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參數(shù)資料
| 型號： | L9848 |
| 廠商： | 意法半導體 |
| 英文描述： | OCTAL CONFIGURABLE LOW/HIGH SIDE DRIVER |
| 中文描述： | 八路可配置低/高邊驅動器 |
| 文件頁數(shù)： | 8/18頁 |
| 文件大?。?/td> | 207K |
| 代理商： | L9848 |
L9848
8/18
as well as provide proper fault mode operation with no other needed inputs. This device switch variable load
currents within the operation temperature range. The outputs are MOSFET drivers to minimize Vdd current re-
quirements. There's no VBatt input pin however VBatt is connected to the drains of high side outputs. The L9848
meets all required specifications when the supply voltage applied to the drain(s) of the outputs is within the op-
erating range. For supply voltages applied to the drain(s) down to 6.8V the part is functional however, it does
not meet all parametric limits, i.e. output on-state voltages.
Outputs - Common Characteristics
The 6 self-configuring outputs (Outputs1-6) are able to drive either incandescent lamps, inductive loads (non-
PWMed), or resistive loads biased to VBatt. These outputs are enabled and disabled via the SPI bus. Each of
these outputs is short circuit current limited and has an over-temperature protection as described under "Func-
tional Description - Thermal Shutdown". When a high side configured output is commanded OFF after having
been commanded ON, the source voltage will go to the lesser negative of (VBatt-45V). This is due to the design
of the circuitry and the transconductance of the MOSFET. When a low side configured output is commanded
OFF after having been commanded ON, the output voltage will rise to the internal zener clamp voltage (40Vdc
minimum) due to the flyback of the inductive load.
–
Output 1-4
These four outputs can be used as either high or low side drives. Integrated current source pull-ups
and pull-downs are employed to correctly latch "open load" fault data. Both of these current sources
are needed to detect an open load state since these outputs self configure as either high or low side
drives.
Drain Connections of Output1-4 (DRN1-4)
These pins are connected to the drains of the n-channel MOSFET transistors.
Source Connections of Output1-4 (SRC1-4)
These pins are connected to the sources of the n-channel MOSFET transistors.
– Output 5-6
These two self-configuring outputs can be used to drive either high or low side loads. In addition to
be controlled by the SPI BUS these outputs can also be enabled and disabled via IN5 and IN6 inputs.
IN5 and IN6 inputs are logically ORed with the SPI commands to allow either the IN5-6 inputs or the
SPI commands to activate these outputs. The use of IN5-6 for PWM control on these outputs should
only be done with non-inductive loads. Integrated current source pull-ups and pull-downs are em-
ployed to correctly latch "open load" fault data. Both of these current sources are needed to detect
an open since these outputs self configure as either high or low side drives
Drain connections of Output5-6 (DRN5-6)
These pins are connected to the drains of the n-channel MOSFET transistors.
Source connections of Output5-6 (SRC5-6)
These pins are connected to the sources of the n-channel MOSFET transistors.
–
Output7-8
These two outputs (DRN7-8) are dedicated low side drives. Integrated current source pull down are
required to correctly latch "open load" fault data.
Main Power Input (VDD)
The VDD input is the primary power source of the L9848. This supply is used as the power source for all of its
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L9848TR | 功能描述:功率驅動器IC Octal configurable Low/high side Driver RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L9856 | 功能描述:低壓差穩(wěn)壓器 - LDO High Voltage High-Side Driver RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| L9856-LF | 功能描述:功率驅動器IC High Voltage 160V 500mA High Side RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L9856TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High voltage high-side driver |
| L9856-TR | 功能描述:功率驅動器IC High Voltage High-Side Driver RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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