BQ24401 Series
Switch-mode NiCd/NiMH battery charger with dT/dt termination
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Switch-mode NiCd/NiMH battery charger with dT/dt termination
| Part | Mounting Type | Operating Temperature [Min] | Operating Temperature [Max] | Voltage - Supply (Max) [Max] | Supplier Device Package | Programmable Features | Battery Chemistry | Package / Case | Package / Case |
|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24401DR | Surface Mount | -20 °C | 70 °C | 6 V | 8-SOIC | Timer | Multi-Chemistry | 3.9 mm | 8-SOIC |
Texas Instruments BQ24401PWG4 | Surface Mount | -20 °C | 70 °C | 6 V | 8-TSSOP | Timer | Multi-Chemistry | 8-TSSOP (0.173", 4.40mm Width) | |
Texas Instruments BQ24401DG4 | Surface Mount | -20 °C | 70 °C | 6 V | 8-SOIC | Timer | Multi-Chemistry | 3.9 mm | 8-SOIC |
Texas Instruments BQ24401PW | Surface Mount | -20 °C | 70 °C | 6 V | 8-TSSOP | Timer | Multi-Chemistry | 8-TSSOP (0.173", 4.40mm Width) | |
Texas Instruments BQ24401PWR | Surface Mount | -20 °C | 70 °C | 6 V | 8-TSSOP | Timer | Multi-Chemistry | 8-TSSOP (0.173", 4.40mm Width) | |
Texas Instruments BQ24401PWRG4 | Surface Mount | -20 °C | 70 °C | 6 V | 8-TSSOP | Timer | Multi-Chemistry | 8-TSSOP (0.173", 4.40mm Width) |
Key Features
• Safe Management of Fast Charge for NiCd and NiMH Battery PacksHigh-Frequency Switching Controller for Efficient and Simple Charger DesignPre-Charge Qualification for Detecting Shorted, Damaged, or Overheated CellsFast-Charge Termination by ΔT/Δt, Maximum Temperature, and Maximum Charge TimeSelectable Top-Off Mode for Achieving Maximum Capacity in NiMH BatteriesProgrammable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge MaintenanceBuilt-in Battery Removal and Insertion DetectionSleep Mode for Low Power ConsumptionAPPLICATIONSNickel ChargerHigh-Power, Multi-Cell ChargerSafe Management of Fast Charge for NiCd and NiMH Battery PacksHigh-Frequency Switching Controller for Efficient and Simple Charger DesignPre-Charge Qualification for Detecting Shorted, Damaged, or Overheated CellsFast-Charge Termination by ΔT/Δt, Maximum Temperature, and Maximum Charge TimeSelectable Top-Off Mode for Achieving Maximum Capacity in NiMH BatteriesProgrammable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge MaintenanceBuilt-in Battery Removal and Insertion DetectionSleep Mode for Low Power ConsumptionAPPLICATIONSNickel ChargerHigh-Power, Multi-Cell Charger
Description
AI
The bq24401 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd) and nickel metal-hydride (NiMH) in single or multi-cell applications.
The bq24401 provides these charge termination criteria:
For safety, the bq24401 inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq24401 uses trickle-charge to condition the battery. For NiMH batteries, the bq24401 provides an optional top-off charge to maximize the battery capacity.
The integrated high-speed comparator allows the bq24401 to be the basis for a complete, high-efficiency battery charger circuit for nickel-based chemistries.
The bq24401 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd) and nickel metal-hydride (NiMH) in single or multi-cell applications.
The bq24401 provides these charge termination criteria:
For safety, the bq24401 inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq24401 uses trickle-charge to condition the battery. For NiMH batteries, the bq24401 provides an optional top-off charge to maximize the battery capacity.
The integrated high-speed comparator allows the bq24401 to be the basis for a complete, high-efficiency battery charger circuit for nickel-based chemistries.