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參數資料
| 型號： | SP3497EEN-L/TR |
| 廠商： | Exar Corporation |
| 文件頁數： | 12/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485/RS422 ESD 14NSOIC |
| 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： | 3.3V |
| 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（窄型） |
| 包裝： | 帶卷 (TR) |
SP3495E-3497E
4
HIGH SPEED +3.3V RS-485/RS-422 TRANSCEIVERS WITH +/-15KV ESD PROTECTION AND ADVANCED FAILSAFE
REV. 1.0.0
CAUTION:
ESD (Electrostatic Discharge) sensitive device. Permanent damage may occur on unconnected devices subject to high energy electrostatic fields. Unused
devices must be stored in conductive foam or shunts. Personnel should be properly grounded prior to handling this device. The protective foam should be
discharged to the destination socket before devices are removed.
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections to the
specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent
damage to the device.
VCC
+6.0V
Input Voltage at control pins (RE, DE and DI)
-0.5V to (VCC + 0.3V)
Voltage Range on A and B pins
-9V to +14V
Storage Temperature Range
-65°C to + 150°C
Power Dissipation
Maximum Junction Temperature 150°C
8-Pin SO
θ
JA = 128.4°C/W
14-Pin SO
θ
JA = 86°C/W
ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED: VCC = +3.0V TO +3.6V WITH TA FROM -40
OC TO +85OC. TYPICAL VALUES ARE AT
VCC = +3.3V AND 25
OC.
SYMBOL
PARAMETERS
MIN.TYP.
MAX.UNITS
CONDITIONS
DRIVER DC CHARACTERISTICS
VOD
Differential Driver Output
Vcc
V
No Load
2.0
RL = 100 (RS-422), Figure 3
1.5
RL = 54 (RS-485), Figure 3
1.5
VCM = -7V, Figure 4
1.5
VCM = +12V, Figure 4
V
OD
Change in Magnitude of Differential
Output
-0.20
0.20
V
RL = 100 (RS-422), Figure 3,
See note 1
-0.20
0.20
RL = 54 (RS-485), Figure 3,
See note 1
-0.20
0.20
VCM = -7V, Figure 4, See
note 1
-0.20
0.20
VCM = +12V, Figure 4, See note
1
VOC
Driver Common Mode Output
Voltage steady state
1.3
2.5
V
Figure 3
V
OC
Change in Magnitude of Common
Mode Output Voltage
-0.2
0.2
V
Figure 3, See note 1
IDSC
Driver Short Circuit Current Limit
-250
mA
VOUT Forced to -7V, Figure 5
250
mA
VOUT Forced to +12V, Figure 5
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