UB264A

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

10 of 10

www.unisonic.com.tw

QW-R502-832.A

TYPICAL APPLICATION CIRCUIT(Cont.)

(4) 4-serial cell (Overheat Protection via PTC)

Notes:

1.

The above connection example will not guarantee successful operation. Perform thorough evaluation

using the actual application.

2.

A pull-down resistor is included in the CTL pin. To perform overheat protection via the PTC in the UTC

UB264A Series, connect the PTC before connecting batteries.

3.

UB264A Series.

4.

Since “H” may be output at CO transiently when the battery is being connected, connect the positive

terminal of BAT1 last in order to prevent the three terminal protection fuse from cutoff.

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.