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| MX172 TRIANGULAR TYPE AUTO FOCUS IC FEATURES * * * * * Package : 14-pin SSOP Operating voltage : 2V~4V Operating temperature : -25oC~60oC Supply current : max. 10mA (without output current) Input current level : 1nA~5uA * * * * Surround light level : max. 50uA (PSD output current) IRED drive output : min. 20mA Magnet drive current : min. 200mA Measuring time : max. 50ms DESCRIPTION MX172 is designed for Triangular system auto focus cameras. It is regarded as input component for PSD (Position Sensitive Diode), 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 14 SSOP GND CH1 PSD1 PSD2 CH2 VCC VE 2 3 14 13 12 OUT1 OUT2 IRED CTRL CT VR1 VR2 PIN FUNCTIONS SYMBOL GND CH1 PSD1 PSD2 CH2 VCC VE VR2 VR1 CT CTRL IRED OUT2 OUT1 PIN NAME Ground Pin Hold Capacitor Pin 1 PSD Input Pin 1 PSD Input Pin 2 Hold Capacitor Pin 2 Supply Pin (Secondly) Supply Pin (Battery) VR Pin for Adjustment 2 VR Pin for Adjustment 1 Timing Capacitor Power Control Output Control for IRED Data Output Pin 2 (MSB) Data Output Pin 1(LSB) MX172 4 5 6 7 11 10 9 8 P/N: PM0168 1 REV. 2.1, AUG 29, 1995 MX172 BLOCK DIAGRAM VR1 VR2 GND Surrounding light rejection 1 CH1 AF Adjust Comparator Latch and Encode Output Driver Output1, 2 PSD1 Head Amp.1 Inf.Cramp IRED PSD2 Head Amp.2 Operation IRED Drive Circuit CH2 Surrounding light rejection 2 Sequence Control Logic Timing Circuit Vcc Switch VE CTLR C Timing BASIC CONNECTION DIAGRAM 1 GND 2 CH1 3 PSD1 PSD OUT1 14 OUT2 13 IRED C1 C2 0.47mF IRED 12 CTRL 11 C TIMING 10 VR1 9 VR2 R3 SW1 C4 4 PSD2 5 CH2 6 VCC 7 VE C3 0.47mF 0.022mF VR1 VR2 8 P/N: PM0168 REV. 2.1, AUG 29, 1995 2 MX172 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 -0.3~4.0 350 -3 -0.3~VCC+0.3 -0.3~7.0 400 -25~+60 -15~+50 -55~+150 UNIT V mW mW/oC V V mA o o o CONDITION TA<25oC 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, 4.0V) SUPPLY CURRENT SYMBOL ICC1 ICC1 ICC2 ICC3 ICC4 ICC5 ICC6 PARAMETER Standby Current Quick Charge State (Charge) Quick Charge State (Discharge) Steady State (Charge) Steady State (Discharge) IRED Flashing State Finish State 2.5 2.5 2.0 2.0 MIN TYP MAX 3.0 7.0 7.0 5.0 5.0 8.0 40.0 UNIT uA mA mA mA mA mA mA CONDITION TIMING CIRCUIT SYMBOL ICT RCT VTH1 VTH2 DVTH2/3 VSATPNP PARAMETER CT Charge Current Discharge Resistance Threshold Voltage1 Threshold Voltage2 Deference Vth2/3 VE/VCC PNP VCE (SAT) MIN 0.8 5.6 655 1280 14.0 TYP 1.3 7.0 680 1383 25.0 MAX 2.0 8.5 740 1420 35.0 220 UNIT uA K ohm mV mV mV mV CONDITION P/N: PM0168 REV. 2.1, AUG 29, 1995 3 MX172 HEAD AMPLIFIER/ADJUSTMENT CIRCUIT SYMBOL VIN ISDMX IADJ VCOMP1 VCOMP2 PARAMETER Input Voltage Max. Surround Light Adj. VR Current Compare Voltage1 Compare Voltage2 MIN 620 16.0 38.0 318 530 44.0 336 560 50.0 354 590 TYP 680 MAX 740 UNIT mV uA uA mV mV Signal Ratio=3:7 Signal Ratio=5:5 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 -300 460 -7 7 -11 11 TYP MAX -1000 1200 -16 16 100 UNIT uA uA uA uA nA CONDITION DATA OUTPUT TERMIANAL SYMBOL IOUTLK1 IOUTLK2 VOUTSAT1 IOUTMX1 VOUTMAX1 VOUTSAT2 IOUTMX2 VOUTMX2 PARAMETER Output Leak Current 1 Output Leak Current 2 Saturation Voltage Max. Output Current1 Max. Voltage1 Saturation Voltage2 Max. Output Current2 Max. Voltage2 300 6.0 8.0 10.0 20 10.0 300 MIN TYP MAX 1.0 1.0 300 UNIT uA uA mV mA V mV mA V IO = 300mA IO = 300mA CONDITION VO = 10.0V VO=VCC IO = 20mA IRED FLASHING CONTROL CIRCUIT SYMBOL VIRED1 VIRED2 IIREDMX PARAMETER IRED Voltage (ON) IRED Voltage (OFF) Max. Output Current 15.0 MIN 920 TYP 980 MAX 1030 350 UNIT mV mV mA CONDITION P/N: PM0168 REV. 2.1, AUG 29, 1995 4 MX172 TIMING WAVEFORM SW1 (POWER) IRED AF MAG. 20MS (TYP.) 0.12MS (TYP.) ORDERING INFORMATION PART NO. MX172MC PACKAGE 14 pin SSOP PACKAGE INFORMATION 14 PIN PLASTIC SSOP 14 8 UNIT : mm 1 5.0+0.3 7 6.4+0.3 4.4+0.2 1.15+0.2 0.22+0.1 0.65 0.10 0.11 0.3 MIN 0.2+0.1 P/N: PM0168 REV. 2.1, AUG 29, 1995 5 MX172 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. 6 |
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