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參數(shù)資料
| 型號(hào)： | L9950XPTR |
| 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, SSOP-36 |
| 文件頁數(shù)： | 13/39頁 |
| 文件大?。?/td> | 620K |
| 代理商： | L9950XPTR |
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Application information
L9950 - L9950XP
Doc ID 10311 Rev 10
3
Application information
3.1
Dual power supply: VS and VCC
The power supply voltage VS supplies the half bridges and the highside drivers. An internal
charge-pump is used to drive the highside switches. The logic supply voltage VCC (stabilized
5 V) is used for the logic part and the SPI of the device.
Due to the independent logic supply voltage the control and status information will not be
lost, if there are temporary spikes or glitches on the power supply voltage. In case of power-
on (VCC increases from under voltage to VPOR OFF = 4.2 V) the circuit is initialized by an
internally generated power on reset (POR). If the voltage VCC decreases under the
minimum threshold (VPOR ON = 3.4 V), the outputs are switched to tristate (high impedance)
and the status registers are cleared.
3.2
Standby mode
The standby mode of the L9950 is activated by clearing the bit 23 of the Input Data
Register 0. All latched data will be cleared and the inputs and outputs are switched to high
impedance. In the standby mode the current at VS (VCC) is less than 6 A (50 A) for
CSN = high (DO in tristate). By switching the VCC voltage a very low quiescent current can
be achieved. If bit 23 is set, the device will be switched to active mode.
3.3
Inductive loads
Each half bridge is built by an internally connected highside and a lowside power DMOS
transistor. Due to the built-in reverse diodes of the output transistors, inductive loads can be
driven at the outputs OUT1 to OUT6 without external free wheeling diodes. The highside
drivers OUT7 to OUT11 are intended to drive resistive loads. Hence only a limited energy
(E<1 mJ) can be dissipated by the internal ESD diodes in freewheeling condition. For
inductive loads (L>100 H) an external free wheeling diode connected to GND and the
corresponding output is needed.
3.4
Diagnostic functions
All diagnostic functions (over/open load, power supply over-/undervoltage, temperature
warning and thermal shutdown) are internally filtered and the condition has to be valid for at
least 32 s (open load: 1 ms, respectively) before the corresponding status bit in the status
registers will be set. The filters are used to improve the noise immunity of the device. Open
load and temperature warning function are intended for information purpose and will not
change the state of the output drivers. On contrary, the overload and thermal shutdown
condition will disable the corresponding driver (overload) or all drivers (thermal shutdown),
respectively. Without setting the over-current recovery bits in the Input Data register, the
microcontroller has to clear the over-current status bits to reactivate the corresponding
drivers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L9950 | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9950TR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9953XPTR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9953TR | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| L9953 | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| L9951TR | 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 |
| L9951XP | 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 |
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