EVAL6902D

EVAL6902D is a evaluation board for L6902D 1A constant current battery charger. The L6902D evaluation board integrates the step down switching regulator with adjustable current limit L6902D as well as the external components required for a typical application. The input voltage of the application board can range from 8V up to 25V due to the rated voltage of the input capacitor and the schottky rectifier repetitive peak reverse voltage. The external resistor divider sets the output voltage of the application board to 3.3V. A different output voltage can be regulated from 1.235V up to 10V, which is the rated voltage of the output capacitor. A current limit of 1A is programmed by the 100mohm sense resistor Rsense. The inductor saturation current and the forward current of the schottky rectifier fit the current limit setting.

• Up to 1A output current
• Operating input voltage from 8V to 25V
• Precise 3.3 V (±2%) reference voltage
• 5% output current accuracy
• Output voltage adjustable from 1.235V to 10V
• 250KHz internally fixed frequency
• Voltage feedforward, thermal shutdown
• Zero load current operation
• Adjustable current limit
• Protection against feedback Disconnection

Applications

Power Management