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33984C

更新时间： 2022-12-26 14:42:17

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		开关
页数	文件大小	规格书
38页	853K
描述
Dual Intelligent High-current Self-protected Silicon High Side Switch (4.0 mΩ)

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33984C 数据手册

Document Number: MC33984

Rev. 11.0, 11/2009

Freescale Semiconductor

Technical Data

Dual Intelligent High-current

Self-protected Silicon High Side

Switch (4.0 mΩ)

33984B/C

The 33984 is a dual self-protected 4.0 mΩ silicon switch used to

replace electromechanical relays, fuses, and discrete devices in

power management applications. The 33984 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.

The 33984 is packaged in a power-enhanced 12 x 12 nonleaded

PQFN package with exposed tabs.

BOTTOM VIEW

PNA SUFFIX

98ARL10521D

16-PIN PQFN

Features

• Dual 4.0 mΩ max high side switch with parallel input or SPI control

• 6.0 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

ORDERING INFORMATION

Temperature

Package

Device

Range (T )

• 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

MC33984BPNA/R2

MC33984CPNA/R2

-40°C to 125°C

16 PQFN

• Enhanced -16 V reverse polarity V_PWRprotection

V_DD

V_PWR

33984

VDD

VPWR

GND

I/O

WAKE

HS1

HS0

SCLK

MCU

LOAD

RST

INO

IN1

I/O

LOAD

CSNS

FSI

A/D

GND

Figure 1. 33984 Simplified Application Diagram

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

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

12 3 4 5 6 7...38

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