STOD14PUR STMicroelectronics

STOD14 700 mA dual DC-DC converter for powering AMOLED displays Datasheet production data Features Step-down and inverter converters Operating input voltage range from 6 V to 13 V Synchronous rectification for both converters 700 mA output current Fixed positive voltage 4.6 V Programmable negative voltage by S from WIRE - 2.4 V to - 6.0 V DFN12L (4 x 4 mm) Typical efficiency 85% PWM mode controller 1.6 MHz switching frequency Enable pin for shutdown mode Description Low quiescent current in shutdown mode The STOD14 is a dual channel DC-DC converter Soft-start with inrush current protection driver for medium-sized AMOLED display panels. Short-circuit protection on positive output It integrates a step-down and an inverting converter in a compact IC design. The excellent Overtemperature protection efficiency makes it particularly suitable for battery Temperature range - 40 C to 85 C operated products. The high frequency operation True shutdown mode allows the value and size of external components to be reduced. Fast output discharge after shutdown The positive output voltage is fixed at 4.6 V with Package DFN 4x4 mm 12 leads 0.75 mm very high current capability and is generated height, 0.5 mm pitch using a buck converter. The negative output is programmable by an external MCU through a Applications dedicated pin which implements single-wire protocol, with values from - 2.4 to - 6.0 V. Digital photo frames Ultra mobile PCs Soft-start with controlled inrush current limit, load disconnect and thermal shutdown are integrated Mobile Internet devices functions of the device. Digital still cameras / camcorders Portable media players / DVD players Table 1. Device summary Order code Positive voltage Negative voltage Package Packaging STOD14PUR 4.6 V - 2.4 V to - 6.0 V DFN12L (4 x 4 mm) 3000 parts per reel August 2012 Doc ID 023562 Rev 1 1/22 This is information on a product in full production. www.st.com 22Contents STOD14 Contents 1 Schematic . 3 2 Pin configuration 5 3 Maximum ratings 6 4 Electrical characteristics . 7 5 Typical performance characteristics 9 6 Application Information . 11 6.1 Inductor selection . 11 6.2 Input and output capacitor selection . 11 6.3 Recommended PCB layout . 11 7 Detailed description 13 7.1 Mode of operation 13 7.2 Enable pin 13 7.3 Soft-start and inrush current limiting 13 7.4 Startup sequence . 13 7.5 Fast discharge . 14 7.6 Undervoltage lockout 14 7.7 Overtemperature protection . 14 7.8 Short-circuit startup detection (SSD) 14 7.9 Overload protection (OLP) 14 7.10 Short-circuit protection (SCP) . 14 7.11 S-WIRE protocol description 15 7.12 Enable and S-WIRE operation . 15 7.13 Programming negative output voltage . 16 8 Package mechanical data 17 9 Revision history . 21 2/22 Doc ID 023562 Rev 1