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PT1115 - 1.5A Constant Voltage and Constant Current Buck

General Description

The PT1115 is a low cost, high efficiency pulse-width modulated (PWM) switching mode buck converter with both constant voltage (CV) and constant current (CC) functions.

The input voltage of PT1115 can be as high as 35V at which the over-voltage protection is triggered.

Key Features

  • z z z z z z z z z z z z z z z z 7.2~35V operating input voltage range 700 kHz fixed switching frequency. PWM control ±4% output current accuracy in the CC mode 0.5~1.5A output current set by a small current sensing resistor ±2% feedback voltage accuracy in the CV mode Cable wire resistance compensation. Input and output over voltage protection (OVP) Short-ground protection Cycle-by-cycle switching peak current limit Soft start for power-up 150oC over temperature shutdown under-voltage lockout (U.

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Datasheet Details

Part number PT1115
Manufacturer Powtech
File Size 284.67 KB
Description 1.5A Constant Voltage and Constant Current Buck
Datasheet download datasheet PT1115 Datasheet

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Full PDF Text Transcription for PT1115 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for PT1115. For precise diagrams, tables, and layout, please refer to the original PDF.

PT1115 1.5A Constant Voltage and Constant Current Buck with Cable Resistance Compensation GENERAL DESCRIPTION The PT1115 is a low cost, high efficiency pulse-width modula...

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SCRIPTION The PT1115 is a low cost, high efficiency pulse-width modulated (PWM) switching mode buck converter with both constant voltage (CV) and constant current (CC) functions. The input voltage of PT1115 can be as high as 35V at which the over-voltage protection is triggered. The Vin pin is capable of sustaining 48V that further improves the reliability of the PT1115 under the conditions of hot swap and surging voltages. In the CC mode, the output current variation is less than ±4% of the nominal value which can be set up to 1.5A by the current sensing resistor. In the CV mode, the feedback voltage is controlled within