MAX5094A Просмотр технического описания (PDF) - Maxim Integrated
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MAX5094A Datasheet PDF : 22 Pages
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High-Performance, Single-Ended, Current-Mode
PWM Controllers
Typical Operating Characteristics (continued)
(VCC = 15V, TA = +25°C, unless otherwise noted.)
TIMING RESISTANCE
vs. OSCILLATOR FREQUENCY
1000
CT = 1nF
100
CT = 560pF
CT = 220pF
CT = 100pF
10
CT = 10nF
1 CT = 4.7nF
CT = 3.3nF
CT = 2.2nF
0.1
10,000
100,000
1,000,000
FREQUENCY (Hz)
10,000,000
OUT IMPEDANCE vs. TEMPERATURE
(RDS_ON PMOS DRIVER)
5.0
4.8 ISOURCE = 100mA
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OUT IMPEDANCE vs. TEMPERATURE
(RDS_ON NMOS DRIVER)
10
ISINK = 200mA
9
8
7
6
5
4
3
2
1
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
PROPAGATION DELAY FROM CURRENT-LIMIT
COMPARATOR TO OUT vs. TEMPERATURE
100
90
80
70
60
50
40
30
20
10
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
ERROR-AMPLIFIER OPEN-LOOP GAIN
AND PHASE vs. FREQUENCY
MAX5094/95 toc16
140
10
120
-15
100
GAIN
-40
80
-65
60
PHASE
-90
40
-115
20
-140
0
-165
-20
0.01 1
-190
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
COMP VOLTAGE LEVEL TO TURN
OFF DEVICE vs. TEMPERATURE
2.3
VCC = 15V
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
ADV_CLK RISING EDGE TO OUT RISING
EDGE TIME vs. TEMPERATURE
120
MAX5095C
118
116
114
112
110
108
106
104
102
100
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
ADV_CLK AND OUT WAVEFORMS
MAX5094/95 toc19
VCC = 15V
MAX5095C
ADV_CLK
5V/div
LOAD = 4.75kΩ
OUT
10V/div
t = 20ns/div
8 _______________________________________________________________________________________
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