MAX6626 MAXIM [Maxim Integrated Products], MAX6626 Datasheet
MAX6626
Available stocks
Related parts for MAX6626
MAX6626 Summary of contents
Page 1
... I C-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 ...
Page 2
... MAX6626 MAX6625 MAX6626 T = +25° +3V to +3. ≤ +50°C, V 0° +3.0V to +3. ≤ +70°C, V 0° +3.0V to +3. +3V to +5. MAX6625R, MAX6626R only 4mA L OUT (Programmable through fault queue) V < +3. > +3. MIN TYP MAX UNITS 3 5 ...
Page 3
... 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 will cause self-heating and temperature drift; see 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’ ...
Page 4
Temperature Sensors with 2 I C-Compatible Serial Interface in a SOT23 (V = +3.3V +25°C, unless otherwise noted RESPONSE TO THERMAL SHOCK TEMPERATURE vs. TIME 100 DEVICE IMMERSED IN +85°C FLUORINERT ...
Page 5
... I Byte, Write Word, Read Byte, and Read Word com- mands. 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), V (address 3) ...
Page 6
Temperature Sensors with 2 I C-Compatible Serial Interface in a SOT23 2 -Compatible Figure Timing Diagram 6 _______________________________________________________________________________________ ...
Page 7
Temperature Sensors with 2 I C-Compatible Serial Interface in a SOT23 2 -Compatible Figure Timing Diagram _______________________________________________________________________________________ 7 ...
Page 8
... V S SDA SCL Five registers control the operation of the MAX6625/ MAX6626 (Figure 5 and Tables 2 through 7). The point- er register should be the first addressed and deter- mines which of the other four registers will be acted on. The other four are the temperature, configuration, high- temperature (T ...
Page 9
... MSB MAX6625 Bit 7 Bit 6 (Sign) MSB Bit Bit MAX6625 (Sign D0, MAX6625: Will read all zeros, cannot be written D0, MAX6626: Will read all zeros, cannot be written. D15: MSB is the sign bit. Table 5. Configuration Register Fault Comparator ...
Page 10
... FF80 1111 1111 1000 0000 E700 1110 0111 0000 0000 C900 1100 1001 0000 0000 8000 1000 0000 0000 0000 MAX6626 BINARY HEX LSB 7D00 7CF0 1900 0080 0000 FF80 E700 C900 8000 D0 0 ...
Page 11
... Comparator mode allows autonomous clearing below T . The LOW fault without the intervention of a master and is ideal to use for driving a cooling fan (Figure 7). In interrupt mode, the MAX6625/MAX6626 look for HIGH The OT pin asserts an alarm for an undertemperature fault, as well as for an overtemperature fault, depending on certain conditions ...
Page 12
... MAX6625/MAX6626 sink 4mA with the maximum OT V spec of 0.8V, an additional 3.2mW of power is dissipat- ed within the IC. This corresponds to a 0.35°C rise in the die temperature. Figure 7 shows the MAX6625/MAX6626 used as a tem- perature-triggered fan controller. Figure 8 shows the MAX6625/MAX6626 used as a thermostat to control a heating element. ...
Page 13
... MAX6625RMUT Internal Pullup Open Drain MAX6626RMUT Internal Pullup (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied ...