Datasheet Texas Instruments BQ24745
| Manufacturer | Texas Instruments |
| Series | BQ24745 |
SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator
Datasheets
SMBus-Controlled Multi-chemistry Battery Charger With Input Current datasheet
PDF, 1.8 Mb, Revision: D, File published: Oct 5, 2011
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Prices
Status
| BQ24745RHDR | BQ24745RHDRG4 | BQ24745RHDT | BQ24745RHDTG4 | |
|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | Yes | No | No |
Packaging
| BQ24745RHDR | BQ24745RHDRG4 | BQ24745RHDT | BQ24745RHDTG4 | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 28 | 28 | 28 | 28 |
| Package Type | RHD | RHD | RHD | RHD |
| Industry STD Term | VQFN | VQFN | VQFN | VQFN |
| JEDEC Code | S-PQFP-N | S-PQFP-N | S-PQFP-N | S-PQFP-N |
| Package QTY | 3000 | 3000 | 250 | 250 |
| Carrier | LARGE T&R | LARGE T&R | SMALL T&R | SMALL T&R |
| Device Marking | 24745 | 24745 | 24745 | 24745 |
| Width (mm) | 5 | 5 | 5 | 5 |
| Length (mm) | 5 | 5 | 5 | 5 |
| Thickness (mm) | .9 | .9 | .9 | .9 |
| Pitch (mm) | .5 | .5 | .5 | .5 |
| Max Height (mm) | 1 | 1 | 1 | 1 |
| Mechanical Data | Download | Download | Download | Download |
Parametrics
| Parameters / Models | BQ24745RHDR | BQ24745RHDRG4 | BQ24745RHDT | BQ24745RHDTG4 |
|---|---|---|---|---|
| Absolute Vin (safety rating)(Max)(, V | 30 | 30 | 30 | 30 |
| Battery Charge Voltage(Max), V | 24 | 24 | 24 | 24 |
| Cell Chemistry | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer |
| Charge Current(Max), A | 10 | 10 | 10 | 10 |
| Control Interface | SMBus | SMBus | SMBus | SMBus |
| Control Topology | Switch-Mode Buck | Switch-Mode Buck | Switch-Mode Buck | Switch-Mode Buck |
| Number of Series Cells | 2,3,4 | 2,3,4 | 2,3,4 | 2,3,4 |
| Operating Vin(Max), V | 24 | 24 | 24 | 24 |
| Operating Vin(Min), V | 7 | 7 | 7 | 7 |
| Package Group | VQFN | VQFN | VQFN | VQFN |
| Package Size: mm2:W x L, PKG | 28VQFN: 25 mm2: 5 x 5(VQFN) | 28VQFN: 25 mm2: 5 x 5(VQFN) | 28VQFN: 25 mm2: 5 x 5(VQFN) | 28VQFN: 25 mm2: 5 x 5(VQFN) |
| Special Features | Power Path | Power Path | Power Path | Power Path |
| USB Feature | N/A | N/A | N/A | N/A |
Eco Plan
| BQ24745RHDR | BQ24745RHDRG4 | BQ24745RHDT | BQ24745RHDTG4 | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Application Notes
- How to Use bq24745 for Charging Single-Cell Li-Ion BatteryPDF, 195 Kb, File published: Nov 25, 2008
The bq24745 Evaluation Module (EVM) is designed for 2- to 4-cell notebook battery-charger applications. However, the bq24745 also supports single-cell, battery-charger applications. This application report describes how to change bq24745EVM components for meeting single-cell applications. One example for 5-V input, single-cell application was tested based on a modified bq24745EVM. - Li-ion battery-charger solutions for JEITA compliancePDF, 506 Kb, File published: Jan 29, 2010
- How to Review a Multicell Switching Charger SchematicPDF, 196 Kb, File published: Sep 21, 2011
This application report provides a checklist for reviewing a switching charger schematic and explains each item in the list. - Q1 2010 Issue Analog Applications JournalPDF, 2.6 Mb, File published: Jan 29, 2010
- Operating Fuel Gauge bq20z7x/8x/9x and SMBus-Like bq24745/47/65 ChargersPDF, 132 Kb, File published: Oct 6, 2009
The smart charger bq24747/765 is a high-efficiency, synchronous battery charger with an integrated input current comparator. This charger provides low component count for space constrained, multichemistry battery charging applications. SMBus input current, charge current, and input current digital-to-analog converters allow for very high regulation accuracies that the system power management micr
Model Line
Series: BQ24745 (4)
Manufacturer's Classification
- Semiconductors> Power Management> Battery Management Products> Battery Charger IC
