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參數(shù)資料
| 型號： | L9733XP |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Octal self configuring Low/High side driver |
| 中文描述： | 八路自我配置低/高邊驅(qū)動器 |
| 文件頁數(shù)： | 17/33頁 |
| 文件大?。?/td> | 466K |
| 代理商： | L9733XP |
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L9733
Functional description
17/33
4
Functional description
L9733 integrates 8 self-configuring outputs (OUT1-8) which are able to drive either
incandescent lamps, inductive loads (non-pwm'd, in pwm is necessary an external diode to
reduce flyback power dissipation), or resistive loads biased to Vbat ( low side configuration)
or to GND (high side configuration). These outputs can be enabled and disabled via the SPI
bus. Each of these outputs has a short circuit protection (with 0.8-2.4 Amps threshold)
selectable via SPI bus between a filtered switching OFF overcurrent protection or a linear
current limitation (default condition after power ON is switching OFF protection enabled).
An over-temperature protection as described in
Section 2.1
is available for each outputs.
When a high side configured output is commanded OFF after having been commanded ON,
the source voltage will go to (VGND - 15V). 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 (50 VDC minimum) due to the flyback of the inductive load.
Outputs 1-8 are able to drive any combination of inductive loads or lamps at one time.
Inductive loads for the L9733 can range from 35mH to a maximum of 325mH. The
recommended worst-case solenoid loads (at -40°C) are calculated using a minimum
resistance of 40
for each output. The maximum single pulse inductive load energy the
L9733 outputs is able to be safely handle is 20mJ at -40°C to 125°C (Worst-case load of
325mH & 40
).
4.1
Configurations for Outputs 1-8
The drain and source pins for each Output must be connected in one of the two following
configurations (see
Figure 6
).
4.1.1
Low Side Drivers
When any combination of Outputs 1-8 are connected in a low side drive configuration the
source of the applicable Output (Src1-8) shall be connected to ground. The drain of the
applicable Output (Drn1-8) shall be connected to the low side of the load.
4.1.2
High Side Drivers
When any combination of Outputs 1-8 are connected in a high side drive configuration the
Drain of the applicable Output (Drn1-8) shall be connected to Vbat. The source of the
applicable Output (Src1-8) shall be connected to the high side of the load.
4.2
Outputs 1-5
These five outputs can be used as either high or low side drives. The room temperature
Rdson of these outputs is 0.7
. A current limited (100μA max) voltage generator is
connected to Src 1-5 for open load and short to GND detection when a low side configured
output is commanded OFF. Another current limited (100μA max if VDrn 1-5 > 60%Vbat,
280μA max if VDrn 1-5 < 60%Vbat) voltage generator is connected to Drn 1-5 for open load
and short to Vbat detection when a high side configured output is commanded OFF.
Drain pins of Outputs 1-5 (Drn1-5) are connected to the drains of the N channel MOSFET
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相關(guān)代理商/技術(shù)參數(shù) |
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| L9733XPTR | 功能描述:低壓差穩(wěn)壓器 - LDO Octal self Config Low/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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| L9734 | 功能描述:低壓差穩(wěn)壓器 - LDO Octal self Config Low/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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| L9737 | 功能描述:低壓差穩(wěn)壓器 - LDO Octal self Config Low/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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| L9737TR | 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 Specific Functions Engine Control IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L9738 | 制造商:Leviton Manufacturing Co 功能描述: |
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