參數(shù)資料
型號(hào)： MCZ33996EK
廠(chǎng)商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： 16-Output Switch with SPI Control
中文描述： 16輸出帶有SPI控制開(kāi)關(guān)
文件頁(yè)數(shù)： 11/23頁(yè)
文件大?。?/td> 306K
代理商： MCZ33996EK
Analog Integrated Circuit Device Data
Freescale Semiconductor
11
33996
FUNCTIONAL DESCRIPTION
OPERATIONAL MODES
OPERATIONAL MODES
On each SPI communication, a 24-bit command word is
sent to the 33996 and 24-bit fault word is received from the
33996. The Most Significant Bit (MSB) is sent and received
first.
Command Register Definition:
0 = Output Command Off
1 = Output Command On
SO Definition:
0 = No fault
1 = Fault
MCU INTERFACE DESCRIPTION
In operation the 33996 functions as a 16-output serial
switch serving as a microcontroller (MCU) bus expander and
buffer with fault management and fault reporting features. In
doing so, the device directly relieves the MCU of the fault
management functions.
The 33996 directly interfaces to an MCU and operates at
system clock serial frequencies up to 6.0 MHz using a Serial
Peripheral Interface (SPI) for control and diagnostic readout.
Figure 9
shows the basic SPI configuration between an
MCU and one 33996.
Figure 9. 33996 SPI Interface with Microcontroller
All inputs are compatible with 3.3 V / 5.0 V CMOS logic
levels and incorporate positive logic. An input that is
programmed to a logic low state (< 0.8 V) will have the
corresponding output OFF. Conversely, an input
programmed to a logic high state (> 2.2 V) will have the
Table 5. Fault Operation
Serial Output (SO) Pins Reports
Overtemperature
Fault reported by Serial Output (SO) pin.
Overcurrent
SO pin reports short to battery/supply or overcurrent 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 V
PWR
= 27.5 V to 35 V. Resumes normal operation with proper voltage.
Upon recovery all outputs assume previous state or OFF based on the Overvoltage bit in the Global
Shutdown/Retry Control Register.
Overtemperature
Only the output experiencing an overtemperature fault shuts down. Output may auto-retry or remain
off according to the control bits in the Global Shutdown/Retry Control Register.
Overcurrent
Output will remain in current limit 0.9 A to 2.5 A until thermal limit is reached. When thermal limit is
reached, device will enter overtemperature shutdown. Output will operate as programmed in the
Global Shutdown/Retry Control Register. Fault flag in SO Response word will be set.
33996
MC68HCXX
Microcontroller
Receive
Buffer
Parallel
Ports
To Logic
24-Bit Shift Register
Shift Register
MOSI
SI
MISO
SO
SCLK
RST
CS
PWM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCZ33996EK 制造商:Freescale Semiconductor 功能描述:IC LOAD SWITCH 27V 32SOIC
MCZ33996EKR2 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 16 LOW SIDE SW 1.20HM RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
MCZ33998EG 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 2.6/5.0V SWITCHING POWER RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
MCZ33998EG/R2 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Switching Power Supply with Linear Regulators
MCZ33998EGR2 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 2.6/5.0V SWITCHING POWER RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
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