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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 20/68頁 |
| 文件大?。?/td> | 859K |
| 代理商： | L9952GXPTR |
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L9952GXP
Protection and diagnosis
Doc ID 13518 Rev 5
3.4
High side driver outputs
The component provides a total of 4 high side outputs Out1...4, (7
Ω typ. @ 25C) to drive
e.g. LED' s or hall sensors and 1 high side output OUT_HS with 1
Ω typ. @ 25 C).
The high side outputs are protected against
●
Over- and under voltage
●
Overload (short circuit)
●
Over temperature with pre warning
If the output current exceeds the current shutdown threshold the output transistor is turned
off and the corresponding diagnosis bit of the output is set.
The switches are automatically disabled in case of reset condition, Vs-under, Vs-over
voltage or thermal shutdown (TSD1&2).
For OUT_HS an auto recovery feature is available in active mode.
If the OUT_HS output current exceeds the current shutdown threshold, the output transistor
is turned off and the corresponding diagnosis bit of the output is set.
Via SPI command the auto recovery feature can be enabled in order to restart the driver in
case of over current shutdown. This over current recovery feature is intended for loads
which have an initial current higher than the over current limit of the output (e.g. Inrush
current of cold light bulbs).
The device itself can not distinguish between a real overload and a non linear load like a
light bulb. A real overload condition can only be qualified by time. As an example, the micro
controller can switch on light bulbs by setting the over current recovery bit for the first 50ms.
After clearing the recovery bit, the output will be automatically disabled if the overload
condition still exists.
The status of all high side outputs (over-current, open load) can be monitored by SPI
interface.
In case of a watchdog failure, the high side drivers are switched off. The control bits are not
cleared, i.e. the drivers will go to the previous state once the watchdog failure condition
disappears.
ESD structures are configured for nominal currents only. If external loads are connected to
different grounds, the current load must be limited to this nominal current.
Note:
Loss of ground or ground shift with externally grounded loads.
3.5
Low side driver outputs Rel1, Rel2
The outputs provide an active output zener clamping feature for the demagnetisation of the
relay coil, even though a load dump condition exists. For safety reasons the relay drivers
are linked with the Watchdog: in case of failure, or missing trigger signal the relay drivers will
switch off.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L9952XP | 功能描述:馬達/運動/點火控制器和驅動器 DOOR ACTUATOR DRIVER RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L9952XPTR | 功能描述:馬達/運動/點火控制器和驅動器 DOOR ACTUATOR DRIVER RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L9953 | 功能描述:馬達/運動/點火控制器和驅動器 Door actuator DRVR RoHS:否 制造商:STMicroelectronics 產品: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/運動/點火控制器和驅動器 DOOR ACTUATOR DRVR RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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