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Garmin MC34676B User Manual

Page 5

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Using the Dual 28V Input Voltage Charger with Linear Regulator,

Rev. 1.0

Freescale Semiconductor

5

Component Selection

5.5

End-of-charge current setting resistors R10 and R11

The end-of-charge (EOC) current for both the AC charger and the USB charger can be set by the resistors R10 and R11.

On the evaluation board, two resistors with one pin header jumper are used for the user to conveniently configure
different EOC current values.

Table 3

shows the EOC current with the different settings of pin header J12.

Open

Open

400mA

Short

Open

150mA

Open

Short

150mA

Short

Short

300mA

Table 3. The EOC Current Settings

J12

Charge Current

Open

10mA

Short

80mA

Table 2. The USB CC-mode Charge Current Settings