3节锂电池同步升压充电芯片带NTC-ZCC6983

四维电子

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" t: x* j0 H* T# l1 \特性
$ V# J* q6 C( k" o■ 3.0V to 9V Operating Input Voltage
' f7 Y: c9 @. ^* }& T8 d■ Up to 26V Sustainable Voltage
■ Up to 1A Configurable Charge Current for Battery
with 3 Cells in Series
■ Configurable Input Voltage Limit
■ Charge Status Indication
■ Constant Voltage Selectable
' x6 `# `! B7 @1 q: T■ Programmable Charge Timeout
" \% Z5 `: W. u  g5 q■ Thermal Regulation Protection
■ External Shutdown Function
1 W) ~. b. S4 @) @■ Input Voltage UVLO and OVP
# I/ B$ M( V# M; o, W■ Over Temperature Protection
■ Output Short Cir cuit Protec tion Normal
4 W5 B$ r- V# `% mSynchronous Boost Operation When Battery
Removed
应用
■ Power Bank
■ Cellular Telephones,MP3Players,MP4 Players
2 H0 q2 G/ J7 o) l' V( u■ PSP Game Players,NDS game Players
■ Notebook
描述
ZCC6983 is a highly integrated synchronous boost
charger IC for Lithium-ion batteries with four cells in
series . The charge current up to 2A can be
+ \' ~9 C9 A7 _+ r( E$ |0 ]. ~: ]4 Yprogrammed by using the external resistor for different
; w/ Q$ T6 M7 E& f/ t: _portable applications.
! p- q0 R, e  V5 v6 VRobust protections include input over-voltage
) h7 `1 b" O( w: [7 A5 bprotection (OVP), battery OVP, battery short protection,
thermal shut down, battery temperature monitor, a
configurable timer to prevent prolonged charging of a
dead battery.
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Dollche

输入电容尽量靠近芯片的 VIN 端使芯片的输入端，减小输入纹波,CIN,COUT 选择贴片电容