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ISL31498E датащи(PDF) 11 Page - Intersil Corporation

номер детали ISL31498E
подробное описание детали  짹60V Fault Protected, 5V, RS-485/RS-422 Transceivers with 짹25V Common Mode Range
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производитель  INTERSIL [Intersil Corporation]
домашняя страница  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL31498E датащи(HTML) 11 Page - Intersil Corporation

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ISL31490E, ISL31491E, ISL31492E, ISL31493E, ISL31495E, ISL31496E,
11
FN7637.0
June 17, 2010
Receiver Disable from
Output Low
tLZ
RL = 1kΩ, CL = 15pF, SW = VCC
(Figure 6)
Full
-
-
50
ns
Receiver Disable from
Output High
tHZ
RL = 1kΩ, CL = 15pF, SW = GND
(Figure 6)
Full
-
-
50
ns
Time to Shutdown
tSHDN
(Note 15)
Full
60
160
600
ns
Receiver Enable from
Shutdown to Output High
tZH(SHDN) RL = 1kΩ, CL = 15pF, SW = GND
(Figure 6), (Notes 15, 17)
Full
-
-
2000
ns
Receiver Enable from
Shutdown to Output Low
tZL(SHDN) RL = 1kΩ, CL = 15pF, SW = VCC
(Figure 6), (Notes 15, 17)
Full
-
-
2000
ns
NOTES:
10. All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device
ground unless otherwise specified.
11. Supply current specification is valid for loaded drivers when DE = 0V.
12. Applies to peak current. See “Typical Performance Curves” beginning on page 16 for more information.
13. Keep RE = 0 to prevent the device from entering SHDN.
14. The RE signal high time must be short enough (typically <100ns) to prevent the device from entering SHDN.
15. Transceivers (except on the ISL31491E) are put into shutdown by bringing RE high and DE low. If the inputs are in this state
for less than 60ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts
are guaranteed to have entered shutdown. See “Low Power Shutdown Mode” on page 16.
16. Keep RE = VCC, and set the DE signal low time >600ns to ensure that the device enters SHDN.
17. Set the RE signal high time >600ns to ensure that the device enters SHDN.
18. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established
by characterization and are not production tested.
19. Tested according to TIA/EIA-485-A, Section 4.2.6 (±80V for 15μs at a 1% duty cycle).
20. Does not apply to the ISL31491E.
21. See “Caution” statement below the “Recommended Operating Conditions” section on page 6.
Test Circuits and Waveforms
FIGURE 1A. VOD AND VOC
FIGURE 1B. VOD AND VOC WITH COMMON MODE LOAD
FIGURE 1. DC DRIVER TEST CIRCUITS
Electrical Specifications Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V,
TA = +25°C (Note 10). Boldface limits apply over the operating temperature range,
-40°C to +85°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(°C)
MIN
(Note 18)
TYP
MAX
(Note 18) UNITS
D
DE
DI
VCC
VOD
VOC
RL/2
RL/2
Z
Y
D
DE
DI
VOD
375Ω
375Ω
Z
Y
VCM
VCC
RL/2
RL/2
VOC


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