English
Language : 

ISL3293E Datasheet, PDF (8/17 Pages) Intersil Corporation – ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, Low Power, RS-485/RS-422 Transmitters
ISL3293E, ISL3294E, ISL3295E, ISL3296E, ISL3297E, ISL3298E
Electrical Specifications Test Conditions: VCC = 3.0V to 5.5V; VL = VCC (ISL3296E, ISL3297E, ISL3298E only); Typicals are at
TA = +25°C; Unless Otherwise Specified. (Note 7) (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP MIN
TYP
MAX
(°C) (Note 11) (Note 13) (Note 11) UNITS
Driver Disable from Output
High
tHZ RL = 500Ω, CL = 50pF, SW = GND (Figure 3) Full
-
30, 22
60
ns
Driver Disable from Output Low tLZ RL = 500Ω, CL = 50pF, SW = VCC (Figure 3) Full
-
25, 20
60
ns
NOTES:
7. 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.
8. Applies to peak current. See “Typical Performance Curves” on page 12 for more information.
9. tSKPP is the magnitude of the difference in propagation delays of the specified terminals of two units tested with identical test conditions (VCC,
temperature, etc.).
10. If the driver enable function isn’t needed, connect DE to VCC (or VL) through a 1kΩ to 3kΩ resistor.
11. Parts are 100% tested at +25°C. Over-temperature limits established by characterization and are not production tested.
12. Due to the high short circuit current at VCC > 3.6V, the outputs must not be shorted outside the range of GND to VCC or damage may occur. To
prevent excessive power dissipation that may damage the output, the short circuit current should be limited to ≤ 300mA during testing. It is best
to use an external resistor for this purpose, since the current limiting on the VO supply may respond too slowly to protect the output.
13. Typicals are measured at VCC = 3.3V for parameters specified with 3V ≤ VCC ≤ 3.6V, and are measured at VCC = 5V for parameters specified
with 4.5V ≤ VCC ≤ 5.5V. If VCC isn’t specified, then a single “TYP” entry applies to both VCC = 3.3V and 5V, and two entries separated by a
comma refer to VCC = 3.3V and 5V, respectively.
Test Circuits and Waveforms
VCC OR VL DE
DI
Z
D
Y
VOD
RL/2
RL/2 VOC
VCC OR VL DE
Z
DI
D
Y
VOD
375Ω
RL = 60Ω
VCM
-7V TO +12V
375Ω
FIGURE 1A. VOD AND VOC
FIGURE 1B. VOD WITH COMMON MODE LOAD
FIGURE 1. DC DRIVER TEST CIRCUITS
8
FN6544.0
September 19, 2007