JYE Tech JYE118 Control

DN118-01v01

JYE118

Li-ion Battery Charger with Switch

Features

Ø Built with LTC4054 or compatible.
Ø Automatic battery switch
Ø Programmable Charge Current Up to 800mA
Ø Standard 0.1” pin pitch
Ø Only 0.5” X 0.4” in size
Ø Maximum working current: 800mA when source from Vin.

1A when source from battery.

Schematic

Fig. 1

Connection

Please see Fig. 2 for correct connection. Do not apply voltage higher than 6.5V to the board!

Programming Charge Current

Charge current can be set by a resistor
between PROG pin and ground. The resistor can
be calculated by the following equations:

RPROG = 1000/ ICHR

Please note that a on-board 10K resistor (R2) has
been installed between PROG pin and ground,
which sets charge current to 100mA. If larger
charge current is required an external resistor (Rc

in Fig. 2) can be added. Calculate Rc by RPROG =
Rc // R2. Maximum charging current is 800 mA.

Revision History

Version

01 2015.12.20 First created

Date Descriptions

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Fig. 2

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