33886 datasheet(16/25 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33886

FUNCTIONAL DESCRIPTION

FUNCTIONAL PIN DESCRIPTION

H-BRIDGE OUTPUT 1, 2 (OUT1 AND OUT2)

These pins are the outputs of the H-Bridge with integrated

output FET body diodes. The bridge output is controlled using

the IN1, IN2, D1, and D2 inputs. The outputs have active

current limiting above 6.5 A. The outputs also have thermal

shutdown (tri-state latch-OFF) with hysteresis as well as

short circuit latch-OFF protection.

A disable timer (time tb) incorporated to detect currents

that are higher than active current limit is activated at each

output activation to facilitate detecting hard output short

conditions (see Figure 9, page 9).

CHARGE PUMP CAPACITOR (CCP)

Charge pump output pin. A filter capacitor (up to 33 nF)

can be connected from the CCP pin and PGND. The device

can operate without the external capacitor, although the CCP

capacitor helps to reduce noise and allows the device to

perform at maximum speed, timing, and PWM frequency.

33886 Datasheet(PDF) 16 Page - Freescale Semiconductor, Inc