MC33988CHFK datasheet(1/34 Pages) FREESCALE

No. de pieza	MC33988CHFK

Descripción Electrónicos	Dual Intelligent High-current Self-protected Silicon High Side Switch (8.0 mOhm)

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Fabricante Electrónico	FREESCALE [Freescale Semiconductor, Inc]

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Document Number: MC33988

Rev. 7.0, 05/2012

Freescale Semiconductor

Technical Data

Freescale Semiconductor, Inc. reserves the right to change the detail specifications,

as may be required, to permit improvements in the design of its products.

Dual Intelligent High-current

Self-protected Silicon High Side

Switch (8.0 mOhm

)

The 33988 is a dual self-protected 8.0 m

Ω silicon switch used to

replace electromechanical relays, fuses and discrete devices in

power management applications. The 33988 is designed for harsh

environment and 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 33988 is packaged in a power-enhanced 12 x 12 mm

nonleaded PQFN package with exposed tabs.

Features

• Dual 8.0 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 over-current limit, over-current fault blanking time,

output OFF open load detection, output ON/OFF control,

watchdog timeout, slew-rates, and fault status reporting

• SPI status reporting of over-current, open and shorted loads, over-

temperature, under-voltage and over-voltage shutdown, fail-safe

pin status, and program status

• Enhanced -16 V reverse polarity VPWR protection

Figure 1. 33988 Simplified Application Diagram

HIGH SIDE SWITCH

33988

ORDERING INFORMATION

Device

(For Tape and Reel,

add an R2 Suffix)

Temperature

Range (TA)

Package

MC33988CHFK

-40 °C to 125 °C

16 PQFN

BOTTOM VIEW

FK SUFFIX

98ARL10521D

16-PIN PQFN

VDD

I/O

SO

SCLK

CS

SI

I/O

A/D

VPWR

FS

WAKE

SI

SCLK

CS

SO

RST

INO

IN1

CSNS

FSI

GND

HS1

HS0

GND

LOAD

33988

MCU

VDD

VPWR

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Freescale Semiconductor...	33988	1Mb / 34P	Dual Intelligent High-current Self-protected Silicon High Side Switch (8.0m廓)
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MC33988CHFK Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc

MC33988CHFK Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc

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