参数资料
| 型号： | ISL81485IBZ-T |
| 厂商： | Intersil |
| 文件页数： | 5/11页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485/422 5V HS 8-SOIC |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422，RS485 |
| 电源电压： | 4.5 V ~ 5.5 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-SOICN |
| 包装： | 带卷 (TR) |
3
Absolute Maximum Ratings
Thermal Information
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V
Input / Output Voltages
A/Y, B/Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8V to +12.5V
RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC +0.5V)
Short Circuit Duration
Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Operating Conditions
Temperature Range
ISL81485IX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
Thermal Resistance (Typical, Note 1)
θ
JA (
oC/W)
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . .
105
8 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . .
140
Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = 25oC,
Note 2
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(oC)
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
Driver Differential VOUT (no load)
VOD1
Full
-
VCC
V
Driver Differential VOUT (with load)
VOD2
R = 50
(RS-422) (Figure 1A)
Full
2.5
3
-
V
R = 27
(RS-485) (Figure 1A)
Full
2
2.5
5
V
RD = 60, -7V ≤ VCM ≤ 12V (Figure 1B)
Full
1.5
-
V
Change in Magnitude of Driver
Differential VOUT for
Complementary Output States
VOD
R = 27
or 50 (Figure 1A)
Full
-
0.01
0.2
V
Driver Common-Mode VOUT
VOC
R = 27
or 50 (Figure 1A)
Full
-
3
V
Change in Magnitude of Driver
Common-Mode VOUT for
Complementary Output States
VOC
R = 27
or 50 (Figure 1A)
Full
-
0.01
0.2
V
Logic Input High Voltage
VIH
DE, DI, RE
Full
2
-
V
Logic Input Low Voltage
VIL
DE, DI, RE
Full
-
0.8
V
Logic Input Current
IIN1
DE, DI, RE
Full
-1
-
1
A
Input Current (A/Y, B/Z) (Note 5)
IIN2
DE = 0V, VCC = 0V or
4.5 to 5.5V
VIN = 12V
Full
-
1
mA
VIN = -7V
Full
-0.8
-
mA
Receiver Differential Threshold
Voltage
VTH
-7V
≤ V
CM ≤ 12V
Full
-0.2
-
0.2
V
Receiver Input Hysteresis
VTH
VCM = 0V
25
-
40
-
mV
Receiver Output High Voltage
VOH
IO = -4mA, VID = 200mV
Full
4
-
V
Receiver Output Low Voltage
VOL
IO = -4mA, VID = 200mV
Full
-
0.4
V
Three-State (high impedance)
Receiver Output Current
IOZR
0.4V
≤ VO ≤ 2.4V
Full
-
±1
A
Receiver Input Resistance
RIN
-7V
≤ VCM ≤ 12V
Full
12
-
k
No-Load Supply Current, Note 3
ICC
DI, RE = 0V or VCC
DE = VCC
Full
-
1
2.2
mA
DE = 0V
Full
-
0.8
1
mA
Driver Short-Circuit Current,
VO = High or Low
IOSD1
DE = VCC, -7V ≤ VY or VZ ≤ 12V (Note 4)
Full
60
-
250
mA
ISL81485
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