Linear Technology LTM2882-5 RS232 µModule Isolator Demo Board (5.0V Supply) DC1554A-B DC1554A-B Data Sheet
Product codes
DC1554A-B
LTM2882
4
2882fd
swiTching characTerisTics
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. LTM2882-3 V
CC
= 3.3V, LTM2882-5 V
CC
= 5.0V, V
L
= V
CC
, and GND =
GND2 = 0V, ON = V
L
unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Data Rate
(T1IN to T1OUT, T2IN to T2OUT)
R
L
= 3kΩ, C
L
= 2.5nF (Note 3)
l
100
kbps
R
L
= 3kΩ, C
L
= 1nF (Note 3)
l
250
kbps
R
L
= 3kΩ, C
L
= 250pF (Note 3)
l
1000
kbps
Maximum Data Rate (DIN to DOUT)
C
L
= 15pF (Note 3)
l
10
Mbps
Driver
Driver Slew Rate (6V/t
THL
or t
TLH
)
R
L
= 3kΩ, C
L
= 50pF (Figure 1)
l
150
V/µs
t
PHLD
, t
PLHD
Driver Propagation Delay
R
L
= 3kΩ, C
L
= 50pF (Figure 1)
l
0.2
0.5
µs
t
SKEWD
Driver Skew |t
PHLD
– t
PLHD
|
R
L
= 3kΩ, C
L
= 50pF (Figure 1)
40
ns
t
PZHD
, t
PZLD
Driver Output Enable Time
DE = ↑ , R
L
= 3kΩ, C
L
= 50pF (Figure 2)
l
0.6
2
µs
t
PHZD
, t
PLZD
Driver Output Disable Time
DE = ↓ , R
L
= 3kΩ, C
L
= 50pF (Figure 2)
l
0.3
2
µs
Receiver
t
t
PHLR
, t
PLHR
Receiver Propagation Delay
C
L
= 150pF (Figure 3)
l
0.2
0.4
µs
t
SKEWR
Receiver Skew |t
PHLR
– t
PLHR
|
C
L
= 150pF (Figure 3)
40
ns
t
RR
, t
FR
Receiver Rise or Fall Time
C
L
= 150pF (Figure 3)
l
60
200
ns
Auxiliary Channel
t
t
PHLL
, t
PLHL
Propagation Delay
C
L
= 15pF, t
R
and t
F
< 4ns (Figure 4)
l
60
100
ns
t
RL
, t
FL
Rise or Fall Time
C
L
= 150pF (Figure 4)
l
60
200
ns
Power Supply
Power-Up Time
ON = ↑ to V
CC2(MIN)
l
0.2
2
ms
isolaTion characTerisTics
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. LTM2882-3 V
CC
= 3.3V, LTM2882-5 V
CC
= 5.0V, V
L
= V
CC
, and GND =
GND2 = 0V, ON = V
L
unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
ISO
Rated Dielectric Insulation Voltage
1 Minute, Derived from 1 Second Test
2500
V
RMS
1 Second (Note 5)
±4400
V
Common Mode Transient Immunity
V
L
= ON = 3.3V, V
CM
= 1kV, ∆t = 33ns (Note 2)
30
kV/µs
V
IORM
Maximum Working Insulation Voltage
(Notes 2, 5)
560
400
V
PEAK
V
RMS
Partial Discharge
V
PR
= 1050 V
PEAK
(Notes 2, 5)
5
pC
Input to Output Resistance
(Notes 2, 5)
10
9
Ω
Input to Output Capacitance
(Notes 2, 5)
6
pF
Creepage Distance
(Notes 2, 5)
9.48
mm
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Guaranteed by design and not subject to production test.
Note 3: Maximum Data Rate is guaranteed by other measured parameters
Note 2: Guaranteed by design and not subject to production test.
Note 3: Maximum Data Rate is guaranteed by other measured parameters
and is not tested directly.
Note 4: This device includes over-temperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above specified maximum operating junction
temperature may result in device degradation or failure.
Note 5: Tests performed from GND to GND2, all pins shorted each side of
Note 5: Tests performed from GND to GND2, all pins shorted each side of
isolation barrier.