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The Power to Amaze. FAIRCHILD TRAVEL ADAPTER SOLUTION Power Conversion 201406 Charger Market Demands Charger Market Demands : • Smaller form factor • Lower standby • Higher efficiency • Adaptive charging FCS’ Plan to Fulfill the Market : Pure PSR PSR+SSR FSEZ / FSR (MOS inside) SR Controller Adaptive Charging Lower Standby Power / High Frequency 2 Why Adaptive Charging be Needed 3.5” iPhone Retina iPhone Retina iPad FHD 6” Phone >FHD Tab - Bigger Battery - Longer charging • Customer Pain : • Long charging time • Customer’s Need : • To well charge a 3000mAh battery in 1 HOUR around 3 How to Solve The Pain • • • Generally, output voltage increasing for higher power delivery is better Therefore QCOM proposes QC2.0 for the pain and Mediatek proposes PumpExpress Briefing QC2.0 : – Up to 60W (5V/9V/12V/20V) over standard micro-USB hardware • Uses existing USB BC1.2 cables/ connectors • Backwards compatible with 5V USB BC1.2 • QC2.0’s Target : – To full charge a 3300mAh battery in ONE hour around Conventional USB Charging Quick Charging 4 The Power to Amaze. FSC CHARGER SOLUTION OUTLOOK FCS’s TA Solution Line Up Product Line Line Up Description Content FAN302HL FAN302UL HL : 85KHz DCM & UL : 140KHz DCM Fixed Frequency SOP8 •< 10mW standby power loss • CV dynamic > 4.85V • VSOVP latch to secure Vo<6V FAN501 140kHz@Low-L/85kHz@high-L Fixed frequency CCM PWM MLP4x3_10L & SOP8 • Good efficiency •10mW standby power • CV dynamic > 4.85V • VSOVP latch to secure Vo<6V • USUVP for USB cable soft short protection • SD pin for OTP (MLP only) FAN501A 140kHz@Low-L/85kHz@high-L Fixed frequency CCM PWM MLP4x3_10L FAN61x0 CV/CC Control Fast Charging Protocols MLP3x4_20L PSR+SSR Adaptive Charger •Good efficiency •<20mW standby power •Cable Compensation •Communication Protocol •FAN6100QMPX : QC2.0 •FAN6110MPX : QC2.0 & PumpExpress •TL-431 inside 6 Selection Guide • • • • Need #1 : New DOE & CoC requirement Need #2 : Adaptive Charging #1 #2 FAN302 QC2.0 • • More ≥10W for middle-end New DOE&COC required FAN501 QC2.0 ready for early adopter Multi-Protocol for platforms QC2.0 PumpExpress 7 New PWM---FAN501 • Major Targets on FAN501 : – CCM operation at high frequency for size reduction • High Line @ 85kHz for efficiency & EMI • Low Line @ 140kHz for transformer size reduction – 85k/140kHz fixed frequency for easier dealing CMN interference to touch panel – CCM operation to boost efficiency – SD for OTP to save external OTP circuit – FAN501MPX : with VSUVP (feasible for 3V UVLO charger design) – FAN501AMPX : without VSUVP (feasible for general 2V UVLO USB charger design) – 10mW standby power – MLP4x3 package – MP already 8 Frequency Operation – CV/CC regulation • CV regulation : 85kHz/140kHz Fixed frequency operation & burst mode - 140kHz operation @ low line allows deep CCM operation to reduce conduction loss - 85kHz operation @ high line reduces switching loss and better EMI - Fixed frequency to help deal with CMN interference to touch panel •CC regulation : frequency reduction with VO drop - At low line, frequency reduction from 140kHz to 50kHz. - At high line, frequency reduction from 85kHz to 30kHz. 9 VS OVP and Shunt-Down(SD) Protection VS OVP • VS OVP – VS pin monitors output voltage cycle by cycle through auxiliary winding divider resistor – As VS>2.8V with successive 7 cycles de-bounce time , VS OVP is triggered and controller enters latch mode Shunt-Down • Shunt-Down - SD pin flows out one constant current 100µA independent on temperature - Usually NTC thermistor connects to this pin for external overtemperature-protection - While SD pin voltage is less than 1.0V, SD function is triggered and controller enters latch mode 10 Our Adaptive TA Solution FAN61xxMPX – – Precise CV/CC regulation control Multiple adaptive protocols integrated • • – – – • Vin D+ FAN505 SSR CC D- D+ Mobile Device Cable - D- PWM Control Vo PSR OCP SSR Feedback FAN6100QMPX : QC2.0 FAN6110MPX : QC2.0 & PumpExpress 10x current sense amplifier to reduce the loss on sensing resistor Precise cable compensation UVP for >5V operation + Vo X10 • Mode Change CC Amp Mode Selector PSR OCP CV Amp SSR CV FAN61x FAN501AMPX – – – Perfectly working with FAN61xx mWSaverTM technology for <20mW standby CCM operation for high efficiency FAN61xxMPX MLP4x3_10L MLP3x4_20L 11 Detail about FSC’s Adaptive • Flexible Vo & Io Design • Variable CC • Fixed CC • Protocols integrated • QCOM QC2.0 (Vo : 5/9/12) • PumpExpress (Vo : 4~5/7/9/12) PumpExpress QC2.0 • FAN6100Q QCOM QC2.0 V FAN6110 • QCOM QC2.0 • MTK PumpExpress Various CC Fixed CC V 12V/1.25A 12V 12V 9V 9V 9V/1.67A 7V/1.8A 7V 7V 5V/2A 5V 5V I I 1.25A Fixed CC 1.67A 1.8A 2A Various CC 12 Precise Cable Compensation RCable CO1 CO2 CO3 RCS IO R RF 2 1 Cable RF 1 + RF 2 RCS K COMR VCOMR = 10 ∙ IO ∙ RCS ∙ RCOMR ∙ KCOMR ∙ (Rf1+Rf2)/Rf2 = 10 ∙ 2A ∙ 50mΩ ∙ 147kΩ ∙ 1uA/V ∙ (41.2kΩ +9.53kΩ)/9.53kΩ = 0.782V KCOMR is cable compensation design K value CSP X10 CSN VO_End RCOMR Cable Drop Compensation COMR RF1 RCOMR VREF RF2 Σ VCVR Mode 13 UVP to Deal with Soft Short V 9V 7V (soft short point) Foldback point I 0.32A • 1.8A To deal soft short issue, we can have UVP protection to help out • 5V output 3V foldback (Primary) • 7V output 5V soft short (Secondary) 3V foldback (Primary) • 9V output 7V soft short (Secondary) 3V foldback (Primary) 14 THANK YOU