Datasheet > L6919

L6919

更新时间： 2024-09-15 23:44:03

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
32页	559K
描述
5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT

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中文翻译

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数据手册

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L6919 数据手册

L6919C

5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER

WITH DYNAMIC VID MANAGEMENT

■

2 PHASE OPERATION WITH

SYNCRHONOUS RECTIFIER CONTROL

ULTRA FAST LOAD TRANSIENT RESPONSE

INTEGRATED HIGH CURRENT GATE

DRIVERS: UP TO 2A GATE CURRENT

TTL-COMPATIBLE 5 BIT PROGRAMMABLE

OUTPUT FROM 0.800V TO 1.550V WITH

25mV STEPS

■

SO-28

ORDERING NUMBERS:L6919CD

L6919CDTR

■

DYNAMIC VID MANAGEMENT

0.6% OUTPUT VOLTAGE ACCURACY

10% ACTIVE CURRENT SHARING ACCURACY

DIGITAL 2048 STEP SOFT-START

OVERVOLTAGE PROTECTION

OVERCURRENT PROTECTION REALIZED

USING THE LOWER MOSFET'S R

SENSE RESISTOR

OSCILLATOR EXTERNALLY ADJUSTABLE

AND INTERNALLY FIXED AT 200kHz

POWER GOOD OUTPUT AND INHIBIT

FUNCTION

REMOTE SENSE BUFFER

PACKAGE: SO-28

DESCRIPTION

The device is a power supply controller specifically de-

signed to provide a high performance DC/DC conver-

sion for high current microprocessors. The device

implements a dual-phase step-down controller with a

180° phase-shift between each phase. A precise 5-bit

digital to analog converter (DAC) allows adjusting the

output voltage from 0.800V to 1.550V with 25mV binary

steps managing On-The-Fly VID code changes.

The high precision internal reference assures the se-

lected output voltage to be within ±0.6%. The high

peak current gate drive affords to have fast switching

to the external power mos providing low switching

losses.

OR A

dsON

■

APPLICATIONS

■

The device assures a fast protection against load

over current and load over/under voltage. An internal

crowbar is provided turning on the low side mosfet if

an over-voltage is detected. In case of over-current,

the system works in Constant Current mode.

POWER SUPPLY FOR SERVERS AND

WORKSTATIONS

■

POWER SUPPLY FOR HIGH CURRENT

MICROPROCESSORS

DISTRIBUTED POWER SUPPLY

BLOCK DIAGRAM

OSC / INH

SGND

VCCDR

BOO T1

G^UA T E1

PGOOD

PW M1

PHAS E1

CH1

LGAT E1

OCP

DIGITAL

VCC

SOF T- S TART

ISEN1

VCC DR

CURREN T

REA DING

TO TA L

CUR R EN T

PGNDS1

PGND

VID4

VID3

PGNDS2

CURREN T

REA DING

VID2

VID1

VID0

D AC

CH2 OCP

CH1 OCP

ISEN2

LGAT E2

CH2

OCP

32k

I_FB

FBG

FBR

PHAS E2

UGATE2

BOO T2

PW M2

REMOTE

BUFFER

32k

Vc c

ERR OR

A MPL IFIER

VSEN

COMP

Vcc

December 2002

1/32

12 3 4 5 6 7...32

中文翻译

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与L6919相关器件

型号	品牌	获取价格	描述	数据表
L6919C	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
L6919CD	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
L6919CDTR	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
L6919E	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
L6919ETR	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
L-692	RHOMBUS-IND	获取价格	Common Mode Inductor
L6920	STMICROELECTRONICS	获取价格	1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
L6920D	STMICROELECTRONICS	获取价格	1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
L6920DB	STMICROELECTRONICS	获取价格	Synchronous rectifier step up converter
L6920DBTR	STMICROELECTRONICS	获取价格	Synchronous rectifier step up converter

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