AP2401

AP2401/AP2411 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH WITH LATCH-OFF Description The AP2401 and AP2411 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. AP2401 and AP2411 will be latched off after 7ms deglitch. All devices are available DFN3030-8 packages. in SO-8, MSOP-8EP and MSOP-8EP Pin Assignments (Top View) GND 1 IN 2 IN 3 EN 4 SO-8 8 7 6 5 NC OUT OUT FLG N EW PRODUCT (Top View) GND IN IN EN 1 2 3 4 8 7 6 5 NC OUT OUT FLG (Top View) Features GND 1 2 3 4 8 7 6 5 NC OUT OUT FLG • • • • • • • • • • • • • • • • • • Note: Single channel current-limited power switch Output discharge function Output current latch-off when OCP triggered 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: 4KV HBM, 300V MM Active low (AP2401) or active high (AP2411) enable Ambient temperature range: -40ºC to 85°C SO-8, MSOP-8EP and DFN3030-8: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish / RoHS Compliant (Note 1) UL Recognized, File Number E322375 (Pending) IEC60950-1 CB Scheme Certified IN IN EN DFN3030-8 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. See EU Directive 2002/95/EC Annex Notes. AP2401/AP2411 Document number: DS35113 Rev. 3 - 2 1 of 15 www.diodes.com June 2011 © Diodes Incorporated AP2401/AP2411 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH WITH LATCH-OFF 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 AP2401 AP2411 Channel 1 1 Enable pin (EN) Active Low 2.0A Active High 2.5A Recommended maximum continuous load current (A) Typical current limit (A) Package SO-8 MSOP-8EP DFN3030-8 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 (AP2401) or active high (AP2411) 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 Internally connected to GND; recommend connecting to the GND externally for improved power dissipation Descriptions AP2401/AP2411 Document number: DS35113 Rev. 3 - 2 2 of 15 www.diodes.com June 2011 © Diodes Incorporated AP2401/AP2411 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH WITH LATCH-OFF 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 Note: 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 4 300 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 Input voltage Output Current Operating Ambient Temperature Parameter Min 2.7 0 -40 Max 5.5 2.0 85 Unit V A °C AP2401/AP2411 Document number: DS35113 Rev. 3 - 2 3 of 15 www.diodes.com June 2011 © Diodes Incorporated AP2401/AP2411 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH WITH LATCH-OFF Electrical Characteristics (TA = 25°C, VIN = +5.0V, CIN = 0.1µF, CL= 1µF, unless otherwise specified) Symbol VUVLO Parameter Input UVLO 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 Over-Load Current Limit (Note 3) VIN= 5V, VOUT= 4.5V TA = 25 C -40 C ≤ TA ≤ 85 C TA = 25 C -40oC ≤ TA ≤ 85oC -40oC≤ TA ≤85oC 2.0 2.5 2.5 2.1 2.75 2 0.8 2 0.01 0.5 0.1 0.6 0.1 0.05 20 0.01 4 7 0.6 100 140 20 96 92 84 0.1 40 1 15 1.5 1 1 3.3 o o o o Test Conditions (Note 3) Min 1.6 Typ. 2.0 50 0.1 60 0.1 0.01 70 Max 2.4 Unit V mV ΔVUVLO Input UVLO Hysteresis ISHDN IQ ILEAK Input Shutdown Current Input Quiescent Current Input Leakage Current Reverse Leakage Current 1 100 1 1 84 105 µA µA µA µA N EW PRODUCT IREV RDS(ON) 90 108 135 2.85 mΩ A A A µs V V µA µA ms ms ms ms Ω µA ms ms Ω °C °C °C/W °C/W °C/W Current limiting trigger threshold Output Current Slew rate (