Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ24205DGNR | BQ24205 Series |
|---|---|---|
| Battery Chemistry | Lithium Ion/Polymer | Lithium Ion/Polymer |
| Battery Pack Voltage | 4.1 V | 4.1 V |
| Charge Current - Max [Max] | 500 mA | 500 mA |
| Current - Charging | Constant | Constant |
| Fault Protection | Over Temperature, Short Circuit | Over Temperature, Short Circuit |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells | 1 | 1 |
| Operating Temperature [Max] | 125 ¯C | 125 ¯C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Package / Case | Exposed Pad, 8-MSOP, 8-TSSOP | Exposed Pad, 8-MSOP, 8-TSSOP |
| Package / Case [x] | 0.118 in | 0.118 in |
| Package / Case [x] | 3 mm | 3 mm |
| Programmable Features | Current, Timer | Current, Timer |
| Supplier Device Package | 8-HVSSOP | 8-HVSSOP |
| Voltage - Supply (Max) [Max] | 13.5 V | 13.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
BQ24205 Series
500-mA, 4.1-V Li-ion charger for current-Limited App. in MSOP-8
| Part | Battery Chemistry | Supplier Device Package | Fault Protection | Mounting Type | Voltage - Supply (Max) [Max] | Charge Current - Max [Max] | Number of Cells | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case [x] | Package / Case [x] | Package / Case | Current - Charging | Battery Pack Voltage | Programmable Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24205DGN | Lithium Ion/Polymer | 8-HVSSOP | Over Temperature, Short Circuit | Surface Mount | 13.5 V | 500 mA | 1 | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | Constant | 4.1 V | Current, Timer |
Texas Instruments BQ24205DGNR | Lithium Ion/Polymer | 8-HVSSOP | Over Temperature, Short Circuit | Surface Mount | 13.5 V | 500 mA | 1 | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | Constant | 4.1 V | Current, Timer |
Description
General part information
BQ24205 Series
The bq2420x series are simple Li-Ion linear charge management devices targeted at low-cost and space limited charger applications. The bq2420x series offer integrated powerFET, high-accuracy voltage regulation, temperature monitoring, charge status, and charge termination, in a single monolithic device.
The bq2420x is designed to work with a current-limited wall-mount transformer and therefore does not provide any current regulation. However, these devices offer a fixed internal current limit to prevent damage to the internal powerFET. A time-limited pre-conditioning phase is provided to condition deeply discharged cells. Once the battery reaches the charge voltage, the high accuracy voltage regulation loop takes over and completes the charge cycle. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination.
Other standard features include an automatic sleep mode activated when VCCfalls below the battery voltage falls below the VRCHthreshold.