UC2909-EP

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SLUSA72 – JULY 2010

APPLICATION INFORMATION

A block diagram of the UC2909 is shown on the first page, while a typical application circuit is shown in Figure 3.

The circuit in Figure 3 requires a DC input voltage between 12 V and 40 V.

The UC2909 uses a voltage control loop with average current limiting to precisely control the charge rate of a

lead-acid battery. The small increase in complexity of average current limiting is offset by the relative simplicity of

the control loop design.

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Product Folder Link(s): UC2909-EP