LT3593 Просмотр технического описания (PDF) - Linear Technology
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LT3593 Datasheet PDF : 16 Pages
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LT3593
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise specified.
Switch Saturation Voltage
(VCESAT)
600
500
100°C
400
25°C
300
–50°C
200
100
0
0 100 200 300 400 500 600
SWITCH CURRENT (mA)
3593 G01
LED Pin Voltage Drop
(VCAP – VLED)
300
VIN = 3.6V
VCAP = 16V
250
100°C
200
25°C
150
100
–50°C
50
0
0
5
10
15
20
LED CURRENT (mA)
3593 G04
Shutdown Current (VCTRL = 0V)
6
5
100°C
4
25°C
–50°C
3
2
1
0
2
3
4
5
6
VIN (V)
3593 G02
LED Pin Current Limit
46
45
VIN = 3.6V
VCAP = 16V
Quiescent Current (VCTRL = 3.6V)
3.50
3.25
100°C
3.00
25°C
2.75
–50°C
2.50
2.25
2.00
2
3
4
5
6
VIN (V)
3593 G03
Switching Current Limit vs
Temperature
750
VIN = 3.6V
700
44
650
43
600
42
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
3593 G05
550
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
3593 G06
Switching Waveform
IL
200mA/DIV
VCAP
200mV/DIV
AC COUPLED
VSW
20V/DIV
VIN = 3.6V
FRONT PAGE
1μs/DIV
APPLICATION CIRCUIT
3393 G07
Transient Response
VCTRL
5V/DIV
IL
200mA/DIV
VCAP
10V/DIV
VIN = 3.6V
FRONT PAGE
200μs/DIV
APPLICATION CIRCUIT
3393 G08
3593f
4
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