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| MX171 AMPLITUDE TYPE AUTO FOCUS IC FEATURES * Package : 8-pin SOP, 8-pin DIP * Operating voltage : 2.2V~6V * Operating temperature : -25oC~60oC * Supply current : max. 10mA (without output current) * * * * Surround light level : max. 20uA (SPD output current) IRED drive output : min. 15mA Magnet drive current : min. 300mA Measuring time : max. 30ms DESCRIPTION MX171 is designed for Amplitude system auto focus cameras. It is regarded as input component for SPD (Silicon Photo Detector), and comprises of circuits that drive AF magnet as output, an infrared emission diode current control circuit, and control circuit of sequential timing. PIN CONFIGURATION 8 SOP GND 8 OUT IRED CT VR PIN FUNCTIONS SYMBOL GND CH SPD VCC VR CT IRED OUT MX171 PIN NAME Ground Pin Hold Capacitor Pin SPD Input Pin Supply Pin VR Pin for Adjustment Timing Capacitor Output Control for IRED Data Output Pin CH SPD VCC 2 3 4 7 6 5 P/N: PM0167 1 REV 1.2, JAN 05, 1996 MX171 BLOCK DIAGRAM VCC AF ADJ. AF SPD POWER VCC REFERENCE AF MAG. HEAD AMP COMPARATOR LATCH MAG. DRIVER SURROUNDING LIGHT IRED DRIVE CIRCUIT REJECTION IRED POWER GND SEQUENCE CONTROL CIRCUIT BASIC CONNECTION DIAGRAM SW1 AF.MAG 1 GND C2 AF.MAG 8 IRED R1 2 CH C1 R3 IRED 7 TR1 C3 R2 3 SPD SPD CT 6 VR (ADJ) 5 C4 4 VCC AF.ADJ. VR 33KW~ 50KW NOTE: C1 = > 47uF C2 = 0.47uF C3 = 150uF C4 = 0.022uF R1 R2 R3 R4 = = = = 1K ohm~10K ohm 1 ohm 27K ohm 10K ohm P/N: PM0167 REV 1.2, JAN 05, 1996 2 MX171 ABSOLUTE MAXIMUM RATINGS SYMBOL VCC PD PDR VIN BVOC IOUT TOPR TOPR TSTG PARAMETER Supply Voltage Power Dissipation Power Dissipation Ratio Input Voltage Output Voltage Output Current Operating Temperature 1 Operating Temperature 2 Storage Temperature RATING -0.3~6.0 550 -5.5 -0.3~VCC+0.3 -0.3~6.0 400 -25~+60 -10~+50 -55~+150 UNIT V mW mW/oC V V mA o o o CONDITION TA<5oC TA>25oC C C C (NOTE) NOTE: The operating temperature 1 range expresses the qualitative operating temperature range but it does not guarantee characteristics. DC CHARACTERISTICS (TA = 25oC, VCC = 2.2V, 3.0V, 6.0V) SUPPLY CURRENT SYMBOL ICC1 ICC2 ICC3 ICC4 ICC5 ICC6 PARAMETER Quick Charge State (Charge) Quick Charge State (Discharge) Steady State (Charge) Steady State (Discharge) IRED Flashing State Finish State MIN 1.5 1.8 1.2 1.2 1.2 TYP 3.2 3.1 2.2 2.1 2.2 16.0 MAX 5.5 6.0 4.2 4.0 4.0 40.0 UNIT mA mA mA mA mA mA output "on" CONDITION TIMING CIRCUIT SYMBOL ICT RCT VTH1 VTH2 PARAMETER CT Charge Current Discharge Resistance Threshold Voltage1 Threshold Voltage2 MIN 0.8 4.5 640 1250 TYP 1.3 7.3 680 1350 MAX 1.8 10.0 720 1450 UNIT uA K ohm mV mV CONDITION P/N: PM0167 REV 1.2, JAN 05, 1996 3 MX171 HEAD AMPLIFIER/ADJUSTMENT CIRCUIT SYMBOL VIN ISDMX VRADJ RON ROFF PARAMETER Input Voltage Max. Surround Light Resistor Range Adjust Risistance (ON) Adjust Risistance (OFF) MIN 620 13.0 0.45 4.5 0.47 TYP 660 32.0 200 MAX 700 UNIT mV uA K ohm K ohm K ohm Iin=50uA CONDITION HOLD CAPACITOR CHARGE/DISCHARGE CURRENT SYMBOL ICH1 ICH2 ICH3 ICH4 ICH5 PARAMETER Quick Charge Current Quick Discharge Current Steady Charge Current Steady Discharge Current CH Input Current MIN -460 460 -7 7 20 TYP -770 770 -11 11 35 MAX -1200 1200 -15 15 100 UNIT uA uA uA uA nA CONDITION DATA OUTPUT TERMIANAL SYMBOL IOUTLK VOUTSAT IOUTMX VOUTMX PARAMETER Output Leak Current Saturation Voltage Max. Output Current Max. Voltage 300 6.0 8.0 10.0 460 MIN TYP MAX 1.0 500 UNIT uA mV mA V IO = 300 mA CONDITION VO = 7.0V IO = 300 mA IRED FLASHING CONTROL CIRCUIT SYMBOL VIRED1 VIRED2 IIREDMX PARAMETER IRED Voltage (ON) IRED Voltage (OFF) Max. Output Current MIN 920 230 15.0 TYP 980 270 32.0 MAX 1030 310 UNIT mV mV mA CONDITION P/N: PM0167 REV 1.2, JAN 05, 1996 4 MX171 TIMING WAVEFORM SW1 (POWER) IRED AF MAG. 20MS (TYP.) 0.12MS (TYP.) ORDERING INFORMATION PART NO. MX171MC MX171PC PACKAGE 8 pin SOP 8 pin PDIP P/N: PM0167 REV 1.2, JAN 05, 1996 5 MX171 PACKAGE INFORMATION 8 PIN PLASTIC SOP 5 8 UNIT : mm 1 4 5.0+0.3 6.2+0.3 4.4+0.2 1.5+0.1 0.11 0.2+0.1 0.4+0.1 1.27 0.15 0.3 MIN P/N: PM0167 REV 1.2, JAN 05, 1996 6 MX171 MACRONIX INTERNATIONAL CO., LTD. HEADQUARTERS: TEL:+886-3-578-8888 FAX:+886-3-578-8887 EUROPE OFFICE: TEL:+32-2-456-8020 FAX:+32-2-456-8021 JAPAN OFFICE: TEL:+81-44-246-9100 FAX:+81-44-246-9105 SINGAPORE OFFICE: TEL:+65-747-2309 FAX:+65-748-4090 TAIPEI OFFICE: TEL:+886-3-509-3300 FAX:+886-3-509-2200 MACRONIX AMERICA, INC. TEL:+1-408-453-8088 FAX:+1-408-453-8488 CHICAGO OFFICE: TEL:+1-847-963-1900 FAX:+1-847-963-1909 http : //www.macronix.com MACRONIX INTERNATIONAL CO., LTD. reserves the rignt to change product and specifications without notice. 7 |
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