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Name: MAX1978ETM+TW
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX1978ETM+TW
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc./Maxim Integrated MAX1978ETM+TW

Part No.:: MAX1978ETM+TW

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 48-WFQFN Exposed Pad

Datasheet:

Description:: INTEGRATED TEMPERATURE CONTROLLE

In Stock:: 2058

Quantity:: Add To Cart

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MAX1978ETM+TW Specifications

Package/Case:
48-WFQFN Exposed Pad
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Active
Applications:
Peltier Module, Thermoelectric Cooler
Current-Supply:
30mA
Voltage-Supply:
3V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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MAX1978ETM+TW information

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MAX1978ETM+TW Typical application Circuitry

MAX1978ETM+TW

The MAX1978ETM+TW is part of the MAX1978 series from Maxim Integrated, a family of precision temperature controllers designed for Peltier thermoelectric cooler (TEC) modules. These controllers are widely used in systems that require exact temperature control, such as laser diode modules in optical transceivers and biomedical instruments. The MAX1978 series is appreciated for its integrated PID control loop and the capability to automatically manage the direction of the TEC current to either heat or cool the load to the desired setpoint.

1. TEC+ and TEC- (TEC Output Pins): These pins provide controlled current to the TEC module. They are directly connected to the TEC to regulate the temperature of the load.

2. SNS+ and SNS- (Temperature Sensor Inputs): Attach these pins to a temperature sensing device, like a thermistor, placed at or near the load to provide real-time temperature feedback to the controller.

3. VDD (Supply Voltage) and GND (Ground): The VDD pin connects to the power source, while GND is tied to the system's ground to power the controller.

4. SET (Setpoint Voltage Input): The SET pin is connected to a voltage reference or a resistive divider that sets the target temperature for the TEC.

5. D (Maximum TEC Current Set): Connect a resistor to this pin to establish the maximum allowable current for the TEC, preventing overcurrent conditions.

6. GAIN (PID Gain Adjustment): The GAIN pin is adjusted with external components to tune the PID loop for stable temperature control.

7. FB+ and FB- (Feedback Inputs): These pins connect to a feedback network for precise control of the TEC based on the temperature feedback.

8. EN (Enable Pin): This pin is used to turn the controller on or off; it should be driven with the correct logic level.

9. ALARM (Alarm Output): This pin provides an indication if the temperature deviates beyond the acceptable range of the setpoint.

10. GND SENSE (Ground Sense Pin): The GND SENSE pin should be connected to the sensor ground to ensure accurate temperature measurement.

11. EP (Exposed Pad): The exposed pad is used for thermal management and should be soldered to the PCB for optimal heat dissipation.

The datasheet for the MAX1978ETM+TW is the definitive source for detailed information, including the pinout and electrical characteristics, and should be consulted for the proper integration of the IC into your system.

When implementing the MAX1978ETM+TW in a circuit, it is crucial to correctly set up the TEC drive (TEC+ and TEC-), temperature sensing (SNS+ and SNS-), power connections (VDD and GND), and control loop configuration (SET, D, GAIN). Additionally, the feedback network (FB+ and FB-), the enable switch (EN), and the alarm function (ALARM) must be properly managed. The thermal management considerations, including the exposed pad (EP), are also vital for maintaining precise temperature control within the system.

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6. What is the process for return or replacement of MAX1978ETM+TW?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MAX1978ETM+TW we delivered, we will accept the replacement or return of the MAX1978ETM+TW only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MAX1978ETM+TW.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations