Mfr Part #:

OB2571TCPA

Mfr Name: Bright

The Bright OB2571TCPA is a primary-side regulation controller operating in QR mode for AC/DC charger and adapter applications. It integrates a power MOSFET and offers programmable CC/CV control.

✓ Total Stock: 3,314 pcs

OB2571TCPA Available from 1 distributor

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✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Xingangxin ✓ Non-Authorised Inventory information	3,314 pcs On Request	3314 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

OB2571TCPA Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Bright
Operating Mode	QR
Package / Case	SOP8
Protection Features	Cycle-by-Cycle current limiting, VDD OVP, OLP, SCP, OTP, UVLO

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OB2571TCPA Description

Short technical summary and product information.

The OB2571TCPA from Bright is a high-performance primary-side regulation controller designed for medium-power AC/DC charger and adapter applications. It operates in Quasi-Resonant (QR) mode, providing high efficiency and eliminating the need for secondary feedback circuitry, thus reducing the bill of materials.

This controller features proprietary Constant Voltage (CV) and Constant Current (CC) control, with programmable regulation capabilities. It integrates a power MOSFET and offers good dynamic response. The device includes built-in line compensation, fixed cable compensation, and primary winding inductance compensation for tight regulation across universal AC input voltages.

Comprehensive protection features with auto-recovery are integrated, including Cycle-by-Cycle current limiting, VDD Over Voltage Protection (OVP), Output Over Load Protection (OLP), Output Short Circuit Protection (SCP), and Over Temperature Protection (OTP). The OB2571TCPA consumes less than 75mW input power at no-load conditions with a high line voltage.

The OB2571TCPA is supplied in an SOP8 package, suitable for surface mounting. Its design makes it ideal for applications such as cell phone chargers, tablet PCs, AC/DC adapters, and set-top box power supplies.

OB2571TCPA Quick Information

Product Type: Power Switch Controller

Series: OB2571

Canonical Name: OB2571TCPA Primary-Side QR Mode Power Switch Controller

Subcategory: DC-DC Switching Controllers

OB2571TCPA Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

OB2571TCPA Features

Primary-side regulation in QR mode.
Integrated power MOSFET.
Programmable CV and CC control.
Comprehensive auto-recovery protections.
Low no-load input power.

OB2571TCPA Applications

Cell phone chargers.
Tablet PC power supplies.
AC/DC adapters.
Set-top box power supplies.

OB2571TCPA FAQs

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

What is the operating mode of the OB2571TCPA?

The OB2571TCPA operates in Quasi-Resonant (QR) mode.

What type of regulation does the OB2571TCPA provide?

The OB2571TCPA provides primary-side sensing and regulation.

What control modes are supported by the OB2571TCPA?

The OB2571TCPA supports Constant Voltage (CV) and Constant Current (CC) control modes.

Does the OB2571TCPA have an integrated MOSFET?

Yes, the OB2571TCPA integrates a power MOSFET.

What is the input power consumption of the OB2571TCPA at no load?

The OB2571TCPA consumes less than 75mW input power at no-load condition with high line voltage.

What protection features are included in the OB2571TCPA?

The OB2571TCPA includes Cycle-by-Cycle current limiting, VDD OVP, OLP, SCP, OTP, and UVLO with hysteresis.

What package type is the OB2571TCPA available in?

The OB2571TCPA is available in an SOP8 package.