MPQ7220

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

MPQ7220 Rev. 1.0

MonolithicPower.com

4

7/30/2019

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© 2019 MPS. All Rights Reserved.

PACKAGE REFERENCE

TOP VIEW

DIM

FREQ/SYNC

EN

AGND

AGND

PGND

LED4

LED1

LED2

1

2

3

4

5

6

18

17

16

15

14

13

LED3

NC

SW

Exposed Pad

TOP VIEW

PGND

DIM

FREQ

/SYNC

FF

26

25

24

23

Exposed Pad

28

27

7

8

NC

VCC

AGND

AGND

OVP

22

21

3

4

5

6

1

2

COMP

AGND

9

10

ISET

20

19

STH

FSP

VIN

SW

11

12

NC

NC

LED1

18

17

LED2

13

14

LED3

16

15

EN

SD

NC

LED4

LED5

LED6

NC

QFN-24 (4mmx4mm)

TSSOP28-EP

PIN FUNCTIONS

QFN24

Pin #

TSSOP28-

EP Pin #

Name

Description

1

5

DIM

DIM signal input. Apply a PWM signal on DIM for brightness control.

Pulled low internally. A 100Hz to 20kHz PWM signal is recommended.

Pull this pin high if the dimming function not used.

2

2, 4, 6, 22,

24

NC

Not connected.

3

7

FREQ/SYNC

Switching frequency setting and SYNC pin. Connect a resistor

between this pin and GND to set the converter’s switching frequency. Or

connect an external clock to sync the boost switching frequency.

4

8

EN

IC enable pin. Pull this pin to high enable the IC. Pull this pin low to force

the IC to enter shutdown mode.

7

11

COMP

Compensation pin.

8

12

FF

Fault flag pin. Open drain during normal operation, pulled low in any fault

mode. Float FF if not used.

9

13

ISET

LED current setting. Tie a current-setting resistor from this pin to ground

to program the current in each LED string.

5, 6, 10

9, 10, 14

AGND

Analog ground.

11

15

LED6

LED string 6 current input. Connect the LED string 6 cathode to this pin.

12

16

LED5

LED string 5 current input. Connect the LED string 5 cathode to this pin.

13

17

LED4

LED string 4 current input. Connect the LED string 4 cathode to this pin.

14

18

LED3

LED string 3 current input. Connect the LED string 3 cathode to this pin.

15

19

LED2

LED string 2 current input. Connect the LED string 2 cathode to this pin.