LTC2846 Linear Technology, LTC2846 Datasheet - Page 2

• Manufacturer Part Number: LTC2846
• Description: 3.3V Software-Selectable Multiprotocol Transceiver with Termination
• Manufacturer: Linear Technology

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LTC2846
ABSOLUTE AXI U RATI GS
(Note 1)
V
V
Input Voltage
Output Voltage
Short-Circuit Duration
SW Voltage ............................................... – 0.4V to 36V
FB Voltage ............................................... – 0.3V to 2.5V
Current into FB Pin .............................................. 1mA
SHDN Voltage ........................................... – 0.3V to 10V
Operating Temperature Range
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
ELECTRICAL CHARACTERISTICS
SYMBOL
Supplies
I
P
V
temperature range, otherwise specifications are at T
2
CC
D
+
CC
IN
4
Transmitters ........................... – 0.3V to (V
Receivers ............................................... – 18V to 18V
Logic Pins .............................. – 0.3V to (V
Transmitters ................. (V
Receivers ................................. – 0.3V to (V
V
V
Transmitter Output ..................................... Indefinite
Receiver Output .......................................... Indefinite
V
LTC2846C ............................................... 0 C to 70 C
LTC2846I ........................................... – 40 C to 85 C
Voltage .............................................. – 0.3V to 6.5V
EE
DD
EE
Voltage.............................................. – 0.3V to 6.5V
........................................................ – 10V to 0.3V
.................................................................. 30 sec
....................................................... – 0.3V to 10V
PARAMETER
V
All Digital Pins = GND or V
Internal Power Dissipation (DCE Mode)
Positive Charge Pump Output Voltage
CC
Supply Current (DCE Mode,
W
W W
IN
EE
)
– 0.3V) to (V
CONDITIONS
RS530, RS530-A, X.21 Modes, No Load
RS530, RS530-A, X.21 Modes, Full Load
V.35 Mode
V.28 Mode, No Load
V.28 Mode, Full Load
No-Cable Mode
RS530, RS530-A, X.21 Modes, Full Load
V.35 Mode, Full Load
V.28 Mode, Full Load
V.11 or V.28 Mode, No Load
V.35 Mode
V.28 Mode, with Load
V.28 Mode, with Load, I
U
A
DD
CC
CC
IN
= 25 C. V
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
The
CC
denotes specifications which apply over the full operating
= 5V, V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DD
PGND
SHDN
*
V
C1
C1
V
JA
V
V
= 10mA
M0
M1
M2
NC
D1
D2
D3
R1
R2
R3
DD
CC
IN
IN
IN
–
+
SOLDERED TO A CIRCUIT BOARD IS TYPICALLY 60 C/W
= 3.3V, V
10
11
12
13
14
15
16
17
18
T
1
2
3
4
5
6
7
8
9
JMAX
= 125 C,
36-LEAD PLASTIC SSOP
SHDN
CHARGE PUMP
REGULATOR
G PACKAGE
SWITCHING
TOP VIEW
BOOST
JA
D1
D2
D3
= V
R2
R3
= 90 C/W,
R1
IN
, unless otherwise noted. (Notes 2, 3)
T
T
JC
T
T
T
MIN
= 35 C/W
8
7
8
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
U
SW
FB
SGND
C2
C2
V
GND
D1 A
D1 B
D2 A
D2 B
D3/R1 A
D3/R1 B
R2 A
R2 B
R3 A
R3 B
DCE/DTE
EE
+
–
TYP
100
126
300
550
775
200
9.3
8.0
8.7
6.5
14
20
35
W
ORDER PART
LTC2846CG
LTC2846IG
MAX
130
170
900
NUMBER
75
sn2846 2846fs
UNITS
U
mW
mW
mW
mA
mA
mA
mA
mA
A
V
V
V
V