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NT3875B - Wide Input Range CC/CV Step Down Converter

This page provides the datasheet information for the NT3875B, a member of the NT3875A Wide Input Range CC/CV Step Down Converter family.

Description

The NT3875 is a step down PWM converter with driving a output current up to 2A (NT3875A) a nd 1A (NT3875B) without a dditional tra nsistor.

It is de signed to allow f or operating a wide supply voltage ra nge from 8V to 40V .

Features

  •  VIN Operate with 8V ~ 40V Supply V oltage  V OUT Accura cy (Vref =1.2V) +1.0% Over Line Voltage  CC / CV Mode Control (Constant Current and Constant Voltage)  +/- 5% Current Limit Accuracy  Output Short Circuit Protection  Output Over Voltage Protection (~120%)  Over Temperature Prote ction  Internal Soft Start ~ 7ms  Fixed Frequency 120 KHz  UVLO Protection (min=6V, typ=7V, max=8V)  Duty Cycle Range (0~90%)  Single Pin to External Compensation and Shutdown Control  Integrated Powe.

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Datasheet preview – NT3875B

Datasheet Details

Part number NT3875B
Manufacturer Noveltek
File Size 237.11 KB
Description Wide Input Range CC/CV Step Down Converter
Datasheet download datasheet NT3875B Datasheet
Additional preview pages of the NT3875B datasheet.

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Full PDF Text Transcription

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Conceptual NT3875A/B Wide Input Range CC/CV Step Down Converter General Description The NT3875 is a step down PWM converter with driving a output current up to 2A (NT3875A) a nd 1A (NT3875B) without a dditional tra nsistor. It is de signed to allow f or operating a wide supply voltage ra nge from 8V to 40V . The external shutdown function ca n be controlled by logic level to pull COMP/EN pin down, and then comes into standby mode. The external compensation makes feedba ck control have good line and load regulation with flexible extern al design. The NT3875 fe atures a progra mmable CV/CC mode control function s. The CV mode (con stant voltage) function provides a regulated voltage output a nd the CC mode (constant current) function provide s a current li mitation function.
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