- 您現在的位置：買賣IC網 > PDF目錄9836 > MAX1482ESD+T (Maxim Integrated Products)IC TXRX RS485/RS422 LP 14-SOIC PDF資料下載
參數資料
| 型號： | MAX1482ESD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 14/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485/RS422 LP 14-SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 驅動器/接收器數： | 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： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 14-SOIC |
| 包裝： | 帶卷 (TR) |
Low-Power Shutdown Mode
A low-power shutdown mode is initiated by bringing RE
high and DE low. The devices will not shut down unless
both the driver and receiver are disabled. In shut-
down, the devices typically draw 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 shut-
down.
For the receiver, the tZH and tZL enable times assume
the part was not in the low-power shutdown state. The
tZH(SHDN) and tZL(SHDN) enable times assume the
parts were shut down (see Electrical Characteristics).
It takes the receivers longer to become enabled from
the low-power shutdown state (tZH(SHDN), tZL(SHDN))
than from the operating mode (tZH, tZL). (The parts are
in operating mode if the RE , DE inputs equal a logical
0,1 or 1,1 or 0,0.)
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 rises
excessively.
Propagation Delay
Digital encoding schemes depend on the driver and
receiver skew. Skew is defined as the difference
between the rising and falling propagation delay times.
Typical propagation delays are shown in Figures 11
and 12 using Figure 10’s test circuit.
The difference in receiver delay times, | tPLH - tPHL |, is
typically under 160ns.
The driver skew times are typically 160ns (800ns max).
MAX1482/MAX1483
20A, 18-Unit-Load, Slew-Rate-Limited
RS-485 Transceivers
_______________________________________________________________________________________
9
RO
5V/div
B
A
500mV/div
500ns/div
RO
5V/div
A
B
500mV/div
500ns/div
Figure 11. Receiver tPHL
Figure 12. Receiver tPLH
相關PDF資料 |
PDF描述 |
|---|---|
| MAX3461CSD+T | IC TXRX RS485/RS422 14-SOIC |
| MAX3462CSA+T | IC TXRX RS485/422 8-SOIC |
| MAX3465CSD+T | IC TXRX RS485/422 14-SOIC |
| MAX3466CSD+T | IC TXRX RS485/422 14-SOIC |
| MAX3464CSA+T | IC TXRX RS485/422 8-SOIC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX14830ETM+ | 功能描述:UART 接口集成電路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| MAX14830ETM+T | 功能描述:UART 接口集成電路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| MAX14830EVKIT# | 功能描述:界面開發(fā)工具 MAX14830 Eval Kit RoHS:否 制造商:Bourns 產品: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 |
| MAX14830EVKIT+ | 制造商:Maxim Integrated Products 功能描述:QUAD UART EV-KIT WITH IO-LINK AND MULTIPROTOCOL - Boxed Product (Development Kits) |
| MAX1483C/D+ | 功能描述:RS-485接口IC low-power transceivers for RS-485 and RS-422 communication RoHS:否 制造商:Texas Instruments 數據速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復。