Specifications

UC864-E/G/WD/WDU Product Description

80281ST10034a Rev. 4 – 2009-06-24

3.11 Embodied Battery charger

The battery charger is suited for 3.7V Li-Ion rechargeable battery (suggested capacity

500-1000mAH). The Charger needs only a CURRENT LIMITED power source input

and charges the battery directly through VBATT connector pins.

Battery charger input pin

CHARGE

Battery pins

VBATT, GND

Battery charger input voltage min

5.0 V

Battery charger input voltage typ

5.5 V

Battery charger input voltage max

7.0 V

Battery charger input current max

400mA

Battery type

Li-Ion rechargeable

WARNING:

If embodied battery charger is used, then a LOW ESR capacitor of at least 100μF must

be mounted in parallel to VBATT pin.

WARNING:

When power is supplied to the CHARGE pin, a battery must always be connected to

the VBATT pin of the UC864 family.