ON Semiconductor

The FAN5404 combines a highly integrated switched-mode charger, to minimize single-cell Lithium-ion (Li-ion) charging time from a USB power source, and a boost regulator to power a USB peripheral from the battery.The charging parameters and operating modes are programmable through an I2C Interface that operates up to 3.4Mbps. The charger and boost regulator circuits switch at 3MHz to minimize the size of external passive components.The FAN5404 provides battery charging in three phases: conditioning, constant current, and constant voltage.To ensure USB compliance and minimize charging time, the input current is limited to the value set through the I2C host. Charge termination is determined by a programmable minimum current level. A safety timer with reset control provides a safety backup for the I2C host.The integrated circuit (IC) automatically restarts the charge cycle when the battery falls below an internal threshold. If the input source is removed, the IC enters a high-impedance mode with leakage from the battery to the input prevented. Charge status is reported back to the host through the I2C port. Charge current is reduced when the die temperature reaches 120°C.The FAN5404 can operate as a boost regulator on command from the system. The boost regulator includes a soft-start that limits inrush current from the battery.The FAN5404 is available in a 1.96 x 1.87mm, 20-bump, 0.4mm pitch WLCSP package.

The FAN5405 combines a highly integrated switched-mode charger, to minimize single-cell Lithium-ion (Li-ion) charging time from a USB power source, and a boost regulator to power a USB peripheral from the battery.The charging parameters and operating modes are programmable through an I2C Interface that operates up to 3.4Mbps. The charger and boost regulator circuits switch at 3MHz to minimize the size of external passive components.The FAN5405 provides battery charging in three phases: conditioning, constant current, and constant voltage.To ensure USB compliance and minimize charging time, the input current is limited to the value set through the I2C host. Charge termination is determined by a programmable minimum current level. A safety timer with reset control provides a safety backup for the I2C host.The integrated circuit (IC) automatically restarts the charge cycle when the battery falls below an internal threshold. If the input source is removed, the IC enters a high-impedance mode with leakage from the battery to the input prevented. Charge status is reported back to the host through the I2C port. Charge current is reduced when the die temperature reaches 120°C.The FAN5405 can operate as a boost regulator on command from the system. The boost regulator includes a soft-start that limits inrush current from the battery.The FAN5405 is available in a 1.96 x 1.87mm, 20-bump, 0.4mm pitch WLCSP package.

The FAN54063 is a 1.55 A USB-compliant switch-mode battery charger featuring power path operation, USB OTG boost support, JEITA temperature control, and production test mode support.

The FAN54110 is a USB-compatible single-cell, linear Li-Ion battery charger with support for Dead Battery Provision (DBP). The maximum charge current is rated at 1 A and can be programmed from 100 mA to 1 A through the I2C interface, optimizing charging for various battery sizes. Dynamic Input Voltage Control ensures weak power sources can be used to power the FAN54110 without collapsing to an unusable input voltage for charging. Open-drain status pins, STAT and POK_B, provide a status of charging and input power. The STAT pin also notifies the system processor when an I2C interrupt occurs so the processor can take action based on the interrupt. The FAN54110 conforms to the constraints of the Dead Battery Provision within the BC1.2 specification, including a 30-minute timer that cannot exceed 45 minutes.

The FAN54120 is a USB-compatible single-cell, linear Li-Ion battery charger with "Power Back" Capability, It supports dead battery revival, pre-charge, fast charge, and float charge states.Fast charging current (IFAST) is set with an external resistor. Pre-charge (IPRE) and charge complete (ICHGEND) currents are factory set at IFAST/5.2 and IFAST/10, respectively. An open-drain ("STAT" ) pin provides charge and/or fault status indication. The "Power Back" enables to power accessories from the battery

The FAN54161UCX is a low loss direct battery charger, which charges the battery safely at 6 A and provides active protection, regulation and monitoring features.Integrated Protection and Regulation features control a pair of MOSFETs to ensure that the FAN54161UCX output voltage and current stay within a safe programmed operating range. Configurable hardware based safety features turn off the MOSFET in the event of a fault and notify the system.An integrated 10−bit Analog−to−Digital Converter (ADC) provides real−time monitoring of input, output voltage, currents and temperature so that the system host or microcontroller can effectively use this information to optimize adapter and charger configuration.

The FAN5421 is a highly integrated switched-mode charger that minimizes single-cell Li-Ion charging time.The charging parameters and operating modes are programmable through an I2C interface that operates up to 3.4 Mbps. The charger circuit switches at 3 MHz to minimize the size of external passive components.The FAN5421 provides battery charging in three phases: conditioning, constant current, and constant voltage.Charge termination is determined by a programmable minimum current level. A safety timer with reset control provides a safety backup for the I2C host.The IC automatically adapts to current-limited power sources by reducing the charge current to keep the input supply above a programmed voltage (default 4.52 V).The IC automatically restarts the charge cycle when the battery falls below an internal threshold. If the input source is removed, the IC enters a high-impedance mode with leakage from the battery to the input prevented. Charge status is reported back to the host through the I2C port. Charge current is reduced when the die temperature reaches 120°C.The FAN5421 is available in a 1.96 x 1.87 mm, 20-bump, 0.4 mm pitch, Wafer-Level Chip-Scale Package (WLCSP).