MC33291 Datasheet

IC型号：
MC33291
PDF描述：
Eight Output Switch with Serial Peripheral Interface I/O
文件大小：
424.15KB
芯片厂家：
Motorola

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Freescale Semiconductor, Inc.

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Document order number: MC33291/D

Rev 2, 11/2002

33291

Eight Output Switch with Serial

Peripheral Interface I/O

The 33291 device is an eight output, low side power switch with 8-bit serial

input control. The 33291 is a versatile circuit designed for automotive applica-

tions, but is well suited for other environments. The 33291 incorporates

SMARTMOS铮?technology, with CMOS logic, bipolar/MOS analog circuitry,

and DMOS power MOSFETs. The 33291 interfaces directly with a microcon-

troller to control various inductive or incandescent loads.

The circuit鈥檚 innovative monitoring and protection features include: Very

Low Standby Current, SPI Cascade Fault Reporting Capability, Internal 53 V

Clamp on Each Output, Output Specific Diagnostics, Independent Shutdown

of Outputs.

The device is parametrically specified over an ambient temperature range

of -40掳C

鈮?/div>

125掳C and 9.0 V

鈮?/div>

PWR

鈮?/div>

16 V supply.

Features:

鈥?Designed to Operate Over Wide Supply Voltages of 5.5 to 26.5 V

鈥?Interfaces to Microprocessor Using 8-Bit SPI I/O Protocol up to 3.0 MHz

鈥?1.0 A Peak Current Outputs with Maximum R

DS(on)

of 1.6

鈩?/div>

at T

- 150掳C

鈥?Outputs Current Limited to Accommodate In-rush Currents Associated

with Switching Incandescent Loads

鈥?Output Voltages Clamped to 53 V During Inductive Switching

鈥?Maximum Sleep Current (I

PWR

) of 25 碌A

鈥?Maximum of 4.0 mA I

During Operation

EIGHT OUTPUT SWITCH

(SPI I/O)

Freescale Semiconductor, Inc...

Package Options

DW SUFFIX

PLASTIC PACKAGE

CASE 751E

SOICW (16+4+4)

ORDERING INFORMATION

Device

MC33291DW

MC33291DWR2

Temperature

Range T

-40

掳

C to 125

掳

-40

掳

C to 125

掳

Package

SOIC-24

33291 Simplified Application Schematic

SFPD

PWR

Output 0

Output 1

BAT

SFPD

Micro-

controller

SCLK

RST

CMOS

Serial

Shift

Registers

and

Latches

CMOS

Input

Logic

Updrain

DMOS

Output 3

Output

Switches

and

Output 4

Sense

Circuits

Output 5

Output 6

Output 2

Output 7

GND

This device contains 1266 active transistors.

漏 Motorola, Inc. 2002

For More Information On This Product,

Go to: www.freescale.com

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