參數(shù)資料
型號(hào)： MAX5950ETJ+T
廠商： Maxim Integrated
文件頁數(shù)： 1/28頁
文件大?。?/td> 552K
描述： IC PWM CTRL HOT-SW 12V 32TQFN-EP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類型： 熱交換控制器
應(yīng)用： 通用型，PCI Express?
內(nèi)部開關(guān)： 無
電源電壓： 8 V ~ 16 V，±5V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 32-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 32-TQFN-EP（5x5）
包裝： 帶卷 (TR)
General Description
The MAX5950 is a 12V pulse-width modulated (PWM),
step-down, DC-DC controller with integrated hot-swap
controller. The device operates over the 8V to 16V input-
voltage range or 5V ?0% and provides an adjustable
output from 0.8V to 5.5V. The device delivers up to 10A
of load current with excellent load-and-line regulation.
The MAX5950 is optimized for PCIe
?/DIV>
ExpressModule"
power-management application.
The MAX5950 features a hot-swap controller that pro-
vides inrush current control during module insertion
and removal, as well as short-circuit protection during
normal operation. The MAX5950 features an internal
charge pump that provides the gate drive for an exter-
nal n-channel MOSFET. A DCENO logic output indi-
cates the completion of the inrush cycle.
The MAX5950 PWM section utilizes a voltage-mode con-
trol scheme for good noise immunity and offers external
compensation, allowing for maximum flexibility with a
wide selection of inductor values and capacitor types.
The device operates at a fixed switching frequency that
is programmable from 100kHz to 1MHz and can be syn-
chronized to an external clock signal through the
SYNCIN input. The device includes undervoltage lockout
(UVLO) and digital soft-start. Protection features include
lossless valley-mode current limit, hiccup-mode output
short-circuit protection, and thermal shutdown.
The MAX5950 is available in a space-saving 5mm x
5mm, 32-pin thin QFN package and is specified for
operation over the -40癈 to +85癈 extended tempera-
ture range. Refer to the MAX5951 data sheet for a pin-
compatible, general-purpose PWM controller.
Applications
PCIe ExpressModule
General 12V-Input PWM Controllers with
Hot-Swap
Blade Servers
RAID
Base Stations
Work Stations
Features
o 8V to 16V or 5V ?/SPAN>10% Input-Voltage Range
o Integrated Hot-Swap Controller 
o Lossless Valley-Mode Current Sensing
o Output Voltage Adjustable from 0.8V to 5.5V
o Voltage-Mode Control
o External Compensation for Maximum Flexibility 
o Digital Soft-Start
o Sequencing or Ratiometric Tracking
o Startup Synchronization
o Programmable PGOOD Output
o Programmable Switching Frequency from 100kHz
to 1MHz
o External Frequency Synchronization 
o SYNCIN and SYNCOUT Enable 180?/SPAN> Out-of-Phase
Operation
o Thermal Shutdown and Short-Circuit Protection
o Space-Saving 5mm x 5mm, 32-Pin TQFN Package
12V PWM Controller with Hot-Swap
________________________________________________________________ Maxim Integrated Products   1
19-0545; Rev 0; 6/06
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxims website at www.maxim-ic.com.
MAX5950
TQFN
(5mm x 5mm)
TOP VIEW
29
30
28
27
12
11
13
14
1
+
2
DREG
4
5
6
7
23
24
22
20    19   18
LX
DH
AGND
THRESH
DCENI
DCENO
3
21
31
10
BST
PGI
32
9
REG
MPWRGD
DL
26
15   SYNCOUT
PGND
25
16   SYNCIN
8
17
CS-
Pin Configuration
Ordering Information
PART
TEMP RAN  E
PIN-
PACKAGE
PKG
CODE
MAX
ET +    -40癈 to +85癈   32 TQFN-EP*
T  2   -4
PCIe is a registered trademark and ExpressModule is a
trademark of PCI-SIG Corp.
+Denotes lead-free package.
*EP = Exposed pad.
E
V
A
L
U
AT
I
ON
 
K
IT
AV
A
IL
A
B
L
E
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參數(shù)描述
MAX5950EVKIT 制造商:Maxim Integrated Products 功能描述:12V PWM CONTROLLER WITH HOT-SWAP - Rail/Tube
MAX5951ETJ 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX5951ETJ+ 功能描述:電壓模式 PWM 控制器 12V/5V Buck PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX5951ETJ+T 功能描述:電壓模式 PWM 控制器 12V/5V Buck PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX5951ETJ-T 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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