BQ2004ESN - TI

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

Part No

BQ2004ESN
Manufacturer

TI
ChipWorker Part#

CW29079206
Category

Battery Management IC
Package

SOIC-16
Description

Battery Charge Management Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination Fast Charge Management NiCD/NiMH 2000mA 16Pin SOIC Tube
Documentation

Datasheet

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BQ2004ESN Specifications

Attribute	Attribute Value

Part Number	BQ2004ESN
Manufacturer	TI
ChipWorker Part#	CW29079206
Category	Battery Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Supply Voltage (DC)	5.50V (max)
Input Voltage (DC)	5.50 V
Switching Frequency	300 kHz
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	-20 ℃
Supply Voltage	4.5 V
Input Voltage	5.5 V
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Size-Length	9.9 mm
Size-Width	3.91 mm
Size-Height	1.58 mm
Operating Temperature	-20℃ ~ 70℃ (TA)
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

The bq2004E and bq2004H Fast Charge ICs provide comprehensive fast charge control functions together with high-speed switching power control circuitry on a monolithic CMOS device.
Integration of closed-loop current control circuitry allows the bq2004 to be the basis of a cost-effective solution for stand-alone and system-integrated chargers for batteries of one or more cells.
Switch-activated discharge-before-charge allows bq2004E/H-based chargers to support battery conditioning and capacity determination.
High-efficiency power conversion is accomplished using the bq2004E/H as a hysteretic PWM controller for switch-mode regulation of the charging current. The bq2004E/H may alternatively be used to gate an externally regulated charging current.
Fast charge may begin on application of the charging supply, replacement of the battery, or switch depression. For safety, fast charge is inhibited unless/until the battery temperature and voltage are within configured limits.
Temperature, voltage, and time are monitored throughout fast charge. Fast charge is terminated by any of the following:
After fast charge, optional top-off and pulsed current maintenance phases with appropriate display mode selections are available.
The bq2004H differs from the bq2004E only in that fast charge, hold-off, and top-off time units have been scaled up by a factor of two, and the bq2004H provides different display selections.

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