LTC3216 datasheet(2/12 Pages) LINER

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LTC3216

3216fc

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN to GND ................................................ –0.3V to 5.5V

CPO to GND .............................................. –0.3V to 5.5V

EN2, EN1...........................................–0.3V to VIN + 0.3V

ICPO, IILED (Note 2).............................................1500mA

CPO Short-Circuit Duration .............................. Indeﬁnite

Operating Temperature Range (Note 3).... –40°C to 85°C

Storage Temperature Range................... –65°C to 125°C

(Note 1)

C1–

GND

C2–

VIN

EN2

EN1

C2+

C1+

CPO

ISET1

ILED

ISET2

TOP VIEW

DE12 PACKAGE

12-LEAD (4mm × 3mm) PLASTIC DFN

EXPOSED PAD IS GND (PIN 13)

MUST BE SOLDERED TO PCB

TJMAX = 125°C, θJA = 43°C/W

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3216EDE#PBF

LTC3216EDE#TRPBF

3216

12-Lead (4mm

× 3mm) Plastic DFN

–40°C to 85°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges.

Consult LTC Marketing for information on non-standard lead based ﬁnish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel speciﬁcations, go to: http://www.linear.com/tapeandreel/

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

Input Power Supply

VIN Operating Voltage

●

2.9

4.4

IVIN Operating Current

ICPO = 0mA, 1x Mode

ICPO = 0mA, 1.5x

ICPO = 0mA, 2x Mode

300

9.2

μA

IVIN Shutdown Current

EN2 = EN1 = LOW

2.5

μA

LED Current

LED Current Ratio (ILED/ISET1/2)ILED = 200mA to 800mA

●

3120

3250

3380

mA/mA

ILED Dropout Voltage

Mode Switch Threshold, ILED = 200mA

120

Mode Switching Delay

(LED Warmup Time)

EN1 = HIGH, EN2 = LOW

EN1 = LOW or HIGH, EN2 = HIGH

150

LED Current On Time

to LED Current On

130

μs

Charge Pump (CPO)

1x Mode Output Voltage

ICPO = 0mA

VIN

1.5x Mode Output Voltage

ICPO = 0mA

4.6

2x Mode Output Voltage

ICPO = 0mA

5.1

1x Mode Output Impedance

0.25

1.5x Mode Output Impedance

VIN = 3.4V, VCPO < 4.6V, C1 = C2 = 2.2μF

1.5

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