VCC to GND. . . ." />
參數(shù)資料
型號(hào)： ISL8491EIB
廠商： Intersil
文件頁數(shù)： 8/13頁
文件大?。?/td> 0K
描述： IC TXRX RS485/422 5V ESD 14SOIC
標(biāo)準(zhǔn)包裝： 50
類型： 收發(fā)器
驅(qū)動(dòng)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： 14-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 14-SOICN
包裝： 管件
4
FN6073.4
July 26, 2007
Absolute Maximum Ratings
Thermal Information
VCC to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC + 0.5V)
Input/Output Voltages
A, B, Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8V to + 12.5V
RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC + 0.5V)
Short Circuit Duration
Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
Thermal Resistance (Typical)
θ
JA (°C/W)
8 Ld SOIC Package (Note 3) . . . . . . . . . . . . . . . . . .
170
14 Ld SOIC Package (Note 3) . . . . . . . . . . . . . . . . .
128
Maximum Junction Temperature (Plastic Package) . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . -65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTE:
3.
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°C,
(Note 4).
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(°C)
MIN
(NOTE 9)
TYP
MAX
(NOTE 9) UNITS
DC CHARACTERISTICS
Driver Differential VOUT (no load)
VOD1
Full
-
VCC
V
Driver Differential VOUT (with load)
VOD2
R = 50
Ω (RS-422) (Figure 1)
Full
2
3
-
V
R = 27
Ω (RS-485) (Figure 1)
Full
1.5
2.3
5
V
Change in Magnitude of Driver
Differential VOUT for Complementary
Output States
ΔV
OD
R = 27
Ω or 50Ω (Figure 1)
Full
-
0.01
0.2
V
Driver Common-Mode VOUT
VOC
R = 27
Ω or 50Ω (Figure 1)
Full
-
3
V
Change in Magnitude of Driver
Common-Mode VOUT for
Complementary Output States
ΔVOC
R = 27
Ω or 50Ω (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
DI
Full
-2
-
2
μA
DE, RE (Note 8)
Full
-40
-
40
μA
Input Current (A, B) (Note 7)
IIN2
DE = 0V, VCC = 0V
or 4.5V to 5.5V
VIN = 12V
Full
-
1
mA
VIN = -7V
Full
-0.8
-
mA
Driver Three-State Output Current (Y, Z)
IOZD
DE = 0V, -7V
≤ VO ≤ 12V (Note 8)
Full
-100
-
100
μA
Receiver Differential Threshold Voltage
VTH
-7V
≤ VCM ≤ 12V
Full
-0.2
-
0.2
V
Receiver Input Hysteresis
ΔVTH
VCM = 0V
25
-
70
-
mV
Receiver Output High Voltage
VOH
IO = -4mA, VID = 200mV
Full
3.5
-
V
Receiver Output Low Voltage
VOL
IO = 4mA, VID = 200mV
Full
-
0.4
V
Receiver Three-State Output Current
IOZR
RE = VCC, 0.4V ≤ VO ≤ 2.4V (Note 8)
Full
-
±1
μA
Receiver Input Resistance
RIN
-7V
≤ V
CM ≤ 12V
Full
12
-
k
Ω
No-Load Supply Current (Note 5)
ICC
ISL8488E, DI = 0V or VCC
Full
-
120
140
μA
ISL8489E, DE, DI, RE = 0V or VCC
Full
-
140
190
μA
ISL8490E/ISL8491E, DE, DI, RE = 0V or
VCC
Full
-
370
460
μA
Driver Short-Circuit Current,
VO = High or Low
IOSD1
DE = VCC, -7V ≤ VY or VZ ≤ 12V (Note 6)
Full
35
-
250
mA
ISL8488E, ISL8489E, ISL8490E, ISL8491E
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