VCC to Ground. . . . . . . . . . . . . ." />
參數(shù)資料
型號： ISL4485EIB-T
廠商： Intersil
文件頁數(shù)： 5/11頁
文件大?。?/td> 0K
描述： IC TXRX 1TX/1RX 5V RS-485 8-SOIC
標準包裝： 2,500
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 1/1
規(guī)程： RS422，RS485
電源電壓： 4.5 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOICN
包裝： 帶卷 (TR)
3
Absolute Maximum Ratings
Thermal Information
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC +0.5V)
Input / Output Voltages
A / Y, B / Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8V to +12.5V
RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC +0.5V)
Short Circuit Duration
Y, Z. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
Operating Conditions
Temperature Range
ISL4485EIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
Thermal Resistance (Typical, Note 1)
θ
JA (
oC/W)
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . .
170
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 low 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 = 25
oC, 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 1)
Full
2
3
-
V
R = 27
(RS-485), (Figure 1)
Full
1.5
2.3
5
V
Change in Magnitude of Driver
Differential VOUT for
Complementary Output States
V
OD
R = 27
or 50, (Figure 1)
Full
-
0.01
0.2
V
Driver Common-Mode VOUT
VOC
R = 27
or 50, (Figure 1)
Full
-
3
V
Change in Magnitude of Driver
Common-Mode VOUT for
Complementary Output States
VOC
R = 27
or 50, (Figure 1)
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
-25
-
25
A
Input Current (A, B), (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
≤ VCM ≤ 12V
Full
-0.2
-
0.2
V
Receiver Input Hysteresis
VTH
VCM = 0V
25
-
70
-
mV
Receiver Output High Voltage
VOH
IO = -4mA, VID = 200mV
Full
3.5
4
-
V
Receiver Output Low Voltage
VOL
IO = -4mA, VID = 200mV
Full
-
0.1
0.4
V
Three-State (high impedance)
Receiver Output Current
IOZR
0.4V
≤ VO ≤ 2.4V
Full
-
±1
A
Receiver Input Resistance
RIN
-7V
≤ V
CM ≤ 12V
Full
12
25
-
k
No-Load Supply Current, (Note 3)
ICC
DI, RE = 0V or VCC
DE = VCC
Full
-
700
900
A
DE = 0V
Full
-
500
565
A
Driver Short-Circuit Current,
VO = High or Low
IOSD1
DE = VCC, -7V ≤ VY or VZ ≤ 12V, (Note 4)
Full
35
-
250
mA
Receiver Short-Circuit Current
IOSR
0V
≤ VO ≤ VCC
Full
7
-
85
mA
ISL4485E
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