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| 型号： | MAX5980GTJ+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 13/49页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PD IEEE 802.3AF 32TQFN |
| 标准包装： | 2,500 |
| 类型： | 以太网供电控制器 PD 开关（PoE） |
| 应用： | 供电设备（PSE） |
| 内部开关： | * |
| 电流限制： | * |
| 电源电压： | * |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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Quad, IEEE 802.3at/af PSE Controller
for Power-over-Ethernet
Pin Description (continued)
PIN
11
12
13, 27
14
15, 18, 21,
24
16, 19, 22,
25
17, 20, 23,
26
28
29
30
31
32
—
NAME
V EE
V DD
N.C.
AGND
SENSE4,
SENSE3,
SENSE2,
SENSE1
GATE4,
GATE3,
GATE2,
GATE1
OUT4,
OUT3,
OUT2,
OUT1
SVEE1
EN_CL5
AUTO
MIDSPAN
INT
EP
FUNCTION
Analog Low-Side Supply Input. Bypass with an external 100V, 0.1 F F ceramic capacitor between
AGND and V EE .
Digital High-Side Supply Output. Bypass with an external RC network; see the V DD Power Supply
section for details.
No Connection. Not internally connected. Leave N.C. unconnected.
Analog High-Side Supply Input
Current-Sense Positive Terminal Inputs. Connect to the source of the external power MOSFET and
connect a 0.25 I current-sense resistor between SENSE_ and SVEE _ . Use Kelvin-sensing technique in
PCB layout for best accuracy current sensing.
Port_ MOSFET Gate Drivers. Connect GATE_ to the gate of the external power MOSFET (see the
Typical Operating Circuit ).
Port Output Voltage Senses. Connect OUT_ to the port output.
Port 1/2 Current-Sense Negative Terminal Input. Use Kelvin sensing technique in PCB layout for best
accuracy current sensing.
Class 5 Enable Input. Referenced to DGND. EN_CL5 is internally pulled down to DGND. Leave
unconnected to disable the classification for Class 5 devices (IEEE 802.3at-compliant mode). Connect
EN_CL5 to V DD to enable the classification of Class 5 devices. EN_CL5 is latched in after the device
is powered up or after a reset condition.
Auto/Shutdown Mode Input. Referenced to DGND. AUTO is internally pulled up to V DD . Leave
unconnected to put the device into auto mode by default. Connect AUTO to DGND instead to set the
default mode to shutdown. In either configuration, the software can change the operating mode of the
device. AUTO is latched in after the device is powered up or after a reset condition.
Detection Collision Avoidance Logic Input. Referenced to DGND. MIDSPAN is internally pulled up
to V DD . Leave unconnected to activate midspan mode, or connect to DGND to disable this function.
MIDSPAN is latched in after the device is powered up or after a reset condition.
Open-Drain Interrupt Output. Referenced to DGND. INT is pulled low whenever an interrupt is sent to
the microcontroller. See the Interrupt section for details. Connect to DGND if the I 2 C interface is not
used.
Exposed Pad. EP is internally connected to V EE . Connect EP to V EE externally.
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5980UTJ+ | 功能描述:电源开关 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| MAX5980UTJ+T | 功能描述:电源开关 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| MAX5981AETE+ | 功能描述:热插拔功率分布 IEEE 802.3af/at PDIC 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 |
| MAX5981AETE+T | 功能描述:热插拔功率分布 IEEE 802.3af/at PDIC 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 |
| MAX5981AEVKIT# | 制造商:Maxim Integrated Products 功能描述:EVKIT FOR POWERED DEVICE INTERFACE CONTROLLERS WITH INTEGRAT - Boxed Product (Development Kits) 制造商:Maxim Integrated Products 功能描述:KIT EVAL INTERFACE CONTROLLER |
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