电源管理IC开发工具 BQ24150A Evaluation Mod
The is an evaluation module for bq24150A, is a compact, flexible, high efficiency, USB friendly switch mode charge management device for single cell Li ion and Li polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The bq24150A integrates a synchronous PWM controller, power MOSFETs, input current sensing, high accuracy current and voltage regulation, and charge termination, into a small WCSP package. The bq24150A charges the battery in three phases conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface.
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- High efficiency fully integrated NMOS-NMOS synchronous buck charger with 3MHz frequency
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- Integrated power FETs for up to 1.25A charge rate
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- Programmable battery voltage, charge current, and input current via I2C interface
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- Input operating range from 4V to 6V
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- Boost mode operation for USB OTG
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- LED Indication for status signals
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- Test points for key signals available for testing purpose, easy probe hook-up
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- Jumpers available and it is easy to change connections
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- Automatic high impedance mode for low power consumption
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- Synchronous fixed frequency PWM controller operating at 3MHz with 0% to 99.5% duty cycle
It is important to operate this EVM within the input voltage range of 4V to 6V and the output voltage range of 0V to 4.44V. Exceeding the specified input range may cause damage to the EVM.