1 Features
• AEC-Q100 qualified for automotive applications:
– Device temperature grade 1: –40°C to 125°C
ambient operating temperature
– Device HBM classification level H1C
– Device CDM classification level C3
• Rail to rail operation
• Bidirectional signal path
• Low on-resistance: 7Ω
• Wide supply range: 2V to 5.5V
• -40°C to +125°C Operating temperature
• Break-before-make switching
• SN4599-Q1 a direct replacement for NLAS4599-Q1

2 Applications
• Analog and digital switching
• I2C and SPI bus multiplexing
• Advanced driver assistance systems (ADAS)
• Body electronics and lighting
• Infotainment and cluster
• Zonal architecture
• Body control modules
• Battery management systems
• Telematics
• Automotive head unit

3 Description
The SN4599-Q1 is a general purpose complementary
metal-oxide semiconductor (CMOS) single-pole
double-throw (SPDT) switch. The SN4599-Q1
switches between two source inputs based on the
state of the SEL pin. Wide operating supply of 2V
to 5.5V allows for use in a broad array of automotive
applications. The device supports bidirectional analog
and digital signals on the source (Sx) and drain (D)
pins ranging from GND to VDD.