SA12 Datasheet, PDF (3/5 Pages) Cirrus Logic – PULSE WIDTH MODULATION AMPLIFIERS

Product Innova tionFrom
SA12
POWER DERATING
125
100
75
50
25
EACH ACTIVE
OUTPUT RESISTOR
0
0 25 50 75 100 125
CASE TEMPERATURE, (°C)
REVERSE DIODE
15
12
9
6
3
0
0.6 0.8
1.0 1.2 1.4
SOURCE TO DRAIN DIODE VOLTAGE
CONTINUOUS OUTPUT
16
14
12
10
8
25 50
75 100 125
CASE TEMPERATURE, (°C)
Vcc QUIESCENT CURRENT
115
Vcc = 15V
110 F = 22.5 kHz
105
NORMAL
100
OPERATION
95
90
SHUTDOWN
85
OPERATION
80
–50 –25 0 25 50 75 100 125
CASE TEMPERATURE, (° C)
CLOCK LOADING
100
99
98
97
96
F NOMINAL = 400kHz
95
10K
100K
1M
CLOCK LOAD RESISTANCE, (Ω)
NORMALIZED ON RESISTANCE
2.5
2
1.5
1
.5
–50
0
50 100 150
JUNCTION TEMPERATURE, T_J (°C)
DUTY CYCLE VS ANALOG INPUT
100
B OUT
80
CLOCK FREQUENCY OVER TEMP
102.0
101.5
101.0
100.5
100.0
99.5
99.0
98.5
98.0–50 _{–25 0 25 50 75 100 125}
CASE TEMPERATURE, (°C)
TOTAL VOLTAGE DROP
12
60°C
10
85°C
8
100°C
6
125°C
4
2
25°C
–55°C
–25°C
0
0
3
6 9 12 15
OUTPUT CURRENT, (A)
Vcc QUIESCENT CURRENT
100
90
60
40
20
A OUT
0
3
4
5
6
7
ANALOG INPUT, (V)
Vs QUIESCENT VS VOLTAGE
140
120
100
80
60
40
20
0 25 50 75 100 125 150 175 200
Vs, (V)
80
70
60
40 80
120 160 200
SWITCHING FREQUENCY, F (kHz)
Vs QUIESCENT VS FREQUENCY
100
80
60
40
20
40
80 120 160 200
SWITCHING FREQUENCY, F (kHz)
SA12U
3