
LT1431
4
1431fe
Typical perForMance characTerisTics
VREF and IREF vs Temperature
ILIMIT vs Temperature with
External Resistor
COLLECTOR VSAT vs
Temperature vs Current
Propagation Delay vs Overdrive
Voltage Gain and Phase
vs Frequency
Transconductance and Phase
vs Frequency (REF to COLL)
2.5V Reference IK vs VKA
VREF and IREF vs V+
VKA (V)
0
I K
(A)
600
800
1000
4.0
LT1431 TPC01
400
200
0
1.0
2.0
3.0
5.0
IMIN
500
700
900
300
100
0.5
4.5
1.5
2.5
3.5
V+ (V)
2.5
V REF
(V)
2.501
2.503
2.505
3.3
LT1431 TPC02
2.499
2.497
2.495
2.7
2.9
3.1
3.5
IREF
(A)
1.5
2.5
3.5
0.5
–0.5
–1.5
VREF
IREF
2.500
2.502
2.504
2.498
2.496
3.2
2.6
2.8
3.0
3.4
1.0
2.0
3.0
0
–1.0
V+ (V)
0
V REF
(V)
2.501
2.503
2.505
32
LT1431 TPC03
2.499
2.497
2.495
8
16
24
40
IREF
(A)
1.5
2.5
3.5
0.5
–0.5
–1.5
VREF
IREF
2.500
2.502
2.504
2.498
2.496
28
4
12
20
36
1.0
2.0
3.0
0
–1.0
TEMPERATURE (°C)
–50
V REF
(V)
2.4975
2.5000
2.5025
25
75
LT1431 TPC04
2.4950
2.4925
–25
0
50
100
125
2.4900
2.4875
0.33
0.66
1.00
0
–0.33
–0.66
–1.00
IREF
(A)
VREF
IREF
TEMPERATURE (°C)
–50
I LIMIT
(NORMALIZED)
1.000
1.125
1.250
25
75
LT1431 TPC05
0.875
0.750
–25
0
50
100
125
0.625
0.500
ILIMIT =
0.7
RLIM + 3.6
AT 25°C
TEMPERATURE (°C)
–50
V SAT
(V)
0.80
1.00
1.20
25
75
LT1431 TPC06
0.60
0.40
–25
0
50
100
125
0.20
0
ICOLL = 100mA
ICOLL = 20mA
ICOLL = 10mA
ICOLL = 50mA
OVERDRIVE (mV)
0
PROPAGATION
DELAY
(s)
90
120
150
200
LT1431 TPC07
60
30
0
50
100
150
250
75
105
135
45
15
3
1
1k
OUTPUT
5
6
5V
LT1431
VREF ± OVERDRIVE
OUTPUT HIGH-TO-LOW
OUTPUT LOW-TO-HIGH
FREQUENCY (Hz)
20
REF-TO-COLL
1k
LOAD
A
V(dB)
40
80
120
140
100
10k
100k
10M
LT1431 TPC08
0
1k
1M
100
60
–20
–90
–45
45
135
180
–135
90
0
–180
PHASE
(DEG)
PHASE
AV
FREQUENCY (Hz)
1010
100
10k
100k
10M
LT1431 TPC09
1k
1M
–90
–45
45
135
180
–135
90
0
–180
PHASE
(DEG)
109
108
107
106
105
104
103
102
REF-TO-COLL
g
m
(
)
PHASE
gm