RT8841 データシートの表示（PDF） - Richtek Technology

部品番号

コンポーネント説明

メーカー

RT8841

4/3/2/1-Phase PWM Controller for High-Density Power Supply

Richtek Technology 

RT8841

Function Block Diagram

RT

COMP

FB

OFS

Modulator

Waveform

Generator

-

+EA

Offset

+

OV

-

+

150mV

Transient

Response

Enhancement

SS/EN

EN/VTT

OV

OC

VIDOFF

POR

+

-

+

850mV

Soft Start

and

Fault

Logic

VIDSEL

VID7 to VID0

FBRTN

ADJ

IMAX

VID

Table

Generator

-

+

OC

-

POR

Power-On

Reset

5V

Regulator

+

MOSFET

Driver

-

VCC12

VCC5

BOOT1

UGATE1

PHASE1

LGATE1

+

MOSFET

-

Driver

+

-

CH3_EN

Detector

+

-

CH4_EN

Detector

I_SEN1 CH1

-

Current

SENSE

I_SEN2 CH2

-

Current

SENSE

AVG

CH3

-

I_SEN3 Current

SENSE

-

I_SEN4 CH4

Current

SENSE

BOOT2

UGATE2

PHASE2

LGATE2

PWM3

PWM4

ISP1

ISN1

ISP2

ISN2

ISP3

ISN3

ISP4

ISN4

Copyright ©2014 Richtek Technology Corporation. All rights reserved.

www.richtek.com

18

is a registered trademark of Richtek Technology Corporation.

DS8841-02 August 2014

Share Link: