BQ2000SN-B5 Integrated Circuit MGMT Charger SOIC-8 for Analyzer III.

Key Features

• Fast battery charging support
• Designed for type III battery analysis
• Compact and efficient SOIC-8 package
• Intelligent charge management and heat dissipation
• Operating voltage between 2.5 V and 5.5 V

Technical Specifications

• Device type: Charge management integrated circuit
• Supported chemistries: NiCd, NiMH, Li-Ion
• Charge modes: Fast charge, trickle charge, top-off charge
• Charge termination: Peak voltage detection (PVD) for NiCd/NiMH, minimum current for Li-Ion, maximum temperature, and maximum charge time
• Package: SOIC-8

Functional Description

The bq2000 is a programmable, monolithic integrated circuit for fast charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single or multi-chemistry applications.

The device selects the appropriate battery chemistry (nickel or lithium) and proceeds with optimal charging and termination algorithms. This eliminates undesirable undercharge or overcharge conditions.

Depending on the chemistry, the bq2000 provides various charge termination criteria: peak voltage detection (PVD) for NiCd and NiMH, minimum current for Li-Ion, maximum temperature, and maximum charge time.

Applications

• Multi-chemistry chargers
• Nickel chargers
• High-power and multi-cell chargers
• Type III battery analysis systems
• Medical and laboratory equipment
• Measurement and test instruments

Protections and Safety

• Detection of defective or overheated batteries
• Battery insertion and removal detection
• Inhibition of fast charging until temperature and voltage parameters are within safe limits
• Standby mode for minimal power consumption
• Overcharge and deep discharge protection

SOIC-8 Package Details

• SNS: Current sense input
• VSS: System ground
• LED: Charge status output
• BAT: Battery voltage input
• TS: Temperature sense input
• RC: Timer programming input
• VCC: Supply voltage
• MOD: Modulation control output