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MCP1653 Datasheet(PDF) 10 Page - Microchip Technology |
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MCP1653 Datasheet(HTML) 10 Page - Microchip Technology |
10 / 20 page 10 LED Lighting Solutions Design Guide www.microchip.com/lighting LED Lighting Solutions PIC16HV785 Digital IO OA1 COMP1 OA2 COMP2 VBUS LED String Temp Sensor PWM Voltage Ref. 5V Reg. Int OSC BOR CPU – + – + – + – + 10-bit ADC PIC16HV785 Boost LED Driver Application Mixed-Signal LED Drivers Some devices, such as the PIC16F616, have a SR latch module that can be used in many different ways along with the comparators and other digital signal events. Events such as clock pulses or comparator signals can be programmed to set or reset the SR latch. These programming options allow almost any kind of control signal to be generated. The PIC16F785 has two on-chip op amps, two on-chip comparators, two SR latch PWM modules and an adjustable voltage reference. This combination of peripherals can be digitally configured to implement a wide variety of SMPS circuit topologies. Literature on the Web ■ AN1035 – Designing with HV Microcontrollers DS01035 ■ AN1047 – Buck-Boost LED Driver Using the PIC16F785 MCU, DS01047 ■ AN1271 – Offline Power Converter for High Brightness LEDs Using the PIC16HV785 Microcontroller, DS01271 ■ PIC16F785/HV785 Device Data Sheet, DS41249 PIC16HV785 COMP1 COMP2 OA1 LED String OA2 ISENSE PWM Dimming Control AC Ref RFB – + – + – + PWM Voltage Ref. 5V Reg. Int OSC BOR CPU – + 10-bit ADC MCP1402 PWM Input Filter VBUS VBUS VBUS PIC16HV785 Flyback Converter with PFC and Dimming Control |
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