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参数资料
| 型号： | MAX5981AETE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/16页 |
| 文件大小： | 1328K |
| 描述： | IC CTRLR PD IEEE 802.3AF 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 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： | 是 |
| 电流限制： | 720mA 至 880mA |
| 电源电压： | 31 V ~ 60 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
IEEE 802.3af/at-Compliant, Powered Device Interface
Controllers with Integrated Power MOSFET
_______________________________________________________________________________________ 7
Pin Description
PIN
NAME
FUNCTION
1
N.C.
No Connection. Not internally connected.
2
V
DD
Positive Supply Input. Connect a 68nF (min) bypass capacitor between V
DD
and V
SS
.
3
DET
Detection Resistor Input. Connect a signature resistor (R
DET
= 24.9kI) from DET to V
DD
.
4
I.C.
Internally Connected. Leave unconnected.
5, 6
V
SS
Negative Supply Input. V
SS
connects to the source of the integrated isolation n-channel power MOSFET.
7, 8
RTN
Drain of Isolation MOSFET. RTN connects to the drain of the integrated isolation n-channel power
MOSFET. Connect RTN to the downstream DC-DC converter ground as shown in the Typical Application
Circuit.
9
WAD
Wall Power Adapter Detector Input. Wall adapter detection is enabled the moment V
DD
- V
SS
crosses
the mark event threshold. Detection occurs when the voltage from WAD to RTN is greater than 9V. When
a wall power adapter is present, the isolation n-channel power MOSFET turns off, 2EC current sink turns
on. Connect WAD directly to RTN when the wall power adapter or other auxiliary power source is not
used.
10
PG
Open-Drain Power-Good Indicator Output. PG sinks 230FA to disable the downstream DC-DC converter
while turning on the hot-swap MOSFET switch. PG current sink is disabled during detection, classifica-
tion, and in the steady-state power mode. The PG current sink is turned on to disable the downstream
DC-DC converter when the device is in sleep mode.
Pin Configuration
3
4
2
1
10
9
11
EP*
5
6
V
DD
8
16
15
13
DET
I.C.
CLS
2EC
PG
WAD
MAX5981A
MAX5981B
7
14
N.C.
TQFN
12
CONNECT TO V
SS
.
+
TOP VIEW
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX5981BETE+ | 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 |
| MAX5981BETE+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 |
| MAX5982AETE+ | 功能描述:热插拔功率分布 PDIC, up to 70W 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 |
| MAX5982AETE+T | 功能描述:热插拔功率分布 PDIC, up to 70W 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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