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參數資料
| 型號： | MAX5971AETI+ |
| 廠商： | Maxim Integrated |
| 文件頁數： | 11/22頁 |
| 文件大小： | 2126K |
| 描述： | IC CTRLR PD IEEE 802.3AF 28WQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 60 |
| 類型： | 以太網供電控制器 PD 開關（PoE） |
| 應用： | 供電設備（PSE） |
| 內部開關： | 是 |
| 電流限制： | 可調 |
| 電源電壓： | 32 V ~ 60 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 28-TQFN-EP（5x5） |
| 包裝： | 管件 |
______________________________________________________________________________________ 11
Single-Port, 40W, IEEE 802.3af/802.3at PSE
Controller with Integrated MOSFET
Pin Description
Pin Configuration
26
27
25
24
10
9
11
12
1 2
OUTP
4 5 6 7
20
21
19
17 16 15
OUT
OUT
V
EE_DIG
I.C.
I.C.
I.C.
MAX5971A
3
18
28
8
N.C.
I.C.
N.C.
23
13 LEGACY
DET
22
14
EN
*EXPOSED PAD, CONNECT TO AGND.
*EP
N.C.
THIN QFN
TOP VIEW
+
PIN
NAME
FUNCTION
1, 2, 3
V
EE
Analog Low-Side Supply Input. Bypass with an external 100V, 47FF capacitor in parallel with a
100V, 0.1FF ceramic capacitance between AGND and V
EE
.
4
ILIM1
Class 5 Current-Limit Digital Adjust 1. Referenced to V
EE
. ILIM1 is internally pulled up to the digital
supply. Use ILIM1 with ILIM2 to enable Class 5 operation and to adjust the Class 5 current-limit
value. See the Electrical Characteristics table and Table 3 in the Class 5 PD Classification section
for details.
5
ILIM2
Class 5 Current-Limit Digital Adjust 2. Referenced to V
EE
. ILIM2 is internally pulled up to the digital
supply. Use ILIM2 with ILIM1 to enable Class 5 operation and to adjust the Class 5 current-limit
value. See the Electrical Characteristics table and Table 3 in the Class 5 PD Classification section
for details.
6
PWMEN
PWM Control Logic Input. Referenced to V
EE
. PWMEN is internally pulled up to the digital sup-
ply. Leave unconnected to enable the internal PWM to drive the LED pin. Force low to disable the
internal PWM.
7
MIDSPAN
Detection Collision Avoidance Logic Input. Referenced to V
EE
. MIDSPAN is internally pulled up
to the digital supply. Leave unconnected to activate the detection collision avoidance circuitry
for midspan PSE systems. Force low to disable this function for an end-point PSE system. The
MIDSPAN logic level latches after the device is powered up or after a reset condition.
811, 15
I.C.
Internally Connected. Connect I.C. to V
EE
.
12
V
EE_DIG
Digital Low-Side Supply Input. Connect to V
EE
externally.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5971AETI+ | 功能描述:熱插拔功率分布 IEEE 802.3af/at PSE Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5971AETI+T | 功能描述:熱插拔功率分布 IEEE 802.3af/at PSE Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5971AETI+W | 制造商:Maxim Integrated Products 功能描述:IEEE802.3 AT PSE SWITCH - Rail/Tube |
| MAX5971AEVKIT | 功能描述:電源管理IC開發工具 RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX5971AEVKIT+ | 制造商:Maxim Integrated Products 功能描述:PD INTERFACE CONTROLLER - Boxed Product (Development Kits) |
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