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寻求一个LED模拟调光驱动电路和一个PWM调光电路，驱动功率最大20W，输出电压12V。
candiy chen,
输入电压是多少？TPS61500是带有Analog and Pure PWM Brightness Dimming， 最高输出电流为3A的高亮度LED 驱动器。
www.ti.com/.../slvu261.pdf
www.ti.com/.../tps61500
