參數(shù)資料
型號(hào)： MC33298P
廠商： MOTOROLA INC
元件分類： 外設(shè)及接口
英文描述： OCTAL SERIAL SWITCH (SPI Input/Output)
中文描述： 1 A 8 CHANNEL, SIPO BASED PRPHL DRVR, PDIP20
封裝： PLASTIC, DIP-20
文件頁(yè)數(shù)： 2/24頁(yè)
文件大小： 280K
代理商： MC33298P
MC33298
2
MOTOROLA ANALOG IC DEVICE DATA
ILimit
Output 0
RS
Open
Load
Detect
Short
Circuit
Detect
Over
Temperature
Detect
SO
SI
SCLK
CSB
Reset
SFPD
VDD
Gate
Control
65 V
Outputs
1 – 7
Grounds
Figure 1. Simplified Block Diagram
Overvoltage
Detect
Voltage
Regulator
Fault
Timers
OVD
RB
SFPDB
SFL
CSB
SCLK
SI
SO
CSI
CSBI
To Gates
1 – 7
From Detectors 1 to 7
VPWR
Serial D/O
Line Driver
SPI
Interface
Logic
GE
OT
SF
OF
20
μ
A
20
μ
A
Bias
FAULT OPERATION
SERIAL OUTPUT (SO) PIN REPORTS
Overvoltage
Overvoltage condition reported.
Over Temperature
Fault reported by Serial Output (SO) pin.
Over Current
SO pin reports short to battery/supply or over current condition.
Output “On,” Open Load Fault
Not reported.
Output “Off,” Open Load Fault
SO pin reports output “off” open load condition.
DEVICE SHUTDOWNS
Overvoltage
Total device shutdown at VPWR = 28–36 V. Re–operates when overvoltage is removed with
all outputs assuming an off state upon recovery from overvoltage. All device registers are
automatically reset (cleared) during shutdown.
Over Temperature
Only the output experiencing an over temperature shuts down.
Over Current
Only the output experiencing an over current condition shuts down at 3.0 A to 6.0 A after a
25
μ
s to 100
μ
s delay, with SFPD pin grounded. All outputs will continue to operate in a current
limit mode, with no shutdown, if the SPFD pin is at 5.0 V.
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