MAX1894, MAX1924 Advanced Li+ Battery-Pack Protectors

The MAX1894 MAX1924 are lithium-ion/lithium-polymer (Li+) battery-pack protector ICs for 3- or 4-series Li+ battery packs. The MAX1894 MAX1924 enhance the useful operating life of Li+ batteries by monitoring individual cell voltages and preventing over/undervoltage conditions. The MAX1894 MAX1924 also protect the battery pack against charge current, discharge current, and pack-short fault conditions.
In case of a fault condition, on-board drivers control external P-Channel MOSFETs which disconnect the cells from the pack external terminals. The external protection MOSFETs are connected in a common-source configuration that does not require external pullup resistors. The MAX1894 MAX1924 use only one current-sense resistor to achieve the protection features. All protection thresholds and delays do not require any external components and are trimmed at the factory.
If any cell voltage drops below the undervoltage threshold, the MAX1894 MAX1924 disconnect the pack from the load and power down to prevent deep discharge of the pack. The MAX1894 MAX1924 offer a trickle-charge feature, which provides a low-current path to safely charge a deeply discharged pack. The MAX1894 MAX1924 also have two logic-level inputs, which CAN be used by a Microcontroller to disable the protection MOSFETs and to put the device in shutdown. The MAX1894 MAX1924 have low quiescent current (30A typ) and ultra-low shutdown current (0.8A typ) to prevent deep-cell discharge.
The MAX1894X is designed for 4-series battery packs, without hysteresis on the protection thresholds. The MAX1924V and MAX1924X include hysteresis for the 3- and 4-series packs, respectively.
By Maxim Integrated Products
Part Manufacturer Description Datasheet Samples
MAX1924VEEE Maxim Integrated Products Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1924VEEE+T Maxim Integrated Products Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1924VEEE+ Maxim Integrated Products Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1924XEEE+ Maxim Integrated Products Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1924XEEE+T Maxim Integrated Products Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1924VEEE-T Maxim Integrated Products Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1924XEEE-T Maxim Integrated Products Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1924XEEE Maxim Integrated Products Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1894EVKIT Maxim Integrated Products Evaluation Kit for the MAX1894, MAX1924
MAX1924 's PackagesMAX1924 's pdf datasheet
MAX1924VEEE QSOP
MAX1924VEEE-T QSOP
MAX1924XEEE QSOP
MAX1924XEEE-T QSOP




MAX1924 Pinout, Pinouts
MAX1924 pinout,Pin out
This is one package pinout of MAX1924,If you need more pinouts please download MAX1924's pdf datasheet.

MAX1924 Application circuits
MAX1924 circuits
This is one application circuit of MAX1924,If you need more circuits,please download MAX1924's pdf datasheet.


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