LTC3216 datasheet(3/12 Pages) LINER

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LTC3216

3216fc

ELECTRICAL CHARACTERISTICS

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.

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.

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.

ILED Dropout Voltage

vs LED Current

ILED Pin Current

vs ILED Pin Voltage

ILED vs RSET

TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise speciﬁed)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

2x Mode Output Impedance

VIN = 3.2V, VCPO < 5.1V, C1 = C2 = 2.2μF

1.7

CLK Frequency

●

0.6

0.9

1.2

MHz

CPO Short-Circuit Detection

Threshold Voltage

EN1/EN2 = High

●

0.5

1.5

Test Current

EN1 = EN2 = Low, VCPO = 0V

●

EN1, EN2

High Level Input Voltage (VIH)

●

1.4

Low Level Input Voltage (VIL)

●

0.4

Input Current (IIH)

●

–1

μA

Input Current (IIL)

●

–1

μA

ISET1, ISET2

VISET1, VISET2

ISETX = 50μA

●

1.195

1.22

1.245

IISET1, IISET2

●

321

μA

LED CURRENT (mA)

200

400

800

600

1000

3216 G01

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

VIN = 3.6V

ILED PIN VOLTAGE (V)

600

500

400

300

200

100

0.2

0.4

0.6

0.8

3216 G02

1.0

ILED = 500mA

400mA

300mA

200mA

100mA

RSET (kΩ)

1573 G03

1200

1000

800

600

400

200

515

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