TLV431, TLV431A, TLV431B
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
SLVS139R − JULY 1996 − REVISED SEPTEMBER 2005
PARAMETER MEASUREMENT INFORMATION
†
CATHODE CURRENT
vs
CATHODE VOLTAGE
15
VKA = VREF
TA = 25°C
10
150
I K − Cathode Current − mA
I K − Cathode Current −
µ
A
5
100
50
0
−50
−100
−150
−200
−15
−1
−0.5
0
0.5
1
VKA − Cathode Voltage − V
1.5
−250
−1
250
200
CATHODE CURRENT
vs
CATHODE VOLTAGE
VKA = VREF
TA = 25°C
0
−5
−10
−0.5
0
0.5
1
VKA − Cathode Voltage − V
1.5
Figure 6
OFF-STATE CATHODE CURRENT
vs
JUNCTION TEMPERATURE
(for TLV431 and TLV431A)
40
I K(off) − Off-State Cathode Current − nA
I K(off) − Off-State Cathode Current − nA
VKA = 5 V
VREF = 0
30
3000
VKA = 6 V
VREF = 0
Figure 7
OFF-STATE CATHODE CURRENT
vs
JUNCTION TEMPERATURE
(for TLV431B)
2500
2000
20
1500
1000
10
500
0
−50
−25
0
25
50
75
100
125
150
0
−50
−25
0
25
50
75
100
125
150
TJ − Junction Temperature −
°C
TJ − Junction Temperature −
°C
Figure 8A
Figure 8
Figure 8B
† Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
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•
DALLAS, TEXAS 75265
11
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