Analog Devices LT8376 | Demoboard EVAL-LT8376-AZ

Beschreibung

Evaluation board EVAL-LT8376-AZ is a 60V, 2A synchronous Buck LED driver featuring the LT8376. EVAL-LT8376-AZ drives a single string of LEDs up to 36V at 1.5A when VIN is between 43V and 57V. EVAL-LT8376-AZ has an undervoltage lockout (UVLO) set at 40V with 2V hysteresis for turn-on. EVAL-LT8376-AZ runs at 350kHz switching frequency and features optional spread spectrum modulation (SSFM). With SSFM enabled, LT8376 modulates its switching frequency from fSW to fSW + 25% to reduce EMI emissions.The LT8376 has an input voltage range of 3.6V to 60V. LT8376 has internal, synchronous 60V switches for high efficiency and small size. LT8376 has an adjustable switching frequency between 200kHz and 2MHz. The LT8376 can be synchronized with an external clock source or configured with SSFM enabled for low EMI. EVAL-LT8376-AZ includes a SYNC/SSFM jumper to configure the LT8376 for either external frequency synchronization, SSFM enabled for low EMI, or set to normal operation with SSFM disabled.

Eigenschaften

• ±1.5% LED Current Regulation
• ±2% Output Voltage Regulation
• 5000:1 PWM Dimming at 100Hz
• 128:1 Internal PWM Dimming
• Spread-Spectrum Frequency Modulation
• Silent Switcher® Architecture for Low EMI
• 3.6V to 60V Input Voltage Range
• 0V to 60V LED String Voltage
• 3A, 60V Internal Switches
• 200kHz to 2MHz with SYNC Function
• 99.9% Maximum Duty Cycle
• 20:1 Analog or Duty Cycle LED Current Control
• Open/Short LED Protection and Fault Indication
• Accurate LED Current Sense with Monitor Output
• Programmable UVLO
• Thermally Enhanced 28-Lead (4mm × 5mm) LQFN

Typische Anwendungen

• Industrial and General Purpose Lighting, Automotive Lighting

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers