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Motorola : Semiconductors : Product Catalog : Analog : Power Management : Linear Regulator : MC33689

Page Contents

Features
Parametrics
Documentation

Other Info

MC33689 : System Base Chip

A System Base Chip (SBC) is a monolithic IC combining many functions found in standard microcontroller based systems. i.e., power management, communication interface, system protection, diagnostics, etc.

The 33689 is a SPI controlled SBC combining many functions with a LIN transceiver for slave node applications. The 33689 has a 5.0 V, 60 mA regulator with under voltage reset, output current limiting, over temperature pre-warning, and thermal shutdown. An externally selectable timing Window Watchdog is also included.

The LIN transceiver has wave shaping that can be disabled when high data rates are warranted. A single 50 mA and two 150 Ma fully protected, high side switches with output clamping are available for switching inductive or resistive loads. The 150 mA switches are PWM capable. Two high voltage inputs can be used to monitor switches or provide external wake-up. An internal sense amplifier is available for load current monitoring.

The 33689 has three operational modes:

Normal (all functions available)

Sleep (VDD OFF, Wake-up via LIN Bus or Wake-up inputs)

Stop (VDD ON allowing Wake-up via MCU, LIN Bus, or Wake-up inputs)

PRODUCT IN DESIGN CONTACT SALES FOR TECHNICAL DOCUMENTATION

MC33689 Features

5.0 V Output with Reset and Over Temperature Pre-Warning and Shutdown

SPI Control at Frequencies up to 4.0 MHz

Selectable Timing Window Watchdog

Normal, Sleep, and Stop Operating Modes

Wake-up via MCU/SPI, LIN, or Wake-Up Inputs

Interrupt Output for Over Temperature, Over Voltage, and Stop Mode Wake-Up Reporting

One 50 mA Fully Protected, High Side Switch with Output Clamping

Two 150 mA, PWM Capable, Fully Protected, High Side Switches with Output Clamping

Internal Current Sense Amplifier

LIN Transceiver capable of up to 100 kB/s with Waveshaping Disabled

LIN Bus Pin Capable of 4.0 kV ESD

MC33689 Parametrics

Characteristics	Package	Bus type and standard	Protection	Operating Voltage	I standby Max	Other Features	Control and status reporting
5.0/60mA Vreg+LIN+Wdg+ Wk UP INPUTS	32 SOICW	LIN 10 kB/s to 100 kB/s	Over Temp/Voltage/Current; Under Voltage; Bus Short	5.5 to 27V	tbd	Watchdog, wakeup input, sleep mode, cyclic wakeup, internal sense amplifier	SPI

MC33689 Documentation

Brochure

ID	Name	Format	Size K	Rev #	Date Last Modified	Order Availability
APDPAK/D	Analog ICs Portfolio Package	html	0	0	1/31/2002
BR1567/D	Analog ICs Integrated Solutions Technology	pdf	5416	0	1/16/2002
BR1568/D	Analog ICs Integrated Solutions Packaging	pdf	1411	0	1/11/2002
BR1569/D	Analog ICs Integrated Solutions Applications	pdf	2363	0	1/11/2002

Selector Guide

ID	Name	Format	Size K	Rev #	Date Last Modified	Order Availability
SG1002/D	Analog SPS Sales Guide	pdf	869	0	6/27/2002