TLV431, TLV431A, TLV431B
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
SLVS139R − JULY 1996 − REVISED SEPTEMBER 2005
PARAMETER MEASUREMENT INFORMATION
†
RATIO OF DELTA REFERENCE VOLTAGE
TO DELTA CATHODE VOLTAGE
vs
JUNCTION TEMPERATURE
(for TLV431 and TLV431A)
0
∆
V ref/
∆
V KA − Ratio of Delta Reference Voltage
to Delta Cathode Voltage − mV/V
∆
V ref/
∆
V KA − Ratio of Delta Reference Voltage
to Delta Cathode Voltage − mV/V
−0.1
−0.2
−0.3
−0.4
−0.5
−0.6
−0.7
−0.8
−50
IK = 10 mA
∆V
KA = VREF to 6 V
−25
0
25
50
75
100
125
150
−0.0
0
−0.1
−0.2
−0.3
−0.4
−0.5
−0.6
−0.7
−0.8
−0.9
−1
−1.0
−50
−25
0
25
50
75
100
125
150
IK = 10 mA
∆V
KA = VREF to 6 V
RATIO OF DELTA REFERENCE VOLTAGE
TO DELTA CATHODE VOLTAGE
vs
JUNCTION TEMPERATURE
(for TLV431B)
TJ − Junction Temperature −
°C
TJ − Junction Temperature −
°C
Figure 9A
Figure 9
PERCENTAGE CHANGE IN V
REF
vs
OPERATING LIFE AT 55°C
Figure 9B
0.025
IK = 1 mA
V ref
Percentage Change in Vref − %
0
−0.025
% Change (avg)
% Change (3δ)
−0.05
−0.075
−0.1
% Change (−3δ)
−0.125
0
10
20
30
40
50
60
Operating Life at 55°C − kh‡
‡ Extrapolated from life-test data taken at 125°C; the activation energy assumed is 0.7 eV.
Figure 10
† Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
12
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
