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Name: ADN8834ACPZ-R7
Brand: Analog Devices Inc.
SKU: ADN8834ACPZ-R7
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. ADN8834ACPZ-R7

Part No.:: ADN8834ACPZ-R7

Manufacturer:: Analog Devices Inc.

Package:: 24-WFQFN Exposed Pad, CSP

Datasheet:: ADN8834ACPZ-R7.pdf

Description:: IC THERMO COOLER DRIVER 24LFCSP

In Stock:: 159

Quantity:: Add To Cart

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ADN8834ACPZ-R7 Typical application Circuitry

ADN8834ACPZ-R7

The ADN8834ACPZ-R7 is a thermoelectric cooler (TEC) controller IC designed to precisely control the temperature of semiconductor devices using a Peltier element. It is optimized for applications requiring efficient thermal management to maintain the temperature of sensitive components within a specific range. This includes laser diode cooling in optical transceivers, CCD cooling in cameras, and precision temperature control in medical devices and scientific instruments. The ADN8834ACPZ-R7 offers a compact, efficient solution for TEC applications with features such as bidirectional control, automatic maximum power point tracking for optimal TEC efficiency, and comprehensive protection mechanisms.

Application Scenarios

The ADN8834ACPZ-R7 is ideal for applications where precise temperature control is crucial for the performance and reliability of electronic components or systems. Its use in cooling laser diodes ensures stable operation in fiber optic communications, while in scientific instruments, it helps maintain the accuracy of temperature-sensitive measurements.

Parameter Features

- Bidirectional Temperature Control: Enables both heating and cooling functions to maintain the target temperature.

- Automatic Maximum Power Point Tracking (MPPT): Optimizes the efficiency of the thermoelectric cooler by adjusting the operating point.

- Complete Protection: To guarantee safe operation, features like thermal shutdown, overcurrent protection, and under-voltage lockout are included.

- Adjustable Control Parameters: Allows customization of temperature setpoints, PID control coefficients, and operating limits to fit specific application needs.

Application Example: Laser Diode Cooling System

Designing a cooling system for a laser diode using the ADN8834ACPZ-R7 involves careful consideration of the IC's connections, thermal management, and control strategy. Below is a detailed explanation of the circuit design process:

- Temperature Setpoint Adjustment: To set the desired temperature for the laser diode, connect a resistor divider to the SETPT pin (pin adjust). According to the specifications in the ADN8834ACPZ-R7 datasheet, the target temperature is determined by the values of these resistors.

- Thermoelectric Cooler Connection: Connect the thermoelectric cooler between the TEC+ (positive) and TEC- (negative) pins. This setup allows the ADN8834ACPZ-R7 to control the direction and magnitude of the current through the Peltier element, providing cooling or heating as needed.

- Temperature Feedback: Attach a temperature sensor, such as a thermistor, close to the laser diode and connect it to the THRM pin to provide real-time temperature feedback to the ADN8834ACPZ-R7.

- Power Supply Connection: Apply the supply voltage to the VDD pin, ensuring it meets the ADN8834ACPZ-R7 specifications for input voltage range. This powers the internal circuitry of the IC.

- Grounding: To create a common reference point for all signals and power returns, connect the GND pin to the system's ground.

- Load Current Sensing: A sense resistor connected between the TEC- pin and ground allows the ADN8834ACPZ-R7 to monitor and control the TEC current, implementing overcurrent protection.

- Thermal Management of the IC: Consider the ADN8834ACPZ-R7's own thermal dissipation. Implement appropriate heat sinking or airflow around the IC, especially when operating at high power levels, to prevent thermal shutdown.

- PCB Layout Considerations: Ensure a low-noise, stable layout by keeping the feedback and control signal paths short and well-separated from the high-current TEC drive paths. Use adequate copper area for heat spreading and thermal vias for improved heat dissipation.

In designing with the ADN8834ACPZ-R7, attention to detail in setting the temperature setpoint, managing the thermal load, and ensuring stable, noise-free operation is critical. Proper implementation ensures efficient, reliable temperature control for laser diodes, enhancing system performance and longevity.

ADN8834ACPZ-R7 information

ADN8834ACPZ-R7 Specifications

Package/Case:
24-WFQFN Exposed Pad, CSP
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Applications:
Thermoelectric Cooler
Current-Supply:
3.3mA
Voltage-Supply:
2.7V ~ 5.5V
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of ADN8834ACPZ-R7?

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

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

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