarms●System Temperature Control●Industrial Equipment
Features●9-Bit Temperature-to-Digital Converter (MAX6625)●12-Bit Temperature-to-Digital Converter (MAX6626)●I2C-Compatible Serial Interface●Up to Four Devices on a Single Bus●Versatile Alarm Output with Programmable Trip emperature and Hysteresis●Low-Power Shutdown Mode●Space-Saving TDFN or SOT23 Packages●Lead-Free Version Available (TDFN Package)
Ordering Information is continued at end of data sheet.
*For device options, see Selector Guide at end of data sheet.
Requires special solder temperature profile described in the
Absolute Maximum Ratings section.
**EP = Exposed pad.
# Indicates an RoHS-compliant part
Ordering Information
Pin ConigurationTypical Operating Circuit
PARTTEMP RANGEPIN-PACKAGE
MAX6625PMUT*-55°C to +125°C6 SOT23
MAX6625RMUT*-55°C to +125°C6 SOT23
MAX6625PMTT*-55°C to +125°C6 TDFN-EP**
MAX6625RMTT*-55°C to +125°C6 TDFN-EP**
MAX6626PMUT*-55°C to +125°C6 SOT23
MAX6626RMUT*-55°C to +125°C6 SOT23
MAX6626PMTT*-55°C to +125°C6 TDFN-EP**
MAX6626RMTT*-55°C to +125°C6 TDFN-EP**
GND
**EP = EXPOSED PAD
SCLVSADD
SDA
MAX6625
MAX6626
SOT236
TDFN-EP**
TOP VIEW4
0.1µF
MAX6625
MAX6626SCL
TO I2C
MASTER
10kΩ
(OMIT FOR MAX6625R
AND MAX6626R)
SDA2
1kΩ1kΩ
OT OUTPUT
MAX6625/MAX66269-Bit/12-Bit Temperature Sensors with 2C-Compatible Serial Interface in a SOT23
VS to GND ...............................................................-0.3V to +6V
OT, SCL, SDA to GND ............................................-0.3V to +6V
ADD to GND ................................................-0.3V to (VS + 0.3V)
Current into Any Pin ...........................................................±5mA
OT Sink Current .................................................................20mA
Continuous Power Dissipation6-Pin SOT23 (derate 9.1mW/°C above +70°C) ..........727mW6-Pin TDFN (derate 23.8mW/°C above +70°C) ........1905mW
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................-60°C to +150°C
ESD Rating (Human Body Model) ....................................2000V
Lead Temperature ............................................................Note 1
(+3V ≤ VS ≤ +5.5V, TA = -55°C to +125°C, unless otherwise noted.)
Note 1: This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device can
be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recommended
in the industry-standard specification, IPC/JEDEC J-STD-020A, paragraph 7.6, Table 3 for IR/VPR and Convection Reflow.
Preheating is required. Hand or wave soldering is not allowed.
Absolute Maximum Ratings
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.
Electrical Characteristics
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Power-Supply Voltage VS3.05.5V
Quiescent CurrentIC
I2C-compatible active1mA
I2C-compatible inactive250µA
Shutdown mode1µA
ADC ResolutionMAX66259Bits
MAX662612
Temperature Resolution
MAX66250.5
°C/LSBMAX66260.0625
Accuracy (Notes 2, 3)
TA = +25°C, VS = +3V to +3.6V±10°C = TA ≤ +50°C, VS = +3.0V to +3.6V±1.5
0°C = TA ≤ +70°C, VS = +3.0V to +3.6V±2.0
Power-Supply SensitivityVS = +3V to +5.5V1°C/V
Conversion TimetC133ms
OT Pullup ResistorRPMAX6625R, MAX6626R only2550kΩ
OT Saturation Voltage (Note 4)VLIOUT = 4mA (Note 4) 0.8V
OT Delay(Programmable through fault queue)1 x tC6 x tCms
THIGH Default TemperatureTHIGH80°C
TLOW Default TemperatureTLOW75°C
I2C-Compatible I/O: SCL, SDA, ADD
Input High VoltageVIH
VS < +3.6V2VS > +3.6V3
Input Low VoltageVIL0.8V
Input Hysteresis0.2V
MAX6625/MAX66269-Bit/12-Bit Temperature Sensors with 2C-Compatible Serial Interface in a SOT23
(+3V ≤ VS ≤ +5.5V, TA = -55°C to +125°C, unless otherwise noted.)
Note 2: Guaranteed by design and characterization to ±5 sigma.
Note 3: Quantization error not included in specifications for temperature accuracy.
Note 4: Output current should be minimized for best temperature accuracy. Power dissipation within the MAX6625/MAX6626
causes self-heating and temperature drift; see the Thermal Considerations section.
Note 5: A master device must provide a hold time of at least 300ns for the SDA signal in order to bridge the undefined region of
SCL’s falling edge.
Note 6: CB = total capacitance of one bus line in pF. Tested with CB = 400pF.
Note 7: Input filters on SDA, SCL, and ADD suppress noise spikes less than 50ns.
Electrical Characteristics (continued)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Input High Leakage CurrentIIHVIN = +5V±1µA
Input Low Leakage CurrentIILVIN = 0±1µA
Input CapacitanceCIN10pF
Output Low VoltageVOLIOL = 3mA0.4V
Output High CurrentIOHVOH = 5V1µA
I2C-Compatible TIMING (Figure 1)
Serial Clock FrequencyfSCLDC400kHz
Bus Free Time Between STOP
and START ConditionstBUF1.3µs
START Condition Hold Time tHD:STA0.6µs
STOP Condition Setup TimetSU:STO0.6µs
Clock Low PeriodtLOW1.3µs
Clock High PeriodtHIGH0.6µs
Data Setup Time tSU:DAT100ns
Data Hold TimetHD:DAT(Note 5)00.9µs
Maximum Receive SCL/SDA
Rise Time tR(Note 6)300ns
Minimum Receive SCL/SDA
Rise TimetR(Note 6)20 +
0.1CBns
Maximum Receive SCL/SDA
Fall TimetF(Note 6)300ns
Minimum Receive SCL/SDA
Fall TimetF(Note 6)20 +
0.1CBns
Transmit SDA Fall TimetFCB = 400pF, IO = 3mA (Note 6)20 +
0.1CB250ns
Pulse Width of Suppressed SpiketSP(Note 7)50ns
SCL
SDAtLOW
tSU:DATtHD:STAtHD:DATtSU:STO
tBUF
tHIGH
MAX6625/MAX66269-Bit/12-Bit Temperature Sensors with 2C-Compatible Serial Interface in a SOT23
(VS = +3.3V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
RESPONSE TO THERMAL SHOCK
TEMPERATURE vs. TIME
MAX6625 toc01
TIME (s)
OUTPUT TEMPERATURE (°C)
DEVICE IMMERSED IN +85°C
FLUORINERT BATH
DYNAMIC QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
MAX6625 toc03
TEMPERATURE (°C)
INPUT CURRENT (µA)
STATIC QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
MAX6625 toc02
TEMPERATURE (°C)
INPUT CURRENT (µA)
TEMPERATURE ERROR
vs. TEMPERATURE
MAX6625 toc04
TEMPERATURE (°C)
TEMPERATURE ERROR (°C)
MAXIMUM LIMIT
5 SIGMA RANGE
MINIMUM LIMIT
PINNAMEFUNCTIONSDAI2C-Compatible Serial Bidirectional Data LineGNDPower-Supply GroundSCLI2C-Compatible Clock InputOTTemperature Alarm OutputADDI2C-Compatible Address Set Pin: Ground (0), VS (1), SDA (2), SCL (3); see Table 1.VSPower-Supply Input, +3V to +5.5V. Bypass VS to GND with a 0.1µF capacitor.EPExposed Paddle. Internally connected to GND. Connect to a large ground plane for maximum
thermal dissipation.
Pin Description
MAX6625/MAX66269-Bit/12-Bit Temperature Sensors with 2C-Compatible Serial Interface in a SOT23
Detailed Description
The MAX6625/MAX6626 continuously convert their die
temperatures into digital values using their self-contained
delta-sigma ADCs. The resulting data is readable at
any time through the I2C-compatible serial interface. A
dedicated alarm output asserts if the result exceeds the
value in the programmable high-temperature register. A
programmable fault queue sets the number of faults that
must occur before the alarm asserts, preventing spurious
alarms in noisy environments. The alarm output polarity is
selectable and deasserts based on either of two operating
modes, comparator or interrupt. In comparator mode, the
OT output deasserts if the temperature conversion result
falls below the programmable low-temperature register
value (subject to the fault queue conditions) providing
adjustable hysteresis. In interrupt mode, the OT output
deasserts when any register is read through the serial
interface. Each conversion cycle takes about 130ms. At
power-up, the temperature register is set to 8000h until
the first conversion is completed.
The MAX6625/MAX6626 feature a shutdown mode,
accessible through the serial interface, that saves power
by turning off everything but the power-on reset and the
I2C-compatible interface. While in shutdown mode, the
temperature register is set to 8000h. The device func-
tions as a slave on the I2C-compatible bus supporting
Write Byte, Write Word, Read Byte, and Read Word
commands. Four separate addresses can be configured
with the ADD pin, allowing up to four MAX6625/MAX6626
devices to be placed on the same bus. Figure 2 shows the
functional diagram of the MAX6625/MAX6626.
Serial interface2C-Compatible Operation
The MAX6625/MAX6626 are readable and programma-
ble through their I2C-compatible serial interface. Figures 3
and 4 show the timing details of the clock (SCL) and data
(SDA) signals. The device functions as a slave on the
I2C-compatible bus and supports Write Byte, Write Word,
Read Byte, and Read Word commands.
Addressing
Four separate addresses can be configured with the ADD
pin, allowing up to four MAX6625/MAX6626s to be placed
on the same bus. The address is selected by connecting
the ADD pin to either of four places: GND (address 0), VS
(address 1), SDA (address 2), or SCL (address 3). Table
1 shows the full I2C-compatible address for each state.
Figure 2. Functional Diagram
MAX6625
MAX6626
TEMPERATURE REGISTER
THIGH REGISTER
+Vs
GND
SDA
SCL
ADD
SERIAL BUS INTERFACE
TLOW REGISTER
SET-POINT
COMPARATORADDRESS
POINTER
REGISTER
BANDGAP
REGISTERADC
REFERENCE
TEMP SIGNAL
FAULT
QUEUE
COUNTER
CONFIGURATION REGISTER
MAX665_ R
ONLY
MAX6625/MAX66269-Bit/12-Bit Temperature Sensors with 2C-Compatible Serial Interface in a SOT23
ADDRESS
BYTE
ADDRESS
BYTE
ADDRESS
BYTE
(a) TYPICAL POINTER SET FOLLOWED BY IMMEDIATE READ FROM CONFIGURATION REGISTER
(b) CONFIGURATION REGISTER WRITE
(c) T
HIGH
AND T
LOW
WRITE
POINTER
BYTE
POINTER
BYTE
POINTER
BYTE
MOST-SIGNIFICANT
DATA BYTE
LEAST-SIGNIFICANT
DATA BYTE
CONFIGURATION
BYTE
ADDRESS
BYTE
DATABYTE
ACK BY
MAX6625
ACK BY
MAX6625
ACK BY
MAX6625
ACK BY
MAX6625
ACK BY
MAX6625
ACK BY
MAX6625
ACK BY
MAX6625
START
MASTER
START
MASTER
START
MASTER
REPEAT
START
MASTER
ACK BY
MASTER
STOP
COND BY
MASTER
ACK BY
MAX6625
ACK BY
MAX6625
STOP
COND BY
MASTER
STOP
COND BY
MASTER
ACK BY
MAX6625
MAX6625/MAX66269-Bit/12-Bit Temperature Sensors with 2C-Compatible Serial Interface in a SOT23
ADDRESS
BYTE
ADDRESS BYTE
ADDRESS
BYTE
ADDRESS
BYTE
DATABYTE
(a) TYPICAL 2-BYTE READ FROM PRESET POINTER LOCATION SUCH AS TEMP, T
HIGH
, T
LOW
(b) TYPICAL POINTER SET FOLLOWED BY IMMEDIATE READ FOR 2-BYTE REGISTER SUCH AS TEMP, T
HIGH
, T
LOW
(c) TYPICAL 1-BYTE READ FROM CONFIGURATION REGISTER WITH PRESET POINTER
MOST-SIGNIFICANT
DATA BYTE
LEAST-SIGNIFICANT
DATA BYTE
POINTER BYTE
MOST-SIGNIFICANT
DATA BYTE
LEAST-SIGNIFICANT
DATA BYTE
ACK BY
MAX6625
ACK BY
MASTER
ACK BY
MAX6625
ACK BY
MAX6625
ACK BY
MASTER
ACK BY
MAX6625
ACK BY
MASTER
START
MASTER
START
MASTER
REPEAT
START
MASTER
START
MASTER
STOP
COND BY
MASTER
STOP
COND BY
MASTER
STOP
COND BY
MASTER
NO ACK BY
MASTER
NO
ACK BY
MASTER
NO
ACK BY
MASTER
MAX6625/MAX66269-Bit/12-Bit Temperature Sensors with 2C-Compatible Serial Interface in a SOT23

Partno	Mfg	Dc	Qty	Available	Descript
MAX6625	MAXIM	N/a	42	avai	9-Bit/12-Bit Temperature Sensors with I