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Motorola : Semiconductors : Product Catalog : Analog : Power Management : Switching Regulator : MC33394

Page Contents

Features
Parametrics
Documentation
Orderable Parts

Other Info

MC33394 : Power Oak

The 33394 is a multi-output power supply device with high speed CAN transceiver. The IC incorporates a step-up/step-down switching pre-regulator, high operates over a wide input voltage range from 4.0 V to 26.5 V with transients up to 45 V. The following low drop out linear regulators provide several different output voltages to supply the microcontroller core and I/O, FLASH memory, sensors and other circuits. Active reset circuitry protects the data coherency of the microcontroller any time one of the three core voltages goes out of regulation. Power sequencing circuitry guarantees the core supply voltages never exceed their limits or polarities during system power up and power down. A high speed CAN transceiver physical layer interfaces between the microcontroller CMOS outputs. The CAN driver is short circuit protected and tolerant of loss of battery or ground conditions. 33394 is designed specifically to meet the needs of modules, which use advanced 32-bit microprocessor architectures like the Motorola MPC5xx and MPC824x microcontroller families.

MC33394 Features

Wide operating voltage range 4.0 V up to 26.5 V(45 V transient)

Step-up/step-down switching pre-regulator

Multiple linear regulators with current limiting

Adjustable low voltage linear regulator with external pass transistor

Adjustable low power keep alive linear regulator

Three sensor supplies protected agains short-to-battery and short-to-ground

/SLEEP and REGON control pins

Reset signals,Power On Reset

Serial peripheral interface for control and diagnostic

High speed CAN transceiver with wakeup capability

Accurate power sequencing for advanced microprocessor architectures.

MC33394 Parametrics

Characteristics	Package	Operating Input Voltage	Output Voltage	Protection	Availability
Stepdown/Stepup switching regulator - 8 voltage regulators (5V, 3.3V, 2.6V adj)-2.6V adj. standby regulator, switched battery output, power sequencing, resets, high speed CAN Transceiver with wakeup function	44 HSOP, 44 QFN (9x9), 54 SOICW-EP	4.0 to 26.5V (45V Transient)	5V@400mA - 3x5V@100mA - 5V/3.3V@150mA - 3.3V@120mA- 2.6v adj@400mA - 2.6V adj@50mA standby - switched battery	Short Circuit to GND, Short Circuit to battery, Current limit, thermal	NOW

MC33394 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

Data Sheets

ID	Name	Format	Size K	Rev #	Date Last Modified	Order Availability
MC33394/D	MC33394 Switch Mode Power Supply with Multiple Linear Regulators and High Speed CAN Transceiver	pdf	673	2.4	9/19/2002

Fact Sheets

ID	Name	Format	Size K	Rev #	Date Last Modified	Order Availability
MC33394FS/D	Analog Products PC33394 Fact Sheet	pdf	523	0	1/16/2002

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
SG2076/D	Application Summary - Robotic Arm. Use of hybrid architecture combining an MPC5xx microcontroller unit (MCU) and 2 to 3 TouCAN modules can be used in applications that range from a toy to industrial manufacturing.	pdf	106	0	6/24/2002

Orderable Parts Information

PartNumber	Package Info	Life Cycle Description (code)	Remarks	Budgetary Price QTY 1000+ ($US)	Order Availability
PC33394DWB	SOW54	PRODUCT NEWLY INTRO'D/RAMP-UP(1)	-	-	-
PC33394FC	QFN44 (9x9)	PRODUCT NEWLY INTRO'D/RAMP-UP(1)	-	-	-
MC33394DHR2	HSOP44 T/R	-	-	$4.34
MC33394DH	HSOP44	-	-	$4.32