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SA47321QJQ

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Automotive Power Management IC
Datasheet
SA47321QJQ Automotive Power Management IC Datasheet
Part number SA47321QJQ
Vin (min) (V) 3
Vin (max) (V) 40
Regulated outputs (#) 8
Step-down DC-DC converter 2
Step-up DC-DC converter /
LDO 6
Features ASIL-D, SPI interface, Diagnostics, Watchdog, Error monitor, Safe state control, Spread spectrum
Application EPS/EPB/OBC/BMS/ADAS/VCU/ZCU
Package QFN7×7-48
• 3V to 40V Input Voltage Range (6V to 40V if Boost Regulator is not used)
• Integrated Supplies including Pre-Regulator, Vcore Supply, StandBy-LDO, Post-LDO & Tracker
• Configurable Functional and Window Watchdog
• Provides Enable, Synchronization and a Voltage Monitor for an External Regulator.
• Independent Internal Voltage Monitoring Block
• Reset and Interrupt Output
• Two Safe State Outputs with Programmable Delay Time
• Function Safety Meets ISO 26262 ASIL-D
• 16-bit SPI Communication Interface
• Long Duration Timer (LDT)
• Error Signal Monitoring
• Multiple Wake-Up Sources
• Compact Package: QFN7×7-48

The SA47321 is a multi-output power supply management device which integrates a multi-channel power supply for automotive applications. The pre-regulator can support a wide input voltage range of 3V to 40V, and up to 2.5A output current. Fully integrated switching regulators and linear regulators can provide multiple output voltage rails, support low power mode and are available with various wake-up sources.

The SA47321 integrates safety functions, with two configurable fail-interrupt outputs which can meet ISO 26262 ASIL-D level.

The SA47321 is available in a compact QFN7×7-48 package.

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