- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383255 > L9848 (意法半導體) OCTAL CONFIGURABLE LOW/HIGH SIDE DRIVER PDF資料下載
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(qū)動器 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大小： | 207K |
| 代理商： | L9848 |
9/18
L9848
logic circuitry and other miscellaneous functions. Notice that if the L9848 is interfaced to a processor operating
with a lower voltage (e.g. 3.0 VDC), the microprocessor inputs connected to the L9848 will swing from 0 to 5.0
VDC.
Discrete Inputs (IN5-6)
These inputs allow Output5-6 to be enabled via this external pin without the use of the SPI. A logic "1" on these
inputs enables the corresponding output no matter what the status of the SPI command register. A logic "0" on
these inputs disables the corresponding output if the SPI command register is not commanding this output on.
These pins can be left "open" if the outputs are controlled only via the SPI (internally pulled down). These inputs
are ideally suited for non-inductive loads that are pulse width modulated (PWMed). This allows PWM control
without the use of the SPI. The TTL level compatible input voltages allow proper operation with microprocessors
that are using 5.0V or 3.0V for their Vdd supply.
Serial Peripheral Interface (SPI)
A standard serial peripheral interface, consisting of Serial Clock (SCLK), Data Out (DO), Data In (DI), and Chip
Select (CS) is implemented to allow access to the internal registers of the L9848. All outputs are controlled via
the SPI.The input pins CS, SCLK, and DI have TTL level compatible input voltages allowing proper operation
from microprocessors that are using 5.0V or 3.0V for their VDD supply. The design of the L9848 allows a "daisy-
chaining" of multiple L9848's to further reduce the need for controller pins.
–
Serial Data Output (DO)
This output pin is in a tri-state condition when CS is a logic "0" (LOW). When CS is a logic "1" (HIGH),
this pin always transmits 8bits of data from the fault register to the digital controller. After the first 8bits
data are transmitted the DO output then sequentially transmits the digital data that was just received
(8 SCLK cycles earlier) on the DI pin. The DO output continues to transmit the 8 SCLK delayed bit
data from the DI input until CS eventually transitions from a logic "1" to a logic "0". DO data changes
state 10 ns or later, after the falling edge of SCLK. By definition, the MSB (Table 3) is the first bit of
the byte transmitted on DO and the LSB is the last bit of the byte transmitted on DO, once CS tran-
sitions from a logic "0" to a logic "1".
–
Serial Data Input (DI)
This input takes data from the digital controller while CS is HIGH. The L9848 accepts an 8bit data
stream to command the outputs ON or OFF. By definition, the MSB (Table 1) is the first bit of each
byte received on DI and the LSB is the last bit of each byte received on DI, once CS transitions from
a logic "0" to a logic "1".
–
Chip Select (CS)
This is the chip select input pin. On the rising edge of CS, the DO pin switches from tri-state to active-
out mode. While CS is high, register data is shifted in and shifted out by the DI and DO pin, respec-
tively, on each subsequent SCLK. On the falling edge of CS, the DO pin switches back to tri-state
mode and the fault register will be "Cleared" if a valid DI byte was received.
A valid DI byte is defined as such:
1st
A multiple of 8 bits was received
2nd
SCLK was low when CS went low
3rd
Current SPI cycle started when SCLK was low
The fault data is not cleared unless all of the 3 previous conditions have been met. A SCLK transition
must be seen before CS is interpreted as active. To allow sufficient time to reload the fault registers,
the CS pin must remain low for a minimum of 1μs prior to going high again, before it starts shifting
相關PDF資料 |
PDF描述 |
|---|---|
| L9903 | MOTOR BRIDGE CONTROLLER |
| L9904 | MOTOR BRIDGE CONTROLLER |
| L9907 | MOTOR BRIDGE FOR HEADLIGHT ADJUSTMENT |
| L9907N | MOTOR BRIDGE FOR HEADLIGHT ADJUSTMENT |
| L9907ND | MOTOR BRIDGE FOR HEADLIGHT ADJUSTMENT |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L9848TR | 功能描述:功率驅(qū)動器IC Octal configurable Low/high side Driver RoHS:否 制造商:Micrel 產(chǎn)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(diào)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(qū)動器IC High Voltage 160V 500mA High Side RoHS:否 制造商:Micrel 產(chǎn)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(qū)動器IC High Voltage High-Side Driver RoHS:否 制造商:Micrel 產(chǎn)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。