MP6604C

– 4.5V TO 45V, 2.5A, SIMPLE DUAL H-BRIDGE DRIVER (HS/LS)

MP6604C Rev. 1.1

MonolithicPower.com

3

5/12/2023

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© 2023 MPS. All Rights Reserved.

PIN FUNCTIONS

Pin #

(QFN-28)

Pin #

(TSSOP-28EP)

Name

Description

1, 8

4, 11

VIN

Input supply voltage. Decouple the VIN pin to ground using a

minimum 100nF ceramic capacitor. Additional bulk capacitance

may be required.

2

5

AOUT1

Bridge A output terminal 1.

3

6

PGNDA

Power ground for H-bridge A outputs.

4

7

AOUT2

Bridge A output terminal 2.

5

8

BOUT2

Bridge B output terminal 2.

6

9

PGNDB

Power ground for H-bridge B outputs.

7

10

BOUT1

Bridge B output terminal 1.

11, 24

14, 28

GND

Signal ground.

12

15

VREG

Internal regulator. Connect a 1µF, 16V ceramic capacitor (X7R) to

ground.

13

16

nRESET

Reset input. Pull the nRESET pin active low to reset the protection

circuits and disable the outputs. This pin is pulled down internally.

14

17

nSLEEP

Sleep mode input. Pull the nSLEEP pin logic low to enter low-

power sleep mode. This pin has an internal pull-down resistor.

15

18

nFAULT

Fault indication. The nFAULT pin is an open-drain output that pulls

to logic low if a fault is detected. If nFAULT is used, it requires an

external pull-up resistor.

16

20

AHS1

AOUT1 high-side MOSFET (HS-FET) control input. A high input

turns on the AOUT1 HS-FET. AHS1 is pulled down internally.

17

21

ALS1

AOUT1 low-side MOSFET (LS-FET) control input. A high input

turns on the AOUT1 LS-FET. ALS1 is pulled down internally.

18

22

AHS2

AOUT2 HS-FET control input. A high input turns on the AOUT2

HS-FET. AHS2 is pulled down internally.

19

23

ALS2

AOUT2 LS-FET control input. A high input turns on the AOUT2

LS-FET. ALS2 is pulled down internally.

20

24

BHS1

BOUT1 HS-FET control input. A high input turns on the BOUT1

HS-FET. BHS1 is pulled down internally.

21

25

BLS1

BOUT1 LS-FET control input. A high input turns on the BOUT1

LS-FET. BLS1 is pulled down internally.

22

26

BHS2

BOUT2 HS-FET control input. A high input turns on the BOUT2

HS-FET. BHS2 is pulled down internally.

23

27

BLS2

BOUT2 LS-FET control input. A high input turns on the BOUT2

LS-FET. BLS2 is pulled down internally.

25

1

CPA

Charge pump capacitor. Connect a 100nF ceramic capacitor rated

for the input voltage (VIN) between the CPA and CPB terminals.

26

2

CPB

27

3

VCP

Charge pump output. The VCP pin requires a 1µF, 16V ceramic

capacitor connected to VIN.