DS2760 High-Precision Li+ Battery Monitor Data sheet
■The DS2760 High-Precision Li+ Battery Monitor is a data acquisition, information storage, and safety protection device tailored for cost-sensitive battery pack applications. This low-power device integrates precise temperature, voltage, and current measurement, nonvolatile data storage, and Li+ protection into the small footprint of either a TSSOP package or flip chip. The DS2760 is a key component in applications including remaining capacity estimation, safety monitoring, and battery-specific data storage. Via its 1-Wire interface, the DS2760 gives the host system read/write access to status and control registers, instrumentation registers, and general purpose data storage. Each device has a unique factory-programmed 64-bit net address which allows it to be individually addressed by the host system, supporting multi-battery operation. The DS2760 is capable of performing temperature, voltage and current measurement to a resolution sufficient to support process monitoring applications such as battery charge control, remaining capacity estimation, and safety monitoring. Temperature is measured using an on-chip sensor, eliminating the need for a separate thermistor. Bidirectional current measurement and accumulation are accomplished using either an internal 25mΩ sense resistor or an external device. The DS2760 also features a programmable I/O pin that allows the host system to sense and control other electronics in the pack, including switches, vibration motors, speakers and LEDs. Three types of memory are provided on the DS2760 for battery information storage: EEPROM, lockable EEPROM and SRAM. EEPROM memory saves important battery data in true nonvolatile memory that is unaffected by severe battery depletion, accidental shorts or ESD events. Lockable EEPROM becomes ROM when locked to provide additional security for unchanging battery data. SRAM provides inexpensive storage for temporary data.
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DS2760 、 DS2760AE+ 、 DS2760BE+ 、 DS2760AE+T&R 、 DS2760 BE+T&R 、 DS2760AE+025 、 DS2760BE+025 、 DS2760AE+025/T&R 、 DS2760BE+025/T&R 、 DS2760AX 、 DS2760BX 、 DS2760AX-025 、 DS2760BX-025 、 DS2760AE 、 DS2760BE 、 DS2760AE/T&R 、 DS2760 BE/T&R 、 DS2760AE-025 、 DS2760BE-025 、 DS2760AE-025/T&R 、 DS2760BE-025/T&R |
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Datasheet |
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Please see the document for details |
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TSSOP |
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English Chinese Chinese and English Japanese |
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010906 |
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289 KB |
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