Datasheet

LTC4311
4
4311fa
TYPICAL PERFORMANCE CHARACTERISTICS
Boost Pull-Up Current vs
Temperature
Supply Current vs Temperature
–40
SUPPLY CURRENT (μA)
200
20
4311 G03
170
150
–20 0 40
140
130
210
190
180
160
60 80 100
TEMPERATURE (°C)
V
CC
= 5.5V
V
CC
= 3.3V
V
CC
= 2.5V
V
CC
= 1.8V
BUS1 = BUS2 = 0V
–40
BOOST PULL-UP CURRENT (mA)
35
20
4311 G01
20
10
–20 0 40
5
0
40
30
25
15
60 80 100
TEMPERATURE (°C)
V
CC
= 5.5V
V
CC
= 3.3V
V
CC
= 2.5V
V
CC
= 1.8V
R
P
= 4.7kΩ
C
BUS
= 1nF
TEMPERATURE (°C)
–40
24
26
30
20 60
4311 G05
22
20
–20 0
40 80 100
18
16
28
STANDBY CURRENT (μA)
V
CC
= 3.3V
V
CC
= 5.5V
V
CC
= 1.8V
V
CC
= 2.5V
Standby Current vs Temperature
Boost Pull-Up Current vs Bus
Capacitance
Rise Time vs Capacitance
1
INPUT THRESHOLD (V)
0.55
0.6
0.65
4
6
4311 G06
0.5
0.45
0.4
23 5
0.7
0.75
0.8
SUPPLY VOLTAGE (V)
Bus Input Threshold Voltage vs
Supply Voltage
CAPACITANCE (pF)
0
0
RISE TIME (
ns
)
50
100
150
200
250
300
1000 2000 3000 4000
4311 G04
5000
V
CC
= 1.8V
V
CC
= 3.3V
V
CC
= 2.5V
V
CC
= 5.5V
R
P
= 2kΩ
Measured from 0.3 • V
CC
to 0.7 • V
CC
CAPACITANCE (pF)
0
0
BOOST PULL-UP CURRENT (mA)
10
20
30
40
50
60
1000 2000 3000 4000
4311 G02
5000
V
CC
= 1.8V
V
CC
= 2.5V
V
CC
= 3.3V
V
CC
= 5.5VR
p
= 2kΩ
(T
A
= 25°C, unless otherwise indicated)