lt3592emse-trpbf Linear Technology Corporation, lt3592emse-trpbf Datasheet - Page 4

• Manufacturer Part Number: lt3592emse-trpbf
• Description: 500ma Wide Input Voltage Range Step-down Led Driver With 10 1 Dimming
• Manufacturer: Linear Technology Corporation

LT3592
TYPICAL PERFORMANCE CHARACTERISTICS
4
100
100
95
90
85
80
75
70
65
60
55
50
12
11
10
95
90
85
80
75
70
65
60
55
50
45
40
9
8
7
6
5
4
3
2
4
2
Effi ciency (2 Red LEDS,
L = 10μH, 900kHz)
4
Effi ciency (2 Red LEDs,
L = 4.7μH, 2.2MHz)
Minimum V
Current vs V
f = 400kHz (LED Loads)
4
8
8
6
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
12
12
IN
OUT
for 500mA Output
8
, L = 22μH,
16
16
BRIGHT (500mA)
10
BRIGHT (500mA)
20
20
12
24
24
14
3592 G04
3592 G07
3592 G01
28
16
28
500
450
400
350
300
250
200
150
100
100
50
12
11
10
95
90
85
80
75
70
65
60
55
50
45
40
0
9
8
7
6
5
4
3
2
0
2
Effi ciency (1 Red LED,
L = 6.8μH, 900kHz)
4
Minimum V
Current vs V
f = 400kHz (LED Loads)
Switch Voltage Drop
vs Switch Current
100 200 300 400 500
8
4
SWITCH CURRENT (mA)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
12
IN
OUT
6
for 500mA Output
, L = 22μH,
16
BRIGHT (500mA)
8
20
600
10
24
700
3592 G05
3592 G08
3592 G02
(T
A
800
12
28
= 25°C, unless otherwise noted)
100
400
375
350
325
300
275
250
95
90
85
80
75
70
65
60
55
50
12
11
10
9
8
7
6
5
4
3
2
–50
4
2
Effi ciency (2 Red LEDs,
L = 22μH, 400kHz)
Minimum V
Current vs V
f = 900kHz (LED Loads)
Switch Voltage Drop at 500mA
vs Temperature
8
4
0
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
12
IN
OUT
6
for 500mA Output
, L = 6.8μH,
16
50
BRIGHT (500mA)
8
20
100
10
24
3592 G03
3592 G06
3592 G09
3592f
150
28
12