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Name: LT4320IDD-1#TRPBF
Brand: Analog Devices Inc.
SKU: LT4320IDD-1#TRPBF
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. LT4320IDD-1#TRPBF

Part No.:: LT4320IDD-1#TRPBF

Manufacturer:: Analog Devices Inc.

Package:: 8-WFDFN Exposed Pad

Datasheet:: LT4320IDD-1#TRPBF.pdf

Description:: IC OR CTRLR BRIDGE RECT 8DFN

In Stock:: 2815

Quantity:: Add To Cart

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LT4320IDD-1#TRPBF Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
Bridge Rectifier
FETType:
N-Channel
Ratio-Input:Output:
Bridge (1)
InternalSwitch(s):
No
DelayTime-ON:
-
DelayTime-OFF:
-
Current-Output(Max):
-
Current-Supply:
1.5 mA
Voltage-Supply:
9V ~ 72V
Applications:
General Purpose
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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LT4320IDD-1#TRPBF information

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LT4320IDD-1#TRPBF Typical application Circuitry

LT4320IDD-1 TRPBF

The LT4320IDD-1#TRPBF is an innovative ideal diode bridge controller from Linear Technology, designed to replace conventional diode bridges with low-loss N-channel MOSFETs. This technology significantly reduces power dissipation and heat generation compared to traditional diode bridges, making it ideal for a wide range of power conversion applications.

Application Scenario: Power Supplies

A common application of the LT4320IDD-1#TRPBF is in AC to DC power supplies, where it enhances efficiency by reducing the voltage drop and power loss typically associated with standard diode bridges.

Key Specifications

- Voltage Range: The LT4320IDD-1#TRPBF operates over a wide voltage range, accommodating various power supply standards.

- Low Loss: By using MOSFETs instead of diodes, it significantly reduces the power loss during the rectification process.

- Compatibility: A variety of N-channel MOSFETs can be used with it, providing designers with a wide range of options.

- Package: Available in a small package, it is suitable for compact power supply designs.

Circuit Implementation: AC to DC Power Supply

Incorporating the LT4320IDD-1#TRPBF into an AC to DC power supply involves a detailed approach, focusing on each pin of the chip:

1. AC Input Connections: The AC input pins (VIN1 and VIN2) of the LT4320IDD-1#TRPBF should be connected to the AC source. These pins control the phase of the incoming AC signal.

2. Gate Drive Outputs: The external N-channel MOSFETs' gates must be linked to the gate drive pins (GATE1, GATE2, GATE3, and GATE4). To aid in the rectification process, these outputs regulate the MOSFETs' switching.

3. Source Connections: The source pins of the MOSFETs should be connected back to the source pins (SOURCE1 and SOURCE2) on the LT4320IDD-1#TRPBF. This configuration ensures proper current flow through the MOSFETs.

4. Rectified Output: The drains of the MOSFETs will form the positive and negative outputs of the rectified DC signal. Careful layout is required to minimize resistance and inductance in the current path.

5. Power Supply: The LT4320IDD-1#TRPBF itself requires a small bias voltage, which can be derived from the rectified output or an auxiliary supply, connected to the VCC pin.

Design Considerations

- MOSFET Selection: Choosing the right N-channel MOSFETs is crucial. Factors like threshold voltage, on-resistance, and current handling capability need to be considered.

- Thermal Management: Despite the reduced heat generation, effective thermal management is still necessary, especially at higher power levels.

- PCB Layout: A careful PCB layout is essential to minimize the loop area and reduce parasitic inductance and resistance, enhancing efficiency.

- Protection Features: Implementing over-voltage, over-current, and thermal protection in the circuit can enhance the reliability and longevity of the power supply.

Integrating the LT4320IDD-1#TRPBF into AC to DC power supplies not only improves efficiency but also contributes to smaller, cooler, and more reliable designs, showcasing the potential of this advanced ideal diode bridge controller in modern power conversion applications.

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6. What is the process for return or replacement of LT4320IDD-1#TRPBF?

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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.

(2)We are informed of the defect described above within 90 days after the delivery of LT4320IDD-1#TRPBF.

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

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