AAT3681AIJS-4.2-2-T1 ANALOGICTECH [Advanced Analogic Technologies], AAT3681AIJS-4.2-2-T1 Datasheet
AAT3681AIJS-4.2-2-T1
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AAT3681AIJS-4.2-2-T1 Summary of contents
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General Description The AAT3681A BatteryManager is an integrated sin- gle cell lithium-ion/polymer battery charger IC, designed to operate from a DC power source or USB port input voltage of 7.5V. It requires just one external component. The ...
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Pin Description Pin # Symbol Type ISET In/Out 3 BAT In/Out 4 ADP Power In 5 STAT Out GND Power Pin Configuration 2 500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger Function ...
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AAT3681A Feature Options Product Trickle Charge AAT3681A AAT3681A-1 AAT3681A-2 AAT3681A-3 Absolute Maximum Ratings Symbol Description V ADP Continuous P V BAT, STAT, ISET Operating Junction Temperature Range J T Maximum Soldering Temperature (at Leads) LEAD Thermal Information ...
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Electrical Characteristics -25°C to +85°C, unless otherwise noted. Typical values are T ADP A Symbol Description Operation V Adapter Voltage Range ADP Under-Voltage Lockout (UVLO) V UVLO UVLO Hysteresis I Operating Current OP I Shutdown ...
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Typical Characteristics Constant Charging Current vs. Set Resistor Values 1000 100 (kΩ Ω SET Charging Current vs. Battery Voltage (AAT3681A-1 only) 600 R = 3.24kΩ SET 500 400 R = 5.36kΩ SET 300 R ...
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Typical Characteristics Constant Charging Current vs. Temperature = 8.06kΩ Ω SET 210 208 205 203 200 198 195 193 190 -50 - Temperature (°C) Operating Current vs. Temperature = 8.06kΩ Ω SET 550 500 ...
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Typical Characteristics Recharging Threshold Voltage vs. Temperature = 8.06kΩ; Ω; AAT3681A, AAT3681A-1 and AAT3681A-2 only) (R SET 4.18 4.16 4.14 4.12 4.10 4.08 4.06 4.04 4.02 -50 - Temperature (°C) V vs. Supply Voltage IH_ENABLE = 8.06kΩ Ω ...
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Functional Block Diagram ADP ISET Charge STAT Status EN Functional Description The AAT3681A is a high performance battery charger designed to charge single cell lithium- ion/polymer batteries with up to 500mA of current from an external power source ...
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Charge Complete Voltage Regulated Current Constant Current Mode Voltage Threshold Trickle Charge and Termination Threshold Figure 1: Current vs. Voltage Profile During Charging Phases. Battery Preconditioning Before the start of charging, the AAT3681A checks several conditions in order to assure ...
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System Operation Flow Chart No Shut Down No (AAT3681A-1) No Recharge Test V > V RCH BAT 10 500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger Enable Yes Power Input Voltage V > UVLO Yes Fault Conditions ...
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Application Information Adapter or USB Power Input Constant current charge levels up to 500mA may be programmed by the user when powered from a sufficient input power source. The AAT3681A will operate from the adapter input over a 4.0V to ...
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Protection Circuitry 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 (V voltage condition occurs, the AAT3681A charge ...
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Figure 3 shows the relationship of maximum power dissipation and ambient temperature of AAT3681A. 1000 800 600 400 200 (° ° Figure 3: Maximum Power Dissipation. Next, the power dissipation can be ...
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Printed Circuit Board Layout Considerations For the best results recommended to physi- cally place the battery pack as close as possible Figure 5: AAT3681A Evaluation Board Top Layer. V IN(ADP) C1 10μF Figure 7: AAT3681A Evaluation Board Schematic ...
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... Component Part Number U1 AAT3681AIJS-T1 R1 Chip Resistor R8 Chip Resistor JP1 Chip Resistor C1 GRM21BR61A106KE19L C2 GRM21BR71A225KA01L JP2 PRPN401PAEN LED1 CMD15-21SRC/TR8 Table 3: AAT3681A Evaluation Board Bill of Materials. 3681A.2007.10.1.2 500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger Description USB/ADP Battery Charger; SC70JW-8 Package 1kΩ, 5%, 1/4W; 0603 8.06kΩ, 1%, 1/4W; 0805 0Ω ...
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... XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD. 16 500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger Package Marking 1 Part Number (Tape and Reel) SC70JW-8 UTXYY SC70JW-8 UEXYY SC70JW-8 VSXYY SC70JW-8 XBXYY AAT3681A 2 AAT3681AIJS-4.2-T1 AAT3681AIJS-4.2-1-T1 AAT3681AIJS-4.2-2-T1 AAT3681AIJS-4.2-3-T1 3681A.2007.10.1.2 ...
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Package Information 0.50 BSC 0.50 BSC 0.50 BSC 2.00 ± 0.20 7° ± 3° All dimensions in millimeters. © Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech ...