Shenzhen Retechip Electronics Co., Ltd
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BQ25895 I2C Controlled Single Cell 5-A Fast Charger with MaxChargeTM for High Input Voltage and
Adjustable Voltage 3.1-A Boost Operation
Applications
• Power bank, mobile Wi-Fi hotspot
• Wireless Bluetooth speaker
• Portable internet devices
Specifications
| Product Attribute | Attribute Value |
|---|---|
| Product Category: | Battery Management |
| Charge Management | |
| Lithium-ion, Lithium Polymer | |
| 4.5 V to 5.5 V | |
| 5 A | |
| 3.9 V to 14 V | |
| WQFN-24 | |
| SMD/SMT | |
| BQ25895 | |
| Reel | |
| Development Kit: | BQ25895EVM-664 |
| Maximum Operating Temperature: | + 85 C |
| Minimum Operating Temperature: | - 40 C |
| Moisture Sensitive: | Yes |
| Product Type: | Battery Management |
Description
The BQ25895 is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Lipolymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase
Features
• High efficiency 5-A, 1.5-MHz switch mode buck charge
– 93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge current
– Optimize for high voltage input (9 V to 12 V)
– Low Power PFM Mode for light load operations
• Boost Mode operation with adjustable output from 4.5 V to 5.5 V
– Selectable 500-KHz to 1.5-MHz boost converter with up to 3.1
-A output – 93% Boost efficiency at 5 V at 1 A output
• Integrated control to switch between charge and Boost Mode
• Single input to support USB input and adjustable high voltage adapters
– Support 3.9-V to 14-V input voltage range
– Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
– Maximum power tracking by input voltage limit up-to 14V for wide range of adapters
– Auto detect USB SDP, CDP, DCP, and Nonstandard Adapters
• Input current optimizer (ICO) to maximize input power without overloading adapters
• Resistance compensation (IRCOMP) from charger output to cell terminal
• Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
• Integrated ADC for system monitor (voltage, temperature, charge current)
• Narrow VDC (NVDC) power path management
– Instant-on works with no battery or deeply discharged battery
– Ideal diode operation in Battery Supplement Mode
• BATFET Control to support Ship Mode, wake up, and full system reset
• Flexible autonomous and I2C Mode for optimal system performance
• High integration includes all MOSFETs, current sensing and loop compensation
• 12-µA Low battery leakage current to support Ship Mode
• High accuracy
Trading Guides
| Shipping | Delivery period |
For in-stock parts, orders are estimated to ship out in 3 days.
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| Shipping rates |
After confirming the order, we will evaluate the shipping cost based on the weight of the goods
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| Shipping option |
We provide DHL, FedEx, EMS, SF Express, and Registered Air Mail international shipping.
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| Shipping tracking |
We will notify you by email with tracking number once order is shipped.
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| Returning warranty | Returning |
Returns are normally accepted when completed within 30 days from date of shipment.Parts should be unused and in original packaging.Customer has to take charge for the shipping.
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| Warranty |
All Retechip purchases come with a 30-day money-back return policy, This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation
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| Ordering |
Payment
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T/T,PayPal, Credit Card includes Visa, Master, American Express.
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