DATA SHEET AAT3783A: 1 A Linear Li-Ion/Polymer Battery Charger with 28 V Over-Voltage Protection Applications Description Bluetooth headsets, headphones, accessories The AAT3783A BatteryManager™ is a single-cell Lithium-Ion (Li-Ion)/Li-Polymer battery charger IC, designed to operate from USB ports, AC adapter inputs, or from a charger adapter up to an input voltage of 6.5 V. For increased safety, the AAT3783A also includes over-voltage input protection (OVP) up to 28 V. ® Digital still cameras Mobile phones MP3 players Personal data assistants (PDAs) Other Li-Ion/polymer battery powered devices Features USB or AC adapter system power charger Programmable from 100 mA to 1 A maximum 4.0 V 7.5 V input voltage range Over-voltage input protection up to 28 V High level of integration with internal: charging device reverse blocking diode current sensing Digital thermal regulation Charge current programming (ISET) Charge termination current programming (TERM) Charge timer (CT) USBSET pin sets high/low charge level Battery temperature sensing (TS) TS pin open detection Automatic recharge sequencing The AAT3783A precisely regulates battery charge voltage and current for 4.2 V Li-Ion/Polymer battery cells through an extremely low RDS(ON) switch. When charged from an adapter or a USB port, the battery charging current can be set by an external resistor up to 1 A. In the case of an over-voltage condition in excess of 6.5 V, a series switch opens to prevent damage to the battery and charging circuitry. With the addition of an external resistor, the OVP trip point can be programmed to a level other than the factory set value of 6.5 V. In the case of an OVP condition a fault flag is activated. Battery charge state is continuously monitored for fault conditions. In the event of an over-current, battery over-voltage, short-circuit, or over-temperature failure, the device automatically shuts down to protect the charging device, control system, and battery under charge. A status monitor output pin is provided to indicate the battery charge status by directly driving an external LED. An open-drain power-source detection output (ADPP) is provided to report the power supply status. The AAT3783A is available in a thermally enhanced, space-saving 16-pin, 3 mm 4 mm TDFN package, and is specified for operation over the 40 °C to +85 °C temperature range. A typical application circuit is shown in Figure 1. The pin configurations are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. No trickle charge option available Full battery charge auto turn off/sleep state/charge termination Automatic trickle charge for battery preconditioning Battery over-voltage and over-current protection Emergency thermal protection Skyworks Green™ products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green™, document number SQ04-0074. Power-on reset TDFN (16-pin, 3 mm 4 mm) package (MSL1, 260 ºC per JEDEC J-STD-020) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 1 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION VIN IN BATS IN BAT 10 F FLT OVP INCHR 2.2 F BATT+ BA TT– AAT3783A TEMP TS CT Battery Pack STAT TERM ISET ADPP Enable Charging USB High/Low Charge Level Setting ENCHR USBSET RSET GND RTERM CT tc141 Figure 1. AAT3783A Typical Application Circuit INCHR BATS BAT TS USBSET OVP FLT STAT 16 1 2 EP1 15 3 14 4 13 5 EP2 12 6 11 7 10 8 9 IN IN ISET GND TERM ENCHR CT ADPP tc142 Figure 2. AAT3783A Pinout – 16-Pin, 3 mm 4 mm TDFN (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Table 1. AAT3783A Signal Descriptions Pin Name Type Description 1 INCHR I/O Internal connection between the output of the OVP stage and the input of the battery charger. Decouple with 2.2 F capacitor. 2 BATS I Battery sense pin. Connect directly to the battery's +terminal. If not used, BATS must be connected to BAT. 3 BAT O Connect to Lithium-Ion battery. 4 TS I/O Battery temperature sense pin. 5 USBSET I USB high/low charge level setting. Tie high to set high charge level; charge current is set by RSET. Tie low to set low charge level; charge current becomes 1/5 of the high charge level setting. USBSET is internally pulled down to GND with a 10 M resistor. 6 OVP I Over-voltage protection threshold pin. Leave open for the default 6.5 V setting; connect to a resistor to adjust the OVP setting (see Application Information). 7 FLT O Over-voltage fault flag, open drain. 8 STAT O Charge status pin, open drain. 9 ADPP O Input power-good (USB port/adapter present indicator) pin, open-drain. 10 CT I Charge timer programming input pin. Timer disabled when CT pin is connected to GND or the USBSET pin is tied low. 11 ENCHR I Active low enable pin (with internal 9 M pull-up to INCHR) for charging circuitry. 12 TERM I Charge termination current programming input pin (internal default 10% termination current if TERM is open). 13 GND I/O Connect to power ground. 14 ISET I Charge current programming input pin. 15, 16 IN I Input from USB port/adapter connector. Electrical and Mechanical Specifications The absolute maximum ratings of the AAT3783A are provided in Table 2, the thermal information is listed in Table 3, and electrical specifications are provided in Table 4. Table 2. AAT3783A Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Typical Maximum Units IN continuous VIN 30 Charger IN continuous VINCHR Fault flag continuous VFLT 0.3 +30 V BAT, BATS, STAT, ADPP, ENCHR, ISET, TS, USBSET, OVP VN 0.3 VINCHR + 0.3 V Operating junction temperature range TJ 40 150 ºC Maximum soldering temperature (at leads) TLEAD 0.3 V 7.5 V 300 ºC Note 1: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed may result in permanent damage to the device. Table 3. AAT3783A Thermal Information (Note 1) Parameter Symbol Value Units Maximum thermal resistance JA 50 ºC/W Maximum power dissipation PD 2 W Note 1: Mounted on an FR4 board. CAUTION:Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 3 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Table 4. AAT3783A Electrical Specifications (1 of 2) (Note 1) (VIN = 5 V, TA = –40 C to +85C, Unless Otherwise Noted, Typical Values are TA = 25 C) Parameter Symbol Test Condition Min Typical Max Units 28 V 7.5 V Operation Input over-voltage protection range VIN_MAX Normal operating input voltage range VIN 4.0 Over-Voltage Protection Rising edge Under-voltage lockout threshold 3 V 60 mV VUVLO UVLO hysteresis Operating quiescent current IQ VIN = 5 V, IOUT = 0 A, ENCHR = VIN 34 Under-voltage lockout threshold VOVPT Rising edge, OVP = not connected 6.5 55 A V Battery Charger Rising edge Under-voltage lockout threshold 3 4 V VUVLO UVLO hysteresis 150 Operating current IOP Leakage current from BAT pin IBAT Charge current = 100 mA, USBSET = 0 V,, ENCHR = 0 V VBAT = 4 V, USBSET = VIN mV 0.5 1 mA 0.4 2 A 4.20 4.242 Voltage Regulation Output charge voltage regulation VBAT_EOC Output charge voltage tolerance VCH/VCH Preconditioning voltage threshold VMIN Battery recharge voltage threshold VRCH 4.158 0.5 (Option available for no trickle charge) 2.5 2.6 V % 2.7 VBAT_EOC 0.1 V V Current Regulation Charge current programmable range ICC_RANGE 100 Constant-current mode charge current ICH_CC VBAT = 3.6 V ISET pin voltage at USBSET high setting VISET_H USBSET = 5 V 2 V ISET pin voltage at USBSET low setting VISET_L USBSET = 0 V 0.4 V Charge current set factor: ICH_CC/IISET KISET Constant current mode, VBAT = 3.6 V 800 Term pin voltage VTERM RTERM = 13.3 k 0.2 Termination current set factor: ICH_TERM/ITERM KITERM Trickle charge current ICH_TRK Charge termination threshold current ICH_TERM 10 1000 mA 10 % V 1000 5 10 15 %ICH_CC TERM pin open 5 10 15 %ICH_CC RTERM = 13.3 k, ICH_CC 800 mA 8 10 12 % Battery Charging Device Total ON resistance (IN to BAT) RDS(ON) VIN = 5 V, IOUT = 1 A 550 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A m DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Table 4. AAT3783A Electrical Specifications (2 of 2) (Note 1) (VIN = 5 V, TA = –40 C to +85C, Unless Otherwise Noted, Typical Values are TA = 25 C) Parameter Symbol Test Condition Min Typical Max Units Logic Control Input high threshold VUSBSET(H), VENCHR(H) Input low threshold VUSBSET(L), VENCHR(L) Output low voltage VSTAT STAT pin current sink capability ISTAT Output low voltage VADDP ADPP pin current sink capability IADPP Output low voltage VFLT 1.6 V 0.4 STAT pin sinks 4 mA V 0.4 V 8 mA ADPP pin sinks 4 mA 0.4 V 8 mA FLT pin sinks 1 mA 0.4 V 5 mA 15 ms FLT pin current sink capability IFLT FLT blanking time tBLK_FLT From de-assertion of O V FLT assertion delay time from over-voltage tD_FLT From assertion of O V Over-voltage response time tRESP_OV C rise 1 s OVP turn-on delay time tOVPON Charging current = 500 mA, CINCHR = 1 F 10 ms OVP turn-on rise time tOVPR Charging current = 500 mA, CINCHR = 1 F 1 ms OVP turn-off delay time tOVPOFF Charging current = 500 mA, CINCHR = 1 F 6 ms 5 10 s 1 to 7 V from 5 V in 1 ns Battery Protection Battery over-voltage protection threshold VBOVP 4.4 V Battery over-current protection threshold IBOCP 105 % ICH_CC Trickle plus constant current mode timeout TC CCT = 100 nF, VIN = 5 V 3 Hour Trickle timeout TK CCT = 100nF, VIN = 5 V 25 Minute Constant voltage mode time out TV CCT = 100nF, VIN = 5 V Current source from TS pin ITS TS hot temperature fault TS1 Threshold 3 75 81 A 316 331 346 mV 2.30 2.39 Hysteresis Threshold TS cold temperature fault Hour 69 25 mV 2.48 V TS2 Hysteresis 25 mV Thermal loop entering threshold TLOOP_IN 115 °C Thermal loop exiting threshold TLOOP_OUT 85 °C Thermal loop regulation TREG 100 °C Threshold 140 °C Chip thermal shutdown temperature TSHDN Hysteresis 15 °C Note 1: Performance is guaranteed only under the conditions listed in this Table. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 5 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Typical Performance Characteristics Typical performance characteristics of the AAT3783A are illustrated in Figures 3 through 22. 1200 1000 100 10 1 1 10 100 1000 600 RSET = 3.24 kΩ 400 RSET = 8.06kΩ 200 0 2.5 1000 RSET = 2 kΩ 800 tc144 Charging Current (mA) RSET = 1.62 kΩ tc143 Constant Charging Current (mA) 10000 2.7 2.9 3.1 4.23 0.1 4.22 0.05 4.21 0 4.19 -0.1 4.18 6 6.5 7 4.17 -40 7.5 -15 10 4.5 35 60 85 Figure 6. End of Charge Voltage vs Temperature Figure 5. End of Charge Regulation Tolerance vs Input Voltage (VBAT_EOC = 4.2 V) 140 4.16 120 4.14 100 ICH_TRK (mA) 4.12 4.1 4.08 RSET = 1.62 kΩ 80 RSET = 2 kΩ 60 40 4.06 RSET = 3.24 kΩ -15 10 35 60 85 Figure 7. Battery Recharge Voltage Threshold vs Temperature RSET = 8.06kΩ 0 4.0 4.5 tc148 tc147 20 Temperature (°C) 5.0 5.5 6.0 6.5 7.0 7.5 Input Voltage (V) Figure 8. Preconditioning Charge Current vs Input Voltage Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 4.3 Temperature (°C) Input Voltage (V) Recharge Voltage (V) 4.1 4.20 -0.05 4.04 -40 3.9 tc146 VEOC (V) 0.15 5.5 3.7 Figure 4. Battery Charging Current vs Battery Voltage tc145 ΔVBAT_EOC/VBAT_EOC (%) Figure 3. Constant Charging Current vs Set Resistor Values 5 3.5 Battery Voltage (V) RSET (mΩ) -0.15 4.5 3.3 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION 23 2.66 22 2.64 21 2.62 VMIN (V) 20 2.60 2.58 18 2.56 tc149 19 17 -40 -15 10 35 60 tc150 Preconditioning Charge Current (mA) Typical Performance Characteristics 2.54 -40 85 -15 10 Figure 9. Preconditioning Charge Current vs Temperature (RSET = 8.06 k; ICH_CC = 200 mA) 85 Figure 10. Preconditioning Voltage Threshold vs Temperature 1200 800 VBAT = 3.3 V 750 1100 700 RDS(ON) (mΩ Ω) VBAT = 3.6 V 1000 900 VBAT = 3.9 V 85 °C 650 600 25 °C 550 500 450 VBAT = 4.1 V 700 4 4.5 5 5.5 6 6.5 7 400 3.6 7.5 –40 °C tc152 800 tc151 Constant Charging Current (mA) 60 Temperature (°C) Temperature (°C) 3.8 4 4.4 4.6 4.8 5 Figure 12. Total Resistance vs Input Voltage (IN to BAT) Figure 11. Constant Charging Current vs Input Voltage (RSET = 1.62 k) 2.400 335 333 331 329 tc153 327 -15 10 35 60 85 Temperature (°C) Figure 13. Temperature Sense too Hot Threshold vs Temperature 2.395 2.390 2.385 2.380 2.375 -40 tc154 337 Temperature Sense Threshold Voltage (TS2) (mV) 339 325 -40 4.2 Input Voltage (V) Input Voltage (V) Temperature Sense Threshold Voltage (TS1) (mV) 35 -15 10 35 60 85 Temperature (°C) Figure 14. Temperature Sense too Cold Threshold vs Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 7 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Typical Performance Characteristics 1.0 78 0.9 0.8 Capacitance (μF) 74 72 0.7 Preconditioning Timeout 0.6 0.5 0.4 0.3 Preconditioning + Constant Current Timeout or Constant Voltage Timeout 0.2 70 0.1 tc155 68 -40 -15 10 35 60 tc156 ITS (μA) 76 0.0 0 85 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Time (h) Temperature (°C) Figure 16. CT Pin Capacitance vs Counter Timeout Figure 15. Temperature Sense Output Current vs Temperature 50 1.6 1.4 ICH_TERM/ICH_CC (%) 1.0 0.8 0.6 0.4 30 20 10 0.2 0.0 1 tc157 Preconditioning mode 10 100 tc158 IOP (mA) 40 Constant current mode 1.2 0 0 1000 10 20 1.4 1.4 1.2 25 °C 0.8 85 °C 0.4 4 4.5 5 5.5 6 6.5 7 Input Voltage (V) Figure 19. Input Low Threshold vs Input Voltage 7.5 1.2 25 °C –40 °C 1.0 0.8 85 °C 0.6 0.4 4 4.5 5 5.5 6 6.5 7 Input Voltage (V) Figure 20. Input High Threshold vs Input Voltage Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 60 tc160 VENCHR(H), VUSBSET(H) (V) 1.6 tc159 VENCHR(L), VUSBSET(L) (V) 1.6 0.6 50 Figure 18. Termination Current to Constant Current Ratio vs Termination Resistance Figure 17. Operating Current vs ISET Resistor –40 °C 40 ITERM Resistance (kΩ) RSET (kΩ) 1.0 30 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A 7.5 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Typical Performance Characteristics 0.05 12 10 6 2 4 0 2 -2 0 -4 tc161 Time (2 ms/div) Figure 21. FLT Blanking Time -0.05 -0.10 -0.15 -0.20 -40 tc162 4 VOVPTRIP Error (%) 6 FLT Voltage (V) Input Voltage (V) 0.00 8 -15 10 35 60 85 Temperature (°C) Figure 22. OVP Trip Point vs Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 9 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION INCHR IN Reverse Blocking Over-Current Protection IN OVP BAT Current Compare OVP Sense CV/ Pre-charge Constant Current FLT Power Detection UVLO Charge Control ADPP USBSET BATS INCHR Over-Temp. Thermal Protect Loop Charge Status ISET TERM ENCHR STAT CT TS GND tc163 Figure 23. AAT3783A Functional Block Diagram Functional Description Battery Preconditioning The AAT3783A is a high-performance battery charger designed to charge single-cell Lithium-Ion or Polymer batteries with up to 1000 mA of current from an external power source. It is a standalone charging solution, with just one external component required (two more for options) for complete functionality. The device includes input voltage protection (OVP) to up to +28 V. OVP consists of a low resistance P-channel MOSFET in series with the charge control MOSFET, and also consists of undervoltage lockout protection, over-voltage monitor, and fast shutdown circuitry with a fault output flag. Battery charging commences only after the AAT3783A checks several conditions in order to maintain a safe charging environment. The input supply must be greater than the minimum operating voltage (VUVLO) and the enable pin must be high. When the battery is connected to the BAT pin, the AAT3783A checks the condition of the battery and determines which charging mode to apply. If the battery voltage is below the preconditioning voltage threshold, VMIN, then the AAT3783A begins preconditioning the battery cell (trickle charging) by charging at 10% of the programmed constant current (set by the ISET resistor), regardless of whether USBSET high or USBSET low charge level is selected. For example, if the programmed current is 500 mA, then the preconditioning mode (trickle charge) current is 50 mA. Battery cell preconditioning (trickle charging) is a safety precaution for deeply discharged cells and also reduces the power dissipation in the internal series pass MOSFET when the input-output voltage differential is at the greatest potential. A functional block diagram is shown in Figure 23. Battery Charging Operation Figure 24 illustrates the entire battery charging profile or operation, which consists of three phases: 1. Preconditioning (Trickle) Charge 2. Constant Current Charge 3. Constant Voltage Charge Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Charge Complete Voltage Regulated Current Preconditioning Trickle Charge Phase Constant Current Charge Phase Constant Voltage Charge Phase I = Max CC Constant Current Mode Voltage Threshold Trickle Charge and I = CC /10 Termination Threshold tc164 Figure 23. Current vs Voltage Profile during Charging Phases Constant Current Charging Thermal Considerations Battery cell preconditioning continues until the battery voltage reaches the preconditioning voltage threshold, VMIN. At this point, the AAT3783A begins constant current charging. The current level for this mode is programmed using a single resistor from the ISET pin to ground. The programmed current can be set at a minimum 100 mA up to a maximum of 1 A. The actual maximum charging current is a function of the charge adapter input voltage, the battery charge state at the moment of charge, the ambient temperature, and the thermal impedance of the package. The maximum programmable current may not be achievable under all operating parameters. The USBSET pin is used for high/low charge level setting. Tie high to set the charge level to high and the charge current to the level set by the ISET pin resistor. Tie low to set the charge level to low and the charge current to 1/5 of the high charge level setting. USBSET is pulled down to GND internally by a 200 k resistor. Over-Voltage Protection Constant Voltage Charging Constant current charging will continue until such time that the battery voltage reaches the voltage regulation point, VBAT_EOC. When the battery voltage reaches VBAT_EOC, the AAT3783A switches to constant voltage mode. The regulation voltage is factory programmed to a nominal 4.2 V and continues charging until the charge termination current is reached. In normal operation, a P-channel MOSFET acts as a slew-rate controlled load switch, connecting and disconnecting the power supply from IN to INCHR. A low resistance MOSFET is used to minimize the voltage drop between the voltage source and the charger and to reduce the power dissipation. When the voltage on the input exceeds the over-voltage trip point (internally set by the factory or externally programmed by a resistor connected to the OVP pin), the device immediately turns off the internal Pchannel FET which disconnects the charger from the abnormal input voltage, therefore preventing any damage to the charger. Simultaneously, the fault flag is raised to alert the system. If an over-voltage condition is applied at the time of the device enable, then the switch remains OFF. Charge Status Output OVP Under-Voltage Lockout (UVLO) The AAT3783A provides battery charge status via a status pin. This pin is internally connected to an N-channel open-drain MOSFET, which can be used drive an external LED. The status pin can indicate the conditions in Table 5: The AAT3783A OVP circuitry has a fixed 3 V under-voltage lockout level (UVLO). When the input voltage is less than the UVLO level, the MOSFET is turned off. 100 mV of hysteresis is included to ensure circuit stability. Table 5. LED Status Indicator Over-Current Protection Event Description Status No battery charging activity OFF Battery charging via adapter or USB port ON Charging completed OFF The AAT3783A over-current protection provides fault-condition protection that limits the charge current to approximately 1.6 A under all conditions, even if the ISET pin gets shorted to ground. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 11 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION FLT Blanking Time USBSET The FLT output is an active-low open-drain fault (OV) reporting output. A pull-up resistor should be connected from FLT to the logic I/O voltage of the host system. FLT is asserted immediately when an over-voltage fault occurs (only about a 1 s inherited internal circuit delay). A 10 ms blanking is applied to the FLT signal prior to de-assertion. USB charge current level can be selected by toggling the USBSET pin. When USBSET = 0, the charge current is set to 1/5 of the programmed charge current level set by ISET. When USBSET = logic high (1.6 V 5 V), the charge current is set to the full programmed charge current level set by ISET. Enable/Disable The AAT3783A provides an enable function to turn the charger on and off through the ENCHR pin; ENCHR has an internal pullup resistor (9 M to INCHR); the OVP switch is permanently enabled regardless of ENCHR enable or disable. For example, when charging current is set to 500 mA (RSET = 3.24 k) and USBSET = logic low (0 V), the charge current is 100 A, which is 1/5 of the programmed charge current. When USBSET = logic high (1.6 V 5 V), the charge current becomes 100% (500 mA). Figure 24 shows the system operation flowchart for the battery charger. OVP Turn-On Delay Time On initial power-up, if VIN < UVLO or if VOVP > 6.5 V, the PMOS is held off. If UVLO < VIN and VOVP < 6.5 V, the device enters startup after a 10 ms internal delay. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Power Input Voltage VIN > VUVLO Power On Reset No Yes OVP Condition Monitoring VIN > 6.5 V ? Yes Disconnect Input Shut ShutDown Down fromMode Charger Mode No Fault Condition Monitoring Yes VTS1<TS<VTS2, OV, OT? Shutdown Shut ShutDown Down Mode Mode Mode Expire No Charger Timer Shut ShutDown Down Control Mode Mode Preconditioning Test VMIN > VBAT Yes Preconditioning Shut Shut Down Down Mode Trickle Charge Mode Yes Shut Constant Current Shut Down Down Charge Mode Mode Mode Enable No No Recharge Test VRCH > VBAT Yes Current Phase Test VBAT_EOC > VBAT Device Temp. Monitor TJ > 115 ºC No Voltage Phase Test VBAT > ITERM No Yes Yes Constant Voltage Shut Shut Down Down Charge Mode Mode Mode Thermal Loop Current Reduction In C. C. Mode No Charge Charge Completed Completed tc165 Figure 24. System Operation Flowchart for the Battery Charger Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 13 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Application Information Programming the Over-Voltage Protection Trip Point The default over-voltage protection trip point of the AAT3783A is set to 6.5 V by the factory. However, the over-voltage protection trip point can be programmed from 3.8 V to 7.5 V by the user with one external resistor, either R5 or R6. The placement of R5 is between IN and OVP. The placement of R6 is between OVP and GND. The OVP trip points can be approximated by the following formulas: If using R5 (OVP to IN): VOVP _ TRIPPOINT 1.1 1.426 0.29 If using R6 (OVP to GND): VOVP _ TRIPPOINT R5 1.498 0.29 1.1 1.426 0.29 0.29 R6 1.498 R6 1.498 Here, voltage in V, resistance in M. Table 6 summarizes resistor values for various over-voltage protection trip points. Use 1% tolerance metal film resistors for programming the desired OVP trip point. needed, the BATS pin should be terminated directly to the BAT pin. If there is concern of the battery sense function inadvertently becoming an open circuit, the BATS pin may be terminated to the BAT pin using a 10 k resistor. Under normal operation, the connection to the battery terminal is close to 0 ; if the BATS connection becomes an open circuit, the 10 k resistor provides feedback to the BATS pin from the BAT connection with a voltage sensing accuracy loss of 1 mV or less. Constant Charge Current The constant current mode charge level is user programmed with a set resistor placed between the ISET pin and ground. The accuracy of the constant charge current, as well as the preconditioning trickle charge current, is dominated by the tolerance of the set resistor used (see Figure 25). For this reason, a 1% tolerance metal film resistor is recommended for the set resistor function. The constant charge current levels from 100 mA to 1 A may be set by selecting the appropriate resistor value from Table 7. Table 7. RSET Values Constant Charging Current (mA) Set Resistor Value (k) 10 162 Table 6. Programming OVP Trip Point for AAT3783A with One Resistor R6 (M) R5 (M) 20 80.6 VOVP_TRIPPOINT (V) 50 32.4 short open 7.5 100 16 0.499 open 7.25 200 8.06 1.3 open 7.0 300 5.36 3.01 open 6.75 400 4.02 open open 6.5 500 3.24 open 4.99 5.5 600 2.67 open 2.49 5.0 700 2.26 open 1.0 4.5 800 2 open short 3.87 900 1.78 1000 1.62 Battery Connection and Battery Voltage Sensing Battery Connection (BAT) The BATS pin is provided to employ an accurate voltage sensing capability to measure the positive terminal voltage at the battery cell being charged. This function reduces measured battery cell voltage error between the battery terminal and the charge control IC. The AAT3783A charge control circuit will base charging mode states upon the voltage sensed at the BATS pin. The BATS pin must be connected to the battery terminal for correct operation. If the battery voltage sense function is not 1000 100 10 tc166 Battery Voltage Sensing (BATS) Constant Charging Current (mA) 10000 A single cell Li-Ion/Polymer battery should be connected between the BAT pin and ground. 1 1 10 100 Figure 25. Constant Charging Current vs Set Resistor Values Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 14 1000 RSET (kΩ Ω) April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A Data Sheet • AAT3620 Single Cell Li+ Switch Mode Battery Charger Charge Termination Current The charge termination current ICH_TERM can be programmed by connecting a resistor from TERM to GND: I CH _ TERM 15 A RTERM I CH _ CC 2V Where: ICH_TERM = charge termination current level ICH_CC = programmed fast charge constant current level RTERM = TERM resistor value If the TERM pin is left open, the termination current is set to 10% of the constant charging current as the default value. When the charge current drops to the defaulted 10% of the programmed charge current level or programmed terminated current in the constant voltage mode, the device terminates charging and goes into a sleep state. If the programmed termination current exceeds 1/5 of the fast charge level, and the low charge level is selected (USBSET = low), charging terminates immediately upon reaching constant voltage mode. The charger remains in this sleep state until the battery voltage falls to a level below the battery recharge voltage threshold (VRCH). Consuming very low current in the sleep state, the AAT3783A minimizes battery drain when it is not charging. This feature is particularly useful in applications where the input supply level may fall below the battery charge or under-voltage lockout level. In such cases where the AAT3783A input voltage drops, the device enters sleep state and automatically resumes charging once the input supply has recovered from the fault condition. Protection Circuitry Programmable Watchdog Timer The AAT3783A contains a watchdog timing circuit to shut down charging functions in the event of a defective battery cell not accepting a charge over a preset period of time. Typically, a 0.1 F ceramic capacitor is connected between the CT pin and ground. When a 0.1 F ceramic capacitor is used, the device will time out a shutdown condition if the trickle charge mode exceeds 25 minutes and a combined trickle charge plus constant current mode of 3 hours. When the device transitions to the constant voltage mode, the timing counter is reset and will time out after an additional 3 hours if the charge current does not drop to the charge termination level, as shown in Table 8. Table 8. Summary for a 0.1 F Ceramic Capacitor Used for the Timing Capacitor Mode Time Trickle charge (TC) time out 25 minutes Trickle charge (TC) + constant current (CC) mode time out 3 hours Constant voltage (CV) mode time out 3 hours The CT pin is driven by a constant current source and provides a linear response to increases in the timing capacitor value. Thus, if the timing capacitor were to be doubled from the nominal 0.1 F value, the timeout periods would be doubled. If the programmable watchdog timer function is not needed, it can be disabled by terminating the CT pin or the USBSET pin to ground. The CT pin should not be left floating or unterminated, as this causes errors in the internal timing control circuit. The constant current provided to charge the timing capacitor is very small, and this pin is susceptible to noise and changes in capacitance value. Therefore, the timing capacitor should be physically located on the printed circuit board layout as close as possible to the CT pin. Since the accuracy of the internal timer is dominated by the capacitance value, a 10% tolerance or better ceramic capacitor is recommended. Ceramic capacitor materials, such as X7R and X5R types, are good choices for this application. Battery Over-Voltage Protection An over-voltage event is defined as a condition where the voltage on the BAT pin exceeds the maximum battery charge voltage and is set by the over-voltage protection threshold (VBOVP). If an over-voltage condition occurs, the AAT3783A charge control shuts down the device until the voltage on the BAT pin drops below VOVP. The AAT3783A resumes normal charging operation after the over-voltage condition is removed. Battery Temperature Monitoring In the event of a battery over-temperature condition, the charge control turns off the internal pass device. After the system recovers from a temperature fault, the device resumes charging operation. The AAT3783A checks battery temperature before starting the charge cycle, as well as during all stages of charging. This is accomplished by monitoring the voltage at the TS pin. This system is intended for use with negative temperature coefficient thermistors (NTC) which are typically integrated into the battery package. Most of the commonly used NTC thermistors in battery packs are approximately 10 k at room temperature (25 °C). The TS pin has been specifically designed to source 75 A of current to the thermistor. The voltage on the TS pin resulting from the resistive load should stay within a window of 331 mV to 2.39 V. If the battery becomes too hot during charging due to an internal fault or Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201904D • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • August 27, 2013 9 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION excessive constant charge current, the thermistor will heat up and reduce in value, pulling the TS pin voltage lower than the TS1 threshold, and the AAT3783A stops charging until the condition is removed, when charging is resumed. If the use of the TS pin function is not required by the system, it should be terminated to ground using a 10 k resistor. Alternatively, on the AAT3783A, the TS pin may be left open. the maximum power dissipation for a given situation should be calculated: Over-Temperature Shutdown JA = package thermal resistance (°C/W) The AAT3783A has a thermal protection control circuit, which shuts down charging functions should the internal die temperature exceed the preset thermal limit threshold. Once the internal die temperature falls below the thermal limit, normal operation resumes the previous charging state. TJ = thermal loop entering threshold (°C) [115 °C] PD( MAX ) PD(MAX) = maximum power dissipation (W) TA = ambient temperature (°C) Figure 26 shows the relationship of maximum power dissipation and ambient temperature of the AAT3783A. 2.5 PD(MAX) (W) 2 The thermal loop control re-evaluates the circuit die temperature every three seconds and adjusts the fast charge current back up in small steps to the full fast charge current level or until an equilibrium current is discovered and maximized for the given ambient temperature condition. The thermal loop controls the system charge level; therefore, the AAT3783A always provides the highest level of constant current in the fast charge mode possible for any given ambient temperature condition. 1.5 1 tc167 0.5 0 0 The initial thermal loop current can be estimated by the following equation: I TLOOP I CH _ CC 0.44 JA Where: Digital Thermal Loop Control Due to the integrated nature of the linear charging control pass device for the adapter mode, a special thermal loop control system has been employed to maximize charging current under all operation conditions. The thermal management system measures the internal circuit die temperature and reduces the fast charge current when the device exceeds a preset internal temperature control threshold. Once the thermal loop control becomes active, the fast charge current is initially reduced by a factor of 0.44. TJ ( MAX ) TA 25 50 75 100 TA (°C) Figure 26. Maximum Power Dissipation Before Entering Digital Thermal Loop Next, the power dissipation can be calculated by the following equation: PD VIN VBAT I CH VIN I OP Where: PD = total power dissipation by the device VIN = input voltage VBAT = battery voltage as seen at the BAT pin ICH = constant charge current programmed for the application Thermal Considerations and High Output Current Applications IOP = quiescent current consumed by the charger ic for normal operation [0.4 mA] The AAT3783A delivers a continuous charging current. The limiting characteristic for maximum safe operating charging current is its package power dissipation. Many considerations should be taken into account when designing the printed circuit board layout, as well as the placement of the IC package in proximity to other heat generating devices in a given application design. The ambient temperature around the IC will also have an effect on the thermal limits of a battery charging application. By substitution, we can derive the maximum charge current before reaching the thermal limit condition (thermal loop). The maximum charge current is the key factor when designing battery charger applications. The maximum limits that can be expected for a given ambient condition can be estimated by the following discussion. First, I CH(MAX) PD( MAX ) VIN I OP VIN VBAT TJ ( MAX ) TA I CH(MAX) JA VIN I OP VIN VBAT Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 16 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION In general, the worst condition is the greatest voltage drop across the charger IC, when battery voltage is charged up to the preconditioning voltage threshold and before entering thermal loop regulation. Figure 27 shows the maximum charge current in different ambient temperatures. 1000 increased to 10 F or more if the battery connection is made any distance from the charger output. If the AAT3783A is used in applications where the battery can be removed from the charger, such as with desktop charging cradles, an output capacitor greater than 10 F may be required to prevent the device from cycling on and off when no battery is present. TA = 45 °C TA = 25 °C ICC_MAX (mA) 800 Printed Circuit Board Layout Recommendations 600 For proper thermal management and to take advantage of the low RDS(ON) of the AAT3783A, follow these circuit board layout rules: 400 TA = 60 °C 0 4 4.5 5 tc168 200 TA = 85 °C 5.5 6 6.5 7 7.5 VIN (V) Figure 27. Maximum Charging Current Before the Digital Thermal Loop Becomes Active Input Capacitor A 1 F or larger capacitor is typically recommended for CIN. CIN should be located as close to the device VIN pin as practically possible. Ceramic, tantalum, or aluminum electrolytic capacitors may be selected for CIN. There is no specific capacitor equivalent series resistance (ESR) requirement for CIN. However, for higher current operation, ceramic capacitors are recommended for CIN due to their inherent capability over tantalum capacitors to withstand input current surges from low impedance sources such as batteries in portable devices. Typically, 50 V rated capacitors are required for most of the application to prevent any surge voltage. Ceramic capacitors as small as 1210 are available which can meet these requirements. Other voltage rating capacitors can also be used for the known input voltage application. 1. VIN and VOUT should be routed using wider than normal traces, and GND should be connected to a ground plane. 2. To maximize package thermal dissipation and power handling capacity of the AAT3783A TDFN package, solder the exposed paddle of the IC onto the thermal landing of the PCB, where the thermal landing is connected to the ground plane. 3. This AAT3783A has two exposed paddles (EP1 and EP2). EP1 is connected to INCHR (pin 1) and EP2 is connected to GND (pin 13). DO NOT make one whole thermal landing! 4. If heat is still an issue, multi-layer boards with dedicated ground planes are recommended. 5. Also, adding more thermal vias on the thermal landing would help the heat being transferred to the PCB effectively. Evaluation Board Description The AAT3783A Evaluation Board is used to test the performance of the AAT3783A. An Evaluation Board schematic diagram is provided in Figure 28. Layer details for the Evaluation Board are shown in Figure 29. The Evaluation Board has additional components for easy evaluation; the actual bill of materials required for the system is shown in Table 9. Charger Input Capacitor A 2.2 F decoupling capacitor is recommended to be placed between INCHR and GND. Charger Output Capacitor Package Information Package dimensions for the 16-pin TDFN package are shown in Figure 30. Tape & reel dimensions are shown in Figure 31. The AAT3783A only requires a 1 F ceramic capacitor on the BAT pin to maintain circuit stability. This value should be Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 17 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION JP3 INCHR INCHR JP1 +5 V Red LED D1 Hi Lo U1 R7, 6 kΩ 4 V ~ 7.5 V VIN 2 GND 1 R5 (open) C1 1 μF JP2 FLT USBSET IN IN OVP 11 On R6 (open) 7 5 15 16 6 INCHR C2 2.2 μF ENCHR 1 INCHR 13 GND AAT3783A Red LED D2 R3 (open) Green LED D3 R8, 1.5kΩ 9 ADPP 8 STAT 2 BATS 3 BAT 4 TS TERM 12 ISET 14 10 CT R9, 1.5kΩ 1 2 3 GND BAT TS C3 10 μF C4 0.1 μF R2 R4 R1 13.3 kΩ 10 kΩ 1.62 kΩ tc169 Figure 28. AAT3783A Evaluation Board Schematic Table 9. AAT3783A Evaluation Board Bill of Materials Component Part number Description Manufacturer U1 AAT3783AIRN-T1 1 A Linear Li-Ion/Polymer Battery Charger with 28 V Over-Voltage Protection; TDFN Package Skyworks R1 Chip Resistor 1.62 k, 1%, 1/4 W; 0603 Vishay R2 Chip Resistor 13.3 k, 1%, 1/4 W; 0603 Vishay R4 Chip Resistor 10 k, 5%, 1/4 W; 0603 Vishay R7 Chip Resistor 6 k, 5%, 1/4 W; 0603 Vishay R8, R9 Chip Resistor 1.5 k, 5%, 1/4 W; 0402 Vishay GRM31MR71H105KA88 CER 1 F, 50 V, 10% X7R 1206 (GRM31CR71H225KA88L) (CER 2.2 F, 50 V, 10% X7R 1206) (GRM32ER71H475KA88L) (CER 4.7 F, 50 V, 10% X7R 1210) C2 GRM188R61A225KE34 CER 2.2 F, 10 V, 10% X5R 0805 Murata C3 GRM21BR71A106KE51L CER 10 F, 10 V, 10% X7R 0805 Murata C1 Murata C4 GRM188R71E104KA01 CER 0.1 F, 25 V, 10% X7R 0603 Murata JP1, JP2, JP3 PRPN401PAEN Connector, header, 2 mm zip Sullins Electronics D1, D2 LTST-C190CKT Red LED; 0603 Lite-On Inc. D3 LTST-G190CKT Green LED; 0603 Lite-On Inc. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 18 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION (a) Top Layer (b) Middle Layer One (c) Middle Layer Two (d) Bottom Layer tc170 Figure 29. AAT3783A Evaluation Board Layer Details tc170-1 Figure 30. Magnified View of Exposed Paddles on AAT3783A Evaluation Board Top Layer Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 19 DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION 1.600 ± 0.050 0.230 ± 0.050 2.350 ± 0.050 4.000 ± 0.050 Index Area R0.15 (REF) Pin 1 ID 0.35 REF 0.700 ± 0.050 3.000 ± 0.050 0.450 ± 0.050 0.25 REF 0.430 ± 0.050 1.600 ± 0.050 Top View 0.750 ± 0.050 Bottom View 0 + 0.100 -0.000 0.230 ± 0.050 Side View All measurements are in millimeters. tc171 Figure 30. AAT3783A 16-pin TDFN Package Dimensions 4.00 ± 0.00 2.00 ± 0.05 Ø1.50 ± 0.10 1.10 ± 0.00 5.50 ± 0.05 12.00 ± 0.30 1.75 ± 0.10 4.40 ± 0.10 8.00 ± 0.10 3.40 ± 0.10 0.30 ± 0.05 Pin 1 Location All dimensions are in millimeters t0280 Figure 31. AAT3783A TDFN34-16 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 20 April 1, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 203159A DATA SHEET • AAT3783A: 1 A LINEAR LI-ION/POLYMER BATTERY CHARGER WITH 28 V OVER-VOLTAGE PROTECTION Ordering Information Model Name AAT3783A: 1 A linear li-ion/polymer battery charger with 28 V over-voltage protection Part Marking (Note 1) 5EXYY Manufacturing Part Number (Note 2) AAT3783AIRN-4.2 Evaluation Board Part Number AAT3783AIRN-4.2-EVB Note 1: XYY = assembly and date code. Note 2: Sample stock is generally held on part numbers listed in BOLD. Copyright © 2012-2014 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 203159A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 1, 2014 21