AAT3681-1 ANALOGICTECH [Advanced Analogic Technologies], AAT3681-1 Datasheet
AAT3681-1
Related parts for AAT3681-1
AAT3681-1 Summary of contents
Page 1
... Full Battery Charge Auto Turn Off/Sleep Mode/Charge Termination • Shutdown Current <1μA • Automatic Trickle Charge for Battery Pre-Conditioning (AAT3681 Trickle Charge Option) • Over-Voltage and Emergency Thermal Protection • Power On Reset and Soft Start • LED Status Pin • ...
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... Ground connection. SC70JW-8 (Top View) GND ISET GND 2 7 BAT GND 3 6 ADP STAT PRODUCT DATASHEET PRODUCT DATASHEET AAT3681 AAT3681 3681.2007.12.1.5 3681.2007.12.1.5 ...
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... TM TM BatteryManager BatteryManager USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger AAT3681 Feature Options Product Trickle Charge AAT3681 Yes AAT3681-1 No Absolute Maximum Ratings Symbol Description V ADP Continuous P V BAT, STAT, ISET Operating Junction Temperature Range ...
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... Pre-Charge Current Charge Termination Threshold Current TERM CH 1. The AAT3681 output charge voltage is specified over the 0° to 70°C ambient temperature range; operation over the -40°C to +85°C temperature range is guaranteed by design Conditions Rising Edge Charge Current = 200mA ...
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... USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger Typical Characteristics Constant Charging Current vs. Set Resistor Values 1000 100 100 (kΩ Ω SET Charging Current vs. Battery Voltage (AAT3681-1 Only) 600 R = 3.24K SET 500 400 R = 5.36K SET 300 R = 8.06K SET 200 ...
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... PRODUCT DATASHEET PRODUCT DATASHEET AAT3681 AAT3681 V = 3.6V BAT V = 2.85V BAT 10 (kΩ Ω SET Preconditioning Threshold Voltage vs. Temperature = 8.06kΩ Ω ; AAT3681 Only) (R SET - Temperature (°C) (AAT3681 Only) = 5.36kΩ = 8.06kΩ = 16.2kΩ = 31.6kΩ 4 ...
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... PRODUCT DATASHEET PRODUCT DATASHEET AAT3681 AAT3681 Shutdown Current vs. Supply Voltage = 8.06kΩ Ω SET 85°C 25°C -40°C 0 4.0 4.5 5.0 5.5 6.0 6.5 Supply Voltage (V) V vs. Supply Voltage IL_ENABLE = 8.06kΩ ...
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... The AAT3681 has four basic modes for the battery charge cycle: pre-conditioning/trickle charge; constant current/fast charge; constant voltage; and end of charge (see Figure 1). (AAT3681-1 does not have trickle charge ...
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... When these UVLO conditions have been met and a battery is connected to the BAT pin, the AAT3681 checks the state of the bat- tery. If the cell voltage is below the preconditioning volt- age threshold (V ), the charge control begins precon- MIN ditioning the cell ...
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... TM TM BatteryManager BatteryManager USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger System Operation Flow Chart No Shut Down No (AAT3681-1) No Recharge Test V > V RCH BAT 10 10 Enable Yes Power Input Voltage V > UVLO Yes Fault Conditions ...
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... Refer to Table 1 for recommended R desired constant current charge level. Adapter Input Charge Inhibit and Resume The AAT3681 has a UVLO and power on reset feature so that if the input supply to the ADP pin drops below the UVLO threshold, the charger will suspend charging and shut down ...
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... BatteryManager USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger Charge Status Output The AAT3681 provides battery charge status via a status pin. This pin is internally connected to an N-channel open drain MOSFET, which can be used to drive an exter- nal LED. The status pin can indicate the following condi- ...
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... If the AAT3681 adapter input used in a system with an external power supply source, such as a typical AC-to- DC wall adapter, then a C should be used. A larger input capacitor in this applica- = 25° ...
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... Figure 7: AAT3681 Evaluation Board Schematic Diagram. Component Part Number U1 AAT3681IJS-T1 R1 Chip Resistor R8 Chip Resistor JP1 Chip Resistor C1 GRM21BR61A106KE19L C2 GRM21BR71A225KA01L JP2 PRPN401PAEN LED1 CMD15-21SRC/TR8 Table 3: AAT3681 Evaluation Board Bill of Materials Figure 6: AAT3681 Evaluation Board JP2 AAT3681 GND 2 7 ISET GND 3 6 BAT GND 4 ...
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... PRODUCT DATASHEET PRODUCT DATASHEET AAT3681 AAT3681 Part Number (Tape and Reel) 2 AAT3681IJS-4.2-T1 AAT3681IJS-4.2-1-T1 0.048REF 4° ± 4° 2.10 ± 0. ...