Техническая Спецификация для Linear Technology LTM2881-5 RS485 µModule Isolator Demo Board (5.0V Supply) DC1503A-B DC1503A-B
Модели
DC1503A-B
LTM2881
5
2881ff
For more information
isolaTion characTerisTics
T
A
= 25°C, LTM2881-3 V
CC
= 3.3V, LTM2881-5 V
CC
= 5.0V, V
L
= 3.3V 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
DC
Common Mode Transient Immunity
LTM2881-3 V
CC
= 3.3V, LTM2881-5 V
CC
= 5V,
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
(Note 2)
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 µModule transceiver includes overtemperature 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: Device considered a 2-terminal device. Pin group A1 through B8
Note 5: Device considered a 2-terminal device. Pin group A1 through B8
shorted together and pin group K1 through L8 shorted together.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
t
RD
t
FD
Driver Rise or Fall Time
R
DIFF
= 54Ω, C
L
= 100pF
(Figure 4)
l
0.9
1.5
µs
t
ZLD
, t
ZHD
,
t
LZD
, t
HZD
Driver Output Enable or Disable
Time
R
L
= 500Ω, C
L
= 50pF
(Figure 5)
l
400
ns
Receiver
t
t
PLHR
t
PHLR
Receiver Input to Output
C
L
= 15pF, V
CM
= 2.5V, |V
AB
| = 1.4V,
t
R
and t
F
< 4ns, (Figure 6)
l
100
140
ns
t
SKEWR
Differential Receiver Skew
|t
PLHR
- t
PHLR
|
C
L
= 15pF
(Figure 6)
l
1
8
ns
t
RR
t
FR
Receiver Output Rise or Fall Time C
L
= 15pF
(Figure 6)
l
3
12.5
ns
t
ZLR
, t
ZHR
,
t
LZR
, t
HZR
Receiver Output Enable Time
R
L
=1kΩ, C
L
= 15pF
(Figure 7)
l
50
ns
t
RTEN
, t
RTZ
Termination Enable or Disable
Time
RE = 0V, DE = 0V, V
AB
= 2V, V
B
= 0V (Figure 8)
l
100
µs
Generic Logic Input
t
t
PLHL1
t
PHLL1
D
IN
to D
OUT
Input to Output
C
L
= 15pF,
t
R
and t
F
< 4ns
l
60
100
ns
Power Supply Generator
V
CC2
–GND2 Supply Start-Up
Time
(0V to 4.5V)
ON V
L
, No Load
l
325
800
µs
swiTching characTerisTics
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. LTM2881-3 V
CC
= 3.3V, LTM2881-5 V
CC
= 5.0V, V
L
= 3.3V, GND = GND2 =
0V, ON = V
L
unless otherwise noted.