MPQ3364

– 4-CH BOOST WLED DRIVER WITH HIGH DIM RATIO AND I2C, AEC-Q100

MPQ3364 Rev. 1.1

MonolithicPower.com

7

7/7/2021

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© 2021 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 12V, VEN = 2V, TJ = -40°C to

+125°C, typical value is at TJ = 25°C, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

Operating input voltage

VIN

3.5

36

V

Quiescent supply current

IQ

No switching

5

mA

Shutdown supply current

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,

0mA < 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

M

Ω

Step-Up Converter

Low-side MOSFET on

resistance

RDS(ON)_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 floating

340

400

460

kHz

FREQ voltage

VFREQ

0.57

0.6

0.63

V

ADR pull-up current

IADR

18

μA

Maximum duty cycle

DMAX

fSW = 1MHz

90

%

Cycle-by-cycle current

limiting

ISW_LIMIT

TJ = +25°C and -40°C,

Duty = 90%

5.5

7

A

TJ = 125°C, duty = 90%

4.5

5.5

A

Current limit protection

ICL

To trigger current limit protection

12

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

∆ICOMP ≤ 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