AP2181D/AP2191D Green 1.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH WITH OUTPUT DISCHARGE Description Pin Assignments The AP2181D and AP2191D are integrated high-side power switches (Top View) optimized for Universal Serial Bus (USB) and other hot-swap GND 1 8 NC applications. The family of devices complies with USB 2.0 and is available with both polarities of Enable input. They offer current and IN 2 7 OUT 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 EN 4 5 FLG and does not require any external components. SO-8 All devices are available in SO-8, MSOP-8, MSOP-8EP, SOT25, and U-DFN2018-6 packages. (Top View) NC 1 8 GND Features 2 7 OUT IN Single USB Port Power Switches with Output Discharge 6 OUT 3 IN Over-Current and Thermal Protection EN 4 5 FLG 2.1A Accurate Current Limiting Fast Transient Response MSOP-8/MSOP-8EP Reverse Current Blocking Note: Latter with Exposed Pad 90m On-Resistance (Dotted Line) Input Voltage Range: 2.7V to 5.5V 0.6ms Typical Rise Time (Top View) Very Low Shutdown Current: 1A (Max) 1 5 OUT IN Fault Report (FLG) with Blanking Time (7ms Typ) ESD Protection: 4kV HBM, 300V MM 2 GND Active High (AP2191D) or Active Low (AP2181D) Enable Ambient Temperature Range -40C to +85C 3 4 FLG EN SOT25, SO-8, MSOP-8, MSOP-8EP (Exposed Pad), and U- DFN2018-6: Available in Green Molding Compound (No Br, SOT25 Sb) Lead-Free Finish RoHS Compliant (Notes 1 & 2) (Top View) Halogen and Antimony Free. Green Device (Note 3) UL Recognized, File Number E322375 IEC60950-1 CB Scheme Certified 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. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied. 2. See AP2181D/AP2191D Typical Applications Circuit AP2191D Enable Active High Power Supply IN OUT Load 2.7V to 5.5V 0.1F 0.1F 10F 10k 120F FLG ON EN GND OFF Available Options Enable Pin Current Limit Recommended Maximum Part Number Channel (EN) (Typical) Continuous Load Current AP2181D 1 Active Low 2.1A 1.5A AP2191D 1 Active High 2.1A 1.5A Pin Descriptions Pin Number Pin SO-8 Functions Name MSOP-8EP SOT25 U-DFN2018-6 MSOP-8 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 (AP2181D) or active high (AP2191D) Over-current and over-temperature fault report open-drain flag is active low when FLG 5 5 3 4 triggered OUT 6, 7 6, 7 1 5, 6 Voltage output pin (all OUT pins must be tied together externally) NC 8 8 N/A N/A No internal connection recommend tie to OUT pins Exposed pad. It should be connected to GND and thermal mass for enhanced thermal Exposed Tab Exposed Tab Exposed Tab impedance. It should not be used as electrical ground conduction path. 2 of 17 AP2181D/AP2191D January 2018 Diodes Incorporated www.diodes.com Document number: DS32251 Rev. 5 - 2