SA50CE Datasheet, PDF (3/5 Pages) Cirrus Logic – H-BRIDGE MOTOR DRIVER/AMPLIFERS

Product Innova tionFrom
SA50CE
POWER DERATING
50
45
40
SINGLE FET POWER CAPABILITY
35
30
25
20
15 ^{MAXIMUM INTERNAL}
POWER @ 5A, 80V
10
5
0
-50 -25 0 25 50 75 100 125 150 175
TEMPERATURE, °C
OUTPUT RESISTANCE DRIFT
2.5
2
1.5
1
0.5
0
–60 –20 20 60 100 140 180
JUNCTION TEMPERATURE (°C)
VOLTAGE DROP (V), BOTH FETs
5
4
= ^175°C
3
T ^J _{= 125°C}
T
J
T
=
J
75°C
2
T J ^{= 25°C}
1
0
0
1
2
3
4
5
OUTPUT CURRENT, (A)
INPUT CURRENT VS TEMP
1.05
0.95
0.85
0.75
0.65
0.55
0.45
0.35
0.25
–40 –20 0 20 40 60 80 100 120
CASE TEMPERATURE, (°C)
H-BRIDGE FET CAPACITANCE
500
400
300
200
100
0
12
5 10 20 50 100
DRAIN-TO-SOURCE VOLTAGE, (V)
EFFICIENCY vs. POWER SUPPLY VOLTAGE
100
98
96
I_O = 1A
94
I_O = 2A
92
I_O = 3A
90 _{IO = 4A}
88
86 _{IO = 5A}
90% DUTY CYCLE
L/R > 75µ-sec
84
0 10 20 30 40 50 60 70 80
SUPPLY VOLTAGE, V_S (V)
EFFICIENCY vs. LOAD CURRENT
100
98
96
V
S
=
80V
V
S
=
60V
94
V
S
=
40V
92
V
90
S = _20V
88
90% DUTY CYCLE
96 ^{L/R > 75µ-sec}
1
2
3
4
5
LOAD CURRENT, (A)
SA50CEU
3