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MAX77928 Datasheet PDF

Analog Devices MAX77928

The MAX77928 is a 10A bi-directional 3:1/2:1/1:1 switched-capacitor converter (SCC) Direct Charger for a 1S Li-ion battery. For 1S charging configurations, the device can operate in forward mode as a step-down switched-capacitor converter with a 3:1 or 2:1 input-voltage-to-outputvoltage conversion ratio. For OTG power configurations, it can operate in reverse mode as a step-up converter with a 1:3 or 1:2 voltage conversion ratio.
Part No. MAX77928
Datasheet MAX77928 Download
Manufacturer
Analog Devices
Description 10A 3:1/2:1/1:1 Switched-Capacitor Direct Charger
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MAX77928 datasheet page 1 preview

GENERAL DESCRIPTION

For both directions, bypass mode (1:1 conversion ratio) is supported. These modes are I2C configurable. The device integrates 2-channel gate drivers to drive external MOSFET(s) or GaN FET(s) for overvoltage protection or input selection. The device can regulate the output voltage and input current. The regulation targets for these are I2C programmable. The device has various protection features such as input undervoltage lockout, input overvoltage lockout, output undervoltage lockout, output overvoltage lockout, overcurrent protection, flying capacitor short/open detection, reverse current protection, thermal regulation, alarm and shutdown, and watchdog timer. The device has a 12-bit ADC that can measure VIN voltage, PMID voltage, VEXT1 voltage, VEXT2 voltage, input current, output voltage, battery differential voltage, thermistor voltage, and die temperature. The device has an I2C interface that supports 1.8V rail and 1.2V rail without a VIO pin, with an SCL clock rate of up to 1.0MHz.
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