AP2301

AP2301/AP2311 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH Description The AP2301 and AP2311 are single channel current-limited integrated high-side power switches optimized for Universal Serial Bus (USB) and other hot-swap applications. The family of devices complies with USB standards and is available with both polarities of Enable input. The devices have fast short-circuit response time for improved overall system robustness, and have integrated output discharge function to ensure completely controlled discharging of the output voltage capacitor. They provide a complete protection solution for applications subject to heavy capacitive loads and the prospect of short circuit, and offer reverse current blocking, over-current, over-temperature and short-circuit protection, as well as controlled rise time and under-voltage lockout functionality. A 7ms deglitch capability on the open-drain Flag output prevents false over-current reporting and does not require any external components. All devices are available in SO-8, MSOP-8-EP and DFN3030E-8 packages. Pin Assignments ( Top View ) GND 1 IN 2 IN 3 EN 4 SO-8 8 7 6 NC OUT OUT N EW PRODUCT 5 FLG ( Top View ) GND IN IN EN 1 2 3 4 8 7 6 5 NC OUT OUT FLG Features • • • • • • • • • • • • • • • • • Single channel current-limited power switch Output discharge function Fast short-circuit response time: 2µs 2.5A accurate current limiting Reverse current blocking 70mΩ on-resistance Input voltage range: 2.7V – 5.5V Built-in soft-start with 0.6ms typical rise time Over-current and thermal protection Fault report (FLG) with blanking time (7ms typ) ESD protection: 2KV HBM, 300V MM Active low (AP2301) or active high (AP2311) enable Ambient temperature range: -40ºC to 85°C SO-8, MSOP-8-EP and DFN3030E-8: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish / RoHS Compliant (Note 1) UL Recognized, File Number E322375 IEC60950-1 CB Scheme Certified MSOP-8-EP ( Top View ) GND IN IN EN 1 2 3 4 8 7 6 5 NC OUT OUT FLG DFN3030E-8 Applications • • • • LCD TVs & Monitors Set-Top-Boxes, Residential Gateways Laptops, Desktops, Servers, e-Readers Printers, Docking Stations, HUBs 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 1 of 18 www.diodes.com June 2010 © Diodes Incorporated Notes: AP2301/AP2311 Document number: DS32241 Rev. 1 - 2 AP2301/AP2311 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH Typical Application Circuit Enable Active High Power Supply 2.7V to 5.5V 10k 0.1uF IN OUT 0.1uF Load 120uF FLG N EW PRODUCT EN ON OFF GND Available Options Part Number AP2301 AP2311 Channel 1 1 Enable pin (EN) Active Low Active High Recommended maximum continuous load current (A) 2.0A Typical current limit (A) 2.5A Package SO-8 MSOP-8-EP DFN3030E-8 Pin Descriptions Pin Name GND IN EN FLG OUT NC Exposed Pad Pin Number 1 2, 3 4 5 6, 7 8 Ground Voltage input pin; connect a 0.1µF or larger ceramic capacitor from IN to GND as close as possible. (all IN pins must be tied together externally) Enable input, active low (AP2301) or active high (AP2311) Over-temperature and over-current fault reporting with 7ms deglitch; active low open-drain output. FLG is disabled for 7ms after turn-on. Voltage output pin (all OUT pins must be tied together externally) No internal connection; recommend tie to OUT pins Recommend connecting to the GND externally for improved power dissipation Descriptions AP2301/AP2311 Document number: DS32241 Rev. 1 - 2 2 of 18 www.diodes.com June 2010 © Diodes Incorporated AP2301/AP2311 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH Functional Block Diagram IN Current Sense UVLO Driver Current Limit Discharge Control OUT N EW PRODUCT EN FLG Thermal Sense Deglitch GND Absolute Maximum Ratings Symbol ESD HBM ESD MM VIN VOUT VEN , VFLG Iload TJmax TST Notes: Parameter Human Body Model ESD Protection Machine Model ESD Protection Input Voltage Output Voltage Enable Voltage Maximum Continuous Load Current Maximum Junction Temperature Storage Temperature Range (Note 2) Ratings 2 300 6.5 VIN + 0.3 6.5 Internal Limited 150 -65 to 150 Unit KV V V V V A °C °C 2. UL Recognized Rating from -30°C to 70°C (Diodes qualified TST from -65°C to 150°C) Recommended Operating Conditions Symbol VIN IOUT TA Parameter Input voltage Output Current Operating Ambient Temperature Min 2.7 0 -40 Max 5.5 2.0 85 Unit V A °C AP2301/AP2311 Document number: DS32241 Rev. 1 - 2 3 of 18 www.diodes.com June 2010 © Diodes Incorporated AP2301/AP2311 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH Electrical Characteristics (TA = 25oC, VIN = +5.0V, CIN = 0.1μF, CL = 1μF, unless otherwise stated) Symbol VUVLO ΔVUVLO ISHDN IQ ILEAK IREV RDS(ON) Parameter Input UVLO Input UVLO Hysteresis Input Shutdown Current Input Quiescent Current Input Leakage Current Reverse Leakage Current VIN rising VIN decreasing Disabled, OUT = open Enabled, OUT = open Disabled, OUT grounded Disabled, VIN= 0V, VOUT= 5V, IREV at VIN VIN = 5V, IOUT= 2.0A Switch on-resistance VIN = 3.3V, IOUT= 2.0A ILIMIT ITrig ISHORT TSHORT VIL VIH ILEAK-EN ILEAK-O TD(ON) TR TD(OFF) TF RFLG IFOH TBlank TDIS RDIS TSHDN THYS Over-Load Current Limit (Note 4) Short-Circuit Current Limit Short-circuit Response Time EN Input Logic Low Voltage EN Input Logic High Voltage EN Input leakage Output leakage current Output turn-on delay time Output turn-on rise time Output turn-off delay time Output turn-off fall time FLG output FET on-resistance FLG Off Current FLG blanking time Discharge time Discharge resistance (Note 4) Thermal Shutdown Threshold Thermal Shutdown Hysteresis SO-8 (Note 5) Thermal Resistance Junction-toMSOP-8-EP (Note 6) Ambient DFN3030E-8 (Note 6) VIN= 5V, VOUT= 4.5V TA = 25oC -40oC ≤ TA ≤ 85oC o TA = 25 C Test Conditions (Note 3) Min 1.6 Typ. 2.0 50 0.1 60 0.1 0.01 70 90 Max 2.4 Unit V mV μA μA μA μA 1 100 1 1 84 105 108 135 N EW PRODUCT mΩ -40oC ≤ TA ≤ 85oC -40 C≤ TA ≤85 C o o 2.0 2.5 2.5 2.75 2 2.85 A A A μs Current limiting trigger threshold Output Current Slew rate (