Mfr Part #:

UC3902DTR

The Texas Instruments UC3902DTR is an 8-pin load share controller IC designed for paralleled power supplies. It operates from 2.7V to 20V.

✓ Total Stock: 18,936 pcs

$ Price Range: $2.71

UC3902DTR Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	16,436 pcs On Request	16436 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	2,500 pcs On Request	2500 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

UC3902DTR Description

Short technical summary and product information.

The UC3902DTR from Texas Instruments is a specialized integrated circuit designed for load sharing in systems with multiple, paralleled power supplies. This 8-pin SOIC package device facilitates balanced current distribution, ensuring each power supply contributes proportionally to the total load.

Key electrical characteristics include an operating voltage range of 2.7V to 20V and a typical current consumption of 4mA. The device is designed to automatically designate a master power supply and adjust the output voltage of other supplies to achieve proportional load sharing. This capability is crucial for enhancing system reliability and efficiency in applications requiring robust power delivery.

The UC3902DTR is housed in an 8-SOIC package, suitable for surface mount applications. Its design aims to minimize the number of external components required, simplifying integration into existing power supply designs. The controller supports features like remote output voltage sensing and programmable loop compensation, offering flexibility for various system configurations.

This load share controller is particularly useful in applications where high reliability and precise power management are essential, such as in redundant power systems or high-current power delivery architectures. Its ability to manage current across multiple supplies helps prevent overloads and ensures stable operation.

UC3902DTR Quick Information

Product Type: Load Share Controller

Canonical Name: UC3902 Load Share Controller

Subcategory: Power Management - Specialized

UC3902DTR Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

UC3902DTR Estimated Pricing

Qty	Low	High
1+	$2.71	$2.71

Estimated market price range - modelled values for guidance only, not live distributor offers.

UC3902DTR Features

Balances current across paralleled power supplies.
Operates from 2.7V to 20V input voltage.
Features 8-pin SOIC surface mount package.
Supports remote output voltage sensing.
Requires minimal external components.

UC3902DTR Applications

Ideal for paralleled power supply systems.
Enhances reliability in redundant power setups.
Used in high-current power delivery designs.
Facilitates balanced load distribution.

UC3902DTR FAQs

4 frequently asked questions generated from this part’s specifications.

What is the operating voltage range for the UC3902DTR?

The UC3902DTR operates from 2.7V to 20V.

What type of package is the UC3902DTR in?

The UC3902DTR is available in an 8-SOIC package.

What is the operating temperature range for the UC3902DTR?

The operating temperature range is -40°C to 100°C.

What are the main applications for the UC3902DTR?

The UC3902DTR is designed as a load share controller for paralleled power supplies.