AP2161A/ AP2171A 1A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH Description Pin Assignments The AP2161A and AP2171A 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 undervoltage 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 1.5A 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 (AP2161A) or Active High (AP2171A) 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 6 GND OUT UL Recognized, File Number E322375 IEC60950-1 CB Scheme Certified 5 IN 2 OUT 4 3 EN FLG Applications U-DFN2018-6 Consumer Electronics LCD TVs & Monitors, Game Machines Communications Set-Top-Boxes, GPS, 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 AP2161A/ AP2171A Typical Applications Circuit Available Options Current Limit Recommended Maximum Continuous Part Number Channel Enable Pin (EN) (typ) Load Current AP2161A 1 Active Low 1.5A 1.0A AP2171A 1 Active High 1.5A 1.0A 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 (AP2161A) or active high (AP2171A) 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. 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 18 March 2015 AP2161A/AP2171A Diodes Incorporated www.diodes.com Document number: DS37617 Rev. 1 - 2