4-Channel, Maximum 150mA/Ch Boost WLED Driver with 15000:1 Dimming Ratio and I2C, SGM37441Q P2P MP3364.
SGM37441Q.pdf優勢替代
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
