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參數(shù)資料
| 型號(hào)： | L9952GXPTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類(lèi)： | 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)： | 13/68頁(yè) |
| 文件大小： | 859K |
| 代理商： | L9952GXPTR |
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Description
L9952GXP
Doc ID 13518 Rev 5
2.12
V1, V2 fail
The V1, and V2 regulator output voltages are monitored.
In case of a drop below the V1, V2 – fail thresholds (V1,2 < 2V,typ for t > 2us), the V1,2 - fail
bits are latched. The fail bits are cleared by a dedicated SPI command.
If 4ms after turn on of the regulator the V1,2 voltage is below the V1,2 fail thresholds,
(independent for V1,2 ), the L9952GXP will identify a short circuit condition at the related
regulator output and the regulator will be switched off.
In case of a V1 failure the device enters VBAT - standby mode automatically.
In case of a V2 failure the SHT5V2 bit (SR0 Bit12) is set.
2.13
Low side driver outputs Rel1, Rel2
The outputs Rel1, Rel2 (RDSon = 2 Ω typ. @25 °C) are specially designed to drive relay
loads.
Typical relays used have the following characteristics:
Relay type 1:
–
closed armature: R = 160
Ω +10%, L= 300mH
–
open armature: R = 160
Ω +10%, L= 240mH
Relay type 2:
–
closed armature: R= 220
Ω +10%, L= 420mH
–
open armature: R= 220
Ω +10%, L= 330mH
The outputs provide an active output zener clamping (40V) feature for the demagnetisation
of the relay coil, even though a load dump condition exists. In case of watchdog failure the
relay drivers will be switched off and the low side driver control bits are cleared.
Note:
1
Due to relays bouncing, high dV/dt and/or dI/dt transients may occur on the low side driver
outputs. In case high currents are switched (for example window lift motor), due to parasitic
capacitive inductive coupling from load side of relays to the relays coils, the Absolute
Maximum Ratings of the Low Side driver outputs may be exceeded. In order to avoid this, it
is recommended to place a 10nF capacitor at the Rel1, Rel2 outputs to GND.
2
If a hard short circuit to VBAT is possible at the "Low Side Driver" outputs, an RC network is
required with TRC > 1s, R ≥ 1 Ω (see block diagram, the value is given for an output short
circuit of given di/dt = 5A/s).
2.14
PWM inputs
The inputs PWM 1,2 can be used to control the output drivers Out1..4 and OUT_HS with a
PWM signal. Each PWM input can be mapped individually to each of the above listed
outputs according to the SPI settings.
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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(lèi)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(lèi)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(lèi)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(chēng):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(lèi)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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