NPA Number 001 New Product Announcement AP3154A/56 Small LCD screen backlighting charge pump LED drivers Description The AP3154A and AP3156 are charge pump LED drivers for small LCD screen backlighting. They are well suited for LCD screens less than 3”. Both use a tri‐mode charge pump switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency in white LED applications. A low external parts count (two 1μF flying and two small 1μF capacitors at VIN and VOUT) make them ideally suited for small, battery‐ powered applications. A serial digital interface is used to enable, disable and set current for each LED with a 32‐level logarithmic scale plus four low‐current settings down to 50μA for i d f optimized efficiency.. The Diodes advantage The AP3154A and AP3156 provide a simple cost effective solution for small screen LCD backlighting x1/x1.5/x2 tri-mode voltage conversion Increases efficiency giving longer battery life. No inductor, inductor diodes Reduces EMI and reduces PCB area SDI digital interface Versatile control to program LED current with 16-level/32-level logarithmic scale Small footprint low profile packages Reduces PCB area and height restrictions Soft-start & Soft-stop p Reduces In-rush current during start up and power down. SCP,OVP,UVLO,TSD Improved robustness Circuit functions LCD backlighting Keypad backlighting Mobile phone flashlight www.diodes.com NPA Number 001 New Product Announcement AP3154A/56 Small LCD screen backlighting charge pump LED drivers Diodes Backlighting IC AP5724 MP 2.7-5.5 26 1.4 84 2 1 0.75 DC/PWM Yes Yes AP5725 MP 2.7-5.5 26 1.4 84 2 1 0.75 DC/PWM Yes Yes AP5726 MP 2.7-5.5 26 1.4 84 2 1 0.75 DC/PWM Yes Yes ZXLD1100 ZXLD1101 ZXLD1937 MP 2.5 ~ 5.5 28V MP 2.5 ~ 5.5 28V MP 2.5 ~ 5.5 28V 1 1 1 80 0.06 0.5 80 0.06 0.5 80 0.06 0.5 DC/PWM No DC/PWM No DC/PWM No No No No Package e Yes Yes Yes Yes Operating ure temperatu range SDI SDI VFB OVP Soft Starrt Dimming g SW RDS S Typ Standby Current C Typ Quiescent Current Efficienccy Frequenccy Max Output Voltage V Input Volta age Status Part Num mber (V) (V) (MHz) (%) (mA) (µA) (Ω) New 2.7 ~ 5.5 0.6/1.2/1.8 88 1.2 1 New 2.7 ~ 5.5 0.5/1.0/2.0 88 1.5 1 - AP3154A AP3156 (V) (°) - -40 to +85 DFN3030-12 - -40 to +85 QFN4040-16 SOT26 0.1 -25 to +85 DFN2020C-6 SOT26 0.25 -25 to +85 DFN2020C-6 SOT26 0.31 -25 to +85 DFN2020C-6 -40 to +85 SC70-6 -40 to +85 TSOT23-6 -40 to +85 TSOT23-5 To find out more information: Web page http://www.diodes.com/products/catalog/detail.php?item‐id=4996 Datasheet http://www.diodes.com/datasheets/AP3154A.pdf http://www.diodes.com/datasheets/AP3156.pdf Ordering information Device Packaging AP3154AFG‐7 TDFN3030‐12 AP3156FVG‐7 QFN4040‐16 Pack mark F9 YWX F7 YWX Reel size Tape width Quantity 7” 8mm 3000 7” 8mm 1500 All variants are in packages that are “Green” Molding Compound (No Br, Sb) with Lead Free Finish/RoHS Compliant (Note 1) Notes:1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes Codes for date coding on part marks Y Year 0~9 W A~Z week 1~26 a~z week 27~53 X A~Z: Green www.diodes.com