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BQ25170JDSGR
800mA JEITA-compliant linear battery charger
Brands: Texas Instruments
Mfr.Part #: BQ25170JDSGR
Datasheet: BQ25170JDSGR Datasheet (PDF)
Package/Case: WSON (DSG)-8
RoHS Status:
Stock Condition: 2518 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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Add To BomBQ25170JDSGR General Description
The BQ25170J is an integrated 800-mA linear charger for 1-cell Li-Ion, Li-Polymer, and LiFePO4 batteries targeted at space-limited portable applications. The device has a single power output that charges the battery. The system load can be placed in parallel with the battery, as long as the average system load does not prevent the battery from charging fully within the safety timer duration. When the system load is placed in parallel with the battery, the charge current is shared between the system and the battery.
The device has three phases for charging a Li-Ion battery: precharge to recover a fully discharged battery, fast-charge constant current to supply the bulk of the charge, and voltage regulation to reach full capacity.
In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold, TREG, is exceeded.
The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and automatic charge termination. The charge voltage and fast charge current are programmable through external resistors. The precharge and termination current threshold track the fast charge current setting.
Features
- Input voltage up-to 30-V tolerant
- Automatic Sleep Mode for low power consumption
- 350-nA battery leakage current
- 80-µA input leakage current when charge disabled
- Supports 1-cell Li-Ion, Li-Polymer, and LiFePO4
- External resistor programmable operation
- VSET to set battery regulation voltage:
- Li-Ion: 4.05 V, 4.1 V, 4.2 V, 4.35 V, 4.4 V
- LiFePO4: 3.5 V, 3.6 V, 3.7 V
- ISET to set charge current from 10 mA to 800 mA
- VSET to set battery regulation voltage:
- High accuracy
- ±0.5% charge voltage accuracy
- ±10% charge current accuracy
- Charging features
- Precharge current 20% of ISET
- TS pin for charging operation control over JEITA range
- Termination current 10% of ISET
- NTC thermistor input to monitor battery temperature
- pin for charging function control
- Open-drain output for status and fault indication
- Open-drain output for power good indication
- Integrated fault protection
- 6.6-V IN overvoltage protection
- VSET based OUT overvoltage protection
- 1000-mA overcurrent protection
- 125°C thermal regulation; 150°C thermal shutdown protection
- OUT short-circuit protection
- VSET, ISET pins short/open protection
Application
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Number of series cells | 1 | Charge current (max) (A) | 0.8 |
| Vin (max) (V) | 6.5 | Cell chemistry | Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 |
| Battery charge voltage (min) (V) | 3.5 | Battery charge voltage (max) (V) | 4.4 |
| Absolute max Vin (max) (V) | 30 | Control topology | Linear |
| Control interface | Standalone (RC-Settable) | Features | BAT temp thermistor monitoring (JEITA profile), IC thermal regulation |
| Vin (min) (V) | 3 | Rating | Catalog |
| Operating temperature range (°C) | -40 to 125 |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
 |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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Step1 :Product
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Step2 :Vacuum packaging
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Step3 :Anti-static bag
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Step4 :Individual packaging
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Step5 :Packaging boxes
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Step6 :bar-code shipping tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
We provide high quality products, thoughtful service and after sale guarantee
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We have rich products, can meet your various needs.
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Minimum order quantity starts from 1pcs.
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Lowest international shipping fee starts from $0.00
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365 days quality guarantee for all products
