UB2012XG-S08-R datasheet(9/17 Pages) UTC

部件名	UB2012XG-S08-R

功能描述	ADVANCED LINEAR CHARGE MANAGEMENT IC FOR SINGLE

PDF	17 Pages

Scroll/Zoom	100%

制造商	UTC [Unisonic Technologies]

网页	http://www.utc-ic.com

标志

9 / 17 page

UB2012

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

9 of 17

www.unisonic.com.tw

QW-R121-018 .b

APPLICATION INFORMATION(Cont.)

CURRENT REGULATION PHASE

When the battery-pack voltage is less than the regulation voltage, VO(REG), the current is regulated by the UTC

UB2012

. This advanced linear charge management IC monitors charge current at the SNS input by the voltage drop

across a sense-resistor, RSNS, in series with the battery pack. In current sensing configuration (Figure 5), RSNS is

between the VCC and SNS pins. Charge-current feedback, applied through pin SNS, maintains a voltage of VSNS

across the current sense resistor. The following formula calculates the value of the sense resistor:

O(REG)

(SNS)

SNS

(1)

Where IO(REG) is the desired charging current.

UB2012XG-S08-R 数据表(PDF) 9 Page - Unisonic Technologies