AP2162A

AP2162A/AP2172A 1.0A DUAL CHANNEL CURRENT-LIMITED POWER SWITCH WITH OUTPUT DISCHARGE Description The AP2162A and AP2172A are dual 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 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 application 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 DFN3030E-8 packages. in SO-8, MSOP-8-EP and Pin Assignments ( Top View ) GND IN EN1 1 2 3 8 7 6 5 FLG1 OUT1 OUT2 FLG2 N EW PRODUCT EN2 4 SO-8 ( Top View ) GND IN EN1 EN2 1 2 3 4 8 7 6 5 FLG1 OUT1 OUT2 FLG2 Features • • • • • • • • • • • • • • • • Dual channel current-limited power switch with output discharge Fast short-circuit response time: 2µs 1.4A accurate current limiting Reverse Current Blocking 85mΩ on-resistance Input voltage range: 2.7V – 5.5V Built-in soft-start with 0.6ms typical rise time Short circuit and thermal protection Fault report (FLG) with blanking time (7ms typ) ESD protection: 2KV HBM, 300V MM Active high (AP2172A) or active low (AP2162A) enable Ambient temperature range: -40ºC to 85°C SO-8, MSOP-8-EP and DFN3030E-8 (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 MSOP-8-EP ( Top View ) GND IN EN1 EN2 1 2 3 4 8 7 6 5 FLG1 OUT1 OUT2 FLG2 DFN3030E-8 Applications • • • • LCD TVs & Monitors Set-Top-Boxes, Residential Gateways Laptops, Desktops, Servers, 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 17 www.diodes.com October 2010 © Diodes Incorporated Notes: AP2162A/2172A Document number: DS32192 Rev. 2 - 2 AP2162A/AP2172A 1.0A DUAL CHANNEL CURRENT-LIMITED POWER SWITCH WITH OUTPUT DISCHARGE Typical Application Circuit   AP 2172 A Enable Active High Power Supply 2.7V to 5.5V 10k 10k 1uF FLG 1 FLG 2 ON EN1 EN2 OUT2 1uF GND 10uF* Load IN OUT1 1uF 10uF* Load N EW PRODUCT OFF Note: * USB 2.0 requires 120μF per hub Available Options Part Number AP2162A AP2172A Channel 2 2 Enable pin (EN) Active Low Active High Current limit (typical) 1.4A 1.4A Recommended maximum continuous load current 1.0A 1.0A Pin Descriptions Pin Name GND IN EN1 EN2 FLG2 OUT2 OUT1 FLG1 Exposed Pad Pin Number 1 2 3 4 5 6 7 8 Ground Voltage input pin Switch 1 enable input, active low (AP2162A) or active high (AP2172A) Switch 2 enable input, active low (AP2162A) or active high (AP2172A) Switch 2 over-current and over-temperature fault report; open-drain flag is active low when triggered Switch 2 voltage output pin Switch 1 voltage output pin Switch 1 over-current and over-temperature fault report; open-drain flag is active low when triggered Internally connected to GND; recommend connecting to the GND externally for improved power dissipation Descriptions AP2162A/2172A Document number: DS32192 Rev. 2 - 2 2 of 17 www.diodes.com October 2010 © Diodes Incorporated AP2162A/AP2172A 1.0A DUAL CHANNEL CURRENT-LIMITED POWER SWITCH WITH OUTPUT DISCHARGE Functional Block Diagram AP2162A, AP2172A T h e rm a l S ense FLG 1 D e g litc h EN1 D riv e r U VLO C u rre n t L im it GND N EW PRODUCT C u rre n t S ense D is c h a rg e C o n tro l OUT1 IN C u rre n t S ense D is c h a rg e C o n tro l D riv e r C u rre n t L im it D e g litc h OUT2 U VLO FLG 2 EN2 T h e rm a l S ense 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 Units 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 AP2162A/2172A Document number: DS32192 Rev. 2 - 2 Parameter Input voltage Output Current Operating Ambient Temperature 3 of 17 www.diodes.com Min 2.7 0 -40 Max 5.5 1.0 85 Units V A °C October 2010 © Diodes Incorporated AP2162A/AP2172A 1.0A DUAL CHANNEL CURRENT-LIMITED POWER SWITCH WITH OUTPUT DISCHARGE Electrical Characteristics (TA = 25oC, VIN = +5.0V, unless otherwise stated) Symbol VUVLO ISHDN IQ ILEAK IREV Parameter Input UVLO Input Shutdown Current Input Quiescent Current, Dual Input Leakage Current Reverse Leakage Current Test Conditions (Note 3) Disabled, IOUT= 0 Enabled, IOUT= 0 Disabled, OUT grounded Disabled, VIN = 0V, VOUT = 5V, IREV at VIN VIN = 5V, IOUT = 1A, SO-8 TA = 25oC MSOP-8-EP, DFN3030E-8 VIN = 5V, IOUT = 1A, -40oC≤ TA ≤ 85oC SO-8 VIN = 3.3V, IOUT = 1A, o TA = 25 C MSOP-8-EP, DFN3030E-8 VIN = 3.3V, IOUT = 1A, -40oC≤ TA ≤ 85oC VIN = 5V, VOUT = 4V, o o -40 C≤ TA ≤ 85 C CL=10μF VIN = 5V, VOUT = 4.8V, OUT1 & OUT2 tied -40oC≤ TA ≤ 85oC together, CL=10μF Output Current Slew rate (