BQ24640RVAT - TI

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

Part No

BQ24640RVAT
Manufacturer

TI
ChipWorker Part#

CW2944940
Category

Battery Management IC
Package

VQFN-16
Description

Battery Charge Management High Efficiency Synchronous Switch-Mode Battery Charge Controller for Super Capacitor Charge Controller 10000mA 16Pin VQFN EP T/R
Documentation

Datasheet

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BQ24640RVAT Specifications

Attribute	Attribute Value

Part Number	BQ24640RVAT
Manufacturer	TI
ChipWorker Part#	CW2944940
Category	Battery Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	VQFN-16
Supply Voltage (DC)	5.00V (min)
Output Current	10 A
Supply Current	1 mA
Number of Positions	16 Position
Switching Frequency	600 kHz
Output Voltage (Max)	8.1 V
Output Current (Max)	10000 mA
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	5V ~ 28V
Supply Voltage (Max)	28 V
Supply Voltage (Min)	5 V
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Size-Length	3.6 mm
Size-Width	3.6 mm
Size-Height	0.95 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The BQ24640RVAT is a highly integrated Switched-mode Super Capacitor Charge Controller. The device offers a constant-frequency synchronous PWM controller with high accuracy charge current, voltage regulation and charge status monitoring. The bq24640 charges a super capacitor in two phases: constant current and constant voltage (CC/CV). The device can charge super capacitors from 0V with current set on the ISET pin. When the super capacitor voltage reaches the programmed target voltage, charge current begins tapering down. The bq24640 has an input CE pin to enable and disable charge and the STAT and PG output pins report charge and adapter status. The TS pin on the bq24640 monitors the temperature of the capacitor and suspends charge during hot and cold conditions.
600kHz NMOS-NMOS synchronous buck controller
Over 90% Efficiency for up to 10A charge current
Accuracy - ±0.5% Charge voltage regulation and ±3% Charge current regulation
High integration internal loop compensation and internal digital soft start
Input overvoltage protection
Capacitor temperature sensing hot and cold charge suspend
Thermal shutdown
30ns Driver dead time and 99.5% Maximum effective duty cycle
Automatic sleep mode for low power consumption

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