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33394 Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc

Part No. 33394
Description  Switch Mode Power Supply with Multiple Linear Regulators and High Speed CAN Transcelver
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Maker  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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33394 Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc

 
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33394
SEMICONDUCTOR
TECHNICAL DATA
MULTI–OUTPUT
POWER SUPPLY
PIN CONNECTIONS
Order this document from Analog Marketing
Rev. 2.5, 11/2002
44–Lead HSOP
DH SUFFIX
CASE 1291
44–Lead QFN
FC SUFFIX
CASE 1310
(BOTTOM VIEW)
GND
CANTXD
CANL
CANRXD
CANH
/PORESET
HRT
/HRESET
/SLEEP
/PRERESET
N/C
N/C
CS
VDDL_FB
DI
VDDL_B
SCLK
VDDL_X
DO
VDD3_3FB
N/C
VDD3_3
VREF3
VPP
VREF2
VPP_EN
VDDH
VREF1
VPRE_S
WAKEUP
VPRE
REGON
VCOMP
VSEN
INV
VKAM_FB
GND
VKAM
SW2G
VIGN
BOOT
N/C
N/C
KA_VBAT
1
54–Lead SOICW–EP
DWB SUFFIX
CASE 1377
SW1
SW1
SW1
SW1
SW1
VBAT
VBAT
VBAT
VBAT
VBAT
SOICW
1
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
Switch Mode Power Supplywith
Multiple Linear Regulators and
High Speed CAN Transceiver
The 33394 is a multi–output power supply integrated circuit with high
speed CAN transceiver. The IC incorporates a switching pre–regulator
operating over a wide input voltage range from +4.0V to +26.5V (with
transients up to 45V).
The switching regulator has an internal 3.0A current limit and runs in both
buck mode or boost mode to always supply a pre–regulated output followed
by Low Drop Out (LDO) regulators: VDDH / 5.0V @ 400mA; VDD3_3 / 3.3V
@ 120mA; VDDL / 2.6V (User scalable between 3.3V – 1.25V) @ 400mA
typically, using an external NPN pass transistor. The Keep Alive regulator
VKAM (scalable) @ 50mA; FLASH memory programming voltage VPP /
5.0V or 3.3V @ 150mA; three sensor supply outputs VREF(1,2,3) / 5.0V
(tracking VDDH) @ 100mA each; and a switched battery output (VSEN) to
supply 125mA clamped to 17V.
Additional features include Active Reset circuitry watching VDDH,
VDD3_3, VDDL and VKAM, user selectable Hardware Reset Timer (HRT),
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 and differential bus lines. 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
the MPC565 microcontroller, though it will also support others from the
MPC5XX family of Motorola microcontrollers.
Features:
Wide operating input voltage range: +4.0V to +26.5V (+45V transient).
Provides all regulated voltages for MPC5XX MCUs and other ECU’s
logic and analog functions.
Accurate power up/down sequencing.
Provides necessary MCU support monitoring and fail–safe support.
Provides three 5.0 V buffer supplies for internal & external (short–circuit
protected) sensors.
Includes step–down/step–up switching regulator to provide supply
voltages during different battery conditions.
Interfaces Directly to Standard 5.0V I/O for CMOS Microprocessors by
means of Serial Peripheral Interface.
PIN CONNECTIONS
VBAT
VBAT
KA_VBAT
VIGN
VKAM
SW1
SW1
SW1
BOOT
SW2G
GND
/SLEEP
HRT
CANH
CANL
GND
CANTXD
CANRXD
/PORESET
/HRESET
/PRERESET
VDDL_FB
1
VBAT
SW1
VBAT
SW1
KA_VBAT
SW1
VIGN
BOOT
VKAM
SW2G
VKAM_FB
GND
VSEN
INV
REGON
VCOMP
WAKEUP
VPRE
VREF1
VPRE_S
VPP_EN
VDDH
VPP
VREF2
VDD3_3
VREF3
VDD3_3FB
DO
VDDL_X
SCLK
VDDL_B
DI
VDDL_FB
CS
/PRERESET
/SLEEP
/HRESET
HRT
/PORESET
CANH
CANRXD
CANL
CANTXD
GND
1
HSOP
QFN
TOP VIEW
© Motorola, Inc. 2002
This document contains information on a new product. Specifications
and information herein are subject to change without notice.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


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