DRV593_15 Datasheet, PDF (8/27 Pages) Texas Instruments – 3−A HIGH−EFFICIENCY PWM POWER DRIVER

DRV593
DRV594
SLOS401C – OCTOBER 2002 – REVISED JULY 2010
POWER SUPPLY REJECTION RATIO
vs
FREQUENCY
−20
V_DD = 5 V
−30
f_S = 500 kHz
R_L = 1 Ω
V_ripple = 100 mV_pp
−40
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POWER SUPPLY REJECTION RATIO
vs
FREQUENCY
−20
V_DD = 3.3 V
−30
f_S = 500 kHz
R_L = 1 Ω
V_ripple = 100 mV_pp
−40
−50
−50
−60
−60
−70
−70
−80
10
100
1k
10k
f − Frequency − Hz
Figure 8.
100k
DRV593
CLOSED LOOP RESPONSE
4
10
Phase
3
Gain
2
1
V_DD = 5 V
No Load
0
10
100
1k
10k
f − Frequency − Hz
Figure 10.
0
−10
−20
−30
−40
−50
−60
−70
−80
100k
−80
10
100
1k
10k
f − Frequency − Hz
Figure 9.
100k
DRV594
CLOSED LOOP RESPONSE
16
10
Gain
14
0
12
−10
Phase
10
−20
8
−30
6
−40
4
2
V_DD = 5 V
No Load
0
10
100
1k
10 k
f − Frequency − Hz
Figure 11.
−50
−60
−70
100 k
8
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