LTC3215 データシートの表示（PDF） - Linear Technology

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LTC3215

700mA Low Noise High Current LED Charge Pump

Linear Technology 

LTC3215

ABSOLUTE MAXIMUM RATINGS

(Note 1)

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

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

EN.................................................... –0.3V to VIN + 0.3V

ICPO, IILED (Note 2)..............................................1000mA

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

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

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

PIN CONFIGURATION

TOP VIEW

C2+ 1

C1+ 2

CPO 3

ILED 4

ISET 5

10 C1–

9 GND

11

8 C2–

7 VIN

6 EN

DD PACKAGE

10-LEAD (3mm × 3mm) PLASTIC DFN

TJMAX = 125°C, θJA = 43°C/W

EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

LTC3215EDD#PBF

LTC3215EDD#TRPBF

LBPX

10-Lead (3mm × 3mm) Plastic DFN

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/

TEMPERATURE RANGE

–40°C to 85°C

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

IVIN Operating Current

IVIN Shutdown Current

LED Current

ICPO = 0mA, 1x Mode

ICPO = 0mA, 1.5x

ICPO = 0mA, 2x Mode

EN = LOW

● 2.9

4.4

V

300

µA

7

mA

9.2

mA

2.5

7

µA

LED Current Ratio (ILED/ISET)

ILED = 200mA to 600mA

● 3139 3270 3400

mA/mA

ILED Dropout Voltage

Mode Switching Delay (LED Warm-Up Time)

Mode Switch Threshold, ILED = 200mA

120

mV

2.5

ms

LED Current On Time

EN to LED Current On

130

µs

Charge Pump (CPO)

1x Mode Output Voltage

ICPO = 0mA

VIN

V

1.5x Mode Output Voltage

2x Mode Output Voltage

1x Mode Output Impedance

ICPO = 0mA

ICPO = 0mA

4.6

V

5.1

V

0.25

Ω

1.5x Mode Output Impedance

2x Mode Output Impedance

VIN = 3.4V, VCPO < 4.6V

VIN = 3.2V, VCPO < 5.1V

1.5

Ω

1.7

Ω

CLK Frequency

● 0.6

0.9

1.2

MHz

3215fc

2

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