參數(shù)資料
型號： MAX4838
廠商： Maxim Integrated Products, Inc.
英文描述： Overvoltage Protection Controllers with Status FLAG
中文描述： 過壓保護(hù)控制器，帶有狀態(tài)標(biāo)示FLAG
文件頁數(shù)： 9/19頁
文件大?。?/td> 439K
代理商： MAX4838
MAX483/MAX487/MAX488/MAX489:
Reduced EMI and Reflections
The MAX483 and MAX487–MAX489 are slew-rate limit-
ed, minimizing EMI and reducing reflections caused by
improperly terminated cables. Figure 12 shows the dri-
ver output waveform and its Fourier analysis of a
150kHz signal transmitted by a MAX481, MAX485,
MAX490, MAX491, or MAX1487. High-frequency har-
monics with large amplitudes are evident. Figure 13
shows the same information displayed for a MAX483,
MAX487, MAX488, or MAX489 transmitting under the
same conditions. Figure 13’s high-frequency harmonics
have much lower amplitudes, and the potential for EMI
is significantly reduced.
M
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
_______________________________________________________________________________________
9
R
R
Y
Z
V
OD
V
OC
RECEIVER
OUTPUT
TEST POINT
1k
1k
S1
S2
V
CC
C
RL
15pF
DI
DE
3V
Y
Z
C
L1
C
L2
A
B
RO
RE
R
DIFF
V
ID
OUTPUT
UNDER TEST
500
S1
S2
V
CC
C
L
_________________________________________________________________Test Circuits
Figure 4. Driver DC Test Load
Figure 5. Receiver Timing Test Load
Figure 6. Driver/Receiver Timing Test Circuit
Figure 7. Driver Timing Test Load
相關(guān)PDF資料
PDF描述
MAX487E 【15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers
MAX490 Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX490C Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX490CPA Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX490CSA Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4838AELT+ 制造商:Maxim Integrated Products 功能描述:OVERVOLT PROT CNTRLR 6PIN UDFN - Rail/Tube
MAX4838AELT+T 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Overvoltage Protect Ctlr w/Status FLAG RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel
MAX4838AEXT+ 制造商:Maxim Integrated Products 功能描述:OVERVOLT PROT CNTRLR 6PIN SC-70 - Rail/Tube
MAX4838AEXT+T 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Overvoltage Protect Ctlr w/Status FLAG RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel
MAX4838EXT 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION CONTROLLERS - Rail/Tube
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