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R1280D002A集成電路(IC)的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器規(guī)格書PDF中文資料

R1280D002A
廠商型號(hào)

R1280D002A

參數(shù)屬性

R1280D002A 封裝/外殼為10-VFDFN;包裝為卷帶(TR);類別為集成電路(IC)的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器;產(chǎn)品描述:PWM STEP-UP/INVERTING DCDC CONTR

功能描述

2CH PWM DC/DC CONTROLLER

封裝外殼

10-VFDFN

文件大小

329.48 Kbytes

頁(yè)面數(shù)量

18 頁(yè)

生產(chǎn)廠商 RICOH electronics devices division
企業(yè)簡(jiǎn)稱

Ricoh理光

中文名稱

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更新時(shí)間

2025-5-24 23:01:00

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R1280D002A規(guī)格書詳情

OUTLINE

The R1282D002A is a CMOS-based 2-channel PWM Step-up (as Channel 1)/Step-down (as Channel 2) DC/DC converter controller.

The R1282D002A consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a reference current unit, a protection circuit, and an under voltage lockout (UVLO) circuit. A high efficiency Step-up/Step-down DC/DC converter can be composed of this IC with inductors, diodes, power MOSFETs, resisters, and capacitors. Each output voltage and maximum duty cycle can be adjustable with external resistors, while soft-start time can be adjustable with external capacitors and resistors.

As for a protection circuit, if Maximum duty cycle of either Step-up DC/DC converter side or Step-down DC/DC converter side is continued for a certain time, the R1280D002A latches both external drivers with their off state by its Latch-type protection circuit. Delay time for protection is internally fixed typically at 100ms. To release the protection circuit, restart with power-on (Voltage supplier is equal or less than UVLO detector threshold level).

FEATURES

? Input Voltage Range .........................................2.5V to 5.5V

? Built-in Latch-type Protection Function by monitoring duty cycle (Fixed Delay Time Typ. 100ms)

? Oscillator Frequency.........................................700kHz

? High Accuracy Voltage Reference ....................±1.5

? U.V.L.O. Threshold............................................Typ. 2.2V (Hysteresis: Typ. 0.2V)

? Small Package ..................................................thin SON-10 (package thickness Max. 0.9mm)

APPLICATIONS

? Constant Voltage Power Source for Portable Equipment.

? Constant Voltage Power Source for LCD and CCD.

產(chǎn)品屬性

  • 產(chǎn)品編號(hào):

    R1280D002A-TR-FE

  • 制造商:

    Nisshinbo Micro Devices Inc.

  • 類別:

    集成電路(IC) > PMIC - 穩(wěn)壓器 - DC DC 開關(guān)式控制器

  • 包裝:

    卷帶(TR)

  • 輸出類型:

    PWM

  • 功能:

    升壓

  • 輸出配置:

  • 拓?fù)洌?/span>

    升壓

  • 輸出階段:

    1

  • 電壓 - 供電 (Vcc/Vdd):

    2.5V ~ 5.5V

  • 頻率 - 開關(guān):

    700kHz

  • 同步整流器:

    無(wú)

  • 時(shí)鐘同步:

    無(wú)

  • 控制特性:

    使能

  • 工作溫度:

    -40°C ~ 85°C

  • 安裝類型:

    表面貼裝型

  • 封裝/外殼:

    10-VFDFN

  • 供應(yīng)商器件封裝:

    10-SON(2.9x2.8)

  • 描述:

    PWM STEP-UP/INVERTING DCDC CONTR

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