MPQ7220

– 6-CHANNEL BOOST LED DRIVER WITH MAX 100mA/CHANNEL

MPQ7220 Rev. 1.0

MonolithicPower.com

8

7/30/2019

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© 2019 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS (continued)

VIN = 12V, VEN = 2V, TJ = -40°C to +125°C, typical values at TJ = 25°C, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

Led Current Regulator

LEDX regulation voltage

VHD

ILED = 20mA

300

mV

ILED = 100mA

700

850

1000

mV

Current matching (6)

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, TJ = 25°C

-2.5%

50

+2.5%

mA

RISET = 24.9k

Ω, TJ = -40°C

to +125°C, no over-

temperature LED current

decrement

-4%

50

+4%

mA

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 STH floating or VSTH = 0.5V

4.3

4.7

5.1

V

LEDX over-voltage fault timer

6

7.7

10

ms

LEDX UVLO threshold

VLEDX_UV

100

mV

Thermal shutdown threshold (7)

TST

Rising edge

170

°C

Hysteresis

20

°C

SD pull-down current

ISD

40

55

70

µA

SD voltage (with respect to VIN)

VSD-IN

VIN = 12V, VIN - VSD

6

V

STH pull-up current

ISTH

STH pull-up current

18

μA

Notes:

6) Matching is defined as the difference of the maximum to minimum current divided by the setting current.

7) Not tested in production. Guaranteed by design and characterization.