MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA

17529

9

APPLICATIONS

Typical Application

Figure 5 shows a typical application for the 17529. When

source, be sure to connect it via a resistor equal to, or greater

V

The internal charge pump of this device is generated from

sufficient gate-source voltage for the high-side MOSFETs when

full enhancement of the high-side MOSFET channels.

Figure 5. 17529 Typical Application Diagram

CEMF Snubbing Techniques

Care must be taken to protect the IC from potentially

damaging CEMF spikes induced when commutating currents in

inductive loads. Typical practice is to provide snubbing of

voltage transients by placing a capacitor or zener at the supply

terminal (VM) (see Figure 6).

Figure 6. CEMF Snubbing Techniques

PCB Layout

When designing the printed circuit board (PCB), connect

sufficient capacitance between power supply and ground

terminals to ensure proper filtering from transients. For all high-

current paths, use wide copper traces and shortest possible

distances.

MCU

17529

5.0 V

GND

C1L

C1H

C2L

C2H

IN1B

IN2A

IN2B

OE

VM

OUT1B

OUT2B

0.01

µF

OUT1A

IN1A

OUT2A

NC

NC

NC

NC

VC

VC

NC = No Connect

175XX

5.0 V

5.0 V

GND

C1L

C1H

C2L

C2H

VM

OUT

OUT

175XX

5.0 V

5.0 V

GND

C1L

C1H

C2L

C2H

VM

OUT

OUT

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com