LTC3215EDD 查看數據表（PDF） - Linear Technology
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LTC3215EDD Datasheet PDF : 14 Pages
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LTC3215
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, CIN = C1 = C2 = 2.2µF, CCPO = 4.7µF.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CPO Short Circuit Detection
Threshold Voltage
EN = High
● 0.5
1.5
V
Test Current
EN
EN = Low, VCPO = 0V
● 10
30
mA
High Level Input Voltage (VIH)
Low Level Input Voltage (VIL)
Input Current (IIH)
Input Current (IIL)
ISET
VISET
IISET
ISET = 50µA
● 1.4
●
● –1
● –1
V
0.4
V
1
µA
1
µA
● 1.195 1.22 1.245
V
●
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 (TA = 25°C unless otherwise specified)
ILED Dropout Voltage
vs LED Current
0.8
VIN = 3.6V
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
200
400
600
800
LED CURRENT (mA)
3216 G01
ILED Pin Current
vs ILED Pin Voltage
600
500
400
300
200
100
ILED = 500mA
400mA
300mA
200mA
100mA
0
0
0.2
0.4
0.6
0.8
1.0
ILED PIN VOLTAGE (V)
3216 G02
ILED vs RSET
1000
800
600
400
200
0
0 5 10 15 20 25 30 35 40
RSET (kΩ)
1573 G03
3215fc
3
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