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參數(shù)資料
| 型號(hào)： | L9950TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| 封裝： | ROHS COMPLIANT, SOP-36 |
| 文件頁數(shù)： | 14/39頁 |
| 文件大?。?/td> | 620K |
| 代理商： | L9950TR |
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L9950 - L9950XP
Application information
Doc ID 10311 Rev 10
3.5
Overvoltage and under voltage detection
If the power supply voltage VS rises above the overvoltage threshold VSOV OFF (typical
21 V), the outputs OUT1 to OUT11 are switched to high impedance state to protect the load.
When the voltage VS drops below the under voltage threshold VSUV OFF (UV switch OFF
voltage), the output stages are switched to the high impedance to avoid the operation of the
power devices without sufficient gate driving voltage (increased power dissipation). If the
supply voltage VS recovers to normal operating voltage the outputs stages return to the
programmed state (input register 0: bit 20=0).
If the under voltage/overvoltage recovery disable bit is set, the automatic turn-on of the
drivers is deactivated. The microcontroller needs to clear the status bits to reactivate the
drivers. It is recommended to set bit 20 to avoid a possible high current oscillation in case of
a shorted output to GND and low battery voltage.
3.6
Temperature warning and thermal shutdown
If junction temperature rises above Tj TW a temperature warning flag is set and is detectable
via the SPI. If junction temperature increases above the second threshold Tj SD, the thermal
shutdown bit will be set and power DMOS transistors of all output stages are switched off to
protect the device. In order to reactivate the output stages the junction temperature must
decrease below Tj SD - Tj SD HYS and the thermal shutdown bit has to be cleared by the
microcontroller.
3.7
Open-load detection
The open load detection monitors the load current in each activated output stage. If the load
current is below the open load detection threshold for at least 1 ms (tdOL) the corresponding
open load bit is set in the status register. Due to mechanical/electrical inertia of typical loads
a short activation of the outputs (e.g. 3ms) can be used to test the open load status without
changing the mechanical/electrical state of the loads.
3.8
Over load detection
In case of an over-current condition a flag is set in the status register in the same way as
open load detection. If the over-current signal is valid for at least tISC = 32 s, the over-
current flag is set and the corresponding driver is switched off to reduce the power
dissipation and to protect the integrated circuit. If the over-current recovery bit of the output
is zero the microcontroller has to clear the status bits to reactivate the corresponding driver.
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| L9953XPTR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9953TR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9953 | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| LA1060 | SPECIALTY CONSUMER CIRCUIT, PSIP9 |
| LA1061M | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L9950XP | 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 |
| L9950XPTR | 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 |
| L9951 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 REAR 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 |
| L9951_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Rear door actuator driver |
| L-995-12 | 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 #12 |
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