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. Once shipped, estimated delivery time depends on the below carriers
you chose: DHL Express, 3-7 business days. DHL eCommerce,12-22 business days. FedEx International Priority, 3-7 business days EMS, 10-15 business days. Registered Air Mail, 15-30 business days.
Shipping rates
After confirming the order, we will evaluate the shipping cost
based on the weight of the goods
Shipping option
We provide DHL, FedEx, EMS, SF Express, and Registered Air Mail
international shipping.
Shipping tracking
We will notify you by email with tracking number once order is
shipped.
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.
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
Ordering
Payment
T/T,PayPal, Credit Card includes Visa, Master, American Express.
Shenzhen Retechip® Electronic Technology Co., Ltd. was established in 2013,
specializing in electronic components distribution business.The
products are widely used in communication equipment, power supply,
medical electronics, automotive electronics, digital electronics,
industrial electronics, display modules, intelligent electronics,
new energy, the Internet of things, 5G productsand other
fields，With high-quality products, reasonable prices, rapid
distributionand timely service, we can provide customers with the
most cost-effective productsand save customers a lot of time.
