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33984B

更新时间： 2024-02-06 05:00:58

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		开关
页数	文件大小	规格书
36页	749K
描述
Dual Intelligent High-Current Self Protected Silicon High-Side Switch (4.0 mohm)

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33984B 数据手册

PIN CONNECTIONS

12 11 10

GND

TRANSPARENT

TOP VIEW

VPWR

HS0

HS1

Figure 3. 33984 Pin Connections (Transparent Top View)

Table 1. Pin Definitions

Functional descriptions of many of these pins can be found in the Functional Pin Description section beginning on page 16.

Function

Pin Name

Formal Name

Definition

This pin is used to output a current proportional to the designated

HS0-1 output.

CSNS

Output

Output Current Monitoring

This pin is used to input a Logic [1] signal so as to enable the

watchdog timer function.

WAKE

RST

Input

Wake

This input pin is used to initialize the device configuration and fault

registers, as well as place the device in a low current sleep mode.

Reset (Active Low)

This input pin is used to directly control the output HS0.

IN0

Input

Direct Input 0

This is an open drain configured output requiring an external pull-up

resistor to V_DDfor fault reporting.

Output

Fault Status (Active Low)

The value of the resistance connected between this pin and ground

determines the state of the outputs after a watchdog timeout occurs.

FSI

Input

Fail-Safe Input

Chip Select (Active Low)

Serial Clock

This input pin is connected to a chip select output of a master

microcontroller (MCU).

This input pin is connected to the MCU providing the required bit shift

clock for SPI communication.

SCLK

This is a command data input pin connected to the SPI Serial Data

Output of the MCU or to the SO pin of the previous device of a daisy

chain of devices.

Serial Input

This is an external voltage input pin used to supply power to the SPI

circuit.

VDD

Input

Digital Drain Voltage

(Power)

33984

Analog Integrated Circuit Device Data

Freescale Semiconductor

1 234 5 6 7...36

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