LT3595EUHH-TRPBF Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LT3595EUHH-TRPBF Datasheet PDF : 16 Pages
| |||
LT3595
TYPICAL PERFORMANCE CHARACTERISTICS
Switching Waveforms
10 LEDS
VSW1
50V/DIV
10 LEDS
IL1
50mA/DIV
5 LEDS
VSW2
50V/DIV
5 LEDS
IL2
50mA/DIV
VIN = 45V
ILED = 20mA
400ns/DIV
PWM Dimming Waveforms
(1000:1)
PWM Dimming Waveforms
(10:1)
PWM
5V/DIV
PWM
5V/DIV
IL
20mA/DIV
IL
20mA/DIV
3595 G01
ILED
20mA/DIV
2μs/DIV
3595 G02
VIN = 40V
PWM FREQUENCY = 100Hz
10 LEDS AT 20mA TON = 10μs
ILED
20mA/DIV
2ms/DIV
3595 G03
VIN = 40V
PWM FREQUENCY = 100Hz
10 LEDS AT 20mA TON = 1ms
LED Current vs PWM Duty Cycle
Wide Dimming Range (5000:1)
100
VIN = 45V
10 LEDS AT 20mA
10 PWM FREQUENCY = 100Hz
1
0.1
0.01
0.001
0.01
0.1
1
10
DUTY CYCLE (%)
100
3595 G04
LED Current vs RSET Resistance
60
50
40
30
20
10
0
25
50
75 100 125 150
RSET RESISTANCE (kΩ)
3595 G05
VIN Quiescent Current
2.0
T = 125°C
1.6
T = 25°C
T = – 40°C
1.2
0.8
0.4
0
0
10
20
30
40
50
VIN (V)
3595 G06
4
VCC Quiescent Current
20
VCC = 3.3V
18
T = 125°C
T = 25°C
16
T = –40°C
14
12
10
8
6
4
2
0
01 2 34 5 6 7
VCC (V)
3595 F07
⎯S⎯H⎯D⎯N Pin Bias Current
100
80
T = 25°C
60
T = 125°C
T = –40°C
40
20
0
01
2
3
4
VSHDN (V)
56
3595 F08
3595f
Share Link: 