AP2145_10

AP2145/AP2155 0.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH WITH OUTPUT DISCHARGE Description The AP2145 and AP2155 are integrated high-side power switches optimized for Universal Serial Bus (USB) and other hot-swap applications. The family of devices complies with USB 2.0 and available with both polarities of Enable input. They offer current and thermal limiting 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 and MSOP-8EP packages. Pin Assignments SO-8 EN FLG GND NC 1 2 3 4 8 7 6 5 OUT IN OUT NC N EW PRODUCT Features • • • • • • • • • • • • • • • • Notes: Single USB port power switches Over-current and thermal protection 0.8A accurate current limiting Reverse Current Blocking 90mΩ on-resistance Input voltage range: 2.7V – 5.5V 0.6ms typical rise time Very low shutdown current: 1uA (max) Fault report (FLG) with blanking time (7ms typ) ESD protection: 6KV HBM, 400V MM Active high (AP2155) or active low (AP2145) enable Ambient temperature range -40ºC to 85°C SO-8 and MSOP-8EP (Exposed Pad): 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 (Top View) MSOP-8EP EN FLG GND NC 1 2 3 4 8 7 6 5 OUT IN OUT NC (Top View) Applications • • • Consumer electronics – LCD TV & Monitor, Game Machines Communications – Set-Top-Box, GPS, Smartphone Computing – Laptop, Desktop, Servers, Printers, Docking Station, HUB 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. Typical Application Circuit Power Supply 2.7V to 5.5V 10k 10uF 0 .1uF FLG EN ON OFF GND IN OUT 0.1uF Load 120uF Available Options Part Number AP2145 AP2155 Channel 1 1 Enable pin (EN) Active Low Active High 1 of 13 www.diodes.com Current limit (typical) 0.8A 0.8A Recommended maximum continuous load current 0.5A 0.5A September 2010 © Diodes Incorporated AP2145/AP2155 Document number: DS32031 Rev. 2 - 2 AP2145/AP2155 0.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH WITH OUTPUT DISCHARGE Pin Descriptions Pin Name EN FLG GND NC OUT IN Pin Number 1 2 3 4, 5 6, 8 7 Descriptions Enable input, active low (AP2145) or active high (AP2155) Over-current and over-temperature fault report; open-drain flag is active low when triggered Ground No internal connection Voltage output pin (all OUT pins must be tied together externally) Voltage input pin N EW PRODUCT Functional Block Diagram AP2145, AP2155 IN Current Sense OUT UVLO Driver Current Limit 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 6 400 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) AP2145/AP2155 Document number: DS32031 Rev. 2 - 2 2 of 13 www.diodes.com September 2010 © Diodes Incorporated AP2145/AP2155 0.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH WITH OUTPUT DISCHARGE Recommended Operating Conditions Symbol VIN IOUT TA Parameter Input voltage Output Current Operating Ambient Temperature Min 2.7 0 -40 Max 5.5 500 85 Unit V mA °C Electrical Characteristics (TA = 25oC, VIN = +5.0V, unless otherwise stated) N EW PRODUCT Symbol VUVLO ISHDN IQ ILEAK IREV Parameter Input UVLO Input Shutdown Current Input Quiescent Current Input Leakage Current Reverse Leakage Current Rload=1kΩ Disabled, OUT = open Enabled, OUT = open Disabled, OUT grounded Disabled, VIN= 0V, VOUT= 5V, IREV at VIN VIN = 5V, IOUT= 0.5A, o o 40 C≤ TA ≤85 C MSO-8-EP SO-8 -1 1 90 95 120 0.7 0.6 0.8 1.0 10 0.8 2 1 1 0.05 0.6 0.01 0.05 20 1 4 7 135 25 110 60 o o Test Conditions Min 1.6 Typ. 1.9 0.5 45 Max 2.5 1 70 1 140 140 160 Unit V μA μA μA μA mΩ mΩ mΩ A RDS(ON) Switch on-resistance ISHORT ILIMIT ITrig TSHORT VIL VIH ISINK IO-LEAK TD(ON) TR TD(OFF) TF RFLG IFLG TBlank TSHDN THYS Short-Circuit Current Limit Over-Load Current Limit Current limiting trigger threshold VIN = 3.3V, IOUT= 0.5A, -40oC≤ TA ≤85oC Enabled into short circuit, CIN=10μF, CL=100μF VIN= 5V, VOUT= 4.5V, CIN=10μF, CL=100μF, 40oC≤ TA ≤85oC 1.0 A A μs V V μA μA ms ms ms ms Ω μA ms °C °C C/W C/W Output Current Slew rate (