参数资料
型号: MAX17014ETM+
厂商: Maxim Integrated Products
文件页数: 31/33页
文件大小: 0K
描述: IC PWR SUPPLY MULT-OUTPUT 48TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 43
应用: LCD 电视机/监控器
电流 - 电源: 8mA
电源电压: 8 V ~ 16.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-WFQFN 裸露焊盘
供应商设备封装: 48-TQFN-EP(7x7)
包装: 托盘
Low-Cost Multiple-Output
Power Supply for LCD TVs
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Place all feedback voltage-divider resistors as
close to their respective feedback pins as possible.
The divider’s center trace should be kept short.
Placing the resistors far away causes their FB
traces to become antennas that can pick up switch-
ing noise. Care should be taken to avoid running
any feedback trace near LX1, LX2, DRVP, or DRVN.
Place V IN pin, VL pin, and REF pin bypass capaci-
?
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Minimize the length and maximize the width of the
traces between the output capacitors and the load
for best transient responses.
Minimize the size of the LX1 and LX2 nodes while
keeping them wide and short. Keep the LX1 and
LX2 nodes away from feedback nodes (FB1, FB2,
FBP, and FBN) and analog ground. Use DC traces
as a shield, if necessary.
tors as close to the device as possible. The ground
connection of the VL bypass capacitor should be
connected directly to the GND pin with a wide trace.
Refer to the MAX17014 evaluation kit for an example of
proper board layout.
Simplified Operating Circuit
V IN
IN2 IN2
BST
GND1 GND1
LX1 LX1
SWI
SWI
OUT
LX2
SUI
SWO
AV DD
LX2
FB1
COMP
OUT
FB2
V IN
V IN
OVIN
AV DD
OGND
VL
REF
VL
FSEL
MODE
REF
POS1
POS2
THR
GND
DEL1
DEL2
MAX17014
NEG1
OUT1
NEG2
OUT2
CTL
DRN
GON
VCOM1
VCOM2
GON CONTROL
GON
GOFF
ON/OFF
ON/OFF
EN1
EN2
DLP
SUP
SRC
DRVP
SWI
SRC
DRVN
FBN
REF
CPGND
EP
FBP
AV DD
______________________________________________________________________________________
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MAX17014ETM+ 功能描述:其他电源管理 Power Supply for LCD TVs RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel
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