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参数资料
| 型号： | MAX5965AEAX+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | High-Power, Quad, Monolithic, PSE Controllers for Power over Ethernet; Package: SSOP;36 pin;163 mm² ; Temperature: -40°C to +85°C |
| 中文描述： | 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36 |
| 封装： | ROHS COMPLIANT, SSOP-36 |
| 文件页数： | 35/54页 |
| 文件大小： | 1525K |
| 代理商： | MAX5965AEAX+ |
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MAX5965A/MAX5965B
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
40
______________________________________________________________________________________
The CLC_EN enables the large capacitor detection fea-
ture. When CLC_EN is set the device can recognize a
capacitor load up to 150F. If the CLC_EN is reset, the
MAX5965A/MAX5965B perform normal detection.
AC_TH allows programming of the threshold of the AC
disconnect comparator. The threshold is defined as a
current since the comparators verify that the peak of
the current pulses sensed at the DET_ input exceed a
preset threshold. The current threshold is defined as
follows:
IAC_TH = 226.68A + 28.33 x NAC_TH
where NAC_TH is the decimal value of AC_TH.
When set low, DET_BY inhibits port power-on if the dis-
covery detection was bypassed in auto mode. When
set high, DET_BY allows the device to turn on power to
a non-IEEE 802.3af load without doing detection. If
OSCF_RS is set high, the OSC_FAIL bit is ignored. A
reset or power-up sets R23h = 04h. Default IAC_TH is
340A.
Table 27. Switch Mode Register
ADDRESS = 1Fh
SYMBOL
BIT
R/W
DESCRIPTION
EN_WHDOG
7
R/W
A logic-high enables the watchdog function
WD_INT_EN
6
R/W
Enables interrupt on SMODE_ bits
Reserved
5
—
Reserved
4
—
Reserved
HWMODE4
3
R/W
Port 4 switches to AUTO if logic-high and to SHUTDOWN if logic-low when watchdog timer
expires
HWMODE3
2
R/W
Port 3 switches to AUTO if logic-high and to SHUTDOWN if logic-low when watchdog timer
expires
HWMODE2
1
R/W
Port 2 switches to AUTO if logic-high and to SHUTDOWN if logic-low when watchdog timer
expires
HWMODE1
0
R/W
Port 1 switches to AUTO if logic-high and to SHUTDOWN if logic-low when watchdog timer
expires
Table 28. Program Register
ADDRESS = 23h
SYMBOL
BIT
R/W
DESCRIPTION
Reserved
7
—
Reserved
6
—
Reserved
CLC_EN
5
R/W
Large capacitor detection enable
DET_BY
4
R/W
Enables skipping detection in AUTO mode
OSCF_RS
3
R/W
OSC_FAIL reset bit
2
R/W
AC_TH[2]
1
R/W
AC_TH[1]
AC_TH
0
R/W
AC_TH[0]
Setting EN_WHDOG (Table 27) high activates the
watchdog counter. When the counter reaches zero, the
port switches to the hardware-controlled mode deter-
mined by the corresponding HWMODE_ bit. A low in
HWMODE_ switches the port into shutdown by setting
the bits in register R12h to 00. A high in HWMODE_
switches the port into auto mode by setting the bits in
register R12h to 11. If WD_INT_EN is set, an interrupt is
sent if any of the SMODE bits are set. A reset sets R1Fh
= 00h.
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相关代理商/技术参数 |
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|---|---|
| MAX5965AEAX+ | 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 |
| MAX5965AEAX+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 |
| MAX5965AUAX+ | 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 |
| MAX5965AUAX+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 |
| MAX5965BCAX+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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