HB6298A-2009 반도체 회로 부품 판매점
Switchmode Single-Cell/Two-Cell Li-ion/Li Polymer Battery Charger
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 Huatai Electronics |
Huatai Electronics
HB6298A-2009.12.28
Switchmode Single-Cell/Two-Cell Li-ion/Li Polymer Battery Charger
1、 HB6298A functions
1.1、Features
● High conversion efficiency charger for
1-cell/2-cell Li-ion/Li polymer battery
● 0.5％ voltage accuracy
● Full charged voltage trimming by external
resistors
● Build-in battery detection
● Integrated power MOSFET
● Soft starting
● 300kHz PWM Oscillator frequency
● Programmable charge current up to 1.5A
● Reverse leakage protection prevents
battery drainage
● NTC Thermistor interface for battery
temperature monitor
● Status outputs for LED
● Cycle-by-cycle current limit, charge
current thermal foldback , short circuit
protection
● 18V absolute maximum voltage rating on IN
pins
● Ambient temperature range: -20℃～70℃
2、 Typical application circuit
1.2、Applications
● Handheld devices, include medical
handhelds
● Portable-DVD，PDA，cell phones and smart
phones
● Portable instruments
● Self-charging battery packs
● Stand-alone chargers
1.3、Introduction
HB6298A is an integrated 1-cell/2-cell
Li-ion/Li polymer switch-mode charge management
device, targeted at a wide range of portable
applications. HB6298A offers integrated power FET,
high-accuracy current and voltage regulation,
charge preconditioning, charge status, and charge
termination, in a small TSSOP20 package. HB6298A
charges the battary in three phase: preconditioning,
constant current(CC), and constant voltage(CV).
The charge current is programmable with an
external resistor up to 1.5A. HB6298A features
cycle-by-cycle current limit, charge current
thermal foldback and short circuit protection to
guarantee safe operation. Additional features
include NTC thermistor interface to monitor
the battery temperature.
Figure2.1、HB6298A application circuit
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Huatai Electronics
3、HB6298A function block
HB6298A-2009.12.28
HB6298A
VIN
VIN
VCC
UVLO
POR
VTSB
VCC-6
REFERENCE
REF1
REF2
REF3
BAT
2.1V
OUT
OUT
V(3.0A)
POR/SUSPEND/FAULT
PKILim
Q SET S
Q CLR R
OSC
SNS
RAMP
CA
BAT
EA
REF1
VA VTRIM
CHARGE
2.1V
Vrch
CC
Vshort
CONTROL
LOGIC
ISET 1
CURRENT
REFERENCE
TS
TTC
SLEEP
GND
NTC
interface
Over Tem
TIMER CLK
Clock
Term_Det
CURRENT
SENSE
ISET 2
STAT1
STAT2
CELL
Figure3.1、HB6298A function bock
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제조업체: Huatai Electronics
( huatai )
HB6298A-2009 battery
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
HB6298A-2009
Switchmode Single-Cell/Two-Cell Li-ion/Li Polymer Battery Charger - Huatai Electronics
