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参数资料
| 型号： | MAX5965AUAX+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/54页 |
| 文件大小： | 1334K |
| 描述： | IC PSE CTRLR FOR POE 36SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 类型： | 以太网供电控制器（PoE） |
| 应用： | IP 电话，LAN 网络供电，网络路由器和交换机 |
| 内部开关： | 无 |
| 电源电压： | 2.4 V ~ 3.6 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-BSOP（0.295"，7.50mm 宽） |
| 供应商设备封装： | 36-SSOP |
| 包装： | 带卷 (TR) |
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General Description
The MAX5965A/MAX5965B are quad, monolithic, -48V
power controllers designed for use in IEEE
?/DIV>
802.3af-com-
pliant/IEEE 802.3at-compatible power-sourcing equipment
(PSE). These devices provide powered device (PD) dis-
covery, classification, current limit, DC and AC load discon-
nect detections in compliance with the IEEE 802.3af
standard. The MAX5965A/MAX5965B are pin compatible
with the MAX5952/MAX5945/LTC4258/LTC4259A PSE
controllers and provide additional features.
The MAX5965A/MAX5965B feature a high-power mode
that provides up to 45W per port. The MAX5965A/
MAX5965B provide new Class 5 and 2-event classifica-
tion (Class 6) for detection and classification of high-
power PDs. The MAX5965A/MAX5965B provide
instantaneous readout of each port current through the
I
2
C interface. The MAX5965A/MAX5965B also provide
high-capacitance detection for legacy PDs.
These devices feature an I
2
C-compatible, 3-wire serial inter-
face, and are fully software configurable and programmable.
The class-overcurrent detection function enables system
power management to detect if a PD draws more than the
allowable current. The MAX5965A/MAX5965Bs extensive
programmability enhances system flexibility, enables field
diagnosis, and allows for uses in other applications.
The MAX5965A/MAX5965B provide four operating modes
to suit different system requirements. Auto mode allows
the devices to operate automatically without any software
supervision. Semi-automatic mode automatically detects
and classifies a device connected to a port after initial
software activation, but does not power up that port until
instructed to by software. Manual mode allows total soft-
ware control of the device and is useful for system diag-
nostics. Shutdown mode terminates all activities and
securely turns off power to the ports.
The MAX5965A/MAX5965B provide input undervoltage
lockout (UVLO), input undervoltage detection, a load-
stability safety check during detection, input overvolt-
age lockout, overtemperature detection, output voltage
slew-rate limit during startup, power-good status, and
fault status. The MAX5965A/MAX5965Bs programma-
bility includes startup timeout, overcurrent timeout, and
load-disconnect detection timeout.
The MAX5965A/MAX5965B are available in a 36-pin SSOP
package and are rated for both extended (-40癈 to +85癈)
and upper commercial (0癈 to +85癈) temperature ranges.
Applications
Power-Sourcing Equipment (PSE)
Switches/Routers
Midspan Power Injectors
Features
o IEEE 802.3af Compliant/IEEE 802.3at Compatible
o Instantaneous Readout of Port Current Through
I
2
C Interface
o High-Power Mode Enables Up to 45W Per Port
o High-Capacitance Detection for Legacy Devices
o Pin Compatible with MAX5952/MAX5945/
LTC4258/LTC4259A
o Four Independent Power-Switch Controllers
o PD Detection and Classification (Including 2-
Event Classification)
o Selectable Load-Stability Safety Check During
Detection
o Supports Both DC and AC Load Removal
Detections
o I
2
C-Compatible, 3-Wire Serial Interface
o Current Foldback and Duty-Cycle-Controlled
Current Limit
o Open-Drain INT Signal
o Direct Fast Shutdown Control Capability
o Special Class 5 Classification
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
________________________________________________________________ Maxim Integrated Products 1
19-4593; Rev 3; 3/12
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
Pin Configuration appears at end of data sheet.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX5965AEAX+
-40癈 to +85癈
36 SSOP
MAX5965AUAX+*
0癈 to +85癈
36 SSOP
MAX5965BEAX+
-40癈 to +85癈
36 SSOP
MAX5965BUAX+*
0癈 to +85癈
36 SSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Future productcontact factory for availability.
IEEE is a registered service mark of the Institute of Electrical and Electronics Engineers, Inc.
Selector Guide
PART
PIN-PACKAGE
AC DISCONNECT
FEATURE
MAX5965AEAX+
36 SSOP
No
MAX5965AUAX+
36 SSOP
No
MAX5965BEAX+
36 SSOP
Yes
MAX5965BUAX+
36 SSOP
Yes
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5965BCAX+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX5965BCAX+T | 制造商:Maxim Integrated Products 功能描述:HIGH-POWER, QUAD, MONOLITHIC, PSE CONTROLLERS FOR POWER OVER - Tape and Reel |
| MAX5965BEAX+ | 功能描述:热插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5965BEAX+T | 功能描述:热插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5965BUAX+ | 功能描述:热插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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