LTC2846 Linear Technology, LTC2846 Datasheet - Page 5

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

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ELECTRICAL CHARACTERISTICS
SYMBOL
V.28 Receiver
V
V
R
t
t
t
Boost Switching Regulator (Note 4)
V
V
I
I
f
DC
I
V
I
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
are negative. All voltages are referenced to device ground unless otherwise
specified.
TYPICAL PERFOR A CE CHARACTERISTICS
temperature range, otherwise specifications are at T
PLH
PHL
FB
Q
LIM
LEAK
r
THL
TLH
IN
IN
FB
SAT
V
, t
V
4
160
150
130
120
110
TH
FB(LR)
MAX
170
140
100
f
90
10
V.11 Mode I
T
A
= 25 C
PARAMETER
Input Low Threshold Voltage
Input High Threshold Voltage
Receiver Input Hysteresis
Receiver Input Impedance
Rise or Fall Time
Input to Output
Input to Output
Operating Voltage
Feedback Voltage
FB Pin Bias Current
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch V
Switch Leakage Current
100
DATA RATE (kBd)
CC
CESAT
vs Data Rate
1000
W
2846 G04
10000
U
150
145
125
120
140
135
130
10
V.35 Mode I
A
T
A
= 25 C. V
CONDITIONS
(Figure 12)
(Figure 12)
(Figure 12)
– 15V V
C
C
C
V
V
V
3V V
(Note 5)
I
V
= 25 C
SW
L
L
L
FB
SHDN
SHDN
SW
= 50pF (Figures 12, 16)
= 50pF (Figures 12, 16)
= 50pF (Figures 12, 16)
The
= 1.255V
= 900mA
= 5V
IN
= 2.4V, Not Switching
= 0V, V
100
DATA RATE (kBd)
CC
A
CC
3.6V
denotes specifications which apply over the full operating
= 5V, V
15V
vs Data Rate
IN
Note 3: All typicals are given for V
C
Note 4: The Boost Regulator is specified for V
noted.
Note 5: Current limit guaranteed by design and/or correlation to static test.
= 3V
VDD
1000
IN
= 1 F, C
= 3.3V, V
VEE
2846 G05
10000
= 3.3 F and T
SHDN
= V
IN
, unless otherwise noted. (Notes 2, 3)
60
50
30
55
45
40
35
A
10
= 25 C.
V.28 Mode I
CC
T
1.230
0.85
MIN
A
82
2
0
3
3
1
= 25 C
= 5V, V
20
IN
1.255
DATA RATE (kBd)
0.05
0.01
0.01
0.01
IN
TYP
160
120
350
3.3
4.2
1.2
1.2
= 3.3V, C
15
60
90
CC
5
= 3V unless otherwise
vs Data Rate
LTC2846
VCC
1.280
40
MAX
0.05
300
300
360
0.8
0.3
3.6
1.6
7
6
1
2
1
= C
60
VIN
sn2846 2846fs
= 10 F,
2846 G06
80 100
UNITS
5
MHz
%/V
mA
mV
k
nA
ns
ns
ns
%
V
V
V
V
V
A
A
A