MAX8650(2006) Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX8650
(Rev.:2006)
(Rev.:2006)
Maxim Integrated
MAX8650 Datasheet PDF : 25 Pages
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4.5V to 28V Input Current-Mode Step-Down
Controller with Adjustable Frequency
Typical Operating Characteristics (continued)
(Circuit of Figure 3, 500kHz switching, VIN = 17V, VOUT = 3.3V, TA = +25°C, unless otherwise noted.)
POWER-UP WAVEFORMS
MAX8650 toc09
POWER-DOWN WAVEFORMS
MAX8650 toc10
ENABLE/SHUTDOWN WAVEFORMS
MAX8650 toc11
VPOK
5V/div VPOK
VIN
5V/div VPOK
5V/div
5V/div
1V/div
5V/div VEN
5V/div
VIN
VOUT
0V
VOUT
5A/div
IL
VOUT
2V/div
1V/div
IL
0V
0V
IL
5A/div
0V
10A/div
0V
2ms/div
200µs/div
2ms/div
SYNCHRONIZATION WAVEFORMS
MAX8650 toc12
VFSYNC
VSYNCO
5V/div
VOUT
5V/div
IL
SHORT CIRCUIT AND RECOVERY
MAX8650 toc13
2V/div VOUT
0V
10A/div VDH
VDH
10V/div IIN
0V
10A/div VDL
0V
1µs/div
200µs/div
OVERVOLTAGE PROTECTION
MAX8650 toc14
7.5A LOAD
1V/div
40µs/div
0V
10V/div
0V
5V/div
0V
CLOSED-LOOP BODE PLOT WITH NO LOAD
MAX8650 toc15
GAIN
CLOSED-LOOP BODE PLOT WITH 15A LOAD
MAX8650 toc16
GAIN
PHASE
0dB
10dB/div
0°
30°/div
PHASE
0dB
10dB/div
0°
30°/div
1k
10k
100k
1M
FREQUENCY (Hz)
1k
10k
100k
1M
FREQUENCY (Hz)
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