 English |
|
|
|
|
|
|
|
| LTC3230_15 Datasheet, PDF (5/16 Pages) Linear Technology – 5-LED Main/Sub Display Driver with Dual LDO | |||
| |||
| ◁ |
TYPICAL PERFORMANCE CHARACTERISTICS
1.5x Mode CPO Voltage
vs Load Current
4.8
C1 = C2 = C6 = 1μF
4.6
VIN = 3.3V
VIN = 3.4V
4.4
VIN = 3.5V
VIN = 3.6V
4.2
4.0
VIN = 3.2V
VIN = 3.1V
3.8
VIN = 3V
3.6
0
50
100
150
200
LOAD CURRENT (mA)
3230 G07
MLED/SLED Pin Dropout Voltage
vs MLED/SLED Pin Current
160
VIN = 3.6V
140
120
100
80
60
40
20
0
0
5
10
15
20
25
MLED/SLED PIN CURRENT (mA)
3230 G10
1x Mode No-Load VIN Current vs
VIN Voltage
580
RSET = 17.4k
560
540
520
500
480
460
440
420
400
2.8 3.2 3.6 4 4.4 4.8 5.2
VIN (V)
3230 G13
2x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(2VIN â VCPO)/ICPO
12
VIN = 3V
VCPO = 4.8V
11 C1 = C2 = C6 = 1μF
10
9
8
7
6
â40
â15
10
35
60
85
TEMPERATURE (°C)
3230 G08
Oscillator Frequency
vs VIN Voltage
1000
980
960
940
TA = 85°C
920
900
TA = 25°C
880
860
TA = â40°C
840
820
800
2.7 3.2 3.7 4.2 4.7
VIN (V)
5.2
3230 G11
1.5x Mode Supply Current vs ICPO
(IVIN â 1.5ICPO)
7
VIN = 3.6V
6
5
4
3
2
1
0
0
50
100
150
LOAD CURRENT (mA)
3230 G14
LTC3230
2x Mode CPO Voltage
vs Load Current
5.1
C1 = C2 = C6 = 1μF
5.0
4.9
VIN = 3.6V
4.8
VIN = 3.5V
4.7
VIN = 3.4V
4.6
VIN = 3.3V
VIN = 3.2V
4.5
VIN = 3.1V
4.4
VIN = 3V
4.3
4.2
0
50
100
150
LOAD CURRENT (mA)
200
3230 G09
VIN Shutdown Current
vs VIN Voltage
5.0
4.5
TA = 85°C
4.0
TA = 25°C
3.5
TA = â40°C
3.0
2.5
2.0
1.5
1.0
0.5
0
2.7
3.7
4.7
VIN (V)
3230 G12
2x Mode Supply Current vs ICPO
(IVIN â 2ICPO)
5
VIN = 3.6V
4
3
2
1
0
0
50
100
150
LOAD CURRENT (mA)
3230 G15
3230fa
5
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese