UB2012(2010) 查看數據表（PDF） - Unisonic Technologies

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UB2012
(Rev.:2010)

ADVANCED LINEAR CHARGE MANAGEMENT IC FOR SINGLE AND TWO-CELL LITHIUM-ION AND LITHIUM-POLYMER

Unisonic Technologies 

UB2012

Preliminary

LINEAR INTEGRATED CIRCUIT

„ TYPICAL APPLICATION CIRCUIT

DC+

GND

RSNS

0.2Ω

C2

10μF

Q1

2SB1151

R1

VCC

1kΩ

CC

COMP

SNS UB2012 BAT

VCC

TS

VSS

STAT

D1

R2

2kΩ

VCC

RT1

RT2

PACK+

C1

0.1μF

PACK-

TEMP

NTC

Battery

Pack

Figure 1. Low Dropout Single-or Two-Cell Li-Lon/Li-Pol Charger

FUNCTIONAL DESCRIPTION

The UTC UB2012 is designed for the applications of single or two-cell Li-Ion or Li-Pol batteries. Figure 1 is the

schematic of using this advanced linear charge controller with a PNP pass transistor. Figure 2 is the operation

flowchart of UB2012. Figure 3 shows the typical charge profile. Figure 4 is the application schematic of a charger

using P-channel MOSFET..

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

6 of 17

QW-R121-018 .b

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