参数资料
型号: MAX1483ESA+
厂商: Maxim Integrated Products
文件页数: 14/14页
文件大小: 0K
描述: IC TXRX RS485/RS422 LP 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
类型: 收发器
驱动器/接收器数: 1/1
规程: RS422,RS485
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
产品目录页面: 1402 (CN2011-ZH PDF)
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
相关PDF资料
PDF描述
VE-BW3-MW CONVERTER MOD DC/DC 24V 100W
VE-BW2-MX-F4 CONVERTER MOD DC/DC 15V 75W
VI-B1K-IV-F2 CONVERTER MOD DC/DC 40V 150W
VE-BW2-MX-F2 CONVERTER MOD DC/DC 15V 75W
MAX488ESA+ IC TXRX RS485/RS422 8-SOIC
相关代理商/技术参数
参数描述
MAX1483ESA+ 功能描述:RS-422/RS-485 接口 IC Slew-Rate-Limited RS-485 Transceivers RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube
MAX1483ESA+T 功能描述:RS-422/RS-485 接口 IC Slew-Rate-Limited RS-485 Transceivers RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube
MAX1483ESA-T 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX1483EUA+ 功能描述:RS-422/RS-485 接口 IC Slew-Rate-Limited RS-485 Transceivers RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube
MAX1483EUA+T 功能描述:RS-485接口IC Slew-Rate-Limited RS-485 Transceivers RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube