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| 型号： | MAX3250EAI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS-232 250KBPS 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 2/2 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
MAX3250
±50V Isolated, 3.0V to 5.5V,
250kbps, 2 TX/2 RX, RS-232 Transceiver
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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 referenced to GND, unless otherwise noted.)
VCC ...........................................................................-0.3V to +6V
ISOCOM...............................................................................±80V
ISOVCC to ISOCOM.................................................-0.3V to +6V
V+ to ISOCOM (Note 1)............................................-0.3V to +7V
V- to ISOCOM (Note 1)............................................+0.3V to -7V
V+ + |V-| (Note 1) ...................................................................13V
Input Voltages
T_IN, SHDN ...........................................................-0.3V to +6V
R_IN to ISOCOM...............................................................±25V
Output Voltages
T_OUT to ISOCOM ........................................................±13.2V
R_OUT .....................................................-0.3V to (VCC + 0.3V)
FAULT....................................................................-0.3V to +6V
C1-, C2- ......................................................-0.3V to (VCC + 0.3V)
C1+, C2+, C3+, C3-, C4+, C4-
to ISOCOM .....................................-0.3V to (ISOVCC + 0.3V)
T_OUT Current ..............30mA (continuous), 50mA (peak, 10s)
R_IN Current..................30mA (continuous), 50mA (peak, 10s)
ISOCOM Current ...........30mA (continuous), 50mA (peak, 10s)
Short-Circuit Duration T_OUT to ISOCOM .................Continuous
Continuous Power Dissipation (TA = +70°C)
28-Pin SSOP (derate 15mW/°C above +70°C) .......1201.2mW
Operating Temperature Ranges
MAX3250CAI .....................................................0°C to +70°C
MAX3250EAI...................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
ELECTRICAL CHARACTERISTICS
(VCC = 3.0V to 5.5V, see Typical Operating Circuit and Table 1 for capacitor values, ISOCOM = GND, TA = TMIN to TMAX, unless oth-
erwise noted. Typical values are at VCC = 3.3V and TA = +25°C.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
Supply Current
SHDN = VCC, no load
15
35
mA
SHDN = GND, VISOCOM = GND
20
45
Supply Current Shutdown
SHDN = GND, VISOCOM =
±50V
±350
A
Maximum Ground Differential
|VGND - VISOCOM|
50
V
Isolation Resistance
Between GND and ISOCOM
60
k
LOGIC INPUTS
Input Logic Low
T_IN, SHDN
0.8
V
VCC = 3.3V
2.0
Input Logic High
T_IN, SHDN
VCC = 5.0V
2.4
V
Transmitter Input Hysteresis
0.5
V
Input Leakage Current
T_IN, SHDN
-1
±0.01
+1
A
RECEIVER OUTPUTS
Output Leakage Current
SHDN = GND
-10
±0.05
+10
A
Output-Voltage Low
IOUT = 1.6mA
0.4
V
Output-Voltage High
IOUT = -1.0mA
VCC - 0.6 VCC - 0.1
V
FAULT OUTPUT
Output-Voltage Low
(Open Drain)
IOUT = 5mA
0.4
V
Output Leakage Current
FAULT not asserted
1
A
FAULT Trip Level
|VGND - VISOCOM|
55
V
Note 1: V+ and V- can have a maximum magnitude of 7V, but their absolute difference cannot exceed 13V.
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