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.
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
DS2711/DS2712 Loose-Cell NiMH Chargers
PIN CONFIGURATION
CC1 CC2 LED1 VSS LED2 CSOUT .
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | DS2710 |
Maxim |
Single-Cell NiMH Charger | |
2 | DS2712 |
Maxim Integrated Products |
(DS2711 / DS2712) Loose Cell NiMH Chargers | |
3 | DS2714 |
Maxim Integrated Products |
Quad Loose Cell NiMH Charger | |
4 | DS2715 |
Dallas Semiconducotr |
NiMH Battery Pack Charge Controller | |
5 | DS2703 |
Dallas Semiconductor |
SHA-1 Battery Pack Authentication IC | |
6 | DS2704 |
Maxim Integrated Products |
1280-Bit EEPROM | |
7 | DS2705 |
Maxim Integrated Products |
SHA-1 Authentication Master | |
8 | DS2720 |
Dallas Semiconducotr |
Efficient/ Addressable Single-Cell Rechargeable Lithium Protection IC | |
9 | DS2726 |
Maxim Integrated |
5-Cell to 10-Cell Li+ Protector | |
10 | DS2731 |
Maxim |
Cache-Memory Battery-Backup Management | |
11 | DS2740 |
Maxim Integrated |
High-Precision Coulomb Counter | |
12 | DS2741 |
Maxim Integrated Products |
Current Monitor and Accumulator |