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FAN6100M Secondary-Side Constant Voltage and Constant Current Controller Compatible with MediaTek Pump ExpressTM Plus Description Features Supports MediaTek Pump Express Plus and Fairchild’s FCP-Single communication protocol Specifications Secondary-Side Constant Voltage (CV) and Constant Current (CC) Regulation Built-in Charge-Pump Circuit for Low Output Voltage Operation TM Internal, Accurate, Adaptive CV/CC Reference Voltage Low-Value Current Sensing Resistor for High Efficiency Programmable Cable Voltage Drop Compensation Two Operational Transconductance Amplifiers with Open-Drain Type for Dual-Loop CV/CC Control Compatible with Fairchild’s FAN501A Adaptive Secondary-Side Output Over-Voltage Protection through Photo-Coupler Output Under-Voltage Protection Low Quiescent Current Consumption in Green Mode < 850 µA Wide VIN Supply Voltage Range Available in 20-Pin 3 x 4 mm MLP Package Applications Battery Chargers for quick charge application AC/DC Adapters for Portable Devices that Require CV/CC Control The FAN6100M is a highly integrated secondary side constant voltage and constant current controller that is compatible with MediaTek Pump ExpressTM Plus and Fairchild’s FCP-Single communication protocol specifications. It is designed for use in application that requires Constant Voltage (CV) and Constant Current (CC) regulation. The controller consists of two operational amplifiers for voltage and current loop regulation with adjustable reference voltage. The CC control loop also incorporates a current sense amplifier with gain of 10. Outputs of the CV and CC amplifiers are tied together in open drain configuration. The FAN6100M enables power adaptor’s output voltage adjustment if it detects a protocol capable powered device. It can be capable of outputting 5 V at the beginning, and then 7 V, 9 V or 12 V to meet requirements of a high voltage dedicated charging port (HVDCP) power supply or 4.8 V, 4.6 V, 4.4 V, 4.2 V or 4 V to maximize the charging current which is controlled by the power adaptor. If a non compliant powered device is detected, the controller disables output voltage adjustment to ensure safe operation with smart phones and tablets that support only 5 V. FAN6100M also incorporates an internal charge pump circuit to maintain CC regulation down to the power supply’s output voltage, Vbus of 2 V without an external voltage supply to the IC. Programmable cable voltage drop compensation allows precise CV regulation at end of USB cable via adjusting one external resistor. The device is available in the 20-pin MLP 3 x 4 package. All trademarks are the property of their respective owners. Ordering Information Part Number Operating Temperature Range Package Packing Method FAN6100MMPX -40C to +125C 20-Lead, MLP, QUAD, JEDEC MO-220, 3 mm x 4 mm, 0.5 mm Pitch, Single DAP Tape & Reel © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com FAN6100M — Secondary-Side CV /CC Controller Compatible with MediaTek Pump ExpressTM Plus March 2015 VO D+ D- AC IN GND 8 7 U1 FAN501A 6 4 5 10 1 9 2 11 10 9 2 1 3 3 12 18 13 U2 FAN6100M 19 15 17 14 16 6 5 4 8 20 7 Figure 1. Typical Application Internal Block Diagram OVP VIN CP CN VDD Voltage Magement with Charge Pump Mode Condition VIN-OVP 3.65/3.25V 6.4/6.2V Mode Condition Internal Bias 0.495V/0.37V VIN-UVP SFB VREF Cable Voltage Drop Compensation Σ COMR Mode Condition VCVR IREF CSN AVCCR CSP VIN UVP Protection Multiplier Mode Condition BLD VCCR PGND Mode Communication Constant Current Mode Selection SGND QP QN DP DN Figure 2. Function Block Diagram © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 2 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Application Diagram FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Marking Information F- Fairchild Logo Z: Assembly Plant Code X: Year Code Y: Week Code TT: Die Run Code T: Package Type (MP=MLP) M: Manufacture Flow Code ZXYTT 6100M TM Figure 3.Top Mark © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 3 NC CN CP VDD 20 19 18 17 VIN 1 16 PGND BLD 2 15 QP OVP 3 14 QN FAN6100M IREF 4 13 DN SFB 5 12 DP VREF 6 11 SGND 7 8 9 10 SGND COMR CSP CSN Figure 4. Pin Assignments Pin Definitions Pin # Name Description 1 VIN Input Voltage Detection. This pin is tied to output terminal of the power adaptor to monitor output voltage and supply internal charge pump circuit. 2 BLD Output Bleeder Current Setting. This pin connects to output terminal of the power adaptor via an external resistor to form an output discharging path when mode changes from high-output voltage to low-output voltage. 3 OVP Output Over-Voltage-Protection. This pin is used for adaptive output over-voltage protection. Typically an opto-coupler is connected to this pin to generate pull-low protection signal. 4 IREF Reference Output Current Sensing Voltage. The voltage is the amplifying output current sensing voltage. This pin is tied to the internal CC loop amplifier positive terminal. 5 SFB Secondary-Side Feedback Signal. Common output terminal of the dual operational transconductance amplifiers with open drain operation. Typically an opto-coupler is connected to this pin to provide feedback signal to the primary-side PWM controller. 6 VREF Reference Output Voltage Sensing Voltage. This pin is used to sense the output voltage for CV regulation via resistor divider. It is tied to the internal CV loop amplifier positive terminal. 7 SGND Signal Ground. 8 COMR Programmable Cable-Drop Voltage Compensation. An external resistor is connected to this pin to adjust output voltage compensation weighting. 9 CSP Positive Terminal of Output Current Sensing Amplifier. This pin connects directly to the positive voltage terminal of the current sense resistor. CSP need to be tied to ground of power adaptor via short PCB trace. 10 CSN Negative Terminal of Output Current Sensing Amplifier. This pin connects directly to the negative voltage terminal of the current sense resistor. CSN need to be tied to negative terminal of output capacitor via short PCB trace. 11 SGND Signal Ground. 12 DP Positive Terminal of Communication Interface. This pin is tied to the USB D+ data line input. 13 DN Negative Terminal of Communication Interface. This pin is tied to the USB D- data line input. 14 QN LSB Switch for Mode Selection of Output Current. 15 QP MSB Switch for Mode Selection of Output Current. 16 PGND 17 VDD 18 CP Positive Voltage Terminal of Charge Pump. 19 CN Negative Voltage Terminal of Charge Pump. An external capacitor is necessary to be connected between CP pin and CN pin. 20 NC No Connect Power Ground. Power Supply. IC operating current is supplied through this pin. This pin is typically connected to an external VDD capacitor. © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 4 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Pin Configuration Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Min. Max. Unit VVIN VIN Pin Input Voltage 20 V VBLD BLD Pin Input Voltage 20 V VOVP OVP Pin Input Voltage 20 V VSFB SFB Pin Input Voltage -0.3 20 V VIREF IREF Pin Input Voltage -0.3 6.0 V VVREF VREF Pin Input Voltage -0.3 6.0 V VCOMR COMR Pin Input Voltage -0.3 6.0 V VCSP CSP Pin Input Voltage -0.3 6.0 V VCSN CSN Pin Input Voltage -0.3 6.0 V VDP DP Pin Input Voltage -0.3 6.0 V VDN DN Pin Input Voltage -0.3 6.0 V VQN QN Pin Input Voltage -0.3 6.0 V VQP QP Pin Input Voltage -0.3 6.0 V VDD VDD Pin Input Voltage -0.3 6.0 V VCP CP Pin Input Voltage -0.3 6.0 V VCN CN Pin Input Voltage -0.3 6.0 V PD Power Dissipation (TA=25C) 0.88 W θJA Thermal Resistance (Junction-to-Air) 110 C/W TJ Junction Temperature -40 +150 C Storage Temperature Range -40 +150 C +260 C TSTG TL ESD Lead Temperature, (Wave Soldering or IR, 10 Seconds) Electrostatic Discharge Capability Human Body Model, JEDEC:JESD22_A114 2.0 Charged Device Model, JEDEC:JESD22_C101 2.0 kV Note: 1. All voltage values, except differential voltages, are given with respect to GND pin. Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Min. Max. Unit Junction Temperature -40 +125 C VDD-OP VDD Operating Voltage 3.12 6.00 V VIN-OP VIN Operating Voltage 16 V TJ Parameter © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 5 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Absolute Maximum Ratings Recommended operating conditions, unless otherwise noted. Symbol Parameter Conditions Min. Typ. Max. Unit VIN Section IIN-OP-LV Operating Supply Current at 5 V (5 V, 4.8 V, 4.6 V, 4.4 V, 4.2 V, 4 V) VIN=5 V, VCSP=100 mV, VCSN=0V 2.4 3.2 mA IIN-OP-HV Operating Supply Current Over 5 V (7 V, 9 V, 12 V) VIN=12 V, VCSP=100 mV, VCSN=0 V 1.2 2.0 mA IIN-Green Green Mode Operating Supply Current VIN=5 V, VCSP=VCSN=0 V 850 1050 µA Startup Current VIN=1 V, VCSP=100 mV, VCSN=0 V 15 µA IIN-ST VIN-UVP-L-LV VIN Under-Voltage-Protection Enable Voltage under 5V 2.35 2.50 2.65 V VIN-UVP-H-LV VIN Under-Voltage-Protection Disable Voltage under 5V 2.85 3.00 3.15 V VIN-UVP-L-7V VIN Under-Voltage-Protection Enable Voltage at 7 V 5.05 5.25 5.45 V VIN-UVP-H-7V VIN Under-Voltage-Protection Disable Voltage at 7 V 5.75 5.95 6.15 V VIN-UVP-L-9V VIN Under-Voltage-Protection Enable Voltage at 9 V 6.50 6.75 7.00 V VIN-UVP-H-9V VIN Under-Voltage-Protection Disable Voltage at 9 V 7.40 7.65 7.90 V VIN-UVP-L-12V VIN Under-Voltage-Protection Enable Voltage at 12 V 8.70 9.00 9.30 V VIN-UVP-H-12V VIN Under-Voltage-Protection Disable Voltage at 12 V 9.85 10.20 10.55 V tD-VIN-UVP VIN Under-Voltage-Protection Debounce Time 10 15 20 VIN-EN-L Charge-Pump Enable Threshold Voltage 1.5 2.0 2.5 VIN-CP Charge Pump Disable Threshold Voltage 6.20 6.40 6.60 ms V V VIN-CP-Hys Hysteresis Voltage for Charge Pump Disable Threshold Voltage VIN-OVP-LV VIN Over-Voltage-Protection Voltage under 5 V VIN-OVP-7V VIN Over-Voltage-Protection Voltage at 7 V 8.10 8.70 V 0.20 5.80 6.00 8.40 V 6.20 V VIN-OVP-9V VIN Over-Voltage-Protection Voltage at 9 V 10.50 10.80 11.10 V VIN-OVP-12V VIN Over-Voltage-Protection Voltage at 12 V 14.00 14.40 14.80 V tD-VIN-OVP VIN Over-Voltage-Protection Debounce Time 16 28 40 μs VDD Section VDD-ON Turn-on Threshold Voltage 3.50 3.65 3.80 V VDD-OFF Turn-off Threshold Voltage 3.12 3.25 3.38 V 120 125 130 kHz fS-CP (2) Charge Pump Switching Frequency Continued on the following page… © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 6 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Electrical Characteristics Recommended operating conditions, unless otherwise noted. Symbol Parameter Conditions Min. Typ. Max. Unit CC Mode Selection Section QP/QN-VR QP=0 and QN=0 QP/QN State for Variable CC Mode QP/QN-FIX-1.5A QP/QN State for Fixative 1.5 A CC Mode QP=0 and QN=1 QP/QN-FIX-2.0A QP/QN State for Fixative 2.0 A CC Mode QP=1 and QN=0 QP/QN-CLPM tD_Mode QP=1 and QN=1 QP/QN State for Current Limit Protection Mode CC Mode Selection De-bounce Time 3.5 4.0 4.5 ms 9.7 10.0 10.3 V/V Constant Current Sensing Section AV-CCR (3) Output Current Sensing Amplifier Gain VCCR-VR-5V Reference Voltage for Constant Current Regulation at Variable CC 5 V Mode 1.155 1.200 1.245 V VCCR-VR-7V Reference Voltage for Constant Current Regulation at Variable CC 7 V Mode 1.005 1.050 1.095 V VCCR-VR-9V Reference Voltage for Constant Current Regulation at Variable CC 9 V Mode 0.920 0.960 1.000 V VCCR-VR-12V Reference Voltage for Constant Current Regulation at Variable CC 12 V Mode 0.685 0.715 0.745 V VCCR-FIX-1.5A Reference Voltage for Constant Current Regulation at Fixative 1.5 A CC Mode 0.835 0.870 0.905 V VCCR-FIX-1.5A-12V Reference Voltage for Constant Current Regulation at Fixative 1.5 A CC 12 V Mode 0.635 0.660 0.685 V VCCR-FIX-2.0A Reference Voltage for Constant Current Regulation at Fixative 2.0 A CC Mode 1.155 1.200 1.245 V VCCR-FIX-2.0A-12V Reference Voltage for Constant Current Regulation at Fixative 2.0 A CC 12 V Mode 0.865 0.900 0.935 V AV-CCR-Protection AV-CCR-UVP Constant Current Attenuator for Current Limit Protection Mode Constant Current Attenuator for VIN Under-Voltage Protection 0.125 V/V 0.125 V/V VGreen-H Green Mode Disable Threshold Voltage 0.400 0.495 0.590 V VGreen-L Green Mode Enable Threshold Voltage 0.34 V tGreen-BLANK (3) Green Mode Blanking Time at Startup 0.37 40 0.40 ms Continued on the following page… © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 7 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Electrical Characteristics Recommended operating conditions, unless otherwise noted. Symbol Parameter Conditions Min. Typ. Max. Unit Constant Voltage Sensing Section VCVR-4V Reference Voltage for Constant Voltage Regulation at 4 V 0.770 0.800 0.830 V VCVR-4.2V Reference Voltage for Constant Voltage Regulation at 4.2 V 0.810 0.840 0.870 V VCVR-4.4V Reference Voltage for Constant Voltage Regulation at 4.4 V 0.850 0.880 0.910 V VCVR-4.6V Reference Voltage for Constant Voltage Regulation at 4.6 V 0.890 0.920 0.950 V VCVR-4.8V Reference Voltage for Constant Voltage Regulation at 4.8 V 0.930 0.960 0.990 V VCVR-5V Reference Voltage for Constant Voltage Regulation at 5 V 0.980 1.000 1.020 V VCVR-7V Reference Voltage for Constant Voltage Regulation at 7 V 1.375 1.400 1.425 V VCVR-9V Reference Voltage for Constant Voltage Regulation at 9 V 1.765 1.800 1.835 V VCVR-12V Reference Voltage for Constant Voltage Regulation at 12 V 2.355 2.400 2.445 V Cable Drop Compensation Section KCOMR-CDC Design Parameter for Cable-Drop Voltage Compensation 0.90 1.00 1.10 µA/V Constant Current Amplifier Section Gm-CC fP-CC RCC-IN-CC CC Amplifier Transconductance (3) (3) CC Amplifier Dominate Pole (3) CC Amplifier Input Resistor 8.50 3.5 S 10 kHz 13.75 19.00 kΩ Constant Voltage Amplifier Section Gm-CV fP-CV IBias-IN-CV CV Amplifier Transconductance (3) (3) CV Amplifier Dominate Pole CV Amplifier Input Bias Current 3.5 S 10 kHz (3) 30 nA 700 mA 350 ms Output Bleeder Section (3) IBLD Output Bleeder Current tBLD Output Bleeder Current Discharging Time 100 290 320 Secondary-Side Feedback Section ISFB-Sink-MAX Maximum SFB Pin Sink Current (3) 2 mA 2 mA OVP Section IOVP-Sink-MAX Maximum OVP Pin Sink Current Continued on the following page… © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 8 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Electrical Characteristics Recommended operating conditions, unless otherwise noted. Symbol Parameter Conditions Min. Typ. Max. Unit FCP-Single Protocol Section VDPL DP Low Threshold Voltage BC1.2 Detection 0.23 0.25 0.27 V VDNL DN Low Threshold Voltage BC1.2 Detection 0.30 0.35 0.40 V tBC1.2 DP/DN High Debounce Time 1.0 1.5 S RDP DP Resistance 300 700 kΩ RDN DN Pull-Low Resistance tTOGGLE DN Low Debounce Time after BC1.2 Detection VDN_HI DN High Threshold Voltage VDN_LO TDN_FLT TSTART T5V_LS DN Low Threshold Voltage 500 14.25 19.53 24.80 1 (3) 1 DN Detection Debounce Time ms V (3) 0.5 (3) kΩ 50 V µs Minimum Low in the Beginning of Control Signal 20 ms Low-Speed Mode - Period for Voltage Reset to 5 V 8 10 12 ms 13.3 15.3 17.3 ms TSV+ _LS Low-Speed Mode - Period for Voltage Increase T5V_HS High-Speed Mode - Period for Voltage Reset to 5 V 77 102 127 µs High-Speed Mode - Period for Voltage Increase 157 182 206 µs TSV+ _HS Pump Express Protocol Section tON_CCA Current Control Pattern Timing On Time (A) (3) 410 500 600 ms tON_CCB Current Control Pattern Timing On Time (B) (3) 220 300 370 ms Current Control Pattern Timing On Time (C) (3) 50 100 150 ms Current Control Pattern Timing Off Time (D) (3) 50 100 150 ms 9.3 13.3 17.3 mV tON_CCC tON_CCD (3) VREF_H_PE Current Sense High Threshold Voltage VREF_Hys Hysteresis for Current Sense Low signal (3) Detection TWDT Max. Current Control Low Current is 130 mA and Min. Current Control High Current is 350 mA 2 (3) Current Plug-Out Detection Debounce Time 180 mV 240 ms Notes: 2. Guaranteed for temperature range -5°C ~85°C. 3. Guaranteed by design. © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 9 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Electrical Characteristics Figure 5.VDD Turn-On Threshold Voltage (VDD-ON) vs. Temperature Figure 6.VDD Turn-Off Threshold Voltage (VDD-OFF) vs. Temperature Figure 7. Operating Current Under 5 V (IIN-OP-LV) vs. Temperature Figure 8. Operating Current Over 5 V (IIN-OP-HV) vs. Temperature Figure 9. Reference Voltage for CC Regulation at Variable CC 5 V Mode (VCCR-VR-5V) vs. Temperature © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 Figure 10. Reference Voltage for CC Regulation at Variable CC 7V Mode (VCCR-VR-7V) vs. Temperature www.fairchildsemi.com 10 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Typical Performance Characteristics Figure 11. Reference Voltage for CC Regulation at Variable CC 9 V Mode (VCCR-VR-9V) vs. Temperature Figure 12. Reference Voltage for CC Regulation at Variable CC 12 V Mode (VCCR-VR-12V) vs. Temperature Figure 13. Reference Voltage for CC Regulation at Fixative 1.5 A CC Mode (VCCR-FIX-1.5A) vs. Temperature Figure 14. Reference Voltage for CC Regulation at Fixative 1.5 A CC 12 V Mode (VCCR-FIX-1.5A-12V) vs. Temperature Figure 15. Reference Voltage for CC Regulation at Fixative 2.0 A CC Mode (VCCR-FIX-2.0A) vs. Temperature Figure 16. Reference Voltage for CC Regulation at Fixative 2.0 A CC 12 V Mode (VCCR-FIX-2.0A-12V) vs. Temperature © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 11 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Typical Performance Characteristics Figure 17. Reference Voltage for CV Regulation at 4 V (VCVR-4V) vs. Temperature Figure 18. Reference Voltage for CV Regulation at 4.2 V (VCVR-4.2V) vs. Temperature Figure 19.Reference Voltage for CV Regulation at 4.4 V (VCVR-4.4V) vs. Temperature Figure 20. Reference Voltage for CV Regulation at 4.6 V (VCVR-4.6V) vs. Temperature Figure 21. Reference Voltage for CV Regulation at 4.8 V (VCVR-4.8V) vs. Temperature Figure 22. Reference Voltage for CV Regulation at 5 V (VCVR-5V) vs. Temperature © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 12 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Typical Performance Characteristics Figure 23. Reference Voltage for CV Regulation at 7 V (VCVR-7V) vs. Temperature Figure 24. Reference Voltage for CV Regulation at 9 V (VCVR-9V) vs. Temperature Figure 25.Reference Voltage for CV Regulation at 12 V (VCVR-12V) vs. Temperature Figure 26. VIN OVP Voltage Under 5 V (VIN-OVP-LV) vs. Temperature Figure 27. VIN OVP Voltage at 7 V (VIN-OVP-7V) vs. Temperature Figure 28. VIN OVP Voltage at 9 V (VIN-OVP-9V) vs. Temperature © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 13 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Typical Performance Characteristics Figure 29. VIN UVP Disable Voltage at 9 V (VIN-UVP-H-9V) vs. Temperature Figure 30. VIN UVP Enable Voltage at 12 V (VIN-UVP-L-12V) vs. Temperature Figure 31.VIN UVP Disable Voltage at 12 V (VIN-UVP-H-12V) vs. Temperature Figure 32. Charge Pump Disable Threshold Voltage (VIN-CP) vs. Temperature Figure 33. DP Low Level Threshold Voltage (VDPL) vs. Temperature Figure 34. DN Low Level Threshold Voltage (VDNL) vs. Temperature © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 14 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Typical Performance Characteristics The highly integrated secondary-side power Constant Voltage and Constant Current Controller FAN6100M is TM compatible with MediaTek Pump Express Plus fastcharging and Fairchild’s own FCP-Single communication protocol for quick charger applications. It can be an optimal solution for quick charger requirement. The FAN6100M enables power supply’s output voltage adjustment if it detects a protocol capable mobile phone and/ or tablet. When a compliant powered device is detected, the FAN6100M will produce BC1.2 procedure then will be ready to acknowledge which protocol comes in. At that moment Output voltage is generated to 5 V as default and then changes to 7 V, 9 V or 12 V to meet quick charger requirements of HVDCP power supplies. These voltages are based on the capabilities of the downstream device. The downstream device requests an output voltage for the HVDCP power supply. If a non compliant powered device is detected, the controller disables adaptive output voltage to ensure safe operation with smart phones and tablets that support only 5 V. Constant-Voltage Regulation Operation Figure 35 shows the primary-side internal PWM control circuit of the FAN501A and secondary side regulator circuit of the FAN6100M which consists of two operational amplifiers for constant voltage (CV) and constant current (CC) regulation with adjustable voltage references. The constant voltage (CV) regulation is implemented in the same way as the conventional isolated power supply. Output voltage is sensed on the VREF pin via the resistor divider, RF1 and RF2 and compared with the internal reference voltage for constant voltage regulation (VCVR) to generate a CV compensation signal (COMV) on the SFB pin. The compensation signal is transferred to the primary-side using an opto-coupler and applied to the PWM comparator through attenuator Av to determine the duty cycle. Constant-Current Regulation Operation The constant current (CC) regulation is implemented with sensing the output current. The output current is sensed via the current-sense resistor (RCS) connected between the CSP and CSN pins and placed on the output ground return path. The sensed signal is amplified by internal current sensing amplifier AV-CCR before the amplified current feedback signal is fed into the positive terminal of the internal operational amplifier and compared with the internal reference voltage for constant current regulation (VCCR) to generate a CC compensation signal (COMI) on the SFB pin. The compensation signal is transferred to the primary-side using an opto-coupler to the primary-side PWM controller. The controller consists of two operational amplifiers for constant voltage (CV) and constant current (CC) regulation with adjustable references voltage. The CC control loop also incorporates a current sense amplifier with a gain of 10. Outputs of the CV and CC amplifiers are tied together in open drain configuration. FAN6100M also incorporates an internal charge pump circuit to maintain CC regulation down to the power supply’s output voltage, Vbus of 2 V without an external voltage supply to the IC. Programmable cable voltage drop compensation allows precise CV regulation at the end of USB cable via adjusting one external resistor. Protection functions of the FAN6100M include adaptive VIN Over-Voltage Protection (VIN OVP) and adaptive VIN Under-Voltage Protection (VIN UVP). Np:Ns Lm CO1 + VO - RL IREF CFC1 RFC1 VREF CFV1 CO2 RCS_SEC Gate S Q OSC R Q CSN RLED CLED Drv CSP RF1 IDS AV-CCR CS RCS_PRI SFB RFB COMV RFV1 - + - Av VCCR Rbias + 1/3 - Slope Compensation + COMI VSAW VEA.V VCVR FB RF2 CFB COPT Figure 35. Internal PWM Control Circuit © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 15 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Functional Description VSAW Table 2. Variable CC Mode Specifications Gate COMI COMV OSC CLK CV Regulation Output Voltage Rated Current 5V 2.0 A 7V 1.8 A 9V 1.67 A 12 V 1.25 A CC Regulation For fixative 1.5 A CC Mode setting, it is fixative CC output 1.5 A except for 12 V mode. The specifications are as follows: Figure 36. PWM Operation for CV and CC VEA is compared with an internal sawtooth waveform (VSAW ) by PWM comparators to determine the duty cycle. As seen in Figure 35, output of the comparator is used as a reset signal of flip-flop to determine the MOSFET turn-off instant. The lower signal, either COMV or COMI, is transferred to the primary-side to determine the duty cycle, as shown in Figure 36. During CV regulation, COMV is transferred to the primary-side to determine the duty cycle while COMI is saturated to HIGH. During CC regulation, COMI is transferred to the primary-side to determine the duty cycle while COMV is saturated to HIGH. Table 3. Fixative 1.5 A CC Mode Specifications Output Voltage 4V 4.2 V 4.4 V 4.6 V 1.5 A 4.8 V 5V Green Mode Operation 7V FAN6100M has Green Mode operation with low quiescent current consumption (< 850 µA). During green mode, the charge pump function is disabled to reduce power consumption. The FAN6100M enters green mode when the amplified output current sensed signal is smaller than 0.37 V. If amplified output current sensed signal increases to be greater than 0.495 V, FAN6100M leaves green mode and the charge pump function is enabled. 9V 12 V Table 4. Fixative 2.0 A CC Mode Specifications Output Voltage 4.2 V 4.4 V FAN6100M provides flexible output CC choice for a variety of power rating designs. The control signal is a logic level signal for constant current mode determined by QP and QN pin settings. The output constant current mode selection specifications are as follows: 4.6 V 4.8 V Variable CC Mode QP=0 and QN=0 Fixative 1.5 A CC Mode QP=0 and QN=1 Fixative 2.0 A CC Mode QP=1 and QN =0 2.0 A 5V 7V Table 1. Mode Descriptions and Settings Mode Setting Rated Current 4V Constant Current Mode Selection Mode Description 1.1 A For fixative 2 A CC Mode setting, it is fixative CC output 2 A except for 12 V mode. The specifications are as follows: Once FAN6100M enters green mode, the operating current is also reduced from 2.4 mA to 850 µA to minimize power consumption. It provides low power consumption by the green mode operation at no load. © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 Rated Current 9V 12 V 1.56 A Once protection mode has occurred, the output current is adjusted and modified by AV-CCR-Protection. The output current can be calculated as: I O _ CC _ protection V 1 CCR FIX 1.5 A AV CCR protection A V CCR RCS (1) www.fairchildsemi.com 16 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus For variable CC mode setting, it is variable output CC for each mode. The variable output CC for each mode specifications are as follows: VEA FAN6100M incorporates programmable cable voltage drop compensation function via adjusting one external resistor to maintain constant voltage regulation at the end of USB cable. VO CO1 RCS CN Figure 37 shows the internal block of the cable voltage drop compensation function. Output current information is obtained from the amplified current sensing voltage. Depending on the weighting of the external resistor, the current signal is modulated to offset the CV loop reference voltage, VCVR. Thus, output voltage is increased by this offset voltage on the CV loop reference to compensate for cable voltage drop. VDD CCP CVDD Internal Bias 3.65V / 3.25V 0.495V/0.37V 6.4V / 6.2V AVCCR VO_End RCS IO Figure 38. Supply Voltage Block CSP Output Bleeder Section For HVDCP power supply applications, a discharge path on the output of the HVDCP power supply is necessary to ensure that a high output voltage level can transfer to a low output voltage level quickly during mode changes. This is especially critical under no-load condition where the natural decay rate of the output voltage is low. To enable output bleeder function when the mode changes from high output voltage to low output voltage can ensure short voltage transition time. XAVCCR CSN COMR Cable Voltage Drop Compensation RF1 RCOMR VREF Figure 39 shows the internal block of output bleeder function. The FAN6100M implements the output bleeder function to discharge the output voltage rapidly during mode changes. The BLD pin is connected to the output voltage terminal as the discharging path. When the high output voltage to low output voltage mode change signal is initiated, an internal switch is turned on to discharge the output voltage. The switch stays on until t BLD-MAX is reached. The BLD pin can withstand up to 20 V and enable this pin to be connected directly to the output terminal of a HVDCP power supply. RF2 Σ VCVR VIN Voltage Magement with Charge Pump RCable CO1 CP Mode Condition Figure 37. Cable Voltage Drop Compensation Block Supply Voltage and Charge Pump Operation Figure 38 shows the supply voltage circuit, including VDD and the charge-pump circuit. FAN6100M can withstand up to 20 V on the VIN pin and enable this pin to be connected directly to the output terminal of a power supply. During startup, the charge-pump circuit is enabled when VIN voltage is larger than 2 V and disabled after 40 ms from the VDD voltage reaches VDD-ON (3.65 V). The charge-pump circuit is used to boost the VDD voltage to maintain normal operation for the controller when output voltage is low. The charge-pump stage includes a low dropout (LDO) preregulator and a charge-pump circuit. The LDO preregulator regulates the input voltage of charge-pump circuit to 2.7 V and then boosts up the VDD voltage when VIN is lower than VIN-CP (6.4 V) and out of Green Mode. When VIN is greater than the value 6.2 V which subtract VIN-CP from VIN-CP-Hys or lower than VIN-CP (6.4 V) in Green Mode, the charge-pump circuit is disabled and the VIN voltage is fed directly to VDD. IBLD 5.1V ZD RBLD BLD Mode ChangE Signal from high output voltage to low output voltage Figure 39. Output Bleeder Function When charge-pump circuit is disabled, output capacitor supplies charging current to charge the hold-up capacitor CVDD. The VDD voltage is clamped at 5.4 V by internal Zener diode when the charge-pump circuit is disabled. © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 VO www.fairchildsemi.com 17 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Cable Voltage Drop Compensation Protocol Communication Figure 40 shows the VIN over-voltage protection (OVP) block, which is adaptive operated according to mode condition. Output voltage is sensed through the VIN pin for OVP detection. Once output voltage rises to VIN-OVP by each mode and then VIN OVP is triggered, where VIN OVP occurs, the OVP pin is pulled down to ground through an internal switch until VDD-OFF (3.25 V) is reached. (1) MediaTek Pump Express TM Plus Fast-Charging FAN6100M is compatible with MediaTek Pump TM Express Plus fast-charging which can permit receiving output voltage change signal by CSP and CSN pin signal. There are two kinds of output current control patterns, one is for output voltage growth, and another is for output voltage reduction, shown in Figure 42 and Figure 43. FAN6100M monitors the output current control patterns by the CSP and CSN pins. TM CO1 FAN6100M not only support MediaTek Pump Express Plus fast-charging for 5 V to 12 V quick charger application but also support for 4 V to 5 V low output voltage charger solution. VO_End RCS VIN Output Voltage Return to 5V after TWDT 7V 5V OVP OVP Output Current C Mode Condition V CCR AV CCRUVP AV CCR RCS 1 Output Current B (2) (2) SFB Mode Condition Multiplier VCCR B C C A Fairchild’s own FCP-Single Communication Protocol FAN6100M can be compatible with Fairchild’s own FCP-Single communication protocol includes highspeed mode and low-speed mode to apply high-end processor and low-end processor application. For FCPSingle communication protocol detection, it uses the DN signal to determine output voltage of the HVDCP power supply. There are four types of the control signal for the output voltage adjustment, 1. Output voltage increase (SV+_HS) for high-speed mode detection 2. Output voltage returns to 5 V (S5V_HS) for high-speed mode detection 3. Output voltage increase (SV+_LS) for lowspeed mode detection 4. Output voltage returns to 5 V (S5V_LS) for low-speed mode detection. Figure 44 shows FCP-Single communication protocol control signal waveform. IO CSP TWDT B Figure 43.Output Current Control Pattern for Output Voltage Reduction VIN XAVCCR CSN Return to 5V after TWDT 9V 7V 5V VO_End IREF A B Output Voltage Figure 41 shows the VIN under-voltage protection (VIN UVP) block. The output current is reduced to protect the system at 5 V, 7 V, 9 V and 12 V condition when VIN UVP function is triggered. Once output voltage drops below VIN-UVP-L, the CC reference voltage VCCR is adjusted and modified by AV-CCR-UVP. The output current can be calculated as: RCS B Figure 42. Output Current Control Pattern for Output Voltage Growth VIN Under-Voltage-Protection CO1 B VIN-OVP Figure 40. VIN Over-Voltage-Protection Block I O _ CC TWDT C VIN-UVP VIN UVP Protection Output Voltage Control Signal Mode Condition Period Figure 41. VIN Under-Voltage Protection Block TSTART Period Figure 44. FCP-Single Communication Protocol Control Signal Waveform © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 18 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus VIN Over-Voltage-Protection (OVP) Select Cable Drop Compensation Resistor Constant Current Mode Selection The external compensation resistor, RCOMR, can be calculated by: For variable CC mode setting, QP and QN should be connected to ground as low level signal. RCOMR For fixative 1.5 A CC Mode setting, QP should be connected to ground as low level signal and QN can be open to generate high level signal. R RF 2 1 1 Cable RF 1 RF 2 RCS AV CCR K COMRCDC (5) where: RF1 and RF2 = output feedback resistor divider derived from Eq. (3); For fixative 2.0 A CC Mode setting, QN should be connected to ground as low level signal and QP can be open to generate high level signal. RCable = cable resistance; Setting Output Voltage Sensing Resistor for VREF Pin RCS = current sensing resistor derived from Eq. (4); The output voltage can be derived by setting R F1 and RF2, as calculated by: KCOMR-CDC = cable compensation design parameter of the controller, which is 1.0 µA/V; and AV-CCR = derived from Eq. (4), 10 V/V. VO VCVR RF 1 RF 2 RF 2 (3) Setting Bleeder Resistor Considering the low stand-by power request and the noise immunity for VREF, it is typical to select currents, which is flowing current through resistor divider, range from 100 µA up to 250 µA can be used. The BLD pin can withstand up to 20 V and enable this pin to be connected directly to the output terminal of a HVDCP power supply, but the output voltage should not lower than 4.1 V at output voltage transition and short transition time consideration, it recommends adding 2 step bleeder circuits, which is one 5.1 V Zener diode and one resistance (RBLD), to avoid output voltage drop deeply. Setting Secondary Side Output Constant Current Sensing Resistor The constant current point (IO_CC) can be set by selecting the current sensing resistor as: I O _ CC V CCR AV CCR RCS The first step bleeder current is determined by internal constant current design, the type value is 240 mA. The second step bleeder discharging current (IBLD) can be adjusted by external bleeder series resistor (RBLD), calculated as: 1 (4) Setting Capacitance for VDD and ChargePump Circuit I BLD FAN6100M can withstand up to 20 V on the VIN pin and enable this pin to be connected directly to the output terminal of a power supply. It is typical to use a 100 Ω resistor between the VIN pin and the output terminal of a power supply and then connect 470 nF capacitor on VIN pin if ESD immunity need to be enhanced. VO RBLD (6) where RBLD is bleeder resistor connected between the output side and the BLD pin. IBLD The charge-pump circuit needs an external capacitor, CCP, typically 220 nF~1 µF, as the energy storage element. To stabilize the operation of the clamping LDO stage, it is typical to use 1 µF capacitor to keep the LDO loop stable. The CVDD typically 220 nF~1 µF, as the energy storage element. 5.1V ZD VO RBLD BLD Mode Change Signal from high output voltage to low output voltage Figure 45. Output Bleeder Function © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 19 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Applications Information AC IN © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 U3 FOD817B C1,22mF/400V L2 10mH C2,22mF/400V 4 6 7 5 8 U1 FAN501A 10 20 D4 MMSZ5244B R25 10KΩ Q2 MMBT2222A D1 MMSD3070 R11 8.25kΩ R14/1.6Ω, R15/1.6Ω C23 10mF 5 2 6 CY,100pF U3 FOD817B R29 1kΩ D7, TSP20U60S C8 1nF R8 47kΩ C9 3.3nF 16 17 19 18 3 C17 1nF R35 C19 470nF 7.5kΩ R22 1kΩ 5 9 2 4 8 20 U2 FAN6100M 11 10 R21 1kΩ R19/100mΩ, R20/100mΩ D2 1N4148WS C20,1nF C13 47nF R30 1kΩ C10,1mF C11,1mF ZD1,6.2V C16,330mF C7 20pF Q1 FCU900N60Z D6 FFM107 C3, 1nF/1kV R16 100Ω R9 62KΩ R13 47Ω R3 0Ω R2 300kΩ 7 R18 18Ω 7 1 6 14 15 13 12 C14 470nF R24,51kΩ C4 22mF 3 2 9 1 R7,49.9kΩ R1,49.9kΩ 1 EPC1716 TX1 C15,330mF R27 15kΩ TH1 SCK053 F1 2A/250V BR1 MDB10SV L1 330mH ZD2,5.1V R31,91kΩ C6, 470pF R32 30.1kΩ R33 7.32kΩ C18 6.8nF GND D+ D- VO FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Typical Application Circuit Figure 46. Schematic of Typical Application Circuit www.fairchildsemi.com Core: EPC-1716 Bobbin: EPC-1716 1 3 S ½ Primary Winding (Φ 0.2x1) E Shielding (Φ 0.025x1) GND 5 6 7 S GND 5 4 GND 5 S1 S2 3 Drain 2 E Secondary Winding (Φ 0.7x1) E1 E2 Auxiliary Winding + Shielding (Φ 0.15) Primary Winding (Φ 0.2x1) S BOBBIN Figure 47. Transformer Diagram Terminal Isolation Layer Winding Wire Turns Start Pin End Pin Turns NP-2 3 1 0.2 mm×1 26 2 Copper Shielding 5 Open Copper Foil 0.025 mm 1 2 Ns 7 6 0.7 mm×1 6 2 Na 4 5 0.15 mm×1 11 2 Na-Shield 5 Open 0.15 mm×1 11 2 NP-1 2 3 0.2 mm×1 34 2 Bobbin – EPC1716 Inductance 1-2 600 µH± 5% 100 kHz Effective Leakage 1-2 <30 µH Maximum Short Other Pin © 2014 Fairchild Semiconductor Corporation FAN6100M • Rev. 1.1 www.fairchildsemi.com 21 FAN6100M — Secondary-Side CV / CC Controller Compatible with MediaTek Pump ExpressTM Plus Transformer Specification 3.00 0.10 C A 20 B 2X 3.50 1.80 17 0.60(20X) 16 1 4.50 4.00 2.80 3.90 6 0.10 C TOP VIEW 2X 11 (0.25)4X 0.50 7 10 0.30(20X) RECOMMENDED LAND PATTERN 0.10 C 0.08 C SIDE VIEW C NOTES: 7 (0.60) 4X 10 6 11 16 1 (0.60) 4X PIN#1 IDENT 0.50 20 BOTTOM VIEW 17 0.10 0.05 C A B C A. DOES NOT FULLY CONFORMS TO JEDEC REGISTRATION MO-220. B. DIMENSIONS ARE IN MILLIMETERS. C. DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 2009. D. 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