AP9211S-AL-HAC-7

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The AP9211S-AL-HAC-7 battery management system is an integrated power management IC (PMIC) comprising of a battery cell protection and charge and discharge controller, switchgear, and voltage regulator. This PMIC provides integrated low on-resistance switches, low dropout (LDO) regulators, and a set of analog peripherals for battery cell protection and control. It features current limiting and automatic compensation for temperature variation, enabling reliable battery protection and control in a compact footprint. The AP9211S-AL-HAC-7 battery management system is optimised for rechargeable cell-type and coin cell-type batteries, making it suitable for applications in consumer electronics, automotive, and telecoms.

The AP9211S-AL-HAC-7 battery management system has a primary task of protecting the battery and preventing it from overcharging or discharging. This is done by monitoring the battery voltage and current, and controlling the maximum charge and discharge current of the battery. The integrated cell protection decoder constantly monitors the cell voltage and sends a signal via the high-current switches to shut off power to the attached actuator, when needed. When the voltage falls below the over discharge threshold, the charge control loop will send a signal via the high-current switches to enable charging, also when needed. In addition, the integrated reset circuit will ensure direct, reliable and continuous reset of the connected actuator.

The integrated switchgear includes one high-current switch, two battery-feedback switches and one panic switch. The high-current switch is controlled by the cell protection decoder and is used to enable or disable charging and discharging. The two battery-feedback switches are used to control the signal level when power is supplied to the IC. The panic switch is used to signal a high-current shutdown, when needed.

The integrated voltage regulator integrated into the AP9211S-AL-HAC-7 PMIC is designed to provide stable voltage for the connected actuator, even when the battery voltage fluctuates. The integrated low dropout (LDO) regulator will provide a regulated output to the connected load, regardless of input voltage levels, temperature fluctuations and other input voltage variations. The voltage regulator will ensure smooth operation of the connected actuator and more efficient power utilization.

The AP9211S-AL-HAC-7 PMIC also provides an array of analog peripherals for advanced monitoring and control of the battery. This includes an analog anode voltage comparator, anode current sink, anode voltage mux, timing circuit and potential measurement circuitry. All of these analog resources provide enhanced monitoring and control of the battery, allowing for the protection of the battery and extending its lifetime.

In conclusion, the AP9211S-AL-HAC-7 PMIC battery management system is a comprehensive power management solution for consumer electronics, automotive and telecoms applications. The integrated high-current switches and voltage regulator enable reliable battery protection and control. The array of integrated analog peripherals provides robust functionality and advanced monitoring and control of the battery. The AP9211S-AL-HAC-7 PMIC is an ideal solution for applications requiring reliable, high-performance and cost-effective power management.

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