Le blog de l'entreprise Mingjiada Original Supply: TI DCP010505—1W Isolated, Unregulated DC/DC Converter Module

Shenzhen Mingjiada Electronics Co., Ltd. is the authorised supplier of the TI DCP010505 isolated DC/DC converter: a 1W miniature module designed for signal path isolation and data acquisition applications

Product Overview

The DCP010505 is part of Texas Instruments’ (TI) DCP01B series of miniature isolated DC/DC converter modules, featuring a power rating of 1W and utilising a non-regulated output architecture. This series of devices provides highly integrated, highly reliable power conversion solutions for applications such as industrial control, data acquisition and test equipment, where strict requirements for signal path isolation are essential.

Key Features

The DCP010505 series offers the following key technical features:

1 kV isolation: Provides 1 kV RMS electrical isolation between input and output (tested for 1 second); a voltage of 60 V DC / 42.5 V AC can be continuously applied across the isolation barrier, making it suitable for applications requiring the elimination of ground loops and the safeguarding of signal integrity.

High power density: The module achieves a power density of 40 W/in³ (2.4 W/cm³), delivering a 1 W isolated power output within an extremely compact package, making it suitable for space-constrained embedded systems.

On-chip protection: Built-in over-temperature and short-circuit protection enhance system reliability under abnormal operating conditions.

Inter-device synchronisation: Supports interconnection of SYNC pins across multiple devices to synchronise switching frequencies, effectively suppressing beat frequency interference when multiple power modules operate in parallel.

High conversion efficiency: Typical efficiency ranges from 80% to 85%, resulting in low thermal loss at the 1W power level.

EMC and safety certifications: Complies with the EN 55022 Class B EMC performance standard and has obtained UL 1950 recognised component certification, facilitating the safety certification process for end products.

Key Specifications

The following is a summary of the main specifications for the DCP010505BP (PDIP-7 package):

Input voltage (Vin): 4.5 V to 5.5 V

Output voltage (Vout): 4.75 V to 5.25 V (single 5 V output)

Output current (maximum): 200 mA

Output Power: 1W

Conversion Efficiency: 80% (typical)

Isolation Voltage (Vrms): 1kV

Switching Frequency: 400kHz – 800kHz

Ripple and Noise: 20mVp-p

Operating Temperature: –40°C – +100°C

Quiescent Current: 19mA

Package type: PDIP-7

The dual-output version (DCP010505DBP) provides dual outputs of +5V and -5V, with an output current of 100mA per channel and a total output power of approximately 0.97W. It is suitable for powering operational amplifiers and ADCs/DACs that require both positive and negative power supplies.

Typical Application Areas

Thanks to its compact size and reliable isolation performance, the DCP010505 series is widely applicable in the following scenarios:

Signal path isolation: In interface circuits such as industrial fieldbus, CAN communication and RS-485 communication, it provides isolated-side power to isolators (such as optocouplers and digital isolators), effectively blocking ground loop currents and enhancing communication reliability and immunity to interference. In a typical circuit, the DCP010505 is used in conjunction with an 82C250 transceiver and a 6N137 optocoupler to form a complete isolated CAN communication node.

Ground Loop Elimination: In data acquisition systems, the potential difference between the sensor ground and the system ground can introduce measurement errors. The DCP010505 provides a floating power supply for the analogue front-end, eliminating interference caused by ground loops at source.

Industrial Control and Instrumentation: In industrial equipment such as PLC modules, smart transmitters and isolation barriers, the DCP010505 supplies power to the isolated signal conditioning circuits, withstanding common-mode interference in industrial environments.

Test and Measurement Equipment: In test instruments such as oscilloscopes, data loggers and precision power supplies, the DCP010505 is used to isolate the signal under test from the instrument’s internal circuits, ensuring measurement accuracy and operational safety.

Multi-channel isolated power supply design: Utilising the synchronisation function between devices, the SYNCIN/SYNCOUT pins of multiple DCP010505 devices can be cascaded to enable multiple isolated outputs to operate at the same switching frequency, thereby preventing beat noise from interfering with sensitive analogue circuits.

Advantages of Mingjiada’s Genuine Supply

As a key supplier of the DCP010505 series, Mingjiada Electronics offers the following supply guarantees:

Traceable genuine products: All DCP010505 series products are sourced through official channels with traceable supply chains, ensuring product consistency and reliability.

Adequate Stock on Hand: We maintain a regular stock of popular DCP010505BP (PDIP-7) models, supporting both small-batch sample orders and bulk purchases, with rapid lead times.

Flexible Procurement Methods: We support various procurement methods, including online quotations, BOM order fulfilment and sample requests, to meet the needs of different stages from R&D prototyping to mass production stockpiling.

To obtain information on stock availability and quotations for the DCP010505 series, please feel free to enquire via the Mingjiada Electronics website (www.integrated-ic.com) or through our customer service channels.

Contact details: Tel: +86 13410018555, Email: sales@hkmjd.com, Company address: Rooms 1239–1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen.

Tags: DCP010505BP, DCP010505B, DCP010505