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參數資料
| 型號： | L6712AD |
| 廠商： | 意法半導體 |
| 英文描述： | TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
| 中文描述： | 兩相交錯DC / DC控制器 |
| 文件頁數： | 1/27頁 |
| 文件大小： | 1074K |
| 代理商： | L6712AD |
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L6712
L6712A
March 2004
■
2 PHASE OPERATION WITH
SYNCHRONOUS RECTIFIER CONTROL
■
ULTRA FAST LOAD TRANSIENT RESPONSE
■
INTEGRATED HIGH CURRENT GATE
DRIVERS: UP TO 2A GATE CURRENT
■
3 BIT PROGRAMMABLE OUTPUT FROM
0.900V TO 3.300V OR WITH EXTERNAL REF.
■
±0.9% OUTPUT VOLTAGE ACCURACY
■
3mA CAPABLE AVAILABLE REFERENCE
■
INTEGRATED PROGRAMMABLE REMOTE
SENSE AMPLIFIER
■
PROGRAMMABLE DROOP EFFECT
■
10% ACTIVE CURRENT SHARING ACCURACY
■
DIGITAL 2048 STEP SOFT-START
■
CROWBAR LATCHED OVERVOLTAGE PROT.
■
NON-LATCHED UNDERVOLTAGE PROT.
■
OVERCURRENT PROTECTION REALIZED
USING THE LOWER MOSFET'S R
dsON
OR A
SENSE RESISTOR
■
OSCILLATOR EXTERNALLY ADJUSTABLE
AND INTERNALLY FIXED AT 150kHZ
■
POWER GOOD OUTPUT AND INHIBIT FUNCTION
■
PACKAGES: SO-28 & VFQFPN-36
APPLICATIONS
■
HIGH CURRENT DC/DC CONVERTERS
■
DISTRIBUTED POWER SUPPLY
DESCRIPTION
The device implements a dual-phase step-down con-
troller with a 180 phase-shift between each phase
optimized for high current DC/DC applications.
Output voltage can be programmed through the in-
tegrated DAC from 0.900V to 3.300V; program-
ming the "111" code, an external reference from
0.800V to 3.300V is used for the regulation.
Programmable Remote Sense Amplifier avoids
use of external resistor divider and recovers loss-
es along distribution line.
The device assures a fast protection against load
over current and Over / Under voltage.An internal
crowbar is provided turning on the low side mosfet
if Over-voltage is detected.
Output current is limited working in Constant Cur-
rent mode: when Under Voltage is detected, the
device resets, restarting operation.
SO28
VFQFPN-36 (6x6x1.0)
ORDERING NUMBERS:
Tube
L6712D, L6712AD
L6712Q, L6712AQ
Package
SO
VFQFPN
Tape & Reel
L6712DTR, L6712ADTR
L6712QTR, L6712AQTR
TWO-PHASE INTERLEAVED DC/DC CONTROLLER
BLOCK DIAGRAM
READING
CURRENT
OCP
DAC
CH1 OCP
PWM1
AMPLIFIER
AMPLIFIER
LS
LS
HS
Vcc
HS
BOOT1
UGATE1
PHASE1
LGATE1
ISEN1
PGNDS1
PGND
PGNDS2
ISEN2
LGATE2
PHASE2
UGATE2
BOOT2
Vcc
COMP
FB
VSEN
FBG
FBR
VID0
VID1
VID2
OSC / INH
SGND
VCCDR
VCCDR
VCC
PROTECTIONS
PWM2
OCP
READING
REF_IN/OUT
PGOOD
DROOP
REFERENCE
SOFT-START
CH2 OCP
V
PROG
CURRENT
I
D
TOTAL
C
A
CH1
L
A
C
2
O
C
C
ERROR
REMOTE
LOGIC AND
C
C
CH2
CURRENT
L
A
C
BAND-GAP
DIGITAL
I
F
相關PDF資料 |
PDF描述 |
|---|---|
| L6712ADTR | TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
| L6712AQ | TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
| L6712AQTR | TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
| L6712D | TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
| L6712DTR | TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L6712ADTR | 功能描述:開關變換器、穩壓器與控制器 2-Ph Interleaved RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6712AQ | 功能描述:開關變換器、穩壓器與控制器 2-Ph Interleaved RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6712AQTR | 功能描述:開關變換器、穩壓器與控制器 2-Ph Interleaved RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6712D | 功能描述:開關變換器、穩壓器與控制器 2-Ph Interleaved RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6712DTR | 功能描述:開關變換器、穩壓器與控制器 2-Ph Interleaved RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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