AAT3690IWP-4.2-T1 Advanced Analog Technology, Inc., AAT3690IWP-4.2-T1 Datasheet
AAT3690IWP-4.2-T1
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AAT3690IWP-4.2-T1 Summary of contents
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General Description The AAT3690 BatteryManager is a highly integrat- ed single-cell lithium-ion/polymer battery charger IC designed to operate with USB port and AC adapter inputs. It requires the minimum number of external components. The AAT3690 precisely regulates battery charge voltage ...
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Pin Descriptions Pin # Name Type 1, 10 USB In 2 BAT In/Out 3 ADP In 4 GND Ground In/Out 7 STAT2 Out 8 STAT1 Out 9 CT In/Out 11 USBSET In/Out 12 ADPSET In/Out ...
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Absolute Maximum Ratings Symbol Description V USB, ADP, <30ms, Duty Cycle <10 USB, ADP Continuous P V BAT, USBSEL, USBSET, ADPSET, STAT1, STAT2, TS, CT Operating Junction Temperature Range J T Maximum Soldering Temperature (at ...
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Electrical Characteristics -40°C to +85°C, unless otherwise noted. Typical values are at T ADP A Symbol Description Operation USB, ADP USB Port or Adapter Voltage Range ADP Voltage Level to Disable DSBL ...
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Electrical Characteristics -40°C to +85°C, unless otherwise noted. Typical values are at T ADP A Symbol Description Logic Control / Protection V Input High Threshold EN(H) V Input Low Threshold EN(L) Constant Current Mode Time ...
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Typical Characteristics I vs. R FASTCHARGE SET 10000 1000 USB 100 (kΩ) SET Recharge Voltage vs. Temperature 4.14 4.13 4.12 4.11 ADP 4.10 4.09 USB 4.08 4.07 4.06 4.05 4.04 -50 - Temperature (°C) ...
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Typical Characteristics USB Charging Current vs. Battery Voltage = 8.06kΩ Ω USBSET 600 500 400 300 200 100 0 2.5 3 3.5 Battery Voltage (V) USB Fast Charge Current vs. Supply Voltage ; USB = 8.06kΩ Ω ) ...
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Typical Characteristics Adapter Mode Supply Current vs. ADPSET Resistor 0.8 0.7 0.6 0.5 Constant Current 0.4 0.3 0.2 0.1 0 ADPSET Resistor (kΩ Ω ) Counter Timeout vs. Temperature (CT = 0.1μ μ ...
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Functional Block Diagram USB USBSET Reduction ADPSET ADP Voltage Sense STAT1 STAT2 EN Functional Description The AAT3690 is a highly integrated single-cell lithi- um-ion/polymer battery charger IC designed to operate with USB port and AC adapter inputs, while requiring a ...
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Charging Operation Regardless of which charge input function is selected (i.e., either the adapter input or USB input), the AAT3690 has three basic modes for the battery charge cycle: constant current/fast charge; constant voltage; and end of charge (see Figure ...
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System Operation Flow Chart Power On Power On USB Loop Reset Reset Conditions Monitor Yes Yes Recharge Test Current Phase Test No V > V RCH BAT Voltage Phase Test 3690.2007.01.1.2 Lithium-Ion/Polymer Battery Charger ADP Yes Power Select USB ADP ...
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Application Information AC Adapter / USB System Power Charging Adapter Mode In the adapter mode, constant current charge lev- els up to 1.0A can be programmed by the user. The AAT3690 system control will always select the adapter input over ...
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ADP (kΩ Ω SET 50 N/A 75 N/A 100 84.5 200 43.2 300 28.0 400 21.0 500 16.9 600 13.3 700 11.5 800 10.2 900 9.09 1000 8.06 Table 1: Resistor Values. The USB charge reduction ...
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Protection Circuitry Programmable Watchdog Timer The AAT3690 contains a watchdog timing circuit for the adapter input charging mode. No watchdog tim- ing functions are active for the USB input mode. Typically, a 0.1μF ceramic capacitor is connected between the CT ...
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Battery Charge Status Indication The AAT3690 has two status LED driver outputs. These two LEDs can indicate simple functions such as no battery charge activity, battery charg- ing, charge complete, and charge fault. Status Indicator Display Simple system charging status ...
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Thermal Considerations The AAT3690 is offered in a 3x3mm TDFN pack- age which can provide up to 2.0W of power dissi- pation when it is properly bonded to a printed cir- cuit board and has a maximum thermal resistance of ...
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Capacitor Selection Input Capacitor In general good design practice to place a decoupling capacitor between the ADP and USB pins and ground. An input capacitor in the range of 1μF to 22μF is recommended. If the source supply ...
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... Figure 4: AAT3690 Evaluation Board Top Side Layout. Component Part Number U1 AAT3690IWP-4.2-T1 R1, R2 Chip Resistor R3 Chip Resistor R4, R5 Chip Resistor C1, C2, C3 GRM21BR61A106KE19 C4 GRM188R71C104KA01 JP1 PRPN401PAEN JP2 Chip Resistor D1 CMD15-21SRC/TR8 D2 CMD15-21VGC/TR8 DS1 (a, b) BAV74LT-A Table 3: AAT3690 Evaluation Board Bill of Materials. 18 1.0A USB Port/Adapter Lithium-Ion/Polymer Battery Charger Figure 5: AAT3690 Evaluation Board Bottom Side Layout ...
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... A solder fillet at the exposed copper edge cannot be guaranteed and is not required to ensure a proper bottom solder connection. 3690.2007.01.1.2 Lithium-Ion/Polymer Battery Charger Marking Part Number (Tape and Reel) 1 RUXYY TDFN33-12 Detail "A" 1.70 ± 0.05 Bottom View 0.05 ± 0.05 Side View 1.0A USB Port/Adapter 2 AAT3690IWP-4.2-T1 0.43 ± 0.05 0.1 REF Pin 1 Indicator (optional) Detail "A" 19 ...
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Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves ...