MAX14515 19-4240 Rev 0 8/08 High-Voltage Liquid Lens Driver General Description Features The MAX14515 high-voltage liquid lens driver features a Small Footprint for Placement Inside Camera 2 high-voltage differential output controlled through an I C Modules interface. The MAX14515 uses a charge-pump-based 47V Maximum Output (C = 220pF) boost converter and integrated H-bridge to provide a RMS LENS compact lens driver solution with minimal external com- 2 I C-Compatible Interface for Setting Output ponents to achieve a small overall footprint suitable for Voltage small space constraints inside camera modules. 8-Bit Output Voltage Resolution The MAX14515 features an 8-bit monotonic DAC with a single differential high-voltage output controlled by a Guaranteed Monotonic Output 2 2-wire I C interface to set the amplitude. The high-volt- 15kV Human Body Model ESD Protection on age outputs are capable of delivering up to 42V RMS Outputs (min) into a 220pF liquid lens load at 1.0kHz (min). Low 500nA (max) Shutdown Current The MAX14515 also features two power-saving modes (shutdown mode and sleep mode) to minimize power +2.7V to +5.5V Input Voltage Range consumption when the device is inactive. Shutdown Space-Saving, 8-Bump WLP (1mm x 2mm) Package mode places the device in a low-power state that resets 2 all registers and disables the I C interface to reduce cur- rent below 500nA (max). In sleep mode, the power-on reset circuit remains active. If no activity is detected on 2 the I C interface, current consumption is less than 3A. The MAX14515 operates over the +2.7V to +5.5V sup- ply voltage range, ideal for portable applications using lithium ion battery sources. The MAX14515 is specified over the -40C to +85C extended temperature range and is available in a small (1mm x 2mm) 8-bump WLP package. Ordering Information Applications TOP PART TEMP RANGE PIN-PACKAGE Autofocus Camera Modules MARK Barcode Readers MAX14515EWA+ -40C to +85C 8 WLP +AAA Webcams +Denotes a lead-free/RoHS-compliant package. Pin Configuration Typical Application Circuit TOP VIEW 2.8V 0.1F 1F 1.8V (BUMP SIDE DOWN) MAX14515 12 34 + V V DD REF A SCL EN GND V A V SDA B IMAGE LIQUID SCL SIGNAL LENS MAX14515 PROCESSOR B SDA V V V DD REF B V EN A GND WLP 1mm x 2mm Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim s website at www.maxim-ic.com.High-Voltage Liquid Lens Driver ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) Junction-to-Ambient Thermal Resistance (q ) (Note 1) JA V ........................................................................-0.3V to +6.0V 8-Bump WLP ..............................................................192C/W DD V V .....................................................................-0.3V to +52V Operating Temperature Range ...........................-40C to +85C A, B V .........................................MAX (-0.3V, V - 0.3V) to +6.0V Junction Temperature......................................................+150C REF DD SDA, SCL, EN........................................................-0.3V to +6.0V Storage Temperature Range .............................-65C to +150C Continuous Power Dissipation (T = +70C): Lead Temperature (soldering, 10s) .................................+300C A 8-Bump WLP (derate 5.2mW/C above +70C)...........416mW Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = +2.7V to +5.5V, C = 0.1F, C = 1F, C = 220pF, T = -40C to +85C, unless otherwise noted. Typical values are at DD VDD REF LENS A V = +2.8V and T = +25C.) (Note 2) DD A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage V 2.7 5.5 V DD Input Supply Current I Peak output voltage register (VP) = 0xFF 9 mA DD Reference Output Voltage V 5.5 V REF Shutdown Supply Current I EN = GND 1 500 nA SHDN V = 1.8V, V = 4.2V 8 EN DD SM = 0, Sleep Supply Current I A SLEEP SDA = SCL V = V , V = 2.8V 1.2 3 EN DD DD POR Threshold V 2.6 V TH POR HIGH-VOLTAGE OUTPUTS (V , V ) A B VP = 0x01 10 Peak Output Voltage (Note 3) V V PEAK VP = 0xFF 52 VP = 0x01 10 Output RMS Voltage V V RMS VP = 0xFF 42 47 Output Voltage Ripple V C = 120pF 250 mV RPL LENS Pulldown Strength RL SM = 0 2 k PD Output Switching Frequency f 11.11.2kHz LENS CONTROL INPUTS (SDA, SCL, EN) Input Logic-High Voltage V 1.5 V IH Input Logic-Low Voltage V 0.5 V IL Output Logic-Low Voltage V I = 3mA 0.4 V OL SINK EN = V 0.01 6 CC Input Low Leakage Current I A IL EN = GND 0.01 0.5 Input High Leakage Current I 0.01 2.5 A IH Input Capacitance C 10 pF IN 2 MAX14515