Wired Transceivers & Modems | NCV7471B
概览
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- Control Logic
- Ensures safe power−up sequence and the correct reaction to different supply conditions
- Controls mode transitions including the power management and wakeup treatment − bus wakeups, local wakeups (via WU pin) and cyclic wakeups (through the on−chip timer)
- Generates reset and interrupt requests - Serial Peripheral Interface
- Operates with 16−bit frames
- Ensures communication with the ECU’s microcontroller unit
- Mode settings, chip status feedback and watchdog are accessible through eight twelve−bits registers - 5 V VOUT Supply from a DC/DC Converter
- Can deliver up to 500 mA with accuracy of ±2%
- Supplies typically the ECU’s microcontroller - 5 V VOUT2 Low−drop Output Regulator
- Can supply external loads – e.g. sensors
- Controlled by SPI and the state machine
- Protected against short to the car battery - 11 V (NCV7471B) or 6.5 V (NCV7471C) V_MID Supply from a DC/DC Converter
- A High−speed CAN/CANFD Transceiver
- ISO11898−2: 2016 Compliant
- Communication speed up to 1 Mbps
- Specification for loop delay symmetry up to 2 Mbps
- TxD dominant time−out protection - Two LIN Transceivers
- ISO17987−4, LIN2.X and J2602 compliant
- TxD dominant time−out protection - Wakeup Input WU
- Edge−sensitive high−voltage input
- Can be used as a wake−up source or as a logical input polled through SPI - Protection and Monitoring Functions
- Monitoring of the main supply through the V_MID point
- Monitoring of VOUT supply output with programmable threshold
- VOUT2 supply diagnosis through SPI and interrupt
- Thermal warning and thermal shutdown protection
- Programmable watchdog monitoring the ECU software - NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
- These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
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