LTC1384CSW 查看數據表（PDF） - Linear Technology
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LTC1384CSW Datasheet PDF : 8 Pages
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LTC1384
DC ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range. VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, VON/OFF = VCC, RX EN = 0V, unless otherwise noted.
PARAMETER
Output Short-Circuit Current
Output Leakage Current
Power Supply Generator
V+ Output Voltage
V– Output Voltage
Supply Rise Time
Power Supply
VCC Supply Current
Supply Leakage Current (VCC)
Digital Input Threshold Low
Digital Input Threshold High
CONDITIONS
Sinking Current, VOUT = VCC
Sourcing Current, VOUT = 0V
EN = VCC, 0V ≤ VOUT ≤ VCC
IOUT = 0mA
IOUT = 8mA
IOUT = 0mA
IOUT = – 8mA
Shutdown to Turn-On
No Load (Note 2), 0°C to 70°C
No Load (Note 2), –40°C to 85°C
Shutdown (Note 3)
MIN TYP MAX
– 15 – 40
10
20
●
1
10
8.0
7.5
– 8.0
– 7.0
0.2
●
0.22
0.5
●
0.35
1.0
●
35
50
●
1.4
0.8
● 2.0
1.4
UNITS
mA
mA
µA
V
V
V
V
ms
mA
mA
µA
V
V
AC CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range.
VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF,unless otherwise noted.
PARAMETER
CONDITIONS
Slew Rate
Driver Propagation Delay
(TTL to RS232)
Receiver Propagation Delay
(RS232 to TTL)
RL = 3k, CL = 51pF
RL = 3k, CL = 2500pF
tHLD (Figure 1)
tLHD (Figure 1)
tHLR (Figure 2)
tLHR (Figure 2)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Supply current is measured with driver and receiver outputs
unloaded.
MIN TYP MAX
8
30
3
5
●
2
3.5
●
2
3.5
●
0.3
0.8
●
0.3
0.8
UNITS
V/µs
V/µs
µs
µs
µs
µs
Note 3: Measurements made in the Shutdown mode are performed
with VON/OFF = 0V.
TYPICAL PERFOR A CE CHARACTERISTICS
Driver Output Voltage
vs Temperature
10
RL = 3k
8
6
4
OUTPUT HIGH
VCC = 5V
VCC = 4.5V
2
0
–2
–4
–6
–8
0
OUTPUT LOW
VCC = 4.5V
VCC = 5V
10 20 30 40 50 60 70
TEMPERATURE (°C)
Receiver Input Thresholds
vs Temperature
2.2
2.0
VTH
1.8
1.6
VTL
1.4
1.2
1.0
0 10 20 30 40 50 60 70
TEMPERATURE (˚C)
Supply Current vs Data Rate
45
VCC = 5V
40 RL = 3k
CL = 2500pF
35 2 DRIVERS ACTIVE
30
25
20
15
10
5
0
0 25 50 75 100 125 150 175
DATA RATE (kBAUD)
1384fa
3
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