MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA

34923

3

.

PIN FUNCTION DESCRIPTION

Pin

Pin Name

Formal Name

Definition

Boost Voltage

Boost voltage storage node.

2

CP2

Switching Capacitor 2

Charge pump capacitor connection 2.

3

CP1

Switching Capacitor 1

Charge pump capacitor connection 1.

4

DIR

Direction

Logic-level input for direction control.

5

OSC

Oscillator

Logic-level oscillator (square wave) input.

6, 7, 18, 19

GND

Ground

Ground.

Logic Voltage

Low voltage (typically 5.0 V) logic supply.

9

PWM/ENABLE

H-Bridge Enable

Logic-level input for enabling the H-bridge driver.

10

DATA

Serial Data

Logic-level input for serial interface.

11

CLOCK

Serial Data Clock

Logic-level input for serial port (data is entered on rising edge).

12

STROBE

Serial Data Latch Strobe

Logic-level input for serial port (active on rising edge).

13

Current Limit Reference

Voltage

Load current reference input voltage.

14

PWMMODE

PWM Mode Control

Logic-level input for PWM mode control when in internal PWM mode.

15, 22

NC

No Connect

No internal connection to this pin.

16

DCMA

H-Bridge Output A

One of two bridge outputs to the motor.

17

SENSE

Current Sense

Sense resistor.

20

H-Bridge Voltage Supply

High-current (20 V to 45 V) load supply.

21

DCMB

H-Bridge Output B

One of two bridge outputs to the motor.

23

SPAN

Current Limit Reference Range

24

Bandgap Voltage

Bandgap decoupling capacitor.

5

6

7

8

9

10

11

12

2

3

4

24

20

19

18

17

16

15

13

23

22

21

14

1

GND

GND

SENSE

DCMA

NC

PWMMODE

SPAN

NC

DCMB

OSC

GND

GND

PWM/ENABLE

DATA

STROBE

CP2

CP1

DIR

CLOCK

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com