參數(shù)資料
型號(hào)： ADM2490E
廠商： Analog Devices, Inc.
元件分類： RS-485
英文描述： High Speed, ESD-Protected, Full-Duplex, iCoupler, Isolated RS-485 Transceiver
中文描述： 高速，ESD保護(hù)，全雙工，所以iCoupler，隔離型RS - 485收發(fā)器
文件頁(yè)數(shù)： 5/16頁(yè)
文件大小： 470K
代理商： ADM2490E
ADM2490E
ADM2490E CHARACTERISTICS
PACKAGE CHARACTERISTICS
Rev. 0 | Page 5 of 16
Table 4.
Parameter
Resistance (Input-Output)
1
Capacitance (Input-Output)
1
Input Capacitance
2
Input IC Junction-to-Case Thermal Resistance
Symbol
R
I-O
C
I-O
C
I
θ
JCI
Min
Typ
10
12
3
4
33
Max
Unit
Ω
pF
pF
°C/W
Test Conditions
f = 1 MHz
Thermocouple located at center
of package underside
Output IC Junction-to-Case Thermal Resistance
1
Device considered a 2-terminal device: Pins 1, 2, 3, 4, 5, 6, 7, and 8 are shorted together and Pins 9, 10, 11, 12, 13, 14, 15, and 16 are shorted together.
2
Input capacitance is from any input data pin to ground.
REGULATORY INFORMATION (PENDING)
θ
JCO
28
°C/W
Table 5.
UL
To be recognized under 1577 component recognition program:
1
5000 V rms isolation voltage
VDE
To be certified according to DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01:
2
Basic insulation, 848 V peak
Complies with DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01,
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000, reinforced
insulation, 560 V peak
1
In accordance with UL1577, each ADM2490E is proof tested by applying an insulation test voltage ≥ 6000 V rms for 1 second (current leakage detection limit = 10 μA).
2
In accordance with DIN EN 60747-5-2, each ADM2490E is proof tested by applying an insulation test voltage ≥ 1590 V peak for 1 second (partial discharge detection
limit = 5 pC).
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 6.
Parameter
Rated Dielectric Insulation Voltage
Minimum External Air Gap (Clearance)
Symbol
L(I01)
Value
5000
7.45
Unit
V rms
mm min
Conditions
1-minute duration.
Measured from input terminals to output
terminals, shortest distance through air.
Measured from input terminals to output
terminals, shortest distance along body.
Insulation distance through insulation.
DIN IEC 112/VDE 0303 Part 1.
Material Group (DIN VDE 0110, 1/89).
Minimum External Tracking (Creepage)
L(I02)
8.1
mm min
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index)
Isolation Group
CTI
0.017
>175
IIIa
mm min
V
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