TPS40210_0806 Datasheet, PDF (6/46 Pages) Texas Instruments – 4.5-V TO 52-V INPUT CURRENT MODE BOOST CONTROLLER

TPS40210, TPS40211
SLUS772B – MARCH 2008 – REVISED JUNE 2008.......................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
REFERENCE VOLTAGE CHANGE
vs
JUNCTION TEMPERATURE
0.4
52 V
0.2
0.0
-0.2
-0.4
4.5 V
-0.6
12 V
V_VDD
12 V
4.5 V
52 V
-0.8
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_J – Junction Temperature – ° C
Figure 5.
UNDERVOLTAGE LOCKOUT THRESHOLD
vs
JUNCTION TEMPERATURE
4.30
UVLO
Off
4.25
On
4.20
UVLO On
4.15
REFERENCE VOLTAGE CHANGE
vs
INPUT VOLTAGE
0.5
0.4
0.3
0.2
0.1
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
0
10
20
30
40
50
60
V_VDD – Input Voltage – V
Figure 6.
OVERCURRENT THRESHOLD
vs
JUNCTION TEMPERATURE
155
V_VDD
4.5 V
154
4.5 V
7.5 V
153
12 V & 20 V
30 V
7.5 V
152
30 V
151
4.10
4.05
UVLO Off
4.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_J – Junction Temperature – ° C
Figure 7.
150
149
12 V & 20 V
148
147
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_J – Junction Temperature – ° C
Figure 8.
6
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