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參數(shù)資料
| 型號： | MAX1481EUB+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485/RS422 10-UMAX |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 10-µMAX |
| 包裝： | 帶卷 (TR) |
MAX1481/MAX1484/MAX1485/MAX1486
Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited,
12Mbps, RS-485/RS-422 Transceivers in MAX Package
12
______________________________________________________________________________________
Low-Power Shutdown Mode
(MAX1481 only)
Low-power shutdown mode is initiated by bringing both
RE high and DE low. In shutdown, the MAX1481 typi-
cally draws only 0.1A of supply current.
RE and DE may be driven simultaneously; the parts are
guaranteed not to enter shutdown if RE is high and DE
is low for less than 50ns. If the inputs are in this state
for at least 600ns, the parts are guaranteed to enter
shutdown.
Enable times t_ZH and t_ZL in the Switching Character-
istics tables assume the part was not in low-power shut-
down. Enable times t_ZH(SHDN) and t_ZL(SHDN) assume
the parts were shut down. It takes drivers and receivers
longer to become enabled from the low-power shutdown
mode (t_ZH(SHDN), t_ZL(SHDN)) than from the
driver/receiver disable mode (t_ZH, t_ZL).
Driver Output Protection
Excessive output current and power dissipation caused
by faults or by bus contention are prevented by two
mechanisms. A foldback current limit on the output
stage provides immediate protection against short cir-
cuits over the whole common-mode voltage range (see
Typical Operating Characteristics). In addition, a ther-
mal shutdown circuit forces the driver outputs into a
high-impedance state if the die temperature becomes
excessive.
VOH
VOL
A
B
1V
-1V
1.5V
OUTPUT
INPUT
RO
RPLH
RPHL
Figure 11. Receiver Propagation Delays
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
VCC
RO
0V
1.5V
VOL + 0.5V
VOH - 0.5V
1.5V
RZL(SHDN), RZL
RLZ
RZH(SHDN), RZH
RHZ
RE
Figure 12. Receiver Enable and Disable Times
(MAX1481/MAX1484 only)
R
B
RECEIVER
OUTPUT
ATE
A
VID
R
Figure 13. Receiver Propagation Delay Test Circuit
20dB/div
250kHz/div
2.5MHz
0Hz
MAX1481/4/5/6-fig14
Figure 14. Driver Output Waveform and FFT Plot of
MAX1484/MAX1486 Transmitting a 20kHz signal
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參數(shù)描述 |
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| MAX14820EETG+T | 制造商:Maxim Integrated Products 功能描述: |
| MAX14820ETG+ | 功能描述:輸入/輸出控制器接口集成電路 IO-Link Device Transceiver RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MAX14820ETG+T | 功能描述:輸入/輸出控制器接口集成電路 IO-Link Device Transceiver RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MAX14820EVKIT# | 功能描述:界面開發(fā)工具 MAX14820/21 EVAL KIT RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| MAX14821ETG+ | 功能描述:輸入/輸出控制器接口集成電路 NEW RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
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