Datasheet

I – Shutdown Quiescent Current – A
sd
m
En = 0 V
T = - 40 C
j
°
T = 25 C
j
°
T = 125 C
j
°
I – Hysterisis Current – A
h
µ
T – Junction Temperature – C
J
°
40
50
60
70
80
–50 –25 0 25 50 75 100 125
VIN = 12 V
EN = 1.3 V
V – Voltage Reference – V
ref
T – Junction Temperature – C
J
°
0.795
0.797
0.799
0.801
0.803
–50 –25 0 25 50 75 100 125
0.805
T – Junction Temperature – C
J
°
470
475
480
485
490
–50 –25 0 25 50 75 100 125
495
500
RT = 100 kΩ
F – Oscillator Frequency – kHz
SW
R – On Resistance – m
DS(on)
Ω
T – Junction Temperature – C
J
°
VIN = 12 V
40
50
60
70
80
–50 –25 0 25 50 75 100 125
R – On Resistance – m
DS(on)
Ω
T – Junction Temperature – C
J
°
35
45
55
65
75
–50 –25 0 25 50 75 100 125
VIN = 12 V
TPS54521
SLVS981C –JUNE 2010–REVISED AUGUST 2013 www.ti.com
TYPICAL CHARACTERISTICS
CHARACTERISTIC CURVES
HIGH-SIDE Rdson vs TEMPERATURE LOW-SIDE Rdson vs TEMPERATURE
Figure 1. Figure 2.
VOLTAGE REFERENCE vs TEMPERATURE OSCILLATOR FREQUENCY vs TEMPERATURE
Figure 3. Figure 4.
SHUTDOWN QUIESCENT CURRENT vs
INPUT VOLTAGE EN PIN HYSTERESIS CURRENT vs TEMPERATURE
Figure 5. Figure 6.
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