ADBMS2950B
推荐新设计使用Battery Pack Monitor
- 产品模型
- 2
产品详情
- Battery pack current measurement
- Buffered analog inputs
- Continuous operation option
- Lossless measurement for coulomb counting
- 1 ms update rate
- ±0.1% maximum gain error
- ±1 µV maximum offset
- Redundant implementation
- Battery pack voltage measurement
- Buffered analog inputs
- Synchronous with current measurement
- Differential and single-ended mode
- Redundant implementation
- 10 additional voltage measurement channels
- Buffered analog inputs
- On-demand operation
- Differential and single-ended mode
- Redundant implementation
- Overcurrent detection
- Triple redundancy with majority voting
- PWM output options
- Built-in isoSPI™ interface
- 2 Mbps isolated serial communications
- Capacitor or transformer coupled
- Daisy-chaining option
- 4-wire SPI option
- General-purpose digital IO
- Six general-purpose outputs (GPOs)
- Dual threshold read-back of GPOs
- Four GPIOs configurable as an I2C or SPI controller
- 48-Lead side-solderable QFN package
The ADBMS2950B is a battery pack monitor for current or voltage sense applications. It measures the current flowing in and out of a battery pack by sensing the voltage drop over a shunt resistor with a very low offset.
The ADBMS2950B also detects overcurrent conditions using fast overcurrent analog-to-digital converters (ADCs) with digital threshold comparators and communicate their results through dedicated overcurrent alert lines with minimum delay. It features a total of 12 internally buffered high impedance inputs for measuring voltages from external sensors or resistor-dividers, enabling measurement of pack voltages, temperatures, HV-Link voltages, chassis isolation, and the supervision of the state of contactors and fuses.
Six digital outputs (GPOs) supporting open-drain or push-pull can be used to control high voltage transistors to disconnect external resistor-dividers. Four digital general-purpose inputs/outputs (GPIOs) also allow operation as an I2C or SPI controller interface to address an external electronically erasable programmable read‐only memory (EEPROM) or other serial peripherals.
The built-in serial interface of the ADBMS2950B can be configured for SPI or isolated isoSPI communication to the host. An additional isoSPI port allows to connect a daisy-chain of the ADBMS2950B devices, which is optionally extended with the ADBMS6830B cell monitor.
Applications
- Backup battery systems
- Grid energy storage
参考资料
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产品型号 | 引脚/封装图-中文版 | 文档 | CAD 符号,脚注和 3D模型 |
---|---|---|---|
ADBMS2950BCCSZ | LFCSP SIDESOLDERABLE | ||
ADBMS2950BCCSZ-RL | LFCSP SIDESOLDERABLE |
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