LT3494 Просмотр технического описания (PDF) - Linear Technology
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LT3494 Datasheet PDF : 12 Pages
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LT3494/LT3494A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted.
LT3494A Switching Waveforms at
No Load
VOUT
10mV/DIV
AC
COUPLED
FIGURE 6 CIRCUIT
LT3494A Switching Waveforms at
5mA Load
LT3494A Switching Waveforms at
30mA Load
VOUT
10mV/DIV
AC
COUPLED
FIGURE 6 CIRCUIT
VOUT
10mV/DIV
AC
COUPLED
FIGURE 6 CIRCUIT
SW
VOLTAGE
10V/DIV
INDUCTOR
CURRENT
50mA/DIV
VCC = 3.6V
VOUT = 16V
5ms/DIV
SW
VOLTAGE
10V/DIV
3494 G13
INDUCTOR
CURRENT
100mA/DIV
VCC = 3.6V
VOUT = 16V
2ms/DIV
SW
VOLTAGE
10V/DIV
INDUCTOR
CURRENT
200mA/DIV
3494 G14
VCC = 3.6V
VOUT = 16V
500ns/DIV
3494 G15
LT3494 Start-Up Waveforms
FIGURE 5 CIRCUIT
CAP
VOLTAGE
5V/DIV
VOUT
VOLTAGE
5V/DIV
INDUCTOR
CURRENT
100mA/DIV
LT3494 Transient Response
FIGURE 5 CIRCUIT
10mA→15mA→10mA LOAD PULSE
VOUT
VOLTAGE
50mV/DIV
AC COUPLED
INDUCTOR
CURRENT
100mA/DIV
LT3494A Transient Response
VOUT
50mV/DIV
AC
COUPLED
FIGURE 6 CIRCUIT
15mA→30mA→15mA LOAD PULSE
INDUCTOR
CURRENT
200mA/DIV
VCC = 3.6V
VOUT = 16V
200μs/DIV
3494 G16
VCC = 3.6V
VOUT = 16V
100μs/DIV
3494 G17
VCC = 3.6V
VOUT = 16V
100μs/DIV
3494 G18
3494fb
5
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