AP3409 DIODES | Alldatasheet
Document overview
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Technical content
Features
Input Voltage Range: 2.6V to 5.5V Adjustable Output from 0.8V to 5V 0.8V Reference Voltage with ± 2% Precision Output Current: 3A High Efficiency up to 95% Low RDSON Internal Switches Programmable Frequency: 300kHz to 4MHz Current Mode Control Forced Continuous-mode Operation 100% Duty Cycle Built-in Soft-start Built-in Short Circuit Protection Built-in Thermal Shutdown Protection Built-in Current Limit Function PGOOD Output Voltage Monitoring (For AP3409A) U-DFN3030-10 package Totally Lead-free & Fully RoHS Compliant (Note 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Pin Assignments (Top View) U-DFN3030-10 (DN Package) For AP3409 (Top View) U-DFN3030-10 (DN Package) For AP3409A
Applications
Portable Media Player Digital Still and Video Cameras Notebook Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Hal ogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. SHDN/RT GND SW SW PGND COMP FB VDD PVDD PVDD Pin 1 Mark 5 6 Exposed Pad Connected to PGND SHDN/RT GND SW SW PGND COMP FB PGOOD VDD PVDD Pin 1 Mark 5 6 Exposed Pad Connected to PGND
Document number: DS36789 Rev. 2 - 2 2 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated Typical Applications Circuit (Note 4) AP3409 SHDN/RT GND SW PGND COMP FB VDD PVDD VIN ROSC 330k L1 2.0mH CIN 22mF 22pF COUT 22mF ×2 510k R2 240k CCOMP 1000pFRCOMP 30k VOUT 2.5V/3A Typical Application of AP3409 AP3409A SHDN/RT GND SW PGND COMP FB PGOOD VDD (PVDD) VIN ROSC 330k L1 2.0mH CIN 22mF 22pF COUT 22mF ×2 510k R2 240k CCOMP 1000pFRCOMP 30k VOUT 2.5V/3A 100k Typical Application of AP3409A Notes 4: )21( R RRVV FB OUT
Document number: DS36789 Rev. 2 - 2 3 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated Pin Descriptions Pin Number Pin Name Function AP3409 AP3409A 1 1 SHDN/RT Oscillator resistor input. Connect a resistor to GND from this pin to set the switching frequency. Forcing this pin to VDD to shutdown the device 2 2 GND Signal ground. All small -signal ground, such as the compensation components and exposed pad should be connected to this, which in turn connects to PGND at one point 3, 4 3, 4 SW Internal power switch output. Connect this pin with one terminal of the inductor 5 5 PGND Power ground. Connect this pin as close as possible to CIN and COUT 6, 7 6 PVDD Power Input Supply. Decouple this pin to PGND with a capacitor 8 7 VDD Signal input supply. Decouple this pin to GND with a capacitor. Normally VDD is equal to VPVDD – 8 PGOOD Power good indicator. This pin is open -drain logic output that is pulled to ground when the output voltage is not within ± 12.5% of regulation point 9 9 FB Feedback voltage. This pin is the inverting input of internal error amplifier. It senses the converter output voltage through an external resistor divider. The internal reference vo ltage is 0.8V, which determines the output voltage through the resistor divider 10 10 COMP Compensation input. This pin is the output of internal error amplifier. Connect external compensation elements to this pin to stabilize the control loop Functional Block Diagram SD Oscillator SUM CS 0.8V EA OCP Driver Control Logic OTPUVLOVREF 0.4V SHDN/RT PVDD SW GND PGND VDD FB COMP 3, 4 6, 7 PWM Clamp SS DC Functional Block Diagram of AP3409
Document number: DS36789 Rev. 2 - 2 4 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated Functional Block Diagram (Cont.) SD Oscillator SUM CS 0.8V EA OCP Driver Control Logic OTPUVLO 0.4V SHDN/RT PVDD SW GND PGND VDD FB COMP 3, 4 PWM Clamp SS DC PGOOD VREF 0.725V 0.9V Functional Block Diagram of AP3409A Absolute Maximum Ratings (Note 5) Symbol Parameter Rating Unit VDD VDD Pin Voltage -0.3 to 6 V VPVDD PVDD Pin Voltage -0.3 to 6 V VFB FB Pin Voltage -0.3 to 6 V VCOMP COMP Pin Voltage -0.3 to 6 V VSW SW Pin Voltage -0.3 to VIN+0.3 V VRT SHDN/RT Pin Voltage -0.3 to 6 V θJA Thermal Resistance (Junction to Ambient) 110 º C/W θJC Thermal Resistance (Junction to Case) 3 º C/W TJ Operating Junction Temperature +150 ºC TSTG Storage Temperature -65 to +150 ºC TLEAD Lead Temperature (Soldering, 10 sec) +260 ºC – ESD (Machine Model) 200 V – ESD (Human Body Model) 2000 V Note 5: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are str ess ratings only, and functional operation of the device at these or any other conditions beyond those indicated u nder “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Document number: DS36789 Rev. 2 - 2 5 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated Recommended Operating Conditions Symbol Parameter Min Max Unit VIN Input Voltage 2.6 5.5 V IOUT (MAX) Maximum Output Current 3 – A TJ Operating Junction Temperature -40 +125 ºC Electrical Characteristics (VIN=VDD=VPVDD=3.3V, TA=+25oC, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit INPUT SECTION VDD Input Voltage Range 2.6 – 5.5 V IQ Supply Current VFB=0.75V, No Switching – 460 – µA ISHDN Shutdown Supply Current Shutdown, VIN=5.5V – – 1 µA VUVLO Under Voltage Threshold Lockout VDD Rising – 2.2 – V VHUVLO Under Voltage Hysteresis Lockout – – 300 – mV FEEDBACK SECTION VFB Feedback Voltage – 0.784 0.8 0.816 V IFB FB Pin Bias Current – – 0.1 0.4 µA RT Current Sense Trans-resistance – – 0.2 – – Switching Leakage Current VSHDN/RT=VIN=5.5V – – 1 µA GV Error Gain Amplifier Voltage – – 800 – – GS Error Amplifier Trans-conductance – – 800 – µA/V OSCILLATOR SECTION VRT RT Pin Voltage – 0.76 0.8 0.84 V fOSC Switching Frequency ROSC 0.8 1 1.2 MHz ADJ Frequency 0.3 – 4 MHz DMAX Maximum Duty Cycle VFB=0.75V 100 – – % POWER SWITCH SECTION ILIMIT Switch Current Limit AP3409 VFB=0.75V 3.2 4.2 – A AP3409A 3.5 4.2 – A RPDSON Internal P-FET On Resistance ISW=500mA – 0.11 0.16 Ω RNDSON Internal N-FET On Resistance ISW=-500mA – 0.11 0.17 Ω SHDN/RT SECTION – Shutdown Threshold – – VDD-0.7 VDD-0.4 V PGOOD SECTION (Only for AP3409A) – PGOOD Voltage Range – – ± 12.5 ± 15 % – PGOOD Pull Down Resistance – – – 120 Ω TOTAL DEVICE IOUT Output Current VDD=2.6V to 5.5V, VOUT=2.5V 3 – – A LNR Output Voltage Line Regulation VDD=2.7V to 5.5V, IOUT=100mA – 0.4 – %/V LOD Output Voltage Load Regulation IOUT=0.01A to 3A – ± 0.2 – % tSS Soft-start Time IOUT＝10mA – 1.5 – ms TOTSD Thermal Shutdown Temperature – – +160 – ºC THYS Thermal Shutdown Temperature Hysteresis – – +20 – ºC
Document number: DS36789 Rev. 2 - 2 6 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated 100 200 300 400 500 600 Supply Current (mA) Input Voltage (V) VFB=0.75V -60 -30 0 30 60 90 120 150 100 200 300 400 500 600 700 Supply Current (mA) Ambient Temperature ( o VIN=3.3V VFB=0.75V Performance Characteristics (VIN=VDD=VPVDD=3.3V, TA=+25oC, unless otherwise specified.) Supply Current vs. Input Voltage Supply Current vs. Ambient Temperature Efficiency vs. Output Current PMOS ON Resistance vs. Ambient Temperature NMOS ON Resistance vs. Ambient Temperature Frequency vs. Ambient Temperature 0 500 1000 1500 2000 2500 3000 3500 100 Efficiency (%) Output Current (mA) VOUT=2.5V VIN=5.0V VIN=3.3V -60 -30 0 30 60 90 120 150 100 120 140 PMOS ON Resistance (m) Ambient Temperature ( O VIN=3.3V VFB=0.75V -60 -30 0 30 60 90 120 150 0.7 0.8 0.9 1.0 1.1 1.2 Frequency (MHz) Ambient Temperature ( O VIN=3.3V VOUT=2.5V -60 -30 0 30 60 90 120 150 100 120 140 NMOS ON Resistance (m) Ambient Temperature ( O VIN=3.3V VFB=0.85V
Document number: DS36789 Rev. 2 - 2 7 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated -60 -30 0 30 60 90 120 150 Current Limit (A) Ambient Temperature ( O VIN=3.3V VFB=0.75V Performance Characteristics (Cont. VIN=VDD=VPVDD=3.3V, TA=+25oC, unless otherwise specified.) VFB vs. Ambient Temperature Current Limit vs. Ambient Temperature Start-up from VIN (VIN=3.3V, VOUT=2.5V, IOUT=3A) Load Transient Response (VIN=3.3V, VOUT=2.5V, IOUT=0.5A to 3A) Short Circuit Protection (VIN=3.3V, VOUT=2.5V) Short Circuit Recovery (VIN=3.3V, VOUT=2.5V) -60 -30 0 30 60 90 120 150 0.5 0.6 0.7 0.8 0.9 VFB (V) Ambient Temperature ( O VIN=3.3V VOUT=2.5V VOUT (AC) 50mV/div IOUT 1A/div Time 200ms/div VSW 2V/div VOUT 2V/div IL 2A/div Time 1ms/div VOUT 1V/div IOUT 1A/div Time 4ms/div VOUT 1V/div IOUT 1A/div Time 4ms/div
Document number: DS36789 Rev. 2 - 2 8 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated
Ordering Information
TR : Tape & ReelA: AP3409A G1 : Green Product Name RoHS/GreenPackage DN: U-DFN3030-10 Blank: AP3409 Diodes IC’s Pb-free products with "G1" suffix in the part number, are RoHS compliant and green . Package Temperature Range Part Number Marking ID Packing U-DFN3030-10 -40 to +125C AP3409DNTR-G1 BDA 5000/Tape & Reel AP3409ADNTR-G1 BCA 5000/Tape & Reel Marking Information AP3409 (Top View) AP3409A (Top View) First Line: Logo and Marking ID Second and Third Lines: Date Code Y: Year WW: Work Week of Molding A: Assembly House Code XX: 7th and 8th Digits of Batch No. First Line: Logo and Marking ID Second and Third Lines: Date Code Y: Year WW: Work Week of Molding A: Assembly House Code XX: 7th and 8th Digits of Batch No.
Document number: DS36789 Rev. 2 - 2 9 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: U-DFN3030-10 2.900(0.114) 3.100(0.122) 2.900(0.114) 3.100(0.122) 1.500(0.059) 1.800(0.071) 0.200(0.008) 0.300(0.012) 0.500(0.020) TYP 0.250(0.010) 0.550(0.022) 0.000(0.000) 0.050(0.002) 2.300(0.090) 2.500(0.098) N1N5 N6 N10 Pin 1 Mark PIN #1 IDENTIFICATION See DETAIL A DETAIL A 12 12 Pin 1 options Symbol A min(mm) max(mm) min(inch) max(inch) Option 1 Option 2 0.700 0.570 0.800 0.630 0.028 0.022 0.031 0.025 min(mm) max(mm) min(inch) max(inch) 0.153 0.150 (Typ) 0.253 0.006 0.006 (Typ) 0.010 A
Document number: DS36789 Rev. 2 - 2 10 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated Suggested Pad Layout (1) Package Type: U-DFN3030-10 Y2 Y E Dimensions Y (mm)/(inch) (mm)/(inch) (mm)/(inch) (mm)/(inch) (mm)/(inch) E (mm)/(inch)
Document number: DS36789 Rev. 2 - 2 11 of 11 www.diodes.com January 2014 © Diodes Incorporated AP3409/A A Product Line of Diodes Incorporated IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license unde r its patent or trademark rights, nor the rights of others. Any Customer or user of th is document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diod es Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising ou t of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product nam es and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided i n the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support d evices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety -critical, life support devices or systems, notwithstanding any devices - or systems -related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2012, Diodes Incorporated www.diodes.com