DC-DC升降压恒流IC内置MOS

AP5502 60V DC / DC升降压恒流IC内置MOS大电流

描述

AP5502是一款电流模式DC / DC转换器，内置2.5A，60V开关，专门用于驱动LED。

AP5502在降压，升降压恒流IC - 升压模式下用作LED驱动器。 LED电流采用120mV检

测电阻进行外部编程。采用200KHz（SOP-8（FD））/ 500KHz（TDFN3X3-10）工作

频率时，外部电感和输入/输出电容都可以很小。调光可以是模拟，PWM或PWM转换

为模拟与外部电容器。

AP5502采用SOP-8（FD），TSSOP-14（FD）和TDFN3X3-10封装。

特征

0高电压：VIN高达60V，VOUT高达60V

02.5A（MIN）开关电流

0Buck，升压或降压 - 升压操作

0 200KHz的电流模式PWM（SOP-8（FD））/ 500KHz（TDFN3X3-10）开关频率

0易调光：采用一个外部电容进行模拟，PWM或PWM转换至模拟

0Soft开始避免浪涌电流

0可编程过压保护，限制输出电压

0VIN欠压锁定和热关断

0SOP-8（FD），TSSOP-14（FD）和TDFN3X3-10封装

应用

GPS，便携式DVD背光

有兴趣的朋友可以联系欧阳：188 1187 4036 Q Q:2355 558 464可提供IC测试板

和配套方案。

AP5502 60V DC/DC Buck-Boost Configuration Converter

Description

The AP5502 is a current mode DC/DC converter with an internal 2.5A, 60V

switch specifically designed to drive LEDs. The AP5502 operates as a LED

driver in buck, boost and buck-boost mode. The LED current is externally

programmable with a 120mV sense resistor. With a 200KHz (SOP-8 (FD))

/500KHz (TDFN3X3-10) operating frequency, the external inductor and in-

put/output capacitors can all be small. Dimming can be either analog,

PWM, or PWM converting to analog with an external capacitor.

The AP5502 is available in SOP-8 (FD), TSSOP-14 (FD) & TDFN3X3-10

package.

Features

0High Voltage : VIN up to 60V, VOUT up to 60V

02.5A (MIN) Switch Current

0Buck, Boost or Buck-Boost Operation

0Current Mode PWM with 200KHz (SOP-8 (FD)) /500KHz (TDFN3X3-10)

Switching Frequency

0Easy dimming : Analog, PWM or PWM Con-verting to Analog with One

External Capacitor

0Soft Start to Avoid Inrush Current

0Programmable Over Voltage Protection to Limit Output Voltage

0VIN Under Voltage Lockout and Thermal Shut-down

0SOP-8 (FD), TSSOP-14 (FD) & TDFN3X3-10 Package

Applications

„ GPS, Portable DVD Backlight

„ Desk Light and Room Lighting

„ Industrial Display Backlight

Pin Configuration

GATE 1

VP5 2

OVP 3

ISW 4

EN 5

Applications

„GPS, Portable DVD Backlight

„Desk Light and Room Lighting

„Industrial Display Backlight

台灯和室内照明

工业显示器背光

引脚配置