EVAL6902D Datasheet, PDF (1/4 Pages) STMicroelectronics – L6902D 1A Constant current battery charger evaluation board

EVAL6902D
L6902D 1A Constant current battery charger
evaluation board
Data Brief
General description
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 (both 25V).
The external resistor divider (R1 and R2) 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 100mΩ
sense resistor R_sense.
The inductor saturation current and the forward
current of the schottky rectifier fit the current limit
setting.
Evaluation board
October 2006
Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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