- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383343 > MAX1980ETP (MAXIM INTEGRATED PRODUCTS INC) Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter PDF資料下載
參數(shù)資料
| 型號： | MAX1980ETP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter |
| 中文描述： | SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封裝： | 5 X 5 MM, 0.80 MM HEIGHT, THIN, QFN-20 |
| 文件頁數(shù)： | 29/33頁 |
| 文件大?。?/td> | 1153K |
| 代理商： | MAX1980ETP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當(dāng)前第29頁第30頁第31頁第32頁第33頁
M
Quick-PWM Slave Controller with
Driver Disable for Multiphase DC-DC Converter
______________________________________________________________________________________
29
side MOSFET or between the inductor and the out-
put filter capacitor.
8) Route high-speed switching nodes away from sen-
sitive analog areas (COMP, ILIM). Make all pin-
strap control input connections (
SHDN
, ILIM, POL)
to analog ground or V
CC
rather than power ground
or V
DD
.
Layout Procedure
1) Place the power components first, with ground termi-
nals adjacent (low-side MOSFET source, C
IN
, C
OUT
,
and D1 anode). If possible, make all these connec-
tions on the top layer with wide, copper-filled areas.
2) Mount the controller IC adjacent to the low-side
MOSFET. The DL gate trace must be short and
wide (50mils to 100mils wide if the MOSFET is 1
inch from the controller IC).
3) Group the gate-drive components (BST diode and
capacitor, V
DD
bypass capacitor) together near the
controller IC.
4) Make the DC-DC controller ground connections as
shown in Figure 1. This diagram can be viewed as
having four separate ground planes: input/output
ground, where all the high-power components go;
the power ground plane, where the PGND pin and
V
DD
bypass capacitor go; the master
’
s analog
ground plane where sensitive analog components,
the master
’
s GND pin and V
CC
bypass capacitor
go; and the slave
’
s analog ground plane where the
slave
’
s GND pin, and V
CC
bypass capacitor go.
The master
’
s GND plane must meet the PGND
plane only at a single point directly beneath the IC.
Similarly, the slave
’
s GND plane must meet the
PGND plane only at a single point directly beneath
the IC. The respective master and slave ground
planes should connect to the high-power output
ground with a short metal trace from PGND to the
source of the low-side MOSFET (the middle of the
star ground). This point must also be very close to
the output capacitor ground terminal.
5) Connect the output power planes (V
CORE
and sys-
tem ground planes) directly to the output filter
capacitor positive and negative terminals with multi-
ple vias. Place the entire DC-DC converter circuit
as close to the CPU as is practical.
Chip Information
TRANSISTOR COUNT: 1424
PROCESS: BiCMOS
Typical Operating Circuit
MAX1980
REF
(MASTER)
FLOAT
(300kHz)
ILIM
(MASTER)
FB
(MASTER)
MASTER LOW-SIDE GATE DRIVER
MASTER CURRENT-
SENSE RESISTOR
OUTPUT
INPUT
5V BIAS
SUPPLY
V
DD
V
CC
POL
ILIM
TON
LIMIT
COMP
GND
TRIG
CM-
CM+
CS-
CS+
PGND
DL
DH
BST
V+
DD
LX
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1982 | Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply |
| MAX1982-MAX1983 | EPS300 3/4 CR 48 IN 5700750CR |
| MAX1982EUT-T | Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply |
| MAX1983EUT-T | Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply |
| MAX1983 | Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1980ETP+ | 功能描述:DC/DC 開關(guān)控制器 PWM Slave Controller w/Driver Disable RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1980ETP+T | 功能描述:DC/DC 開關(guān)控制器 PWM Slave Controller w/Driver Disable RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1980ETP+TG075 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1980ETP-T | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1980ETP-TG075 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。