AP2181/ AP2191 1.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH Description Pin Assignments The AP2181 and AP2191 are integrated high-side power switches ( Top View ) optimized for Universal Serial Bus (USB) and other hot-swap applications. The family of devices complies with USB 2.0 and is 1 8 GND NC available with both polarities of Enable input. They offer current and 2 7 OUT IN thermal limiting and short circuit protection as well as controlled rise time and under-voltage lockout functionality. A 7ms deglitch capability IN 3 6 OUT on the open-drain Flag output prevents false over-current reporting and does not require any external components. EN 4 5 FLG SO-8 All devices are available in SO-8, MSOP-8EP, SOT25 and U-DFN2018-6 packages. Features Single USB Port Power Switches Over-Current and Thermal Protection 2.1A Accurate Current Limiting Reverse Current Blocking 95m On-Resistance Input Voltage Range: 2.7V 5.5V 0.6ms Typical Rise Time Very Low Shutdown Current: 1A (max) Fault Report (FLG) with Blanking Time (7ms typ) ESD Protection: 4kV HBM, 300V MM Active Low (AP2181) or Active High (AP2191) Enable Ambient Temperature Range: -40C to +85C SOT25, SO-8, MSOP-8EP (Exposed Pad), and U-DFN2018-6: Available in Green Molding Compound (No Br, Sb) Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) ( Top View ) Halogen and Antimony Free. Green Device (Note 3) 1 GND 6 OUT UL Recognized, File Number E322375 IEC60950-1 CB Scheme Certified 2 5 IN OUT 3 4 EN FLG Applications U-DFN2018-6 Consumer Electronics LCD TVs & Monitors, Game Machines Communications Set-Top-Boxes, GPS Systems, Smartphones Computing Laptops, Desktops, Servers, Printers, Docking Stations, HUBs Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See AP2181/ AP2191 Typical Applications Circuit AAAAPPPP2222111199991111 EEEEnnnnaaaabbbblllleeee AAAAccccttttiiiivvvveeee HHHHiiiigggghhhh IIIINNNN LLLLooooaaaadddd PPPPoooowwwweeeerrrr SSSSuuuuppppppppllllyyyy OOOOUUUUTTTT 2222....7777VVVV ttttoooo 5555....5555VVVV 0000....1111uuuuFFFF 00..11uuFF 00..11uuFF 11110000uuuuFFFF 11110000kkkk 111122220000uuuuFFFF FFFFLLLLGGGG EEEENNNN GGNNDD GGNNDD OONN OONN OOOOFFFFFFFF Available Options Current Limit Recommended Maximum Continuous Part Number Channel Enable Pin (EN) (typ) Load Current AP2181 1 Active Low 2.1A 1.5A AP2191 1 Active High 2.1A 1.5A Pin Descriptions Pin Number Pin Function Name SO-8 MSOP-8EP SOT25 U-DFN2018-6 GND 1 1 2 1 Ground IN 2, 3 2, 3 5 2 Voltage input pin (all IN pins must be tied together externally) EN 4 4 4 3 Enable input, active low (AP2181) or active high (AP2191) Over-current and over-temperature fault report. FLG 5 5 3 4 Open-drain flag is active low when triggered OUT 6, 7 6, 7 1 5, 6 Voltage output pin (all OUT pins must be tied together externally) No internal connection. NC 8 8 N/A N/A Recommend tie to OUT pins Exposed pad. Exposed tab - Exposed tab - Exposed tab It should be connected to GND and thermal mass for enhanced thermal impedance. It should not be used as electrical ground conduction path. 2 of 17 March 2015 AP2181/ AP2191 Diodes Incorporated www.diodes.com Document number: DS31563 Rev. 8 - 2