LTC3216 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC3216
Linear Technology
'LTC3216' PDF : 12 Pages View PDF
LTC3216
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
2x Mode Output Impedance
CLK Frequency
CPO Short-Circuit Detection
Threshold Voltage
Test Current
EN1, EN2
High Level Input Voltage (VIH)
Low Level Input Voltage (VIL)
Input Current (IIH)
Input Current (IIL)
ISET1, ISET2
VISET1, VISET2
IISET1, IISET2
VIN = 3.2V, VCPO < 5.1V, C1 = C2 = 2.2μF
EN1/EN2 = High
EN1 = EN2 = Low, VCPO = 0V
ISETX = 50μA
1.7
Ω
● 0.6
0.9
1.2
MHz
● 0.5
● 10
1.5
V
30
mA
● 1.4
●
● –1
● –1
V
0.4
V
1
μA
1
μA
● 1.195 1.22
1.245
V
●
321
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
500mA.
Note 3: The LTC3216E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C 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 1000
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
1200
1000
800
600
400
200
0
0 5 10 15 20 25 30 35 40
RSET (kΩ)
1573 G03
3216fc
3
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