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LTC2846 Arkusz danych(PDF) 2 Page - Linear Technology

Numer części LTC2846
Szczegółowy opis  3.3V Software-Selectable Multiprotocol Transceiver with Termination
PDF  24 Pages
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Producent  LINER [Linear Technology]
Strona internetowa  http://www.linear.com
Logo LINER - Linear Technology

LTC2846 Arkusz danych(HTML) 2 Page - Linear Technology

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



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