Datasheet > L6711_06

L6711_06

更新时间： 2024-01-19 05:27:43

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		控制器
页数	文件大小	规格书
50页	631K
描述
3 Phase controller with dynamic VID and selectable DACs

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L6711_06 数据手册

L6711

3 Phase controller with dynamic VID and selectable DACs

Features

■ 2A integrated gate drivers

■ Fully differential current reading across

inductor or LS MOSFET

■ 0.5% Output voltage accuracy

■ 6 bit programmable output from 0.8185V to

TQFP48 (Exposed Pad)

1.5810V in 12.5mV steps

■ 5 bit programmable output from 0.800V to

1.550V in 25mV steps

Description

■ Dynamic VID management

The device implements a three phase step-down

controller with a 120° phase-shift between each

phase with integrated high current drivers in a

compact 7x7mm body package with exposed pad.

■ Adjustable reference voltage offset

■ 3% active current sharing accuracy

■ Digital 2048 step soft-start

■ Programmable over voltage protection

■ Integrated temperature sensor

■ Constant over current protection

The device embeds selectable DAC: the output

voltage ranges from 0.8185V to 1.5810V with

12.5mV steps (VID_SEL = OPEN) or from 0.800V

to 1.550V with 25mV steps (VID_SEL = GND;

VID5 drives an optional +25mV offset) managing

dynamic VID with 0.5% accuracy over line and

temp variations. Additional programmable offset

can be added to the voltage reference with a

single external resistor.

■ Oscillator internally fixed at 150kHz (450kHz

ripple) externally adjustable

■ Output enable

■ Integrated remote sense buffer

■ TQFP48 7x7 Package with exposed pad

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.

Applications

In case of over-current, the system works in

Constant Current mode until UVP.

■ High current VRM/VRD for desktop / Server /

Workstation CPUs

Selectable current reading adds flexibility in

system design.

■ High density DC/DC Converters

Order codes

Part Number

Package

Packing

L6711

TQFP48

Tube

L6711TR

Tape & Reel

April 2006

Rev 4

1/50

www.st.com

12 3 4 5 6 7...50

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