升降压恒流芯片内置MOS外围少保护多!
AP5503 60V DC / DC升降压恒流驱动器
描述
AP5503是一款电流模式DC / DC升降压恒流驱动器
,具有用于驱动LED的外部功率NMOS。 AP5503在降压,升压和降压 - 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。在500KHz的工作频率下,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。
AP5503采用MSOP-10(FD)封装。
特征
高电压:VIN高达60V,VOUT高达60V
降压,升压或降压 - 升压操作
具有500KHz和200KHz开关频率的电流模式PWM
简单的调光:通过一个外部电容将模拟,PWM或PWM转换成模拟信号
深圳深圳深圳深圳深圳深圳深圳
软启动以避免浪涌电流
可编程过电压保护可限制输出电压
VIN欠压闭锁和热关断
MSOP-10(FD)包装
有兴趣的朋友可以联 系欧阳:188 1187 4036 Q Q:2355 558 464可提供MOS IC测试板和配套方案。
AP5503 60V DC/DC Buck-Boost Configuration Converter
Description
The AP5503 is a current mode DC/DC converter with outside power NMOS designed to drive LEDs. The AP5503 operates as a LED driver in buck, boost and buck-boost mode. The LED current is externally pro-grammable with a 120mV sense resistor. With a 500KHz operating frequency, the external inductor and input/output capacitors can all be small. Dimming can be either analog, PWM, or PWM converting to analog with an external capacitor.
The AP5503 is available in MSOP-10 (FD) package.
Features
?High Voltage : VIN up to 60V, VOUT up to 60V
?Buck, Boost or Buck-Boost Operation
?Current Mode PWM with 500KHz and 200KHz Switching Frequency
?Easy dimming : Analog, PWM or PWM Con-verting to Analog with One External Capacitor
?Soft Start to Avoid Inrush Current
?Programmable Over Voltage Protection to Limit Output Voltage
?VIN Under Voltage Lockout and Thermal Shut-down
?MSOP-10 (FD) Package
有兴趣的朋友可以联 系欧阳:188 1187 4036 Q Q:2355 558 464可提供MOS IC测试板和配套方案。