LTC3230 datasheet(2/16 Pages) LINER

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LTC3230

3230fa

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN, CPO....................................................... –0.3V to 6V

ENM, ENS, ENLDO1, ENLDO2,

V1, V2, LDO1, LDO2 ......................–0.3V to (VIN + 0.3V)

ICPO (Note 2)........................................................200mA

LD01, LD02 (Note 3)............................................200mA

MLED1-4, SLED, RSET.................................. –0.3V to 6V

Operating Ambient Temperature Range

(Note 4).................................................... –40°C to 85°C

Junction Temperature ........................................... 125°C

Storage Temperature Range................... –65°C to 150°C

(Notes 1-5)

20 19 18 17 16

TOP VIEW

UD PACKAGE

20-LEAD (3mm

× 3mm) PLASTIC QFN

CPO

ENLDO1

ENLDO2

RSET

ENS

LDO1

LDO2

ENM

TJMAX = 125°C, θJA = 68°C/W

EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN Operating Voltage

●

2.7

5.5

IVIN Operating Current

ICPO = 0, 1x Mode

ICPO = 0, 1.5x Mode

ICPO = 0, 2x Mode

0.48

1.2

1.6

VIN Shutdown Current

ENM = ENS = ENLD02 = ENLD01 = Low

●

μA

MLED1, MLED2, MLED3, MLED4 and SLED Currents

LED Current Ratio (ILED/IRSET)

555

A/A

LED Dropout Voltage

Mode Switch Threshold, IMLED = 15mA

100

LED Current Matching

Any Two MLED Outputs, IMLED = Full Scale

0.5

MLED/SLED Current, 5-Bit Linear DAC

1 ENM/ENS Strobe (FS)

31 ENM/ENS Strobes (FS/31)

25.5

0.860

Unused LED Detection

Threshold Voltage

VCPO – MLED

●

200

780

Test Current

LED Tied to CPO

●

178

μA

The

● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 3.6V, C1 = C2 = C4 = C5 = C6 = 1μF, RSET = 17.4k, ENM = ENS =

high, ENLDO1 = ENLDO2 = low, unless otherwise noted.

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3230EUD#PBF

LTC3230EUD#TRPBF

LCYB

20-Lead (3mm

× 3mm) Plastic QFN

–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/

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