ISL4270E Datasheet, PDF (5/13 Pages) Intersil Corporation – QFN Packaged, ±15kV ESD Protected, +3V to +5.5V, 300nA, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply

ISL4270E
Electrical Specifications
PARAMETER
TTeyspticCaolsnadriteioantsT: _AV_C=C25=o3CV,
to 5.5V, C₁ - C₄ = 0.1µF, V_L =
V_CC = V_L = 3.3V (Continued)
V_CC;
Unless
Otherwise
Specified.
TEST CONDITIONS
TEMP MIN
MAX
(^oC) (Note 4) TYP (Note 4) UNITS
TRANSMITTER OUTPUTS
Output Voltage Swing
All Transmitter Outputs Loaded with 3kΩ to Ground
Full
±5.0
±5.4
-
V
Output Resistance
Output Short-Circuit Current
Output Leakage Current
V_CC = V+ = V- = 0V, Transmitter Output = ±2V
V_OUT = 0V
V_OUT = ±12V, V_CC = 0V or 3V to 5.5V
Automatic Powerdown or FORCEOFF = GND
Full
300
10M
-
Ω
Full
-
±35
±60
mA
Full
-
-
±25
μA
ENHANCED AUTOMATIC POWERDOWN (FORCEON = GND, FORCEOFF = V_CC)
Receiver Input Thresholds to
INVALID High
See Figure 4
Full
-2.7
-
2.7
V
Receiver Input Thresholds to
INVALID Low
See Figure 4
Full
-0.3
-
0.3
V
INVALID Output Voltage Low
I_OUT = 1.6mA
INVALID Output Voltage High
I_OUT = -1.0mA
Receiver Positive or Negative
See Figure 7
Threshold to INVALID High Delay
(t_INVH)
Receiver Positive or Negative
See Figure 7
Threshold to INVALID Low Delay
(t_INVL)
Receiver or Transmitter Edge to Note 3, See Figure 7
Transmitters Enabled Delay (t_WU)
Receiver or Transmitter Edge to
Transmitters Disabled Delay
(t_AUTOPWDN)
Note 3, See Figure 7
TIMING CHARACTERISTICS
Full
-
-
Full V_L - 0.6
-
25
-
1
0.4
V
-
V
-
μs
25
-
30
-
μs
25
-
100
-
μs
Full
15
30
60
sec
Maximum Data Rate
Receiver Propagation Delay
Time to Exit Powerdown
Transmitter Skew
Receiver Skew
Transition Region Slew Rate
R_L = 3kΩ, C_L = 1000pF, One Transmitter Switching
Full
250
500
Receiver Input to Receiver
Output, C_L = 150pF
t_PHL
t_PLH
25
-
0.15
25
-
0.15
T_X | V_OUT | ≥ 3.7V
25
-
100
t_PHL - t_PLH
25
-
100
t_PHL - t_PLH
25
-
50
V_CC = 3.3V,
C_L = 150pF to 1000pF
25
6
18
R_L = 3kΩ to 7kΩ,
Measured From 3V to -3V or -3V
C_L = 150pF to 2500pF
25
4
13
to 3V
-
kbps
-
μs
-
μs
-
μs
-
ns
-
ns
30
V/μs
30
V/μs
ESD PERFORMANCE
RS-232 Pins (T_OUT, R_IN)
Human Body Model
IEC61000-4-2 Air Gap Discharge
25
-
±15
-
kV
25
-
±15
-
kV
IEC61000-4-2 Contact Discharge
25
-
±8
-
kV
NOTES:
3. An “edge” is defined as a transition through the transmitter or receiver input thresholds.
4. 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.
5
FN6041.2
June 16, 2010