參數(shù)資料
型號: MAX5935EAX+
廠商: Maxim Integrated
文件頁數(shù): 33/44頁
文件大?。?/td> 700K
描述: IC CTRLR POWER QUAD 36-SSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 30
類型: 以太網(wǎng)供電控制器(PoE)
應(yīng)用: 遠(yuǎn)程外設(shè)(工業(yè)控制,相機(jī),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(yīng)商設(shè)備封裝: 36-SSOP
包裝: 管件
Use TF_PR[3:0] to set the nominal value for t
DISC
according to the following formula:
t
DISC
nominal = 238ms + 16ms x N
where N is the decimal value of the binary words
TF_PR[3:0].
A reset sets R27h = 47h, which sets t
DISC
nominal =
350ms as shown in the Electrical Characteristics. Use
R27h in conjunction with the two TDISC[1:0] bits in reg-
ister R16h to program the values of t
DISC
from 60ms to
almost 340ms with a 16ms resolution.
Example: Set TD_PR[3:0] = 1111b, TDISC[1:0] = 11b
Then:
t
DISC
= 2 x t
DISC
nominal
= 2 x (238ms + 16ms x 15)
= 956ms
Note: The programmed value has the same percent-
age tolerance as the value specified in the Electrical
Characteristics.
Quad Network Power Controller
for Power-Over-LAN
______________________________________________________________________________________   33
ADDRESS = 23h
YMB  L
BIT
R/W
DESCRIPTION
7
R/W
IGATE[2]
6
R/W
IGATE[1]
IGATE
5
R/W
IGATE[0]
DET_BYP
4
R/W
Detect bypass protection in AUTO mode
F R
3
R/W
OSC_FAIL Reset Bit
2
R/W
AC_TH[2]
1
R/W
AC_TH[1]
AC_TH
0
R/W
AC_TH[0]
Table 27. Program Register 1
ADDRESS = 27h
YMB  L
BIT
R/W
DESCRIPTION
7
R
IMAX[3]. V
SU_LIM
 programming bit 3
6
R
IMAX[2]. V
SU_LIM
 programming bit 2
5
R
IMAX[1]. V
SU_LIM
 programming bit 1
IMAX
4
R
IMAX[0]. V
SU_LIM
 programming bit 0
3
R
TD_PR[3]. t
DISC
 nominal programming bit 3
2
R
TD_PR [2]. t
DISC
 nominal programming bit 2
1
R
TD_PR [1]. t
DISC
 nominal programming bit 1
TD_PR
0
R
TD_PR [0]. t
DISC
 nominal programming bit 0
Table 28. Program Register 2
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