Specification	MAX77986BEFD+T

Battery Chemistry [custom]	Lithium Ion/Polymer
Battery Pack Voltage	12 V
Charge Current - Max [Max]	5.5 A
Current - Charging	Constant - Programmable
Fault Protection	Over-Under Voltage, Over Temperature, Over Current, Short Circuit
Interface	I2C
Mounting Type	Surface Mount
Number of Cells	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	32-PowerUFQFN
Programmable Features	Timer, Current, Voltage
Supplier Device Package	32-FC2QFN (4x4)
Voltage - Supply (Max) [Max]	19 V

MAX77986 Series

19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

Part	Package / Case	Battery Pack Voltage	Number of Cells	Supplier Device Package	Mounting Type	Interface	Fault Protection	Current - Charging	Battery Chemistry [custom]	Voltage - Supply (Max) [Max]	Programmable Features	Operating Temperature [Max]	Operating Temperature [Min]	Charge Current - Max [Max]
Analog Devices Inc./Maxim Integrated MAX77986BEFD+T	32-PowerUFQFN	12 V	1	32-FC2QFN (4x4)	Surface Mount	I2C	Over Current Over Temperature Over-Under Voltage Short Circuit	Constant - Programmable	Lithium Ion/Polymer	19 V	Current Timer Voltage	85 °C	-40 C	5.5 A
Analog Devices Inc./Maxim Integrated MAX77986AEFD+T	32-PowerUFQFN	12 V	1	32-FC2QFN (4x4)	Surface Mount	I2C	Over Current Over Temperature Over-Under Voltage Short Circuit	Constant - Programmable	Lithium Ion/Polymer	19 V	Current Timer Voltage	85 °C	-40 C	5.5 A
Analog Devices Inc./Maxim Integrated MAX77986BEFD+	32-PowerUFQFN	12 V	1	32-FC2QFN (4x4)	Surface Mount	I2C	Over Current Over Temperature Over-Under Voltage Short Circuit	Constant - Programmable	Lithium Ion/Polymer	19 V	Current Timer Voltage	85 °C	-40 C	5.5 A
Analog Devices Inc./Maxim Integrated MAX77986CEFD+	32-PowerUFQFN	12 V	1	32-FC2QFN (4x4)	Surface Mount	I2C	Over Current Over Temperature Over-Under Voltage Short Circuit	Constant - Programmable	Lithium Ion/Polymer	19 V	Current Timer Voltage	85 °C	-40 C	5.5 A
Analog Devices Inc./Maxim Integrated MAX77986AEFD+	32-PowerUFQFN	12 V	1	32-FC2QFN (4x4)	Surface Mount	I2C	Over Current Over Temperature Over-Under Voltage Short Circuit	Constant - Programmable	Lithium Ion/Polymer	19 V	Current Timer Voltage	85 °C	-40 C	5.5 A
Analog Devices Inc./Maxim Integrated MAX77986CEFD+T	32-PowerUFQFN	12 V	1	32-FC2QFN (4x4)	Surface Mount	I2C	Over Current Over Temperature Over-Under Voltage Short Circuit	Constant - Programmable	Lithium Ion/Polymer	19 V	Current Timer Voltage	85 °C	-40 C	5.5 A

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	0	$ 3.27
	Tape & Reel (TR)	2500	$ 3.02

Description

General part information

MAX77986 Series

TheMAX77985/MAX77986 is a high-performance high input range 3.5/5.5A fast charger with Smart Power SelectorTM. The IC can operate as a reverse boost without an additional inductor, allowing the battery to share its power through the charging port with voltage programmable from 5V to 12V. The device features fully integrated low-loss power switches to provide a small solution size and high efficiency, even at high input voltage and high charging current. Its high switching frequency allows the use of a smaller sized inductor. Li-ion, Li-polymer, and LiFePO4 battery chemistries are supported. The IC is compatible with USB Power Delivery sources with input current capability up to 5A. It can also provide fast unplug detection of 5V, 9V, and 15V sources for dynamic management of system load. The IC also helps mitigate EMI with the spread spectrum feature. The IC features true load disconnection in reverse boost mode and has an adjustable output current protection limit. The device is highly flexible and programmable through I2C configuration.The battery charger includes a Smart Power Selector to accommodate a wide range of battery sizes and system loads. The Smart Power Selector allows the system to start up gracefully as soon as an input source is available, even when the battery is deeply discharged (dead battery) or missing. It can be configured so that when power is applied to the charger input, the battery charging can automatically start.Note:For parts with chip revision 0b001 (PASS1), contact Analog Devices for Rev 0 of the data sheet. This information can be read from the CHIP_REVISION (0x01) register.APPLICATIONSGaming DevicesVR ApplicationsmPOSTablet PCs

Documents

Technical documentation and resources

Datasheet

MAX77975/MAX77976 to MAX77985/MAX77986 Migration Guide (Rev.0)

Spec Notice

Package Drawing - 23-LFCSP-4X4X0.55

Package Drawing