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33988

更新时间： 2022-12-26 14:42:17

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		开关
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34页	1150K
描述
Dual Intelligent High-current Self-protected Silicon High Side Switch (8.0mΩ)

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33988 数据手册

Document Number: MC33988

Rev. 4.0, 11/2009

Freescale Semiconductor

Advance Information

Dual Intelligent High-current

Self-protected Silicon High Side

Switch (8.0mΩ)

33988

The 33988 is a dual self-protected 8.0mΩ silicon switch used to

replace electromechanical relays, fuses, and discrete devices in

power management applications. The 33988 is designed for harsh

environments, and it 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.

HIGH SIDE SWITCH

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.

BOTTOM VIEW

The 33988 is packaged in a power-enhanced 12 x 12 nonleaded

PQFN package with exposed tabs.

PNA SUFFIX

98ARL10521D

16-PIN PQFN

Features

• Dual 8.0mΩ max high side switch with parallel input or SPI control

• 6.0V to 27V operating voltage with standby currents < 5.0μA

• 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 overcurrent, open and shorted loads, over-

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

pin status, and program status

ORDERING INFORMATION

Temperature

Package

Device

Range (T )

MC33988CPNA

-40°C to 125°C

16 PQFN

• Enhanced -16V reverse polarity V_PWRprotection

V_DD

V_PWR

33988

VDD

VPWR

GND

I/O

WAKE

HS1

HS0

SCLK

MCU

LOAD

RST

INO

IN1

I/O

LOAD

CSNS

FSI

A/D

GND

Figure 1. 33988 Simplified Application Diagram

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

12 3 4 5 6 7...34

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