AP5503 宽电压 LED 升降压型恒流芯片

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& P7 e$ D2 G" l5 i& s AP5503 宽电压 LED 升降压型恒流芯片
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2 K" E8 a! v% C9 W! a9 q' q8 Q描述
AP5503是电流模式DC / DC转换器，具有
用于驱动LED的外部电源NMOS。的
( ], t% Y1 u6 p. HAP5503在降压，升压和升压模式下用作LED驱动器
. ?9 }! b0 O7 F' ]* k7 @降压-升压模式。 LED电流可通过120mV感测电阻器在外部编程。用
500KHz工作频率，外部电感和
输入/输出电容器都可以很小。调光罐
可以是模拟，PWM或PWM转换为模拟
与外部电容器。
AP5503采用MSOP-10（FD）封装。
特征
- R0 n; F, b: ^5 z8 f4 T„高电压：VIN最高60V，VOUT最高60V
$ C5 p+ a0 `. R8 `! h, B降压，升压或降压-升压操作
„具有500KHz和200KHz的电流模式PWM
4 V9 f+ s# R" Y1 ?开关频率
„易于调光：使用一个外部电容器将模拟，PWM或PWM转换为模拟
+ p4 x7 r5 k! b4 E. h* T1 D软启动以避免涌入电流
7 E: |" j, O- ~" |可编程过压保护至极限
输出电压
* L6 |' B" K/ {& D# yVIN欠压锁定和热关断
9 {) C' @: P' ^2 X/ f% fMSOP-10（FD）封装
应用领域
GPS，便携式DVD背光
7 ?, Z: j8 X6 j! c„台灯和房间照明
工业显示屏背光
Description
  U2 V: n! c' ~6 R3 }The AP5503 is a current mode DC/DC converter with
, l$ C/ H/ K* S+ ]outside power NMOS designed to drive LEDs. The
AP5503 operates as a LED driver in buck, boost and
  C; O: h+ ^) L" j( ]buck-boost mode. The LED current is externally programmable with a 120mV sense resistor. With a
500KHz operating frequency, the external inductor and
& ?$ i5 ?+ o2 |% C4 [7 z4 ^input/output capacitors can all be small. Dimming can
be either analog, PWM, or PWM converting to analog
with an external capacitor.
: K) D! F" c: \( D% m- n: D! [2 ~+ qThe AP5503 is available in MSOP-10 (FD) package.
$ h" D7 p4 Z: m8 o' D" \Features
4 t8 }# M' T/ u„ High Voltage : VIN up to 60V, VOUT up to 60V
& ^3 o0 z% e% x/ l9 h* g„ Buck, Boost or Buck-Boost Operation
„ Current Mode PWM with 500KHz and 200KHz
- X; [' e1 I/ [0 u; W4 d2 JSwitching Frequency
; ]; l7 t) P. ]# t) U„ Easy dimming : Analog, PWM or PWM Converting to Analog with One External Capacitor
5 J) j: ]+ b  h8 @5 D$ O„ Soft Start to Avoid Inrush Current
„ Programmable Over Voltage Protection to Limit
: c1 v8 n! @6 wOutput Voltage
7 v- t( B0 Q- I„ VIN Under Voltage Lockout and Thermal Shutdown
4 m9 T# A$ f) `. z" _, v2 q4 w„ MSOP-10 (FD) Package
+ ~  B6 F: Q, T# v) z0 u- j4 HApplications
( y, g: @/ V6 |  U/ o# Z! g„ GPS, Portable DVD Backlight
„ Desk Light and Room Lighting
„ Industrial Display Backlight
% U( d7 h8 _8 I7 s7 H6 \! O8 X8、样板申请联系：
( J* [9 I/ x* A% S深圳市世微半导体有限公司
如需要了解可以联系欧阳： 18811874036 13714437124（微信）QQ:2355558464
9 m: o: `  w8 i! u深圳市宝安西乡街道宝源路名优采购中心B座1区326

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