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| 型号： | MAX5935EAX+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/44页 |
| 文件大小： | 700K |
| 描述： | IC CTRLR POWER QUAD 36-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 30 |
| 类型： | 以太网供电控制器（PoE） |
| 应用： | 远程外设（工业控制，相机，数据访问） |
| 内部开关： | 无 |
| 电源电压： | -32 V ~ -60 V |
| 工作温度： | -40°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： | 管件 |
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General Description
The MAX5935 quad network power controller is designed
for use in IEEE 802.3af-compliant power sourcing equip-
ment (PSE). The device provides power devices (PD) dis-
covery, classification, current limit, and both DC and AC
load disconnect detections. The MAX5935 can be used
in either endpoint PSE (LAN switches/routers) or midspan
PSE (power injector) applications.
The MAX5935 can operate autonomously or be con-
trolled by software through an I
2
C-compatible interface.
Separate input and output data lines (SDAIN and
SDAOUT) allow usage with optocouplers. The
MAX5935 is a slave device. Its four address inputs
allow 16 unique MAX5935 addresses. A separate INT
output and four independent shutdown inputs (SHD_)
allow fast response from a fault to port shutdown. A
RESET input allows hardware reset of the device. A
special Watchdog feature allows the hardware to
gracefully take over control if the software crashes. A
cadence timing feature allows the MAX5935 to be used
in midspan systems.
The MAX5935 is fully software configurable and program-
mable. A class-over-current detection function enables
system power management to detect if a PD draws more
current than the allowable amount for its class. Other fea-
tures are input under/overvoltage lockout, overtempera-
ture protection, output voltage slew-rate limit during
startup, power-good, and fault status. The MAX5935s
programmability includes gate charging current, current-
limit threshold, startup timeout, overcurrent timeout,
autorestart duty cycle, PD disconnect AC detection
threshold, and PD disconnect detection timeout.
The MAX5935 is available in a 36-pin SSOP package
and is rated for both extended (-40癈 to +85癈) and
commercial (0癈 to +70癈) temperature ranges.
Applications
Power-Sourcing Equipment (PSE)
Power-Over-LAN/Power-Over-Ethernet
Switches/Routers
Midspan Power Injectors
Features
f IEEE 802.3af Compliant
f Controls Four Independent, -48V-Powered
Ethernet Ports in Either Endpoint or Midspan PSE
Applications
f Wide Digital Power Input, V
DIG
, Common-Mode
Range: V
EE
to (AGND + 7.7V)
f PD Violation of Class Current Protection
f PD Detection and Classification
f Provides Both DC and AC Load Removal
Detections
f I
2
C-Compatible, 3-Wire Serial Interface
f Fully Programmable and Configurable Operation
Through I
2
C Interface
f Current Foldback and Duty-Cycle-
Controlled/Programmable Current Limit
f Short-Circuit Protection with Fast Gate Pulldown
f Direct Fast Shutdown Control Capability
f Programmable Direct Interrupt Output
f Watchdog Mode Enable Hardware Graceful
Takeover
Quad Network Power Controller
for Power-Over-LAN
________________________________________________________________ Maxim Integrated Products 1
36
35
34
33
32
31
30
29
28
27
26
25
24
23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
OSC_IN
AUTO
OUT1
GATE1
SENSE1
OUT2
GATE4
GATE2
SENSE2
V
EE
OUT3
GATE3
SENSE3
OUT4
DET4
DET3
DET2
DET1
A0
A1
A2
A3
SDAIN
SDAOUT
SCL
MIDSPAN
SSOP
TOP VIEW
MAX5935
22
21
20
19
15
16
17
18
SENSE4
AGND
V
DD
DGND
RESET
INT
SHD1
SHD2
SHD3
SHD4
Pin Configuration
19-3412; Rev 3; 5/07
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.
Ordering Information
PART
TEMP RAN E PIN-PA KA E
PKG
DE
MAX
AX
0癈 to +70癈
36 SSOP
A -2
MAX
AX+ 0癈 to +70癈
36 SSOP
A -2
MAX
EAX
-40癈 to +85癈
36 SSOP
A -2
MAX
EAX+ -40癈 to +85癈
36 SSOP
A -2
Typical Operating Circuits appear at end of data sheet.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5935EAX+ | 功能描述:热插拔功率分布 Quad Network Power Controller 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 |
| MAX5935EAX+T | 功能描述:热插拔功率分布 Quad Network Power Controller 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 |
| MAX5935EAX-T | 功能描述:热插拔功率分布 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 |
| MAX5936AAESA | 功能描述:热插拔功率分布 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 |
| MAX5936AAESA+ | 功能描述:热插拔功率分布 48V- Hot-Swap Controller 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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