厂商 ：广州市云飞电子科技有限公司
广东 广州- 主营产品：
- microchip
- STC
- SST
联系电话 ：13660603466
商品详细描述
General Description
The RT8452 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications. With a current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 48V, the RT8452 is ideal for buck, boost or buck-boost operation.
With 350kHz operating frequency, the external inductor and capacitors can be small while maintaining high efficiency.
Dimming can be done by either analog or digital. A built-in clamping comparator and filter allow easy low noise analog dimming conversion from digital signal with only one external capacitor. An unique True PWM dimming control is made easy with MOSFET under LED string. A very high dimming ratio can be achieved by adopting both analog
ital dimming and True PWM dimming together.
The RT8452 is available in WQFN-16L 3x3 and SOP-16 packages.
General Description
The RT8452 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications. With a current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 48V, the RT8452 is ideal for buck, boost or buck-boost operation.
With 350kHz operating frequency, the external inductor and capacitors can be small while maintaining high efficiency.
Dimming can be done by either analog or digital. A built-in clamping comparator and filter allow easy low noise analog dimming conversion from digital signal with only one external capacitor. An unique True PWM dimming control is made easy with MOSFET under LED string. A very high dimming ratio can be achieved by adopting both analogital dimming and True PWM dimming together.
The RT8452 is available in WQFN-16L 3x3 and SOP-16 packages.
General Description
The RT8452 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications. With a current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 48V, the RT8452 is ideal for buck, boost or buck-boost operation.
With 350kHz operating frequency, the external inductor and capacitors can be small while maintaining high efficiency.
Dimming can be done by either analog or digital. A built-in clamping comparator and filter allow easy low noise analog dimming conversion from digital signal with only one external capacitor. An unique True PWM dimming control is made easy with MOSFET under LED string. A very high dimming ratio can be achieved by adopting both analogital dimming and True PWM dimming together.
The RT8452 is available in WQFN-16L 3x3 and SOP-16 packages.
总体描述
这是当前一个RT8452模式PWM控制器的设计,以推动一个外部MOSFET为高电流LED应用。与电流感测放大器阈值190千瓦,LED电流可编程和一个外部电流检测电阻。与最大操作输入电压和输出电压的36 V长达48 V、RT8452是理想的巴克,促进或之运作。
用350千赫的操作频率,外部电感、电容可以是很小的,保持了高e
The RT8452 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications. With a current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 48V, the RT8452 is ideal for buck, boost or buck-boost operation.
With 350kHz operating frequency, the external inductor and capacitors can be small while maintaining high efficiency.
Dimming can be done by either analog or digital. A built-in clamping comparator and filter allow easy low noise analog dimming conversion from digital signal with only one external capacitor. An unique True PWM dimming control is made easy with MOSFET under LED string. A very high dimming ratio can be achieved by adopting both analog
ital dimming and True PWM dimming together.The RT8452 is available in WQFN-16L 3x3 and SOP-16 packages.
General Description
The RT8452 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications. With a current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 48V, the RT8452 is ideal for buck, boost or buck-boost operation.
With 350kHz operating frequency, the external inductor and capacitors can be small while maintaining high efficiency.
Dimming can be done by either analog or digital. A built-in clamping comparator and filter allow easy low noise analog dimming conversion from digital signal with only one external capacitor. An unique True PWM dimming control is made easy with MOSFET under LED string. A very high dimming ratio can be achieved by adopting both analog
ital dimming and True PWM dimming together.The RT8452 is available in WQFN-16L 3x3 and SOP-16 packages.
General Description
The RT8452 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications. With a current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 48V, the RT8452 is ideal for buck, boost or buck-boost operation.
With 350kHz operating frequency, the external inductor and capacitors can be small while maintaining high efficiency.
Dimming can be done by either analog or digital. A built-in clamping comparator and filter allow easy low noise analog dimming conversion from digital signal with only one external capacitor. An unique True PWM dimming control is made easy with MOSFET under LED string. A very high dimming ratio can be achieved by adopting both analog
ital dimming and True PWM dimming together.The RT8452 is available in WQFN-16L 3x3 and SOP-16 packages.
总体描述
这是当前一个RT8452模式PWM控制器的设计,以推动一个外部MOSFET为高电流LED应用。与电流感测放大器阈值190千瓦,LED电流可编程和一个外部电流检测电阻。与最大操作输入电压和输出电压的36 V长达48 V、RT8452是理想的巴克,促进或之运作。
用350千赫的操作频率,外部电感、电容可以是很小的,保持了高e
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