DC1825A Flyback, Forward, and Isolated Controller by Analog Devices

Status: Production
Series: LT8300
RoHS: Compliant
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The LT8300 is a micropower high voltage isolated flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with a single external resistor. Internal compensation and soft-start further reduce external component count. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. A 260mA, 150V DMOS power switch is integrated along with all high voltage circuitry and control logic into a 5-lead ThinSOTâ„¢ package.The LT8300 operates from an input voltages range of 6V to 100V and can deliver up to 2W of isolated output power. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low component count, and high efficiency application solution for isolated power delivery.

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Prices starting from US$117.00

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Newark Electronics
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Features

6V to 100V Input Voltage Range
260mA, 150V Internal DMOS Power Switch
Low Quiescent Current
70µA in Sleep Mode
330µA in Active Mode
Boundary Mode Operation at Heavy Load
Low-Ripple Burst Mode® Operation at Light Load
Minimum Load <0.5% (Typ) of Full Output
VOUT Set with a Single External Resistor
No Transformer Third Winding or Opto-Isolator Required for Regulation
Accurate EN/UVLO Threshold and Hysteresis
Internal Compensation and Soft-Start
5-Lead TSOT-23 Package
AEC-Q100 Qualified for Automotive Applications

Last 6 months Inventory & Pricing History


Alternative Descriptions

Demonstration Board, Flyback Converter | Newark Electronics
DEMONSTRATION BOARD, FLYBACK CONVERTER | element14
LT8300 DC to DC Converter and Switching Regulator Chip 4.75VDC to 5.25VDC Output Demonstration Circuit | Richardson RFPD


DC1825A Development Boards & Evaluation Kits by Linear Technology

DEMO BOARD FLYBACK REGULATOR

Status: Unknown
Series: -
RoHS: Unknown
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Demonstration circuit 1825A is an isolated flyback converter featuring the LT®8300. This demo circuit outputs 5.0V, and maintains tight regulation with a load current from ~1mA to 250mA and over an input from 22V to 75V, with a nominal 48V. The output current capability increases with the input voltage. The DC1825A needs a very small minimum load (~1mA) to regulate the output voltage, thanks to the accurate current limit capability and ultra low switching frequency of the LT8300 at very light load. The standby input current of the demo circuit is less than 400µA (typical) because of the low quiescent current design of the IC and very small minimum load requirement. The Performance Summary table summarizes the performance of the demo board at room temperature. The demo circuit can be easily modified for different applications with some pre-designed transformers. The LT8300 is a simple-to-use high voltage monolithic isolated flyback converter. No third winding or opto-isolator is required for regulation. The part sets the isolated output voltage with a single external resistor and integrates compensation and soft start circuitry inside. Boundary mode operation provides a small magnetic solution with improved load regulation. Low ripple Burst Mode® operation maintains high efficiency at light loads while minimizing the output voltage ripple. A 260mA, 150V DMOS power switch is integrated along with all high voltage circuitry and control logic into a 5-lead ThinSOT™ package. The LT8300 data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with this quick start guide for DC1825A.

Features


Specifications

Silicon Manufacturer Linear Technology
Silicon Core Number LT8300
Kit Application Type Power Management
Application Sub Type Flyback Regulators
Kit Contents Demonstration Board LT8300
Product Range -
SVHC No SVHC (07-Jul-2017)
Features Output Voltage of 5V Load Current of 1mA to 250mA Input Voltage of 22V to 75V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DC1825A?

Additional datasheets, footprints and schematics for DC1825A are listed on our Part Details page. You can also find images and similar parts to DC1825A on this page.

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What category does DC1825A fall under?

The DC1825A is listed under Flyback, Forward, and Isolated Controller.

Can I view similar or alternative parts?

You can view similar parts to DC1825A when available in the Flyback, Forward, and Isolated Controller range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the DC1825A you can contact the distributor directly for product support, shipping queries etc.

Is the DC1825A RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for DC1825A have stock available?

Authorised distributors including Newark Electronics, element14, Farnell and Richardson RFPD have stock available or on a lead time for DC1825A.

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