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L99PM72PXP bảng dữ liệu(PDF) 2 Page - STMicroelectronics

tên linh kiện L99PM72PXP
Giải thích chi tiết về linh kiện  Advanced power management system IC with embedded LIN and high speed CAN transceiver supporting CAN Partial Networking
PDF  128 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99PM72PXP bảng dữ liệu(HTML) 2 Page - STMicroelectronics

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Contents
L99PM72PXP
2/128
Doc ID 023553 Rev 3
Contents
1
Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2
Detailed description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1
Voltage regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1.1
Voltage regulator: V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1.2
Voltage regulator: V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1.3
Increased output current capability for voltage regulator V2 . . . . . . . . . 14
2.1.4
Voltage regulator failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.5
Voltage regulator behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2.1
Active Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2.2
Flash Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2.3
SW-Debug Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.2.4
V1_standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.2.5
Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.2.6
VBat_standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.2.7
Wake up from Standby Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.2.8
Wake up inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.2.9
Cyclic contact supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.2.10
Timer interrupt / wake-up of microcontroller by timer . . . . . . . . . . . . . . . 22
2.3
Functional overview (truth table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.4
Configurable window watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4.1
Change watchdog timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.5
Fail Safe Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.5.1
Single failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.5.2
Multiple failures – entering forced VBat_standby Mode . . . . . . . . . . . . . . . 30
2.6
Reset output (NRESET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.7
Operational amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.8
LIN Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.8.1
Error handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.8.2
Wake up (from LIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.8.3
LIN Pull-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.9
High speed CAN bus transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34



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