1-4节锂电池充电同步降压 内置mos IC

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General Description
" U. @2 |2 j1 A6 Z1 S$ i: CThe ZCC6688 is a 3A Li-Ion battery charger. It utilizes
% g) Q) V! O9 Ia 500KHz synchronous buck converter topology to
! C- @0 a2 C) zreduce power dissipation during charging. Low power
' _8 \  O& }) Ydissipation, an internal MOSFET allow a physically
small charger that can be embedded in a wide range
of handheld applications. The ZCC6688 includes
complete charge termination circuitry, automatic
' h4 r# N- s! n9 P. Y4 v. Trecharge and a ±1% 4.2V /8.4V /12.6V /16.8V float
voltage.
Battery charge current, charge timeout and end-of-
- H2 a+ x+ U3 W9 S. G/ H$ t" n8 z! Vcharge indication parameters are set with external
( l$ w5 C8 {2 Z9 N2 K' L. I$ Jcomponents. Additional features include shorted cell
detection; temperature qualified
charging and
overvoltage protection. The ZCC6688 is available in a
8 V* o5 U8 L9 M& Flow profile ESSOP10 package.
( G# T4 l& Q2 }" zFeatures
0 R4 @! D9 N# P' p" c Input voltage range 4V~22V
) Y* C0 N$ w- r7 H/ V) D  J Dynamic input current allocation for maximum
# O$ e# N3 A8 ^: acharging rate
+ o1 L& W1 D0 g0 z! ^* q8 x, c' B 3.0A Maximum Charge Current
 No External MOSFETs and Blocking Diode
6 k, J7 f$ C: G- rRequired
 Efficiency up to 90%
 Constant-Current/Constant-Voltage Operation
7 t2 D2 P8 g! Q0 t2 ?  Gwith Thermal Regulation to Maximize Charge
* z; c& O6 d: N5 ^' IRate Without Risk of Overheating
 Optional Battery Temperature Monitoring Before
: r& k% y* ]. R9 Aand During Charge Automatic Sleep Mode for
Low-Power
8 }' d: y3 P4 g$ m: Y Over Current Protection
 Consumption Available in ESSOP10
* d/ ~2 }* ?1 v9 ~% O, W RoHS Compliant and 100% Lead (Pb)-Free
/ W) T7 o$ {3 Z. y7 Q6 U3 k ZCC6688 V2.3.pdf (1020.45 KB, 下载次数: 0)

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helendcany

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Siweidianzi

helendcany 发表于 2020-4-8 18:06
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