- 您现在的位置：买卖IC网 > PDF目录19751 > MAX5965AUAX+T (Maxim Integrated)IC PSE CTRLR FOR POE 36SSOP PDF资料下载
参数资料
| 型号： | MAX5965AUAX+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 22/54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) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页当前第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
22 ______________________________________________________________________________________
Table 3. Automatic ICUT Programming
CL_DISC
PORT
CLASSIFICATION
RESULT
ENx_CL6 EN_HP_ALL EN_HP_CL6 EN_HP_CL5 EN_HP_CL4
RESULTING ICUT
REGISTER BITS
0
Any
X
X
X
X
X
User programmed
1
1
X
X
X
X
X
ICUT = 110
1
2
X
X
X
X
X
ICUT = 111
1
0, 3
X
X
X
X
X
ICUT = 000
1
4, 5
X
0
X
X
X
ICUT = 000
1
5
X
1
X
1
X
ICUT = R24h[6:4]
1
5
X
1
X
0
X
ICUT = 000
1
4
X
1
X
x
1
ICUT = R24h[6:4]
1
4
X
1
X
X
0
ICUT = 000
1
6 or Illegal
0
X
X
X
X
1
6 or Illegal
1
1
1
X
X
(See Table 35a)
1
6 or Illegal
1
1
0
X
X
ICUT = 000
1
6 or Illegal
1
0
X
X
X
ICUT = 000
MOSFET Gate Driver
Connect the gate of the external n-channel MOSFET to
GATE_. An internal 50礎 current source pulls GATE_ to
(V
EE
+ 10V) to turn on the MOSFET. An internal 40礎
current source pulls down GATE_ to V
EE
to turn off the
MOSFET.
The pullup and pulldown current controls the maximum
slew rate at the output during turn-on or turn-off. Use
the following equation to set the maximum slew rate:
where C
GD
is the total capacitance between GATE and
DRAIN of the external MOSFET. Current limit and the
capacitive load at the drain control the slew rate during
startup. During current-limit regulation, the
MAX5965A/MAX5965B manipulate the GATE_ voltage
to control the voltage at SENSE_ (V
RS
). A fast pulldown
activates if V
RS
overshoots the limit threshold
(V
SU_LIM
). The fast pulldown current increases with the
amount of overshoot. The maximum fast pulldown cur-
rent is 100mA.
During turn-off, when the GATE_ voltage reaches a
value lower than 1.2V, a strong pulldown switch is acti-
vated to keep the MOSFET securely off.
V
t
I
C
OUT
GATE
GD
=
Figure 3a. Foldback Current Characteristics
48V
28V
V
SU_LIM
V
SU_LIM
/ 3
(V
RS
- V
EE
)
(V
OUT_
- V
EE
)
Figure 3b. Foldback Current Characteristics for High-Power Mode
48V
10V
V
SU_LIM
V
TH_FB
(V
RS
- V
EE
)
(V
OUT_
- V
EE
)
相关PDF资料 |
PDF描述 |
|---|---|
| MIC2214-SWBML TR | IC REG LDO 3.3V/1.6V 10MLF |
| MAX5929CEEG+T | IC HOT SWAP CTLR QUAD 24QSOP |
| GBM03DRKN | CONN EDGECARD 6POS DIP .156 SLD |
| VE-B6M-CY-B1 | CONVERTER MOD DC/DC 10V 50W |
| MAX5929DEEG+T | IC HOT SWAP CTLR QUAD 24QSOP |
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 |
发布紧急采购，3分钟左右您将得到回复。