DC1746A-A Linear Technology, DC1746A-A Datasheet - Page 3

• Manufacturer Part Number: DC1746A-A
• Description: EVALUATION KIT LOW EMI LTM2881-3
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC1746A-A

• Main Purpose: Interface, Transceiver RS-422/RS-485
• Embedded: No
• Utilized Ic / Part: LTM2881
• Primary Attributes: 3V Supply, Isolated, Transceiver + Power
• Kit Contents: Board, Datasheet
• Tool / Board Applications: Interface-Backplane, PCI, PCI Express, RS-XXX, Digital & Opto Isolator
• Mcu Supported Families: LTM2881
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Secondary Attributes: -

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
0V, ON = V
SYMBOL
Power Supply
V
V
I
I
V
V
I
Driver
|V
Δ|V
V
Δ|V
I
I
Receiver
R
R
I
V
ΔV
CCPOFF
CCS
CC2S
OZD
OSD
IN
CC
L
CC2
CC2NOLOAD
OC
TH
IN
TE
OD
TH
OD
OC
|
|
|
L
PARAMETER
V
V
V
V
Regulated V
Loaded
Regulated V
No Load
Efficiency
V
Differential Driver Output Voltage R = ∞ (Figure 1)
Difference in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
Driver Common Mode Output
Voltage
Difference in Magnitude of Driver
Common Mode Output Voltage
for Complementary Output States
Driver Three-State (High
Impedance) Output Current on
Y and Z
Maximum Driver Short-Circuit
Current
Receiver Input Resistance
Receiver Termination Resistance
Enabled
Receiver Input Current (A, B)
Receiver Differential Input
Threshold Voltage (A-B)
Receiver Input Failsafe Hysteresis B = 0V
Receiver Input Failsafe Threshold B = 0V
unless otherwise noted.
CC
L
CC
CC
CC2
Supply Voltage
Supply Voltage
Supply Current in Off Mode
Supply Current in On Mode
Short-Circuit Current
CC2
CC2
Output Voltage,
Output Voltage,
CONDITIONS
LTM2881-3
LTM2881-5
ON = 0V
LTM2881-3 DE = 0V, RE = V
LTM2881-5 DE = 0V, RE = V
LTM2881-5, H-Grade
LTM2881-3 DE = 0V, RE = V
LTM2881-5 DE = 0V, RE = V
LTM2881-3, H-Grade, I
DE = 0V, RE = V
I
DE = 0V, RE = V
R = 27Ω (RS485) (Figure 1)
R = 50Ω (RS422) (Figure 1)
R = 27Ω or R = 50Ω (Figure 1)
R = 27Ω or R = 50Ω (Figure 1), H-Grade
R = 27Ω or R = 50Ω (Figure 1)
R = 27Ω or R = 50Ω (Figure 1)
R = 27Ω or R = 50Ω (Figure 1), H-Grade
DE = 0V, (Y or Z) = –7V, +12V
– 7V ≤ (Y or Z) ≤ 12V (Figure 2)
RE = 0V or V
RE = 0V or V
TE = V
ON = 0V V
ON = 0V V
ON = 0V V
ON = 0V V
–7V ≤ B ≤ 12V
CC2
= 100mA, LTM2881-5 (Note 2)
L
, V
AB
CC2
CC2
CC2
CC2
A
= 25°C. LTM2881-3 V
L
L
= 2V, V
, V
, V
= 0V or 5V, V
= 0V or 5V, V
= 0V or 5V, V
= 0V or 5V, V
L
L
IN
IN
, No Load
, V
The
= –7V, –3V, 3V, 7V, 12V (Figure 3)
= –7V, –3V, 3V, 7V, 12V (Figure 3), H-Grade
CC2
B
= – 7V, 0V, 10V (Figure 8)
l
LOAD
= 0V
denotes the specifications which apply over the full operating
IN
IN
IN
IN
L
L
L
L
= 90mA
, No Load
, No Load
, I
, I
= 12V (Figure 3)
= 12V (Figure 3), H-Grade
= –7V (Figure 3)
= –7V (Figure 3), H-Grade
LOAD
LOAD
= 100mA
= 150mA
CC
= 3.3V, LTM2881-5 V
CC
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
= 5.0V, V
– 250
–100
–145
–0.2
–0.2
MIN
1.62
4.75
4.75
4.75
108
3.0
4.5
4.8
1.5
96
48
2
L
= 3.3V, GND = GND2 =
LTM2881
–0.05
TYP
125
125
120
3.3
5.0
5.0
5.0
5.0
20
15
62
25
0
MAX
5.35
V
V
V
250
±50
±50
±10
250
156
125
250
3.6
5.5
5.5
0.2
0.2
0.2
10
25
19
20
CC2
CC2
CC2
3
0
UNITS
2881fb
3
mA
mA
mA
mA
mA
mA
mV
kΩ
μA
μA
μA
μA
%
Ω
V
V
V
V
V
V
V
V
V
V
V
V
V
V