Datasheet Texas Instruments BQ7790509PWR
| Manufacturer | Texas Instruments |
| Series | BQ77905 |
| Part Number | BQ7790509PWR |
3- to 5-Series Li-Ion and Li-Phosphate Ultra-Low-Power Stackable Battery Protector 20-TSSOP -40 to 85
Datasheets
bq77905, bq77904 3-5S Ultra Low-Power Voltage, Current, Temperature, and Open Wire Stackable Lithium-ion Battery Protector datasheet
PDF, 1.6 Mb, Revision: G, File published: Sep 13, 2017
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Prices
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Packaging
| Pin | 20 |
| Package Type | PW |
| Industry STD Term | TSSOP |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2000 |
| Carrier | LARGE T&R |
| Device Marking | B7790509 |
| Width (mm) | 4.4 |
| Length (mm) | 6.5 |
| Thickness (mm) | 1 |
| Pitch (mm) | .65 |
| Max Height (mm) | 1.2 |
| Mechanical Data | Download |
Parametrics
| Communication Interface | No Communication |
| Function | Protection |
| Number of Series Cells | 3 Max |
| Package Group | TSSOP |
| Protection Feature | Open wire detection,Over-current in Discharge (OCD),Over-temperature (OT),Over-voltage (OV),Short-circuit Discharge (SCD),Under-temperature (UT),Under-voltage (UV) s |
| Rating | Catalog |
| Special Features | Analog current sense,Low-Side NCH CHG/DSG FET Drive,Programmable EEPROM or EPROM,Stackable (built-in interface),Temperature sense |
| Typical Operating Current(Typ) | 6 uA |
| Vin(Max) | 25 V |
Eco Plan
| RoHS | Compliant |
Design Kits & Evaluation Modules
- Evaluation Modules & Boards: BQ77905EVM-707
bq77905 3- to 5-Series Advanced Stackable Low-Power Battery Protector Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
Application Notes
- Bq77905 Using Multiple FETsPDF, 158 Kb, File published: Jul 15, 2016
The basic implementation of the bq77905 3-5S Low Power Protector for lithium ion batteries uses singlecharge and discharge FETs for current control. This document shows circuit implementation examples ofdriving multiple charge and discharge FETs when using the bq77905. The schematic examples and testresults will help the battery electronics designer when designing a pack with multiple FETs f - BQ77905 Design Considerations in High-Current ApplicationsPDF, 1.8 Mb, File published: Dec 5, 2016
The BQ77905 is a 3-5S low-power protector for lithium-ion batteries that controls the charge anddischarge FETs for current control. In some cases, the charge and discharge current path is required tohandle a continuous high-current that causes heat and component problems. This document provides anexample of the BQ77905 with a 50-A current path for charge and discharge. The design considerati - bq77905 20S Cell Stacking Configuration (Rev. A)PDF, 395 Kb, Revision: A, File published: Jul 28, 2017
The bq77905 is a 3–5S Low Power Protector with easy stacking capabilities for higher than 5S cell batterypacks. This document provides an example for setting up a stacking configuration with the bq77905 andexhibits detailed analysis of the stacking functionality. - bq77905 Separate Current Paths (Rev. A)PDF, 253 Kb, Revision: A, File published: Jul 7, 2016
The basic implementation of the bq77905 3-5S Low Power Protector for lithium-ion batteries uses a singleseries current path for charge and discharge. In some system designs it is desirable to have separatecurrent paths for charge and discharge. This document shows circuit implementation examples ofseparate charge and discharge paths when using the bq77905. The schematic examples and test res - bq77905 Shutdown for Current ReductionPDF, 231 Kb, File published: Jul 21, 2017
The bq77905 3-5S Low-Power Protector for lithium-ion batteries features a low 6-ОјA typical supply currentto extend battery life. Power tools or other applications where the battery is in storage or unused for longperiods may want to prevent battery discharge during idle times. The schematic examples and test resultsin this document help the battery electronics designer when implementing a ci
Model Line
Series: BQ77905 (18)
Manufacturer's Classification
- Semiconductors > Power Management > Battery Management Products > Battery Monitor, Protection & Authentication Solutions
