LTC3215 Linear Technology, LTC3215 Datasheet - Page 3

• Manufacturer Part Number: LTC3215
• Description: 700mA Low Noise High Current LED Charge Pump
• Manufacturer: Linear Technology

temperature range, otherwise specifications are at T
PARAMETER
I
V
I
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Based on long-term current density limitations. Assumes an
operating duty cycle of ≤ 10% under absolute maximum conditions for
durations less than 10 seconds. Max current for continuous operation is
350mA.
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
SET
ISET
ISET
0.31
0.29
0.27
0.25
0.23
0.21
0.19
0.17
0.15
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–40
0
I
vs LED Current
1x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
LED
I
V
CPO
IN
= 3.6V
Dropout Voltage
= 200mA
–15
V
IN
200
= 3.6V
LED CURRENT (mA)
TEMPERATURE (°C)
10
400
V
IN
35
= 3.3V
600
V
IN
W
60
= 3.9V
3216 G01
3216 G07
800
U
85
600
500
400
300
200
100
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
–40
A
0
1.5x Mode Charge Pump
Open-Loop Output Resistance
(1.5V
I
vs I
LED
V
V
C
C
= 25°C. V
IN
CPO
IN
CPO
CONDITIONS
I
SET
LED
= 3V
= C1 = C2 = 2.2µF
Pin Current
= 4.2V
= 4.7µF
0.2
IN
–15
The
= 50µA
Pin Voltage
– V
I
LED
TEMPERATURE (°C)
●
IN
CPO
denotes the specifications which apply over the full operating
0.4
PIN VOLTAGE (V)
= 3.6V, C
10
)/I
CPO
Note 3: The LTC3215E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C ambient
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
0.6
35
vs Temperature
IN
I
LED
= C1 = C2 = 2.2µF, C
0.8
= 500mA
60
400mA
300mA
200mA
100mA
3216 G02
3216 G05
(T
A
1.0
85
= 25°C unless otherwise specified)
1000
800
600
400
200
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
●
●
0
CPO
0
–40
0
2x Mode Charge Pump
Open-Loop Output Resistance
(2V
I
LED
V
V
C
C
1.195
IN
CPO
IN
CPO
= 4.7µF.
MIN
IN
5
= 3V
= C1 = C2 = 2.2µF
vs R
= 4.8V
= 4.7µF
– V
–15
10
CPO
SET
TEMPERATURE (°C)
1.22
TYP
15
)/I
10
R
CPO
SET
LTC3215
20
(kΩ)
vs Temperature
35
1.245
25
MAX
225
30
60
35
UNITS
3216 G06
1573 G06
3
3215f
µA
85
40
V