MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

© Motorola, Inc. 2004

Document order number: MC33984

Rev 4.0, 09/2004

33984

Advance Information

Simplified Application Diagram

33984

MCU

V

PWR

I/O

FS

I/O

SO

SCLK

SI

CS

I/O

I/O

IN0

I/O

IN1

A/D

CSNS

FSI

HS0

GND

GND

GND

V

PWR

PWR GND

WAKE

SI

SCLK

SO

RST

CS

LOAD

HS1

LOAD

Dual Intelligent High-Current

Self-Protected Silicon High-Side

Switch (4.0 m

Ω)

The 33984 is a dual self-protected 4.0 m

Ω silicon switch used to replace

electromechanical relays, fuses, and discrete devices in power management

applications. The 33984 is designed for harsh environments, and it includes

self-recovery features. The device is suitable for loads with high inrush current,

as well as motors and all types of resistive and inductive loads.

Programming, control, and diagnostics are implemented via the Serial

Peripheral Interface (SPI). A dedicated parallel input is available for alternate

and pulse-width modulation (PWM) control of each output. SPI-programmable

fault trip thresholds allow the device to be adjusted for optimal performance in

the application.

The 33984 is packaged in a power-enhanced 12 x 12 nonleaded PQFN

package with exposed tabs.

Features

•Dual 4.0 m

Ω Max High-Side Switch with Parallel Input or SPI Control

• 6.0 V to 27 V Operating Voltage with Standby Currents < 5.0

µA

• Output Current Monitoring with Two SPI-Selectable Current Ratios

• SPI Control of Overcurrent Limit, Overcurrent Fault Blanking Time,

Output-OFF Open Load Detection, Output ON/OFF Control, Watchdog

Timeout, Slew Rates, and Fault Status Reporting

• SPI Status Reporting of Overcurrent, Open and Shorted Loads,

Overtemperature, Undervoltage and Overvoltage Shutdown, Fail-Safe

Pin Status, and Program Status

DUAL HIGH-SIDE SWITCH

4.0 m

Ω

ORDERING INFORMATION

Device

Temperature

Package

MC33984PNA/R2

-40

16 PQFN

33984 Simplified Application Diagram

SCALE 1:1

Bottom View

PNA SUFFIX

CASE 1402-02

16-TERMINAL PQFN (12 x 12)

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com