ltc3210-1 Linear Technology Corporation, ltc3210-1 Datasheet - Page 4

• Manufacturer Part Number: ltc3210-1
• Description: Main/cam Led Controller With 64-step Brightness Control In 3mm X 3mm Qfn
• Manufacturer: Linear Technology Corporation

LTC3210-1
TYPICAL PERFOR A CE CHARACTERISTICS
4
20mV/DIV
COUPLED
1V/DIV
2V/DIV
CPO
V
EN
CPO
4.8
4.6
4.4
4.2
4.0
3.8
3.6
AC
Dropout Time from Shutdown
1.5x Mode CPO Voltage
vs Load Current
2x CPO Ripple
0
V
RESET
V
C2 = C3 = C4 = 2.2μF
MODE
V
I
C
BAT
BAT
CPO
BAT
CPO
5.1V
= 3.2V
= 3.1V
= 200mA
= 3.6V
100
= 2.2μF
V
LOAD CURRENT (mA)
BAT
200
= 3V
500μs/DIV
500ns/DIV
V
1X
BAT
= 3.3V
300
V
BAT
1.5X
W
= 3.4V
V
V
BAT
400
BAT
2X
= 3.5V
= 3.6V
32101 G01
32101 G04
U
32101 G07
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
1x Mode Switch Resistance
vs Temperature
2x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(2V
ENM = HIGH
I
V
V
C2 = C3 = C4 = 2.2μF
CPO
RESET
MODE
BAT
CPO
V
BAT
BAT
5.1V
= 200mA
= 3V
= 4.8V
–15
–15
= 3.3V
– V
V
BAT
TEMPERATURE (°C)
CPO
TEMPERATURE (˚C)
= 3.9V
10
250μs/DIV
10
)/I
1X
CPO
35
35
1.5X
V
BAT
60
60
= 3.6V
T
32101 G02
32101 G08
A
2X
32101 G05
= 25°C unless otherwise stated.
85
85
50mV/DIV
COUPLED
V
CPO
AC
3.8
3.6
3.4
3.2
3.0
2.6
2.4
2.8
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
4.3
4.2
–40
1.5x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(1.5V
1.5x CPO Ripple
2x Mode CPO Voltage
vs Load Current
0
V
V
C2 = C3 = C4 = 2.2μF
C2 = C3 = C4 = 2.2μF
V
I
C
BAT
CPO
CPO
BAT
CPO
= 3V
= 4.2V
BAT
= 200mA
= 3.6V
= 2.2μF
–15
100
– V
LOAD CURRENT (mA)
TEMPERATURE (˚C)
CPO
200
10
500ns/DIV
V
BAT
V
)/I
BAT
V
V
BAT
V
= 3.5V
BAT
CPO
BAT
= 3.4V
300
= 3.3V
35
= 3.1V
= 3.2V
V
BAT
V
= 3V
400
60
BAT
32101fb
32101 G03
= 3.6V
32101 G09
32101 G06
500
85