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- BQ24745RHDR - TI
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Manufacturer:TI
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ManyChip's Part#:MC52132267
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Category:Battery Management IC
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Package:VQFN-28
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Datasheet:Datasheet 3D Model
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Description:Battery Charge Management SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator Battery Charger Lead-Acid/Li-Ion/Li-Pol/NiCD/NiMH 128mA to 8064mA 1.024V to 19.2V 28Pin VQFN EP T/R
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Stock Locations:
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Availability:299 pcs In Stock
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MOQ:1 pcs
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Unit Price:$ 4.68
Updated at 17/06/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- DESCRIPTION
- The bq24745 is a high-efficiency, synchronous
- battery charger with an integrated input-current
- comparator, offering low component count for
- space-constrained, multi-chemistry battery-charging
- applications. SMBus input-current, charge-current,
- and charge-voltage DACs allow very high regulation
- accuracies that can be easily programmed by the
- system power-management microcontroller using the
- SMBus. The bq24745 charges two, three, or four
- series Li+ cells, and is available in a 28-pin, 5x5 mm2
- thin QFN package.
- FEATURES
- • NMOS-NMOS Synchronous Buck Converter with 300 kHz Frequency and >95% Efficiency
- • 30-ns Minimum Driver Dead-time and 99.5% Maximum Effective Duty Cycle
- • High-Accuracy Voltage and Current Regulation
- – ±0.5% Charge Voltage Accuracy
- – ±3% Charge Current Accuracy
- – ±3% Adapter Current Accuracy
- – ±2% Input Current Sense Amp Accuracy
- • Integration
- – Input Current Comparator, With Adjustable Threshold and Hysteresis
- – Internal Soft-Start
- • Safety
- – Input Overvoltage Protection (OVP)
- – Dynamic Power Management (DPM)
- • Up to 19.2 V Battery Voltage
- • 6 V–24 V AC/DC-Adapter Operating Range
- • Simplified SMBus Control
- – Charge Voltage DAC (1.024 V–19.2 V)
- – Charge Current DAC (128 mA–8.064 A)
- – Adapter Current Limit DPM DAC (256mA–11.004 A)
- • Status and Monitoring Outputs
- – AC/DC Adapter Present with Adjustable Voltage Threshold
- – Input Current Comparator, With Adjustable Threshold and Hysteresis
- – Current Sense Amplifier for Current Drawn From Input Source
- • Charge Any Battery Chemistry: Li+, NiCd,NiMH, Lead Acid, etc.
- • Cells Pin Supports Two to Four Li-Ion Cells
- • Charge Enable Pin
- • < 10-µBattery Current with Adapter Removed
- APPLICATIONS
- • < 1 mA Input DCIN Current with Adapter Present and Charge Disabled
- • 28-pin, 5x5-mm2 QFN Package
- • Notebook and Ultra-Mobile Computers
- • Portable Data-Capture Terminals
- • Portable Printers
- • Medical Diagnostics Equipment
- • Battery Bay Chargers
- • Battery Back-up Systems
BQ24745RHDR Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 28 Pin |
| Case/Package | VQFN-28 |
| Input Voltage (DC) | 24.0 V |
| Output Voltage | 1.024V ~ 19.2V |
| Switching Frequency | 300 kHz |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | 0 ℃ |
| Supply Voltage | 7 V |
| Supply Voltage (Max) | 24 V |
| Show | |
| Size-Height | 0.95 mm |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| ECCN Code | EAR99 |
Order guide
-
TT in advance (bank transfer), Western Union, Credit card,
PayPal. Customer is responsible for shipping fee, bank
charges, duties and taxes.
-
- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.
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