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General Description 5 w; [* G- t& e3 {8 c0 t
The ZCC6688 is a 3A Li-Ion battery charger. It utilizes + n' N: k: e6 R: C. o6 {
a 500KHz synchronous buck converter topology to
0 l# j9 x) h! I5 @6 Xreduce power dissipation during charging. Low power # D/ Y, ^& y3 ~
dissipation, an internal MOSFET allow a physically
3 A- g6 y/ ~( Z: \small charger that can be embedded in a wide range
7 w" g& ~, S- X' ]: N* {of handheld applications. The ZCC6688 includes 2 p. u3 O# e3 L- q; d5 O$ J
complete charge termination circuitry, automatic & k1 n# X9 ?% m# V+ n% m
recharge
: v7 z( [- r+ Y+ P. land a ±1% 4.2V /8.4V /12.6V /16.8V float " w) H* D P N; ^+ _" h
voltage.
: O6 Q5 [6 R; \5 U! T: M! vBattery charge current, charge timeout and end-of-
1 b% V# L9 O1 _2 ]% W. mcharge indication parameters are set with external
- {% z0 k8 ]. O1 Dcomponents. Additional features include shorted
% p+ L5 o Q; t W$ U. e! {; ncell 9 A- S# B2 s' q( X5 d. I3 \' s
detection; temperature qualified ( d# F' z/ t/ _6 f: B, @- h' O, l- s
charging . B. X q; l6 m! P' _8 M
and ( n$ n5 M! l* S
overvoltage protection. The ZCC6688 is available 2 D) Q: k9 I5 W) U
in a
" c# P. `8 ^" \# Blow profile ESOP10 package.
4 e! W" q8 ?+ f# C! aFeatures
7 h+ U* M. ]& V8 {* R Input voltage range 4V~22V
) x. E9 K0 F. Q
6 x. V* q, [8 B2 W2 x7 x+ l6 b; LDynamic input current allocation for maximum
3 G+ m: ^ s' Lcharging rate 8 M: b! W/ c0 c5 h2 h
7 d- r2 y: F: U" r% Y$ T3.0A Maximum Charge Current " W5 s5 I" _( m( H* L1 k3 }" Z! b
# \! J' X" I9 {; g$ ?) P
No External MOSFETs and Blocking Diode ! H' K- X, w6 }: w# H- {3 _
Required
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Efficiency up to 90% : \0 V# {& g: B7 ]: t
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Constant-Current/Constant-Voltage Operation 6 l }& `% H1 i; N o
with Thermal Regulation to Maximize Charge 9 d f1 \" U: Y/ ?
Rate Without Risk of Overheating
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3 @1 I! K4 G& xOptional Battery Temperature Monitoring Before
1 i, x! D) S# O ?6 e- Sand During Charge Automatic Sleep Mode for
6 {# ^- O* ~4 ~$ P& h/ O' x2 N/ tLow-Power ) y& h9 F" N8 A8 [ x. B6 G" u
4 U; J s, B. \, D# O* W
Over Current Protection b' F: F; [& P+ \
# Z# r0 ]( s. q( Q, gConsumption Available in ESOP10
5 ?, z5 M0 ]% Z2 }8 O! |9 j
& d c5 v7 C, H; O5 kRoHS Compliant and 100% Lead (Pb)-Free" l, M0 P, S' D: R& C# `
0 ?$ M& `* t3 n+ E* _# t
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+ Q3 T9 a. C7 V. o! h |. l
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