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R1215D002A - PWM Step-up DC/DC Controller

This page provides the datasheet information for the R1215D002A, a member of the R1215D PWM Step-up DC/DC Controller family.

Datasheet Summary

Description

Pin Description Pin No Symbol Description 1 EXT External FET Drive Pin (CMOS Output) 2 GND Ground Pin 3 DTC Pin for Setting Maximum Duty Cycle and Soft start time 4 DELAY Pin for External Capacitor (for Setting Output Delay of Protection) 5 VFB Feedback Pin for Monitoring Output Vo

Features

  • Input Voltage Range 1.8 V to 5.5 V.
  • Two Options of Basic Oscillator Frequency Typ. 700 kHz, 1.4 MHz.
  • Built-in Latch-type Protection Function (Output Delay Time can be set with an external capacitor).
  • Maximum Duty Cycle/Soft-start time Adjustable with external capacitors.
  • High Reference Voltage Accuracy ±1.5%.
  • UVLO Threshold level Typ. 1.6 V/ 1.79 V by mask option.
  • Small Temperature Coefficient of Reference Voltage Typ. ±150 pp.

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Datasheet preview – R1215D002A

Datasheet Details

Part number R1215D002A
Manufacturer Nisshinbo
File Size 1.15 MB
Description PWM Step-up DC/DC Controller
Datasheet download datasheet R1215D002A Datasheet
Additional preview pages of the R1215D002A datasheet.

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Full PDF Text Transcription

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R1215D Series PWM Step-up DC/DC Controller NO.EA-134-180705 OUTLINE The R1215D is a CMOS-based PWM step-up DC/DC controller with low supply current. The R1215D consists of an oscillator, a PWM comparator circuit, a reference voltage unit, an error amplifier, a reference current unit, a protection circuit, and an under voltage lockout (UVLO) circuit. A low ripple, high efficiency step-up DC/DC converter can be composed of this IC with some external components, or an inductor, a diode, a power MOSFET, resisters, and capacitors. The maximum duty cycle and the soft start time are easily adjustable with external resistors and capacitors.
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