MP3367

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

MP3367 Rev. 1.0

www.MonolithicPower.com

8

6/17/2019

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2019 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS (continued)

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

Parameter

Symbol Condition

Min

Typ

Max

Units

MIX/AD pull-up current

IMIX

MIX/AD pull-up current

18

μA

Mix dimming transfer point

MIXTP bit = 0

25

%

Transfer point hysteresis

0.5

%

Mix dimming output dimming

frequency

fMIX

MIXFR bit = 0

200

Hz

LED Current Regulator

LEDX regulation voltage

VHD

ILED = 20mA

350

mV

ILED = 100mA

850

1000

mV

Current matching (5)

ILED = 20mA

-2.5

2.5

%

ILED = 100mA

-2.5

2.5

%

ISET voltage

VISET

1.2

V

LED current

ILED

RISET = 24.9k

Ω

48.75

50

51.25

mA

ILED = 1/50 * 50mA = 1mA

0.9

1.05

1.2

mA

Phase-shift degree

LED1 to 6 enable

60

°

LED1 to 4 enable

90

°

Protection

Over-voltage protection threshold

VOVP

1.9

2

2.1

V

OVP hysteresis

200

mV

OVP UVLO threshold

VOVP_UV Step-up converter fails

100

mV

LEDX over-voltage threshold

VLEDX_OV LEDS bits = 01

5

V

LEDX over-voltage fault timer

7.7

ms

LEDX UVLO threshold

VLEDX_UV

100

mV

Thermal shutdown threshold (6)

TST

Rising edge

170

°C

Hysteresis

20

°C

SD pull-down current

ISD

60

μA

SD voltage (respective to VIN)

VSD-IN

VIN = 12V, VIN - VSD

6

V

STH pull-up current

ISTH

STH pull-up current

18

μA

I2C Interface

Input logic low

VIL

0.4

V

Input logic high

VIH

1.2

V

Output logic low

VOL

ILOAD = 3mA

0.4

V

SCL clock frequency

fSCL

400

kHz

SCL high time

tHIGH

0.6

μs

SCL low time

tLOW

1.3

μs

Data set-up time

tSU,DAT

100

ns

Data hold time

tHD,DAT

0

0.9

μs

Set-up time for repeated start

tSU,STA

0.6

μs