- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄384654 > MAX1887 (Maxim Integrated Products, Inc.) Quick-PWM Slave Controllers for Multiphase, Step-Down PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX1887 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quick-PWM Slave Controllers for Multiphase, Step-Down |
| 中文描述： | Quick-PWM從控制器，用于多相、降壓型電源 |
| 文件頁(yè)數(shù)： | 29/33頁(yè) |
| 文件大小： | 1018K |
| 代理商： | MAX1887 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)當(dāng)前第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)
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: 1422
PROCESS: BiCMOS
M
Quick-PWM Slave Controllers for
Multiphase, Step-Down Supplies
______________________________________________________________________________________
29
MAX1887
(MAX1897)*
(TON)*
REF
(MASTER)
FLOAT
(300kHz)
ILIM
(MASTER)
FB
(MASTER)
( )* MAX1897 PINS ONLY
MASTER LOW-SIDE GATE DRIVER
MASTER CURRENT
SENSE RESISTOR
OUTPUT
INPUT
5V BIAS
SUPPLY
V
DD
(V
CC
)*
(POL)*
ILIM
LIMIT
COMP
GND
TRIG
CM-
CM+
CS-
CS+
PGND
DL
DH
BST
V+
SHDN
LX
Typical Operating Circuit
Pin Configurations (continued)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
ILIM
LIMIT
V+
BST
LX
DH
V
DD
DL
PGND
TOP VIEW
MAX1887
QSOP
TRIG
CM+
CS+
CM-
CS-
COMP
GND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1889EGE | Triple-Output TFT LCD Power Supply with Fault Protection |
| MAX1889ETE | Triple-Output TFT LCD Power Supply with Fault Protection |
| MAX1889 | Fixed-Point Digital Signal Processor 256-BGA |
| MAX1896 | 1.4MHz SOT23 Current-Mode Step-Up DC-DC Converter |
| MAX1896EUT-T | Fixed-Point Digital Signal Processor 532-FCBGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1887EEE | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX1887EEE+ | 功能描述:電流型 PWM 控制器 CDMA Cellular/PCS System Power Supplies RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX1887EEE+T | 功能描述:電流型 PWM 控制器 CDMA Cellular/PCS System Power Supplies RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX1887EEE-T | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX1888EUA | 功能描述:其他電源管理 RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。