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| 型号： | MAX13448EESD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/14页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 FULL DUPLEX 14SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS485 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC |
| 包装： | 带卷 (TR) |
MAX13448E
±80V Fault-Protected Full-Duplex
RS-485 Transceiver
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +3.0 to +5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25°C.) (Notes 2, 3)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(All voltages reference to GND.)
Supply Voltage (VCC).............................................................+6V
Control Input Voltage (
RE, DE)...................-0.3V to (VCC + 0.3V)
Driver Input Voltage (DI).............................-0.3V to (VCC + 0.3V)
Receiver Input Voltage (A, B (Note 1)) ................................±80V
Driver Output Voltage (Y, Z (Note 1)) ..................................±80V
Receiver Output Voltage (RO)....................-0.3V to (VCC + 0.3V)
Short-Circuit Duration (RO, A, B) ...............................Continuous
Continuous Power Dissipation (TA = +70°C)
14-Pin SO (derate 8.3mW/°C above +70°C)................667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
VCC Supply Voltage Range
VCC
3.0
5.5
V
No load, DE, DI,
RE = 0V or VCC, VCC = 3.3V
15
Supply Current
IQ
No load, DE, DI,
RE = 0V or VCC, VCC = 5V
15
mA
DE = GND,
RE = VCC, VCC = 3.3V
100
Supply Current in Shutdown
Mode
ISHDN
DE = GND,
RE = VCC, VCC = 5V
100
A
DE = GND,
RE = GND, short to +60V
15
Supply Current with Output
Shorted to ±60V
ISHRT
DE = GND,
RE = GND, short to -60V
15
mA
DRIVER
RL = 100
Ω, Figure 1
2
VCC
Differential Driver Output
VOD
RL = 54
Ω, Figure 1
1.5
VCC
V
Change in Magnitude of
Differential Output Voltage
ΔVOD
RL = 100
Ω or 54Ω, Figure 1 (Note 4)
-0.2
0.2
V
Driver Common-Mode Output
Voltage
VOC
RL = 100
Ω or 54Ω, Figure 1
VCC/2
3
V
Change in Magnitude of
Common-Mode Voltage
ΔVOC
RL = 100
Ω or 54Ω, Figure 1 (Note 4)
-0.2
+0.2
V
DI = low, 0V
≤ VY or VZ ≤ +12V
+250
Driver Short-Circuit Output
Current
IOSD
DI = high, -7V
≤ VY or VZ ≤ VCC (Note 5)
-250
mA
DI = low, (VCC - 1V)
≤ VY or VZ ≤ +12V
+10
Driver Short-Circuit Foldback
Output Current
IOSDF
DI = high, -7V
≤ VY or VZ ≤ +1V
-10
mA
VY or VZ
≥ + 22V, RL = 100Ω
+6
Driver-Limit Short-Circuit
Foldback Output Current
IOSDL
VY or VZ
≤ -13V, RL = 100Ω
-6
mA
Driver Input High Voltage
VDIH
2V
Driver Input Low Voltage
VDIL
0.8
V
Driver Input Current
IDIN
-1
+1
A
Note 1: If the RS-485 transmission lines are unterminated and a short to a voltage VSHT occurs at a remote point on the line, an active
local driver (with DI switching) may see higher voltage than VSHT due to inductive kickback at the driver. Terminating the line
with a resistor equal to its characteristic impedance minimizes this kickback effect.
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