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耐压100V同步降压最大5A输出电流 ZCC1005

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    2022-8-5 15:55
  • 签到天数: 11 天

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    1#
    发表于 2022-11-15 17:50 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式

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    本帖最后由 Heaven_1 于 2022-11-15 18:43 编辑
    # J" s& P4 k# r  |" r1 H
    ' k9 S6 p% f( g4 cFeatures* l) @1 ^7 r$ Q# p; {
     9V to 100V input voltage range& Z5 _- P$ D- x% x" s  q
     1.5A/5A continuous output current. |2 G: F1 ]2 o% ~5 y0 V
     95% Peak Efficiency1 I4 n3 K! ^4 }1 G
     400μA operating quiescent current
    0 |: W" g2 P9 f  R. E/ S 100V 400-mΩ high-side MOSFET
    . J8 D4 q9 g, q7 X Peak Current mode control
    ' {0 y: t+ t4 ?/ n9 z: M2 r0 z9 l1 W 150 kHz Fixed Frequency  \6 N0 z) n. K
     Internal compensation for ease of use
    % j; f% c! Q4 ?$ E8 K' H Up to 92% duty cycle& T, {; t9 u* K; p  C* F& o
     0.8V voltage reference
    - ^2 V6 b  e& L' w+ ? 1μA shutdown current
    5 Q. E. L& D( _+ m7 Q 3A/6A cycle-by-cycle current limit
    5 V& V7 i3 I! M. |. ` 150ms Hiccup mode short circuit protection  b! Z$ y5 i+ Z4 M6 y+ P/ |
    Function
    1 b9 R+ K0 L) c  @& ^: V Thermal shutdown Function
    $ F! V1 o. B- m+ \4 v ESOP-8 package
    % w3 K5 k& }, B; _" n" F7 WApplications
    % C, |& Q( y/ d/ d Charger in vehicle
    0 l) `5 U( m1 Q3 o+ G Battery Chargers% m9 u1 [* [; @* W% ~7 w
     Power adapter8 K7 t5 ^! E3 p2 T8 O* T
    Typical Application, l! n% z/ d' N; b
    Description6 X$ g) ^% Y- X: g. X
    The ZCC1005 is a high voltage, non-synchronous- r2 J7 [& |( G1 _  M1 c
    step-down converter operates over a wide range3 D7 s  a0 C4 [6 x
    input voltage! p3 D9 P2 @6 I8 T: m- X1 G8 V
    9V to 100V. The ZCC1005
    9 }0 l5 G( ^( ]" \! s9 Yintegrates a 100-V 400-mΩ high-side MOSFET.
    8 l  W( M/ H+ f3 T, t; P- p  NThe ZCC1005 delivers 1.5A continuous load' v; [  T  g* a3 N
    current with up to 95% efficiency. The ZCC1005
    2 r0 {5 |* v  L( Coperates with fixed frequency peak current control4 x9 I; ]) ]2 Y0 e1 J3 y3 s
    with built-in compensation eliminates the need for6 o) A* }; n7 ?/ y7 j; M
    external components.
    0 N* O3 h1 M: _Cycle-by-cycle current limit in high-side MOSFET
    ! _. z$ }4 I" c! G( H: `protects the converter in an overload condition.+ s0 [/ w) `/ Y' G% r
    Hiccup mode protection is triggered if the
    7 c% ^1 _: f* Z8 R7 {over-current condition has persisted for longer than4 H& l1 R# g5 U0 _
    the present time.
      |% g  U0 c# r$ h6 N$ K) g+ @  OThe ZCC1005 exhibits protection features that; f& E1 e: o: s' Z, |7 }+ @
    protect the load from faults like under-voltage,+ _/ E$ X& b. s# t# q2 Q1 H& {
    over-current and over-temperature.  d) L1 n* F: Q# v
    The ZCC1005 is available in an ESOP-8 package+ L; k! l. D& W; r4 j- B

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    2#
    发表于 2022-11-15 18:34 | 只看该作者
    同步降压 优点:效率高:mos管的内阻非常小,导通压降远比肖特基二极管的正向大同压降小很多。
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