![](http://datasheet.mmic.net.cn/Linear-Technology/LTC1544IG-TRPBF_datasheet_101474/LTC1544IG-TRPBF_2.png)
2
LTC1544
ORDER PART
NUMBER
(Note 1)
Supply Voltage, VCC ................................................ 6.5V
Input Voltage
Transmitters ........................... – 0.3V to (VCC + 0.3V)
Receivers ............................................... – 18V to 18V
Logic Pins .............................. – 0.3V to (VCC + 0.3V)
Output Voltage
Transmitters .................. (VEE – 0.3V) to (VDD + 0.3V)
Receivers ................................ – 0.3V to (VCC + 0.3V)
VEE........................................................ – 10V to 0.3V
VDD ....................................................... – 0.3V to 10V
Short-Circuit Duration
Transmitter Output ..................................... Indefinite
Receiver Output .......................................... Indefinite
VEE.................................................................. 30 sec
Operating Temperature Range
LTC1544CG ............................................. 0
°C to 70°C
LTC1544IG ........................................ – 40
°C to 85°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
LTC1544CG
LTC1544IG
TJMAX = 150°C, θJA = 65°C/ W
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
VDD
D1
D2
D3
R1
R2
R3
D4
R4
M0
M1
M2
DCE/DTE
VEE
GND
D1 A
D1 B
D2 A
D2 B
D3/R1 A
D3/R1 B
R2 A
R2 B
R3 A
R3 B
D4/R4 A
INVERT
R1
D2
D1
R2
D3
G PACKAGE
28-LEAD PLASTIC SSOP
R3
D4
R4
Consult factory for Military grade parts.
The q denotes specifications which apply over the full operating tempera-
ture range, otherwise specifications are at TA = 25°C. VCC = 5V, VDD = 8V, VEE = – 7V for V.28, – 5.5V for V.10, V.11 (Notes 2, 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supplies
ICC
VCC Supply Current (DCE Mode,
RS530, RS530-A, X.21 Modes, No Load
2.7
mA
All Digital Pins = GND or VCC)
RS530, RS530-A, X.21 Modes, Full Load
q
95
120
mA
V.28 Mode, No Load
q
12
mA
V.28 Mode, Full Load
q
12
mA
No-Cable Mode
q
10
200
A
IEE
VEE Supply Current (DCE Mode,
RS530, RS530-A, X.21 Modes, No Load
2.1
mA
All Digital Pins = GND or VCC)
RS530, X.21 Modes, Full Load
14
mA
VEE = – 5.6V (RS530, RS530-A Modes) RS530-A, Full Load
25
mA
VEE = – 8.46V (V.28 Mode)
V.28 Mode, No Load
1
mA
V.28 Mode, Full Load
12
mA
No-Cable Mode
10
A
IDD
VDD Supply Current (DCE Mode,
RS530, RS530-A, X.21 Modes, NoLoad
0.2
mA
All Digital Pins = GND or VCC)
RS530, RS530-A, X.21 Modes, Full Load
0.2
mA
VDD = 8.73V
V.28 Mode, No Load
1
mA
V.28 Mode, Full Load
12
mA
No-Cable Mode
10
A
PD
Internal Power Dissipation (DCE Mode,
RS530, RS530-A, X.21 Modes, Full Load
300
mW
(All Digital Pins = GND or VCC)
V.28 Mode, Full Load
54
mW
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
ELECTRICAL CHARACTERISTICS