LTC3216 datasheet(2/12 Pages) LINER

2 / 12 page

LTC3216

3216fa

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

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

ORDER PART

NUMBER

TJMAX = 125°C, θJA = 43°C/W

LTC3216EDE

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

ELECTRICAL CHARACTERISTICS The q 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

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

DFN PART

MARKING

3216

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Power Supply

VIN Operating Voltage

2.9

4.4

IVIN Operating Current

ICPO = 0mA, 1x Mode

300

µA

ICPO = 0mA, 1.5x

ICPO = 0mA, 2x Mode

9.2

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

EN1 = HIGH, EN2 = LOW

150

(LED Warmup Time)

EN1 = LOW or HIGH, EN2 = HIGH

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

Ω

1.5x Mode Output Impedance

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

1.5

Ω

2x Mode Output Impedance

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

1.7

Ω

CLK Frequency

0.6

0.9

1.2

MHz

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

LTC3216 Datasheet(PDF) 2 Page - Linear Technology

LTC3216 Datasheet(HTML) 2 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL