參數(shù)資料
型號(hào): DP83848C-POE-EK
廠商: National Semiconductor
文件頁(yè)數(shù): 63/86頁(yè)
文件大?。?/td> 0K
描述: BOARD EVALUATION DP83848C
標(biāo)準(zhǔn)包裝: 1
系列: PowerWise®
主要目的: 特殊用途 DC/DC,以太網(wǎng)供電(POE)
輸出及類(lèi)型: 1,隔離
功率 - 輸出: 24W
輸出電壓: 3.3V
電流 - 輸出: 7.3A
輸入電壓: 39 ~ 57V
穩(wěn)壓器拓?fù)浣Y(jié)構(gòu): 回掃
頻率 - 開(kāi)關(guān): 250kHz
板類(lèi)型: 完全填充
已供物品:
已用 IC / 零件: LM5072
相關(guān)產(chǎn)品: DP83848CVVX/NOPBTR-ND - TXRX ETHERNET PHYTER 48-LQFP
DP83848CVV-ND - IC TXRX ETHERNET PHYTER 48-LQFP
65
www.national.com
DP
83
84
8
C
8.2.2 Reset Timing
Note: It is important to choose pull-up and/or pull-down resistors for each of the hardware configuration pins that provide
fast RC time constants in order to latch-in the proper value prior to the pin transitioning to an output driver.
Parameter
Description
Notes
Min
Typ
Max
Units
T2.2.1
Post RESET Stabilization time
prior to MDC preamble for reg-
ister accesses
MDIO is pulled high for 32-bit serial man-
agement initialization
3
s
T2.2.2
Hardware Configuration Latch-
in Time from the Deassertion
of RESET (either soft or hard)
Hardware Configuration Pins are de-
scribed in the Pin Description section
3
s
T2.2.3
Hardware Configuration pins
transition to output drivers
50
ns
T2.2.4
RESET pulse width
X1 Clock must be stable for at min. of 1us
during RESET pulse low time.
1
s
Vcc
Hardware
RESET_N
MDC
32 clocks
Latch-In of Hardware
Configuration Pins
Dual Function Pins
Become Enabled As Outputs
input
output
X1 clock
相關(guān)PDF資料
PDF描述
695D335X9050F2T CAP TANT 3.3UF 50V 10% 2414
ISL62881CCPUEVAL2Z EVAL BOARD ISL62881CCPU 28QFN
MDC3105LT1 IC RELAY/DRVR INDUCT LOAD SOT23
LM4040D30ILPRE3 IC VREF SHUNT PREC 3V TO-92-3
ASPI-0602S-820M-T INDUCTOR POWER 82UH 0602 SMD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DP83848CVV 制造商:Texas Instruments 功能描述:IC, 10/100 ETHERNET PHY, SMD, LQFP48
DP83848CVV/NOPB 功能描述:以太網(wǎng) IC PHYTER COMMERCIAL TEMP SGL PORT RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
DP83848CVV/NOPB 制造商:Texas Instruments 功能描述:Ethernet Transceiver
DP83848CVVX 制造商:Texas Instruments 功能描述:PHY 1-CH 10Mbps/100Mbps 48-Pin LQFP T/R
DP83848CVVX/NOPB 功能描述:以太網(wǎng) IC PHYTER COMMERCIAL TEMP SGL PORT RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray