EVAL-LT3964-1-AZ

EVAL-LT3964-1-AZ is an evaluation circuit that is a 36V synchronous dual LED driver with I2C featuring the LT®3964-1. It drives two channels of LEDs at 1A when VIN is between 9V and 36V. Its two channels can drive separate LED strings, which can have different currents, voltages, or dimming ratios. It can be controlled with I2C communications, or it can be run in nonI2C mode with proper ADDR pin settings. It is protected against both open and short LED conditions and reports the faults. In I2C mode, faults can be enabled or disabled. Up to 8 different EVAL-LT3964-1-AZ can be placed on the same I2C bus with unique addresses. A serial interface is available when connected to a DC2026C Linduino® One demo circuit.

• Operating input voltage PVIN range from 9 to 36V
• 2MHz switching frequency at R8 = 27.4Kohm, TA = 25°C
• VLED range from 2.5 to 7.7V at R10 = R14 = 1Mohm and R11 = R15 = 169Kohm, TA = 25°C
• 8.8V PVIN undervoltage lockout (falling) at R1 = 332Kohm, R2 = 51.1Kohm, TA = 25°C
• 10.6V PVIN turn-on voltage (rising) at R1 = 332Kohm, R2 = 51.1Kohm, TA = 25°C

附註

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