General Description

The FS5600 integrates a battery connected DC-DC controller with external FETs

and a battery connected DC-DC converter with internal FETs. It also offers functional

safety features such as independent voltage monitors, windowed watchdog timer, I/O

monitoring via ERRMON and FCCU, and built-in self-test.

Features and Benefits

• 2 x High-Voltage Buck Converters:

– Buck Controller - External FETs - 900 mA gate drive - up to 15 A load capability

– Buck Regulator - Internal FETs - 3 A+ load capability

– ±2 Output Accuracy

– 250 kHz to 3 MHz switching frequency

• High-efficiency PFM mode

• Safety Features:

– Available in Enhanced ASIL B, ASIL B, and QM variations

– 2 internal and up to 4 high-accuracy external voltage monitors

– Windowed Watchdog Timer

– ERRMON and FCCU monitoring

– 2 x PGOOD and 1 x FS0B outputs

– ABIST and LBIST for latest failure check

• GPIOs for seamless operation with PF PMICs

• Rated from –40 °C to 150 °C TJ

• 32-Ld 5 mm x 5 mm QFN

• AEC-Q100 Grade-1 Qualified

Applications

QM to ASIL D automotive applications such as:

• Infotainment / Cluster / Driver Awareness

• Telematics

• V2X

• Radar

• Vision

• ADAS

• Sensor fusion

Additional safety mechanisms may be needed for ASIL D compliance in the system level.

FS5600 is developed to meet ASIL B requirements.