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参数资料
| 型号： | L9952GXPTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36 |
| 封装： | LEAD FREE, SSO-36 |
| 文件页数： | 5/68页 |
| 文件大小： | 859K |
| 代理商： | L9952GXPTR |
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L9952GXP
Description
Doc ID 13518 Rev 5
2.3
Wake up events
A wake-up from standby mode will switch the device to active mode. This can be initiated by
one or more of the following sources:
●
Change of the LIN state at LIN bus interfaces
●
A current at the INH pin (I
≥200uA) controlled by the CAN-transceiver (the CAN
transceiver is not a part of the IC).
●
Positive/negative edge at wake up pins WU1...WU4 -> change of level after going into
stand-by
●
Change of open-load state at OUT1 to 4
●
SPI access in V1-standby mode (CSN is low and first rising edge on CLK)
All wake-up events (except wake-up by LIN, INH or SPI from V1standby mode) generate a
Reset pulse (NReset low for 2ms).
Wake-up events from V1standby by LIN, INH or SPI do not cause a Reset and the Reset
generation is blocked for 2ms, i. e. a watchdog failure during this timeframe will not cause a
reset.
Table 3.
Wake up events
Wake up source
Description
LIN
Always active
INH
Always active
WU1...4
Can be individually disabled via SPI
Open Load at HS outputs
Can be individually disabled via SPI
SPI Access
Always active
(except in VBAT - standby mode)
High level at PWM2 input
VPWM2 > 9V (1)
1.
Only if internal oscillator is running (e. g. in cyclic sense configuration or after wake-up request).
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