MPC17511 查看數據表（PDF） - Motorola => Freescale

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MPC17511

SMARTMOS 1 Channel H-Bridge Driver IC

Motorola => Freescale 

Freescale Semiconductor, Inc.

Precautions on Application

(1)When applying the gate voltage VG from an external source, be sure to connect it via a

resistor equal to or greater than RG=VG/0.02[ohm]. However, this resistance is unnecessary

if you are connecting a charge pump output from a SMARTMOS product.

VG

MPC17511

C2H

C1H

C2L

C1L

VG < 14[V]

RG > VG/0.02[ohm]

CG = 0.01[uF]

OPEN

(2)Switching from the state of active current loading to high-impedance mode, indactance load

and P.C.B. layout may induce over maximum ratings to a power supply pin. Zener diode or

capacitor at VM pin will protect kick back voltage(it depends on the indactance load).

The schottky diode at output pin will also protect it.

VM

OUTA

OUTB

VM

OUTA

OUTB

(3)Connect a capacitor of sufficient capacitance between the power supply and ground pins.

For all large-current paths, use sufficiently wide copper conductor patterns and route them

in the shortest distance possible.

(4)When using SMARTMOS products in your circuit design, make sure they are fully protected

against static charge.

For

More

Informa8tion

On

MPC17511

This Product,

:MAR.08.

2002

REV.0.5

Go to: www.freescale.com

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