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bq2004H

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 Con...

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SeekIC No. : 004301119 Detail

bq2004H: 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 i...

bq2004H Data Sheet

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Part Number:
bq2004H
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/5/13

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Product Details

Description



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  temperature/
time, peak volume detection,
V, maximum voltage, maximum temperature, and maximum time
Optional top-off charge and pulsed current maintenance charging
Logic-level controlled low-power mode (< 5A standby current)


Pinout

Connection Diagram


Specifications

Symbol Parameter Minimum Maximum Unit Conditions
VCC VCC relative to VSS -0.3 +7.0 V  
VT DC voltage applied on any pin excluding VCC
relative to VSS		 -0.3 +7.0 V VT VCC + 0.3
TOPR Operating temperature -20 +70 °C  
TSTG Storage temperature -55 +125 °C  
TBIAS Temperature under bias - +260 °C  
TSOLDER Soldering temperature -40 +85 °C 10 sec max



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 systemintegrated chargers for batteries of one or more cells.

Switch-activated discharge-beforecharge 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 of bq2004H 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.




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