ltc3210-2 Linear Technology Corporation, ltc3210-2 Datasheet - Page 4

• Manufacturer Part Number: ltc3210-2
• Description: Main/cam Led Controllers With 32-step Brightness Control In 3mm ? 3mm Qfn
• Manufacturer: Linear Technology Corporation

LTC3210-2/LTC3210-3
1V/DIV
2V/DIV
TYPICAL PERFORMANCE CHARACTERISTICS
4
20mV/DIV
COUPLED
CPO
EN
4.8
4.6
4.4
4.2
4.0
3.8
3.6
V
CPO
AC
Dropout Time from Shutdown
0
1.5x Mode CPO Voltage
vs Load Current
RESET
MODE
C2 = C3 = C4 = 2.2μF
V
V
2x CPO Ripple
BAT
BAT
V
I
C
5.1V
CPO
BAT
CPO
= 3.2V
= 3.1V
100
= 200mA
= 3.6V
= 2.2μF
V
LOAD CURRENT (mA)
BAT
200
= 3V
500μs/DIV
500ns/DIV
V
1X
BAT
= 3.3V
300
V
1.5X
BAT
= 3.4V
V
V
BAT
BAT
400
2X
321023 G01
= 3.5V
= 3.6V
321023 G07
321023 G04
500
1V/DIV
2V/DIV
CPO
ENC
0.70
0.65
0.60
0.55
0.50
0.45
0.40
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
–40
–40
Dropout Time When Enabled
2x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(2V
1x Mode Switch Resistance
vs Temperature
ENM = HIGH
V
V
C2 = C3 = C4 = 2.2μF
RESET
I
MODE
CPO
BAT
CPO
V
BAT
5.1V
BAT
= 3V
= 200mA
= 4.8V
–15
–15
= 3.3V
– V
V
TEMPERATURE (°C)
BAT
TEMPERATURE (°C)
CPO
250μs/DIV
10
= 3.9V
10
)/I
1X
CPO
35
35
V
1.5X
BAT
= 3.6V
60
60
321023 G02
T
321023 G08
321023 G05
A
2X
= 25°C unless otherwise stated.
85
85
50mV/DIV
COUPLED
V
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
4.3
4.2
3.8
3.6
3.4
3.2
3.0
2.6
2.4
2.8
CPO
AC
–40
0
2x Mode CPO Voltage
vs Load Current
1.5x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(1.5V
C2 = C3 = C4 = 2.2μF
V
V
C2 = C3 = C4 = 2.2μF
1.5x CPO Ripple
BAT
CPO
V
I
C
CPO
BAT
CPO
= 3V
= 4.2V
BAT
100
–15
= 200mA
= 3.6V
= 2.2μF
– V
LOAD CURRENT (mA)
TEMPERATURE (°C)
CPO
200
V
10
BAT
V
500ns/DIV
BAT
V
)/I
V
BAT
V
= 3.5V
BAT
BAT
CPO
= 3.4V
= 3.3V
300
= 3.1V
35
= 3.2V
V
BAT
V
= 3V
400
BAT
60
= 3.6V
321023 G09
321023fa
321023 G06
321023 G03
500
85