LTC1348 Ver la hoja de datos (PDF) - Linear Technology
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LTC1348 Datasheet PDF : 8 Pages
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LTC1348
TYPICAL PERFORMANCE CHARACTERISTICS
Driver Output Voltage High/Low
vs Load Capacitance (CL)
7
6
5 250kbps
4
3
120kbps
64kbps
OUTPUT HIGH
20kbps
2
1
VCC = 3.3V
0.1µF FLYING CAPACITORS
0 ALL DRIVERS LOADED 3kΩ + CL
–1 1 DRIVER DRIVEN
–2
–3
OUTPUT LOW
–4
64kbps 20kbps
–5 250kbps
120kbps
–6
–7
0 1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
LTC1348 G01
Driver Output Voltage High/Low
vs Temperature (°C)
7
6
5
VCC = 3.3V
VCC = 3V
4
OUTPUT HIGH
3
2
1 ALL DRIVERS
0 LOADED WITH 3kΩ
–1
–2
–3
–4
OUTPUT LOW
–5
VCC = 3.3V
VCC = 3V
–6
–7
0 10 20 30 40 50 60 70
TEMPERATURE (°C)
LTC1348 G04
Driver Output Voltage High/Low
vs Load Capacitance (CL)
7
6
5
120kbps
64kbps
4
OUTPUT HIGH
20kbps
3
2
1 VCC = 3.3V
0
0.1µF FLYING CAPACITORS
ALL DRIVERS DRIVEN AND
–1
–2
LOADED 3kΩ + CL
–3
–4
OUTPUT LOW
–5
120kbps
64kbps
–6
–7
0
1000
2000
20kbps
3000 4000 5000
LOAD CAPACITANCE (pF)
LTC1348 G02
Driver Short-Circuit Current
vs Temperature (°C)
20
VCC = 3.3V
18
16
ISC–
14
12
ISC+
10
8
6
4
0
–40 –20
0 20 40 60 80 100
TEMPERATURE (°C)
LTC1348 G05
With VCC = 3.3V
All Driver Outputs Loaded with
3kΩ, 1000pF. 1 Driven at 250kbps
DRIVEN DRIVER
OUTPUT
Supply Current
vs Driver Data Rate
50
3 OUTPUT LOADED
3kΩ // 2500pF
40
30
1 OUTPUT LOADED
20
3kΩ // 2500pF
10
VCC = 3.3V
0
0
50 100 150 200 250
DRIVER DATA RATE
LTC1348 G03
Driver Leakage in SHUTDOWN
vs Temperature (°C)
45
VCC = 3.3V
40
35
30
25
20
VOUT = –20V
15
10
5
VOUT = 20V
0
0 10 20 30 40 50 60 70
TEMPERATURE (°C)
LTC1348 G06
DRIVER
INPUT
LTC1348 G07
4
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