DRV591 Datasheet, PDF (8/16 Pages) Texas Instruments – 3-A HIGH-EFFICIENCY PWM POWER DRIVER

DRV591
SLOS389A – NOVEMBER 2001– REVISED MAY 2002
TYPICAL CHARACTERISTICS
www.ti.com
DRAIN-SOURCE ON-STATE RESISTANCE
vs
FREE-AIR TEMPERATURE
300
VDD = 3.3 V
IO = 1 A
250 ^{VFP Package}
Total
200
150
Low Side
100
High Side
50
0
–40
–15
10
35
60
85
TA – Free-Air Temperature – °C
Figure 6
POWER SUPPLY REJECTION RATIO
vs
FREQUENCY
–20
VDD = 5 V
–30
fS = 500 kHz
RL = 1 Ω
Vripple = 100 mVpp
–40
–50
–60
–70
–80
10
100
1k
10k
f – Frequency – Hz
Figure 8
100k
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
10
No Load
9
8
7
6
5
4
3
2
1
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
VDD – Supply Voltage – V
Figure 7
POWER SUPPLY REJECTION RATIO
vs
FREQUENCY
–20
VDD = 3.3 V
–30
fS = 500 kHz
RL = 1 Ω
Vripple = 100 mVpp
–40
–50
–60
–70
–80
10
100
1k
10k
f – Frequency – Hz
Figure 9
100k
8