Specification	MAX77734GENP+T

Battery Chemistry [custom]	Lithium Ion/Polymer
Battery Pack Voltage	4.6 V
Charge Current - Max [Max]	300 mA
Current - Charging	Constant - Programmable
Fault Protection	Over Temperature
Interface	I2C
Mounting Type	Surface Mount
Number of Cells	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	20-XFBGA, WLBGA
Programmable Features	Voltage, Current
Supplier Device Package	20-WLP
Supplier Device Package [x]	1.97
Supplier Device Package [y]	2.23
Voltage - Supply (Max) [Max]	5.5 V

MAX77734 Series

Ultra-Low Power Tiny PMIC with Power Path Charger for Small Li+ and 150mA LDO

Part	Programmable Features	Current - Charging	Battery Chemistry [custom]	Supplier Device Package [y]	Supplier Device Package	Supplier Device Package [x]	Fault Protection	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Max) [Max]	Interface	Mounting Type	Charge Current - Max [Max]	Number of Cells	Package / Case	Battery Pack Voltage	Supplied Contents	Function	Type	Secondary Attributes	Utilized IC / Part	Contents
Analog Devices Inc./Maxim Integrated MAX77734GENP+T	Current Voltage	Constant - Programmable	Lithium Ion/Polymer	2.23	20-WLP	1.97	Over Temperature	85 °C	-40 C	5.5 V	I2C	Surface Mount	300 mA	1	20-XFBGA WLBGA	4.6 V
Analog Devices Inc./Maxim Integrated MAX77734CENP+	Current Voltage	Constant - Programmable	Lithium Ion/Polymer	2.23	20-WLP	1.97	Over Temperature	85 °C	-40 C	5.5 V	I2C	Surface Mount	300 mA	1	20-XFBGA WLBGA	4.6 V
Analog Devices Inc./Maxim Integrated MAX77734EVKIT#																	Board(s)	Battery Charger	Power Management	Graphical User Interface (GUI)	MAX77734	Board(s)
Analog Devices Inc./Maxim Integrated MAX77734BENP+T	Current Voltage	Constant - Programmable	Lithium Ion/Polymer	2.23	20-WLP	1.97	Over Temperature	85 °C	-40 C	5.5 V	I2C	Surface Mount	300 mA	1	20-XFBGA WLBGA	4.6 V
Analog Devices Inc./Maxim Integrated MAX77734QENP+T	Current Voltage	Constant - Programmable	Lithium Ion/Polymer	2.23	20-WLP	1.97	Over Temperature	85 °C	-40 C	5.5 V	I2C	Surface Mount	300 mA	1	20-XFBGA WLBGA	4.6 V
Analog Devices Inc./Maxim Integrated MAX77734CENP+T	Current Voltage	Constant - Programmable	Lithium Ion/Polymer	2.23	20-WLP	1.97	Over Temperature	85 °C	-40 C	5.5 V	I2C	Surface Mount	300 mA	1	20-XFBGA WLBGA	4.6 V

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	$ 4.83
	Tape & Reel (TR)	2500	$ 2.65
Mouser	N/A	1	$ 6.53
		10	$ 4.74
		25	$ 4.42
		100	$ 3.88
		250	$ 3.69
		500	$ 3.31
		1000	$ 2.79
		2500	$ 2.46

Description

General part information

MAX77734 Series

The MAX77734 is a tiny PMIC for applications where size and simplicity are critical. The IC integrates a linear-mode Li+ battery charger, low-dropout linear regulator (LDO), analog multiplexer, and dual-channel current sink driver.The charger is designed for small-battery systems that require accurate termination as low as 0.375mA. The circuit can instantly regulate the system voltage when an input source is connected even if the battery is depleted.The 150mA LDO's output is programmable between 0.8V and 3.975V with I²C. The analog MUX enables an external ADC to perform conversions on battery V&I signals for power monitoring. The current sinks are capable of sinking 12.8mA each and can be programmed for LEDs to blink in custom patterns.The MAX77734 is available in a 20-bump, 0.4mm pitch wafer-level package (WLP).Design Solution: Can You Hear Me Now? Extend the Life of Your Hearable Device ›ApplicationsAction Cameras, Wearable/Body CamerasFitness Bands and other Bluetooth WearablesHearables: Headsets, Headphones, EarbudsLow-Power Internet of Things (IoT) Gadgets

Documents

Technical documentation and resources

Datasheet

Design Note 57: Can You Hear Me Now? Extend the Life of Your Hearable Device

Design Note

Package Drawing - Wafer-Level Package 5x4 Bump, Full Array

Package Drawing