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DRV593 Datasheet, PDF (7/22 Pages) Texas Instruments – 3−A HIGH−EFFICIENCY PWM POWER DRIVER
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DRV593
DRV594
SLOS401A - SEPTEMBER 2002 REVISED - OCTOBER 2002
TYPICAL CHARACTERISTICS
100
90
80
70
60
50
40
30
20
10
0
1
EFFICIENCY
vs
LOAD RESISTANCE
PO = 2 W
PO = 1 W
PO = 0.5 W
VDD = 5 V
fS = 500 kHz
2 3 4 5 6 7 8 9 10
RL - Load Resistance - Ω
Figure 2
100
90
80
70
60
50
40
30
20
10
0
1
EFFICIENCY
vs
LOAD RESISTANCE
PO = 0.5 W
PO = 0.25 W
PO = 1 W
VDD = 3.3 V
fS = 500 kHz
2 3 4 5 6 7 8 9 10
RL - Load Resistance - Ω
Figure 3
DRAIN-SOURCE ON-STATE RESISTANCE
vs
SUPPLY VOLTAGE
300
IO = 1 A
TA = 25°C
250
DRAIN-SOURCE ON-STATE RESISTANCE
vs
FREE-AIR TEMPERATURE
300
VDD = 5 V
IO = 1 A
250 VFP Package
200
Total
150
100
Low Side
High Side
50
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
VDD - Supply Voltage - V
Figure 4
200
Total
150
100
Low Side
High Side
50
0
- 40
- 15
10
35
60
85
TA - Free-Air Temperature - °C
Figure 5
7
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