MP6604A

– SIMPLE, DUAL H-BRIDGE DRIVER WITH SEPARATE IN AND EN PINS

MP6604A Rev. 1.1

MonolithicPower.com

4

5/12/2023

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© 2023 MPS. All Rights Reserved.

PIN FUNCTIONS

Pin #

Name

Description

QFN-28

(4mmx

5mm)

TSSOP-

28EP

1, 8

4, 11

VIN

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

≥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 ceramic capacitor with X7R dielectrics

between the VREG and GND pins.

This capacitor should be rated for ≥16V.

13

16

nRESET

Reset input. Pull the nRESET pin low to reset the protection circuits and

disable the outputs. nRESET has an internal pull-down resistor.

14

17

nSLEEP

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

nSLEEP has an internal pull-down resistor.

15

18

nFAULT

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

an external pull-up resistor if used. If a fault occurs, nFAULT is pulled low.

16

20

AIN2

Control input of AOUT2. The AIN2 pin has an internal pull-down resistor.

17

21

AIN1

Control input of AOUT1. The AIN1 pin has an internal pull-down resistor.

18

22

BIN1

Control input of BOUT1. The BIN1 pin has an internal pull-down resistor.

19

23

BIN2

Control input of BOUT2. The BIN2 pin has an internal pull-down resistor.

20

24

nAEN1

AOUT1 enable. Pull nAEN1 low to enable the corresponding output

(AOUT1). nAEN1 has an internal pull-down resistor.

21

25

nAEN2

AOUT2 enable. Pull nAEN2 low to enable the corresponding output

(AOUT2). nAEN2 has an internal pull-down resistor.

22

26

nBEN1

BOUT1 enable. Pull nBEN1 low to enable the corresponding output

(BOUT1). nBEN1 has an internal pull-down resistor.

23

27

nBEN2

BOUT2 enable. Pull nBEN2 low to enable the corresponding output

(BOUT2). nBEN1 has an internal pull-down resistor.

25

1

CPA

Charge pump capacitor terminal A. Connect a 100nF ceramic capacitor

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

26

2

CPB

Charge pump capacitor terminal B. Connect a 100nF ceramic capacitor

rated for VIN between the CPA and CPB pins.

27

3

VCP

Charge pump output. Connect a 1µF ceramic capacitor between the VCP

and VIN pins.

This capacitor should be rated for ≥16V.