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LTC3215
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications ar e at T A = 25°C. V IN = 3.6V, C IN = C1 = C2 = 2.2μF, C CPO = 4.7μF.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CPO Short Circuit Detection
Threshold Voltage
Test Current
EN = High
EN = Low, V CPO = 0V
●
●
0.5
10
1.5
30
V
mA
EN
High Level Input Voltage (V IH )
Low Level Input Voltage (V IL )
●
●
1.4
0.4
V
V
Input Current (I IH )
Input Current (I IL )
●
●
–1
–1
1
1
μA
μA
I SET
V ISET
I SET = 50μA
●
1.195
1.22
1.245
V
I ISET
●
225
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
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.
Note 3: The LTC3215E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C ambient
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C unless otherwise specified)
0.8
0.7
0.6
0.5
0.4
I LED Dropout Voltage
vs LED Current
V IN = 3.6V
600
500
400
300
I LED Pin Current
vs I LED Pin Voltage
I LED = 500mA
400mA
300mA
1000
800
600
I LED vs R SET
0.3
0.2
0.1
200
100
200mA
100mA
400
200
0
0
200 400 600
LED CURRENT (mA)
800
0
0
0.2
0.4 0.6 0.8
I LED PIN VOLTAGE (V)
1.0
0
0
5
10
15 20 25
R SET (k?)
30
35
40
3216 G01
3216 G02
1573 G03
3215fc
3
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