參數(shù)資料
型號(hào)： MC33291
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： Eight Output Switch with Serial Peripheral Interface I/O(帶SPI接口的八輸出開(kāi)關(guān))
中文描述： 8個(gè)串行外圍接口的I / O（帶的SPI接口的八輸出開(kāi)關(guān)輸出開(kāi)關(guān)）
文件頁(yè)數(shù)： 16/24頁(yè)
文件大?。?/td> 633K
代理商： MC33291
33291
16
Go to: www.freescale.com
ON delay. It may be easier to incorporate delay into the
software program and use a parallel port pin of the MCU to
control the 33291 Reset pin.
SFPD Pin
The Short Fault Protect Disable (SFPD) pin is used to
prevent the outputs from latching-off due to an over current
condition. This feature provides control of incandescent lamp
loads where in-rush currents exceed the device’s analog
current limits. Essentially the SFPD pin determines whether the
33291 output(s) will instantly shutdown upon sensing an output
short or remain ON in a current limiting mode of operation until
the output short is removed or thermal shutdown is reached. If
the SFPD pin is tied to V
DD
= 5.0 V the 33291 output(s) will
remain ON in a current limited mode of operation upon
encountering a load short to supply or over current condition.
When the SFPD pin is grounded, a short circuit will immediately
shut down only the output affected. Other outputs not having a
fault condition will operate normally. The short circuit operation
is addressed in more detail later.
Power Consumption
The 33291 has extremely low power consumption in both the
operating and standby modes. In the standby, or
Sleep
mode,
with V
DD
≤
2.0 V, the current consumed by the V
PWR
pin is less
than 25 μA. In the operating mode, the current drawn by the
V
DD
pin is less than 4.0 mA (1.0 mA typical) while the current
drawn at the V
PWR
pin is 2.0 mA maximum (1.0 mA typical).
During normal operation, turning outputs ON increases I
PWR
by
only 20 μA per output. Each output experiencing a
soft short
(over current conditions just under the current limit), adds 0.5
mA to the I
PWR
current.
Paralleling of Outputs
Using MOSFETs as output switches permits connecting any
combination of outputs together. R
DS(on)
of MOSFETs have an
inherent positive temperature coefficient providing balanced
current sharing between outputs without destructive operation
(bipolar outputs could not be paralleled in this fashion as
thermal run-away would likely occur). The device can even be
operated with all outputs tied together. This mode of operation
may be desirable in the event the application requires lower
power dissipation, or the added capability of switching higher
currents.
Performance of parallel operation results in a corresponding
decrease in R
DS(on)
while the Output OFF Open Load Detect
Currents and the Output Current Limits increase
correspondingly (by a factor of eight if all outputs are
paralleled). Less than 125 m
R
DS(on)
at 25
°
C with current
limiting of eight to 24 A will result if all outputs are paralleled
together. There will be no change in the over voltage detect or
the OFF output threshold voltage range. The advantage of
paralleling outputs within the same 33291 affords the existence
of minimal R
DS(on)
and output clamp voltage variation between
outputs.
Typically, the variation of R
DS(on)
between outputs of the
same device is less than 0.5 percent. The variation in clamp
voltages, potentially affecting dynamic current sharing, is less
than five percent. Paralleling outputs from two or more different
devices is possible, but it is not recommended. There is no
guarantee the R
DS(on)
and clamp voltage of the two devices will
match. System level thermal design analysis and verification
should be conducted whenever paralleling outputs; particularly
where different devices are involved.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
相關(guān)PDF資料
PDF描述
MC33298 Eight Output Switch with Serial Peripheral Interface I/O(帶SPI接口的八輸出開(kāi)關(guān))
MC33385 QUAD LOW SIDE DRIVER(四低端驅(qū)動(dòng)器)
MC33388 Fault Tolerant CAN Interface(容錯(cuò)CAN接口)
MC33389 System Basis Chip with Low Speed Fault Tolerant CAN(帶低速容錯(cuò)CAN接口的系統(tǒng)基片)
MC33390 J-1850 SERIAL TRANSCEIVER(串行J-1850總線收發(fā)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC33291DW 功能描述:IC SWITCH 8X L-SIDE W/SPI 24SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動(dòng)器 - 內(nèi)部開(kāi)關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類(lèi)型:高端/低端驅(qū)動(dòng)器 輸入類(lèi)型:SPI 輸出數(shù):8 導(dǎo)通狀態(tài)電阻:850 毫歐，1.6 歐姆 電流 - 輸出 / 通道:205mA，410mA 電流 - 峰值輸出:500mA，1A 電源電壓:9 V ~ 16 V 工作溫度:-40°C ~ 150°C 安裝類(lèi)型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:PG-DSO-20-45 包裝:帶卷 (TR)
MC33291DWR2 功能描述:IC SWITCH 8X L-SIDE W/SPI 24SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動(dòng)器 - 內(nèi)部開(kāi)關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類(lèi)型:高端/低端驅(qū)動(dòng)器 輸入類(lèi)型:SPI 輸出數(shù):8 導(dǎo)通狀態(tài)電阻:850 毫歐，1.6 歐姆 電流 - 輸出 / 通道:205mA，410mA 電流 - 峰值輸出:500mA，1A 電源電壓:9 V ~ 16 V 工作溫度:-40°C ~ 150°C 安裝類(lèi)型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:PG-DSO-20-45 包裝:帶卷 (TR)
MC33291LDW 功能描述:IC SWITCH 8X L-SIDE W/SPI 24SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動(dòng)器 - 內(nèi)部開(kāi)關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類(lèi)型:高端/低端驅(qū)動(dòng)器 輸入類(lèi)型:SPI 輸出數(shù):8 導(dǎo)通狀態(tài)電阻:850 毫歐，1.6 歐姆 電流 - 輸出 / 通道:205mA，410mA 電流 - 峰值輸出:500mA，1A 電源電壓:9 V ~ 16 V 工作溫度:-40°C ~ 150°C 安裝類(lèi)型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:PG-DSO-20-45 包裝:帶卷 (TR)
MC33292 制造商:SPC Multicomp 功能描述:HEATSINK TO220 10.2/W NOTCHED 制造商:SPC Multicomp 功能描述:HEATSINK TO220 10.2C/W NOTCHED 制造商:PRIVATE LABEL 功能描述:HEATSINK TO220 10.2C/W NOTCHED, Packages Cooled:TO-220, Thermal Resistance:10.2 制造商:SPC Multicomp 功能描述:HEAT SINK, Packages Cooled:TO-220, Thermal Resistance:10.2C/W, External Height - Imperial:1.496", External Height - Metric:38mm, External Width - Imperial:1.358", External Width - Metric:34.5mm, External Length - Imperial:0.492" , RoHS Compliant: Yes
MC33293 制造商:SPC Multicomp 功能描述:CLIP 001 制造商:SPC Multicomp 功能描述:CLIP; Fixing Type:Clip; For Use With:Heat Sinks (MC33285, MC33286, MC33287, MC33288, MC33289, MC33290, MC33291, MC33292); External Length:37.08mm; External Width:3.99mm; Clip Style:Mounting Clip; Length:37.08mm ;RoHS Compliant: Yes
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*