1 A 2 3 4 5 6 VDD HALL_PWR A U1 1 C1 0.1µF 2 U2 1 VDD OUT C2 0.1µF 3 GND 2 AH180-PL-A U3 1 VDD OUT C3 0.1µF 3 GND 2 AH180-PL-A POSITION 1 U4 1 VDD OUT C4 0.1µF 3 GND POSITION 2 C5 0.1µF 3 OUT 2 AH180-PL-A U5 1 VDD GND VDD AH180-PL-A POSITION 4 R1 R2 R3 30.0K 20.0K 10K ON/OFF/MCLR GND AH180-PL-A POSITION 3 3 OUT 2 "OFF" POSITION ANA/PGC SWITCH FUNCTION ALL OPEN 5V U4 CLOSED 0V U3 CLOSED 1.25V U2 CLOSED 2.5V U1 CLOSED 3.3V HALL_PWR R4 10K B PGD C7 VDD T R6 10K VDD B C6 10µF 0.1µF VDD RA5/CLKIN/T1CKI/C2IN1-/CWG1OUT0 ICSPDAT/CWG1OUT/DACOUT/FVROUT/C2IN0+/C1IN0+/AN0/RA0 RA4/AN3/CWG1FLT/CLKOUT/C1IN1-/CWG1OUT1/T1G ICSPCLK/VREF+/C2IN0-/C1IN0-/AN1/RA1 RA3/MCLR/CWG1FLT/T1G CWG1OUT0/CCP/C2OUT/C1OUT/T0CKI/INT/AN2/RA2 8 9 VDD 7 6 5 VSS PAD 7 VCC 3 4 9 ON/OFF/MCLR 1 4 L1 PWM PHASE R8 470K Q1B FDS9926A 1uF HIDR PP6 2 FCCM ANA/PGC PIC12F752-I/MF C C8 BOOT 5 6 6 3 2 3 4 HALL_PWR ISENSE U6 R7 30.0K VDD GND PAD LODR 8 E1 10uH C9 22µF 7 8 U7 1 VBAT 5 C10 22µF C11 22µF TO LED BOARD 2 R9 1 MCP14628-E/MF C E2 Q1A FDS9926A R10 0.05R ISENSE 1K C12 22pF VDD VBAT VDD 3 ON/OFF/MCLR BATTERY SPRING CONTACT B1 C13 10uF PGD ANA/PGC SOLDER CONNECTIONS TO METAL SLEEVE D C14 10uF VIN 1 PP1 PP2 PP3 PP4 PP5 GND U8 C15 1uF VOUT 2 MCP1702T-5002E/CB M C16 1uF Schematic Title Microchip Technology Inc. GND1 10W Flashlight Demo 2355 W. Chandler Blvd. Chandler, AZ 85224 GND2 D Eng: GND3 Size B Drawn by: FCSM No. DWG No. Scale 2 3 4 Sheet Date: 2/9/2012 233-03-2076.SchDoc 1 B 233-03-2076 M. Loper File: Rev 5 1 6 of 1