PT5100 Auto Focus Motor Driver IC DESCRIPTION The PT5100 is a single 10-bit DAC with 102.3mA output current sink capability. It features an internal reference and operates from a single 2.3V to 5.5V supply. The DAC is controlled via a 2-wire (I2C compatible) serial interface that operates at clock rates up to 400KHz. P P The PT5100’s unique and proprietary Slope Control Modes allow the user to customize the output transient response thereby overcoming mechanical ringing associated with reduced form factor voice coil motors (VCMs). The PT5100 incorporates a power-on reset circuit, which ensures that DAC output powers up to 0V and remains there until a valid write takes place. It has a power-down feature that reduces the current consumption of the device to 1μA maximum. The PT5100 is designed for autofocus, image stabilization, and optical zoom applications in camera phones, digital still cameras, and camcorders. The PT5100 also has many industrial applications, such as controlling temperature, light, and movement, over the range -40℃ to +85℃ without derating. The I2C address for the PT5100 is 0x18h. P P PT5100 has two versions IC about Xshutdown pin: Ver A: XShutdown pin is active low. (Hard Shutdown mode at VXSHUTDIWN=0V) Ver B: XShutdown pin is active High. (Hard Shutdown mode at VXSHUTDIWN=1.8V) B B B B APPLICATIONS CONSUMER APPLICATIONS • • • • • • • • • • • • • • Lens autofocus Image stabilization Optical zoom Shutters Iris/exposure Neutral density (ND) filters Lens covers Camera phones Digital still cameras Camera modules Digital video cameras/camcorders Camera-enabled devices Security cameras Web/PC cameras INDUSTRIAL APPLICATIONS • • • • • • • • Heater controls Fan controls Cooler (Peltier) controls Solenoid controls Valve controls Linear actuator controls Light controls Current loop controls STRUCTURE • Silicon CMOS IC FEATURES • • • • • • • • • • • • • 102.3mA current sink 2-wire (I2C-compatible) 1.8V serial interface 10-bit resolution DAC Integrated current sense resistor Selectable output slope control 2.3V to 5.5V power supply Guaranteed monotonic over all codes Power-down to 0.5μA typical Internal reference Built-in UVLO shutdown circuit Power-down function Power-on reset Available in 2 x 3 array, 0.961mm x 1.580*0.395mm WLCSP packages P P Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT5100 BLOCK DIAGRAM APPLICATION CIRCUIT V1.0 2 November 2009 PT5100 ORDER INFORMATION Valid Part Number PT5100 Package Type 6 Pins, WCSP Top Code 5100 PIN CONFIGURATION PIN DESCRIPTION WCSP-6 Ball Name IBBSINKB Xshutdown GND SDA VDD SCL V1.0 Description Output current sink Power down, asynchronous power down signal Ground pin (Power/Analog/Digital ground) IPP2PC interface signal Power supply IPP2PC interface signal 3 Ball No. A1 A2 B1 B2 C1 C2 November 2009 PT5100 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.0 4 November 2009