1/2/3/4-Channel Max 160mA/Ch Boost WLED Controller with High Dimming Ratio | 3.5V to 40V Input Voltage (VIN) Range4 Channels with a Maximum of 160mA per ChannelConfigurable Switching Frequency (fSW) Up to 2.2MHz External Sync Switching (SW) FunctionPulse-Width Modulation (PWM) DimmingAnalog DimmingDeep Dimming Ratio Excellent EMI Performance and Frequency Spread Spectrum (FSS)Fixed 100µs Delay Time between LED Current Channels during PWM Dimming (Replaces Phase Shift)2.5% Current MatchingCycle-by-Cycle Current Limiting Disconnect Output Voltage (VOUT) from VINInput Over-Current Protection (OCP)LED String Open/Short ProtectionOver-Temperature Protection (OTP)LEDx Pin Short-to-GND ProtectionVOUT Short-to-GND ProtectionAbility to Disable LED4 if LED4 Is UnusedFault Indicator Signal OutputAvailable in a QFN-20 (3mmx4mm) Package