4-Channel, Maximum 150mA/Ch Boost WLED Driver with 15000:1 Dimming Ratio and I2C, SGM37441Q P2P MP3364.
SGM37441Q.pdf优势替代
FEATURES
• 3.5V to 36V Input Voltage Range
• 4 Channels with Maximum 150mA per Channel
• Internal 100mΩ, 50V MOSFET
• Configurable fSW Up to 2.2MHz
• External Sync SW Function
• Multi-Dimming Operation Mode through
PWM Input, Including:
Direct PWM Dimming
Analog Dimming
Mixed Dimming with 25% or 12.5% Transfer Point
• 15000:1 Dimming Ratio during PWM
Dimming when fPWM ≤ 200Hz
• 200:1 Dimming Ratio during Analog
Dimming through PWM Dimming Signal Input
• Excellent EMI Performance, Frequency Spread Spectrum
• I2C Interface, 3 Selectable IC Addresses
• Phase Shift Function for PWM Dimming
• 2.5% Current Matching
• Cycle-by-Cycle Current Limiting
• Disconnect VOUT from VIN
• Optional: LED Current Can Automatically
Decrease at Higher Temperatures
• LED Short/Open, OTP, OCP, and Inductor
Short Protection
• Configurable LED Short Threshold
• Configurable OVP Threshold
• Fault Indicator Signal Output
• Available in a QFN-24 (4mmx4mm) Package
PIN CONFIGUTION
