MP3367

– 6-CHANNEL BOOST WLED DRIVER WITH HIGH DIM RATIO AND I2C

MP3367 Rev. 1.0

www.MonolithicPower.com

7

6/17/2019

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© 2019 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 12V, VEN = 2V, TA = 25°C, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

Operating input voltage

VIN

3.5

36

V

Supply current (quiescent)

IQ

No switching

5

mA

Supply current (shutdown)

IST

VEN = 0V, VIN = 12V

1

μA

Input UVLO threshold

VIN_UVLO

Rising edge

3.1

V

Input UVLO hysteresis

100

mV

LDO output voltage

VCC

VEN = 2V, 6V < VIN < 24V,

0 < IVCC < 10mA

5

V

EN on threshold

VEN_ON

VEN rising

1.2

V

EN off threshold

VEN_OFF

VEN falling

0.4

V

EN pull-down resistance

REN

1

MΩ

Step-Up Converter

Low-side MOSFET on

resistance

RDS_LS

VIN = 12V

100

m

Ω

SW leakage current

ISW_LK

VSW = 45V

1

μA

Switching frequency

fSW

RFREQ = 10k

Ω

1.98

2.2

2.42

MHz

RFREQ = 40k

Ω

495

550

605

kHz

FSW1:0 = 01, FREQ float

340

400

460

kHz

FREQ voltage

VFREQ

0.57

0.6

0.63

V

FSP pull-up current

IFSP

18

μA

Maximum duty cycle

DMAX

fSW = 1MHz

90

%

Cycle-by-cycle current limit

ISW_LIMIT TJ = 25°C, duty = 90%

2.6

A

Current limit protection

ICL

To trigger current limit

protection

7.5

A

SYNC input low threshold

VSYNC_LO VSYNC falling

0.4

V

SYNC input high threshold

VSYNC_HI VSYNC rising

1.2

V

PSE active threshold

VPSE

Phase shift enabled

0.75

0.9

1.0

V

COMP trans-conductance

GCOMP

ΔICOMP ≤ 10μA

100

μA/V

COMP source current limit

ICOMP_SO

90

μA

COMP sink current limit

ICOMP_SI

30

μA

Current Dimming

DIM input low threshold

VDIM_LO

VDIM falling

0.4

V

DIM input high threshold

VDIM_HI

VDIM rising

1.2

V

MIX/AD input low threshold

VMIX_LO

Mix dimming threshold

0.3

V

MIX/AD input middle

threshold

VMIX_MID PWM dimming threshold

0.5

0.8

V

MIX/AD input high threshold

VMIX_HI

Analog dimming threshold

1.0

1.3

V