BQ24172RGYT - TI

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

Part No

BQ24172RGYT
Manufacturer

TI
ChipWorker Part#

CW2858132
Category

Battery Management IC
Package

VQFN-24
Description

TEXAS INSTRUMENTS BQ24172RGYT Battery Charger for 3 Cells of Li-Ion, Li-Pol battery, 17V input, 4.2V / 4A charge, VQFN-24
Documentation

Datasheet

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BQ24172RGYT Specifications

Attribute	Attribute Value

Part Number	BQ24172RGYT
Manufacturer	TI
ChipWorker Part#	CW2858132
Category	Battery Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	24 Pin
Case/Package	VQFN-24
Input Voltage (DC)	17.0 V
Output Voltage	13.5 V
Output Current	4 A
Number of Positions	24 Position
Switching Frequency	1.60 MHz
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	4.5V ~ 17V
Supply Voltage (Max)	17 V
Input Voltage	17 V
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Operating Temperature	-40℃ ~ 85℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The BQ24172RGYT is a synchronous switch-mode Li-ion and Li-polymer stand-alone Battery Charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high-accuracy regulation of input current, charge current and voltage. The bq2417x closely monitors the battery pack temperature to allow charge only in a preset temperature window. It can be adjustable for up to three series Li+ cells. The device charges the battery in three phases: preconditioning, constant current and constant voltage. Charge is terminated when the current reaches 10% of the fast charge rate. A programmable charge timer offers a safety backup. It automatically restarts the charge cycle if the battery voltage falls below an internal threshold and enters a low-quiescent current sleep mode when the input voltage falls below the battery voltage.
Adjustable charge voltage
Automatic power path selector between adapter and battery
Dynamic power management
Integrated 20V switching MOSFETs
Integrated bootstrap diode
Internal digital soft start
Thermal shutdown
Adjustable input overvoltage protection
Cycle-by-cycle current limit
Green product and no Sb/Br
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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