BQ24074RGTT - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

BQ24074RGTT
Manufacturer

TI
ChipWorker Part#

CW1161700
Category

Battery Management IC
Package

QFN-16
Description

Battery Charge Management USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, 10.5V OVP Battery Charger Li-Ion 1500mA 4.2V 16Pin VQFN EP T/R
Documentation

Datasheet

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BQ24074RGTT Specifications

Attribute	Attribute Value

Part Number	BQ24074RGTT
Manufacturer	TI
ChipWorker Part#	CW1161700
Category	Battery Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	QFN-16
Input Voltage (DC)	10.2 V
Output Voltage	4.2 V
Output Current	1500 mA
Number of Positions	16 Position
Power Dissipation	2300 mW
Output Voltage (Max)	4.4 V
Output Current (Max)	4.5 A
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	2300 mW
Supply Voltage	4.35V ~ 26V
Supply Voltage (Max)	10.2 V
Input Voltage	10.2 V
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Size-Length	3.15 mm
Size-Width	3 mm
Size-Height	0.95 mm
Operating Temperature	-40℃ ~ 125℃ (TJ)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The bq2407x series of devices are integrated Li-Ion linear chargers and system power path management devices targeted at space-limited portable applications. The devices operate from either a USB port or an AC adapter and support charge currents up to 1.5 A. The input voltage range with input overvoltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the bq2407x to meet USB-IF inrush current specifications. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing incorrectly configured USB sources.
The bq2407x features dynamic power path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold; thus, supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination and enables the system to run with a defective or absent battery pack.
Additionally, the regulated system input enables instant system turn-on when plugged in even with a totally discharged battery. The power-path management architecture also lets the battery supplement the system current requirements when the adapter cannot deliver the peak system currents, thus enabling the use of a smaller adapter.
The battery is charged in three phases: conditioning, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The input current limit and charge current are programmable using external resistors.

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