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參數(shù)資料
| 型號(hào)： | L9952GXPTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36 |
| 封裝： | LEAD FREE, SSO-36 |
| 文件頁(yè)數(shù)： | 8/68頁(yè) |
| 文件大?。?/td> | 859K |
| 代理商： | L9952GXPTR |
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Description
L9952GXP
Doc ID 13518 Rev 5
2.5
Wake up inputs
The de-bounced digital inputs WU1...WU4 can be used to wake up the L9952GXP from
standby modes. These inputs are sensitive to any level transition (positive and negative
edge)
For static contact monitoring, a filter time of 64 s is implemented at WU1-4. The filter is
started when the input voltage passes the specified threshold. At Vin > 1V and Vin < (Vs –
2V), a Wake-up request is processed. During Wake-up request, the internal oscillator and
other circuit blocks are activated in order to allow more accurate monitoring of the inputs.
In addition to the continuous sensing (static contact monitoring) at the wake up inputs, a
cyclic wake up feature is implemented. This feature allows periodical activation of the wake-
up inputs to read the status of the external contacts. The periodical activation can be linked
to Timer 1 (0.5sec to 4.0sec in 0.5sec steps) or Timer 2 (50ms). The input signal is filtered
with a filter time of 16us after a programmable delay (80us or 800us). A Wake-up will be
processed if the status has changed versus the previous cycle.
The Outputs OUT_HS and OUT1-4 can be used to supply the external contacts with the
timing according to the cyclic monitoring of the wake-up inputs.
If the wake-up inputs are configured for cyclic sense mode (Icxx in control register 2), the
same input filter timing (Timer1 or Timer2) and the corresponding input filter delay (control
register 2) must be used for the HS Outputs (Hsxx in control register 0) which supply the
external contact switches.
In Standby mode, the inputs WU1-4 are SPI configurable for pull-up or pull-down current
source configuration according to the setup of the external contacts (pull-up for active low
contacts, pull-down for active high contacts). In active mode the inputs have a pull down
resistor of 100 kOhm (typ).
In Active mode, the input status can be read by SPI (Status Register 0). Static sense should
be configured (Control Register 2) before the read operation is started (In cyclic sense
configuration, the input status is updated according to the cyclic sense timing; Therefore,
reading the input status in this mode may not reflect the actual status).
2.6
Hall sensor ports: WU3,4, Dig_Out 3,4
Applications like Hall sensor outputs need high processing speed. The 12V signals
connected to the wakeup inputs WU3 and WU4 can be looped through to the digital outputs
Dig_Out 3 and Dig_Out 4 (5V) in order to avoid read out of the input state by SPI.
The setup is programmable by SPI.
The open load states of the High Side Drivers OUT1 and OUT2 can be looped through the
digital outputs Dig_Out3 and Dig_Out4 without delay. In addition, the status of OUT1 and
OUT2 can be accessed through the SPI interface. This feature is intended for 2-pin HALL
sensors. Open Load information is only valid during ON state.
The Open Load threshold at pins OUT1...4 can be switched from IOLD1 = 2mA to
IOLD2 = 8 mA via SPI .
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L9952XP | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DOOR ACTUATOR DRIVER 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 |
| L9952XPTR | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DOOR ACTUATOR DRIVER 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 |
| L9953 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Door actuator DRVR 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 |
| L-995-38 | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:NylaKrimp? Funnel Entry Ring Tongue Terminal for 4/0 AWG Wire, Stud #9 |
| L9953LXP | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DOOR ACTUATOR DRVR 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 |
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