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參數(shù)資料
| 型號： | MCZ33298EG |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 5/28頁 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 8X LOSIDE W/SPI 24SOIC |
| 標準包裝： | 30 |
| 系列： | * |
| 應用： | * |
| 接口： | * |
| 電源電壓： | * |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 24-SOIC |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
13
33298
FUNCTIONAL DESCRIPTION
INTRODUCTION
ARCHIVE
INFORMATION
ARCHIVE
INFORMATION
FUNCTIONAL DESCRIPTION
INTRODUCTION
The 33298 was conceived, specified, designed, and
developed for automotive applications. It is an eight output
low side power switch having 8-bit serial control. The 33298
incorporates SMARTMOS
technology having effective 1.5
CMOS logic, bipolar/MOS analog circuitry, and independent
state of the art double diffused MOS (DMOS) power output
transistors. Many benefits are realized as a direct result of
using this mixed technology. A simplified block diagram
delineates 33298 in Figure 1.
Where bipolar devices require considerable control
current for their operation, structured MOS devices, since
they are voltage controlled, require only transient gate
charging current affording a significant decrease in power
consumption. The CMOS capability of the SMARTMOS
process allows significant amounts of logic to be
economically incorporated into the monolithic design.
Additionally, the bipolar/MOS analog circuits embedded
within the updrain power DMOS output transistors monitor
and provide fast, independent protection control functions for
each individual output. All outputs have internal 65V at 0.5A
independent output voltage clamps to provide fast inductive
turn-off and transient protection.
The 33298 uses high efficiency updrain power DMOS
output transistors exhibiting very low room temperature
drain-to-source ON resistance values (RDS(on) ≤ 1.0Ω at 13V
VPWR) and dense CMOS control logic. Operational bias
currents of less than 2.0mA (1.0mA typical) with any
combination of outputs ON are the result of using this mixed
technology and would not be possible with bipolar structures.
To accomplish a comparable functional feature set using a
bipolar structure approach, would result in a device requiring
hundreds of milliamperes of internal bias and control current.
This would represent a very large amount of power to be
consumed by the device itself and not available for load use.
During operation, the 33298 functions as an eight 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 33298 directly relieves the MCU of the fault
management functions. The 33298 directly interfaces to an
MCU, operating at system clock serial frequencies in excess
of 3.0MHz. It uses a Synchronous Peripheral Interface (SPI)
for control and diagnostic readout. Figure 13 illustrates the
basic SPI configuration between an MCU and one 33298.
Figure 13. SPI Interface with Microcontroller
The circuit can also be used in a variety of other
applications in the computer, telecommunications, and
industrial fields. It is parametrically specified over an input
battery /supply range of 9.0 to 16V but is designed to operate
over a considerably wider range of 5.5 to 26.5V. The design
incorporates the use of Logic Level MOSFETs as output
devices. These MOSFETs are sufficiently turned ON with a
gate voltage of less than 5.0V thus eliminating the need for
an internal charge pump. Each output is identically sized and
independent in operation. The efficiency of each output
transistor, at room temperature provides as little as 9.0V
supply (VPWR), the maximum RDS(on) of an output
All inputs are compatible with 5.0V CMOS logic levels,
incorporating negative or inverted logic. Whenever an input is
programmed to a logic low state (<1.0V) the corresponding
low side switched output being controlled will be active low
and turned ON. Conversely, whenever an input is
programmed to a logic high state (>3.0V), the output being
controlled will be high and turned OFF.
33298
MC68HCXX
Microcontroller
Shift Register
To
Logic
Receive
Buffer
Parallel
Ports
MOSI
SI
MISO
SO
SCLK
RST
CS
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| MCZ33298EG/R2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Eight Output Switch with Serial Peripheral Interface I/O |
| MCZ33298EGR2 | 功能描述:電源開關(guān) IC - 配電 OCTAL SERIAL SWITCH RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| MCZ3334EF | 功能描述:基準電壓& 基準電流 HI ENERGY IGNITION RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MCZ3334EFR2 | 功能描述:基準電壓& 基準電流 HI ENERGY IGNITION RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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