AN41919A DC IRIS Control LSI for IP Camera and Network Camera FEATURES Built-in DC IRIS controller DC IRIS control by 4-line serial data communication PCB space saving Low power consumption of Iris drive by PWM DC Iris servo High-speed response and High stability 44 pin Plastic Quad Flat Non-leaded Package (QFN Type) DESCRIPTION AN41919A is a DC IRIS control LSI for IP camera and security camera. It integrates digital PID control circuit and is able to control various IRIS motors. APPLICATIONS IP camera, security camera DC Iris servo High-speed response and SIMPLIFIED APPLICATION High stability. Existing system N.C. N.C. 1 33 0.1 F VREF N.C. 2 32 0.1 F AVDD3 CREF ENABLE 3 31 (3.1 V) AVDD3 RST 4 30 ADCIN MONI 2 5 Luminance change 29 TESTOUT GNDD 6 time 28 0.1 F Response is very slow AMPINP MONI 1 7 27 DVDD AMPINN DVDD 8 26 (3.1 V) AMPOUT VD IN VD 9 25 signal AN41919A system 0.1 F N.C. OSCIN System 10 24 CLK N.C. N.C. 11 23 VDD5 (4.8 V) Drive Coil Notes) This application circuit is an example. The operation of mass Luminance change production set is not guaranteed. You should perform enough time evaluation and verification on the design of mass production set. High-speed response You are fully responsible for the incorporation of the above and High stability application circuit and information in the design of your equipment. Ver. BEB Publication date: November 2012 1 Damping Coil N.C. N.C. 12 44 DRV OUT1 PWM IN 13 43 GND5 BUF OUT 14 42 0.1 F AMP2OUT VDD5 15 41 DRV OUT2 AMP2INP 16 40 N.C. GNDA 17 39 SOUT AMP2REF 18 38 0.1 F CS TEST 19 37 SCK CLK SW 20 36 SIN N.C. 21 35 N.C. N.C. 22 34 Luminance level Luminance levelAN41919A ABSOLUTE MAXIMUM RATINGS Parameter Symbol Rating Unit Note AVDD3 0.3 to +4.0 Controller supply voltage V *1 DVDD 0.3 to +4.0 Supply voltage for motor controller VDD5 0.3 to +6.0 V *1 Operating ambient temperature T 20 to +85 C *2, *4 opr Operating junction temperature T 20 to + 125 C *2 j Storage temperature T 55 to +125 C *2 stg Motor driver DRV OUT1, 0.15 A/ch H bridge drive current DRV OUT2 ADCIN, AMPINP, AMPINN, AMP2INP, 0.3 to (AVDD3 + 0.3) V *3 CREF, AMP2REF CS, SCK, SIN, Input Voltage Range OSCIN, VD IN, RST, ENABLE, 0.3 to (DVDD + 0.3) V *3 CLK SW, TEST, PWM IN VREF, TESTOUT, 0.3 to (AVDD3 + 0.3) V *3 AMPOUT, AMP2OUT Output Voltage Range SOUT, MONI 1, 0.3 to (DVDD + 0.3) V *3 MONI 2, BUF OUT HBM (Human Body Model) 2 kV ESD CDM (Charge Device Model) 1 kV Notes). This product may sustain permanent damage if subjected to conditions higher than the above stated absolute maximum rating. This rating is the maximum rating and device operating at this range is not guaranteeable as it is higher than our stated recommended operating range. When subjected under the absolute maximum rating for a long time, the reliability of the product may be affected. *1:The values under the condition not exceeding the above absolute maximum ratings and the power dissipation. *2:Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for Ta = 25C. *3: (DVDD + 0.3 ) V must not be exceeded 4.0 V and (AVDD + 0.3 ) V must not be exceeded 4.0 V. *4:The power dissipation shown is the value at Ta = 85C for the independent (unmounted) IC package without a heat sink. When using this IC, refer to the PD-Ta diagram of the package standard and design the heat radiation with sufficient margin so that the allowable value might not be exceeded based on the conditions of power supply voltage, load, and ambient temperature. Ver. BEB 2