lt3498eddb-trpbf Linear Technology Corporation, lt3498eddb-trpbf Datasheet - Page 5

• Manufacturer Part Number: lt3498eddb-trpbf
• Description: 20ma Led Driver And Oled Driver With Integrated Schottky In 3mm X 2mm Dfn
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
18
16
14
12
10
2.0
2.6
2.5
2.4
2.3
2.2
2.1
1.9
1.8
80
70
60
50
40
30
20
10
8
4
6
2
0
0
– 50
– 50
0
LED Switching Frequency
vs Temperature
V
(V
OLED Minimum
Switching Frequency
OUT2
OUT2
– 25
– 25
vs V
= 16V)
500
CTRL2 VOLTAGE (V)
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
CTRL2
25
25
1000
50
50
75
75
1500
100
100
3498 G13
3498 G16
3498 G10
2000
125
125
1200
1000
300
250
800
600
400
200
200
150
100
50
–3
–6
0
0
6
3
0
–50 –25
0.1
0
OLED Switch Saturation
Voltage (V
V
(V
OLED Switching Frequency
vs Load Current
OUT2
OUT2
50
vs Temperature
T = 25 C
= 16V)
SWITCH CURRENT (mA)
LOAD CURRENT (mA)
0
TEMPERATURE ( C)
100
CESAT2
1
25
T = 125 C
150
)
50
200
10
75
T = –50 C
250
100
T
3498 G11
3498 G14
3498 G17
A
= 25°C, unless otherwise specifi ed.
125
100
300
–0.5
–1.0
–2.0
–1.5
200
400
350
300
250
150
100
600
550
500
450
400
350
300
250
200
2.0
1.5
1.0
0.5
50
0
0
– 50
0
0
OLED Schottky Forward
Voltage Drop
V
Peak Inductor Current
OUT2
– 25
200
SCHOTTKY FORWARD DROP (mV)
10
Load Regulation
0
LOAD CURRENT (mA)
TEMPERATURE ( C)
400
T = 25 C
20
25
600
T = 125 C
50
30
LT3498
800
75
T = –50 C
1000
40
100
3498 G12
3498 G15
3498 G18
5
3498f
1200
125
50