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DS2712E+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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DS2712E+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 15 page  1 of 15 GENERAL DESCRIPTION The DS2711 and DS2712 are ideal for in-system or stand-alone charging of 1 or 2 AA or AAA NiMH “loose” cells. Temperature, voltage, and charge time are monitored to provide proper fast-charging control algorithms for nickel metal hydride (NiMH) batteries. Battery tests are included to detect defective or inappropriate cells such as alkaline primary batteries. The DS2711/DS2712 support series and parallel topologies, with independent monitoring and control of each cell. Charging of NiCd chemistry cells is also supported. APPLICATIONS Desktop/Stand-Alone Chargers (AAA/AA) Digital Still Cameras Music Players Games Toys FEATURES Charge 1 or 2 NiMH Cells Detect and Avoid Charging Alkaline Cells Precharge Deeply Depleted Cells Fast Charge NiMH with - ∆V Termination Sensitivity of 2mV (typ) Monitor Voltage, Temperature, and Time for Safety and Secondary Termination Regulate Charge Current: Linear Control (DS2711) Switch-Mode Control (DS2712) Drive pMOS or pnp-Type Pass Element or Switch, or an Optocoupler Compatible with Popular Optocouplers and Integrated Primary-Side PWM Controllers Small 16-Pin SO or TSSOP Packages PIN CONFIGURATION VP2 16 VP1 15 CC1 1 CC2 2 LED1 3 VSS 4 LED2 5 CSOUT 6 VN1 7 VN0 8 THM2 14 THM1 13 VDD 12 TMR 11 CTST 10 DMSEL 9 PIN DESCRIPTION PIN NAME FUNCTION 1 CC1 Cell 1 Charge-Control Output 2 CC2 Cell 2 Charge-Control Output 3 LED1 Cell 1 Status 4 VSS Ground Reference and Chip- Supply Return 5 LED2 Cell 2 Status, Mode-Select Input 6 CSOUT Current-Sense Output 7 VN1 Current-Sense + Input 8 VN0 Current-Sense - Input 9 DMSEL Display-Mode Select 10 CTST Cell Test Threshold Set 11 TMR Charge Timer Set 12 VDD Chip-Supply Input (4.0V to 5.5V) 13 THM1 Cell 1 Thermistor Input 14 THM2 Cell 2 Thermistor Input 15 VP1 Cell 1 Positive-Terminal Sense Input 16 VP2 Cell 2 Positive-Terminal Sense Input DS2711/DS2712 Loose-Cell NiMH Chargers SO (150 mils) TSSOP (4.4mm) 19-5826; Rev 4/11 |
Similar Part No. - DS2712E+ |
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Similar Description - DS2712E+ |
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