Automotive Display LED-backlight Driver with Six 200mA Channels, SGM37461Q Replace LP8866.
SGM37461Q.pdfCROSS
FEATURES
• AEC-Q100 qualified for automotive applications:
– Device temperature grade 1:
–40°C to +125°C, TA
– Device HBM ESD classification level 2
– Device CDM ESD classification level C4B
• Input voltage operating range 3V to 48V
• Six high-precision current sinks
– Up to 200mA DC current for each current sink
– Current matching 1% (typical)
– Dimming ratio 32 000:1 using 152Hz LED
output PWM frequency
– Up to 16-bit LED dimming resolution with I2C,
or PWM input
– 8 Configurable LED strings configuration
• Auto-phase shift PWM dimming
• 12-bit analog dimming
• Up to 48V VOUT boost or SEPIC DC/DC controller
– Switching frequency 100kHz to 2.2MHz
– Boost spread spectrum for reduced EMI
– Boost sync input to set boost switching
frequency from an external clock
– Output voltage automatically discharged when
boost is disabled
• Extensive fault diagnostics
PIN CONFIGUTION
