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See Technical Specifications

BQ2004HSNTR

NiCd/NiMH buck charger w/negative dV, PVD, dT/dt termination and timing setup3

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

BQ2004HSNTR
Datasheet:

BQ2004HSNTR Datasheet (PDF)
Battery Chemistry:

Multi-Chemistry
Current - Charging:

Constant, Pulsed
Programmable Features:

Voltage
Voltage - Supply (Max):

5.5V
EDA/CAD Models:

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BQ2004HSNTR General 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:

Rate of temperature rise (t)
Peak voltage detection (PVD)
Negative delta voltage (-V)
Maximum voltage
Maximum temperature
Maximum time

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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Key Features

Fast charge and conditioning of nickel cadmium or nickel-metal hydride batteries
Hysteretic PWM switch-mode current regulation or gated control of an external regulator
Easily integrated into systems or used as a stand-alone charger
Pre-charge qualification of temperature and voltage
Configurable, direct LED outputs display battery and charge status
Fast-charge termination by V, maximum voltage, maximum temperature, and maximum time
Optional top-off charge and pulsed current maintenance charging
Logic-level controlled low-power mode (< 5uA standby current)

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Battery Chargers	Series	-
Battery Chemistry	Multi-Chemistry	Number of Cells	-
Current - Charging	Constant, Pulsed	Programmable Features	Voltage
Fault Protection	-	Charge Current - Max	-
Battery Pack Voltage	-	Voltage - Supply (Max)	5.5V
Interface	-	Operating Temperature	-20°C ~ 70°C (TA)
Mounting Type	Surface Mount	Base Product Number	BQ2004

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Ratings and Reviews

M**a 12/15/2022

Perfect.Congratulations.

S**l 08/23/2022

It came in 10 days, everything works well

D**d 02/12/2022

Ordered several times from this site, item exactly as described, and shipped VERY fast! I recommend! Fast delivery and high quality product! Thank you very much.