LTC3212 Linear Technology, LTC3212 Datasheet - Page 4

• Manufacturer Part Number: LTC3212
• Description: RGB LED Driver and Charge Pump
• Manufacturer: Linear Technology

LTC3212
Typical perForMance characTerisTics

892
890
880
888
886
884
882
6.5
5.0
3.0
6.0
5.5
4.5
4.0
3.5
–40
2.7
Oscillator Frequency
vs V
1x Mode Charge Pump
Resistance vs Temperature
I
CPO
3.1
–20
IN
= 50mA
Voltage
3.5
TEMPERATURE (°C)
0
3.9
V
20
IN
V
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
(V)
IN
4.3
V
0
IN
2.7
= 3.6V
2x Mode V
vs V
40
= 3V
V
4.7
IN
3.1
IN
= 4.2V
60
Voltage
5.1
3.5
3212 G04
3212 G07
IN
80
5.5
Current
3.9
V
IN
(V)
4.3
35
33
31
29
27
25
23
21
19
17
15
6
5
1
0
4
3
2
4.7
2.7
2.7
V
vs V
2x Mode CPO Open-Loop Output
Resistance
IN
C1, C2, C3 = 1µF
V
CPO
5.1
Shutdown Current
IN
3.1
3212 G10
= 4.8V
Voltage
3.0
5.5
3.5
3.9
V
V
IN
IN
3.3
(V)
(V)
4.3
1V/DIV
2V/DIV
LEDEN
–40°C
85°C
25°C
CPO
4.7
3.6
V
0V
0V
IN
SOFT-START
= 3.6V
5.1
Start-Up and Mode Switch
3212 G08
3212 G05
5.5
4.0
200µs/DIV
350
340
300
290
330
320
310
5.2
5.0
4.8
4.6
4.4
4.2
4.0
MODE
2.7
0
2x Mode CPO Voltage
vs CPO Current
1x Mode No-Load V
vs V
1x
C1, C2, C3 = 1µF
10
3.6V
3.6V
3.1
IN
20
DROPOUT
DELAY
5V
Voltage
MODE
25
3.5
2x
3212 G11
CPO CURRENT (mA)
30
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3.4V
35
3.9
V
IN
3.5V
40
(V)
3.3V
4.3
45
IN
V
50
Current
IN
4.7
= 3.0V
55
3.1V
3.2V
60
5.1
3212 G06
3212 G09
3.6V
65 70
3212fb
5.5