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签到天数: 28 天 [LV.4]偶尔看看III
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General Description
}/ q `7 l3 E! ]# A0 N* Y* OThe ZCC6688 is a 3A Li-Ion battery charger. It utilizes
$ q6 o/ _2 N& ^, o/ |% s: O9 x* Fa 500KHz synchronous buck converter topology to
/ T5 Z: r0 H: T8 J" nreduce power dissipation during charging. Low power
9 H* t/ l% u0 P9 D% u* Rdissipation, an internal MOSFET allow a physically
/ x+ Z# A: M* v( Q7 Ksmall charger that can be embedded in a wide range
, @, ~0 \+ [ B Q, r5 _of handheld applications. The ZCC6688 includes 4 _4 |7 v) A3 _, l
complete charge termination circuitry, automatic
5 Q% V/ k$ g& i: K4 K+ K3 {# d( Y" Frecharge
3 a) c9 _; p" L7 L0 Z2 jand a ±1% 4.2V /8.4V /12.6V /16.8V float " m u/ o# e8 r7 B- a- h: J+ q" U
voltage. , x2 d; T: j) h* A) _; h$ H2 H
Battery charge current, charge timeout and end-of-
! o1 x# q9 m7 i" wcharge indication parameters are set with external : E1 U, ^$ s3 F8 z8 W* K
components. Additional features include shorted
; c: R5 z( i- V. {3 z; ]cell 2 V; q& O8 G; x7 d
detection; temperature qualified " g# e( ~( ], m; k
charging
( s' F5 n, J/ P, Band
0 \1 ?. N8 M. K9 C" {/ |overvoltage protection. The ZCC6688 is available
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low profile ESOP10 package. 7 n7 [" H2 W& U c
Features # |5 N% n; ]- X" U7 w! n0 G6 F
Input voltage range 4V~22V ) p$ K( W) G" o$ ?' l! ]- U0 S
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Dynamic input current allocation for maximum
% |, F# V" L0 V2 u/ o1 l/ z7 Kcharging rate / A+ R7 S0 b O3 H, R
7 @2 c, J y( H6 W- k, v0 U, V3.0A Maximum Charge Current
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No External MOSFETs and Blocking Diode
9 u; J5 c3 R% f$ H' WRequired
8 ^' T: y3 V6 H; |$ z- }
- j; {' o' X! j; ZEfficiency up to 90%
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$ E D% p+ D) e6 [3 ^ M1 sConstant-Current/Constant-Voltage Operation
+ n7 E& E: K1 m/ _0 V: Awith Thermal Regulation to Maximize Charge
( t& h1 ?' b. `6 ?. u0 zRate Without Risk of Overheating ( U8 ~- o$ N& F# {5 I/ b9 Q+ k$ K
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Optional Battery Temperature Monitoring Before
+ i. D) D. k! d$ B' _9 M1 O$ h ]+ u1 @and During Charge Automatic Sleep Mode for
9 U3 u9 H$ V9 rLow-Power
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Over Current Protection
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" q) O! U! t2 d" D( Q+ ZConsumption Available in ESOP10 6 p( z' s7 f& I$ P% S: Q
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RoHS Compliant and 100% Lead (Pb)-Free
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