參數(shù)資料
型號: MAX5935EAX+
廠商: Maxim Integrated
文件頁數(shù): 12/44頁
文件大小: 700K
描述: IC CTRLR POWER QUAD 36-SSOP
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 30
類型: 以太網(wǎng)供電控制器(PoE)
應用: 遠程外設(工業(yè)控制,相機,數(shù)據(jù)訪問)
內(nèi)部開關(guān):
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: 36-BSOP(0.295",7.50mm 寬)
供應商設備封裝: 36-SSOP
包裝: 管件
Detailed Description
The MAX5935 four-port network power controller con-
trols -32V to -60V negative supply rail systems. Use the
MAX5935, which is compliant with the IEEE 802.3af
standard for power-sourcing equipment (PSE) in
power-over-LAN applications. The MAX5935 provides
Power Device (PD) discovery, classification, current
limit, both DC and AC load disconnect detections, and
other necessary functions for an IEEE 802.3af-compli-
ant PSE. The MAX5935 can be used in either endpoint
PSE (LAN Switch/Router) or midspan PSE (Power
Injector) applications.
The MAX5935 is fully software-configurable and pro-
grammable with more than 25 internal registers. The
device features an I
2
C-compatible, 3-wire serial inter-
face and a class-over-current detection. The class-
Quad Network Power Controller
for Power-Over-LAN
12   ______________________________________________________________________________________
50礎(chǔ)
90礎(chǔ)
100mA
MAX
FAST
DISCHARGE
CONTROL
212mV
182mV
 13V CLAMP
CURRENT-LIMIT
DETECTOR
4mV
OVERCURRENT
(OVC)
OPEN CIRCUIT
(OC)
CURRENT
LIMIT (ILIM)
PWR_EN
10V
VOLTAGE
SENSING
FOLDBACK
CONTROL
9-BIT ADC
CONVERTER
VOLTAGE PROBING
AND
CURRENT-LIMIT
CONTROL
CURRENT SENSING
SENSE_
GATE_
OUT_
DET_
A = 3
AC
DETECTION
ACD_ENABLE
AC DISCONNECT
SIGNAL
(ACD)
ACD
REFERENCE
CURRENT
DETECTION/
CLASSIFICATION
SM
PORT
STATE
MACHINE
(SM)
REGISTER FILE
SERIAL
PORT
INTERFACE
(SPI)
AUTO
MIDSPAN
A0
A1
A2
A3
ANALOG
BIAS/
SUPPLY
MONITOR
AGND
V
EE
+10V ANALOG
+5V DIG
VOLTAGE
REFERENCES
CURRENT
REFERENCES
CENTRAL LOGIC UNIT
(CLU)
DGND
OSC_IN
SCL    SDAIN  SDAOUT
V
DD
OSCILLATOR
MONITOR
SHD_
RESET
INT
MAX5935
Figure 1. MAX5935 Functional Diagram
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