MIKROE-4768, Click Board, Charger 16 Click11/16/2021
New Content (1)
Features and Benefits
- Fast Charging of Li-Ion, NiMH and NiCd Batteries
- Simple Charge Current Programming Requires Only One Low Cost, 1/32W Resistor
- High Efficiency Charger with Up to 1.5A Charge Current
- Precision 0.6% Internal Voltage Reference
- Preset Battery Voltages: 4.1V, 4.2V, 8.2V, 8.4V
- 500kHz or 200kHz Switching Frequency Minimizes Charger Size
- Low Reverse Battery Drain Current: 5µA
- Flag Indicates Li-Ion Charge Completion
- 5% Typical Charge Current Accuracy
- Low Shutdown Current
- LT1571-1: 200kHz, Adjustable Voltage
- LT1571-2: 200kHz, Fixed 8.2V or 8.4V
- LT1571-5: 500kHz, Fixed 4.1V or 4.2V
The LT1571 PWM battery charger is a simple, efficient solution to fast-charge rechargeable batteries including lithium-ion (Li-Ion), nickel-metal-hydride (NiMH) and nickel-cadmium (NiCd) using constant-current and/or constant-voltage control. The internal switch is capable of delivering 1.5A DC current (2A peak current). The onboard current sense resistor (0.1Ω) allows simple charge current programming to within 5% accuracy using a low cost external resistor. The constant-voltage output can be selected for 4.1V or 4.2V per cell with 0.6% accuracy.
LT1571 can charge batteries ranging from 1V to 20V. A saturating switch operating at 200kHz (LT1571-1, LT1571-2) or 500kHz (LT1571-5) gives high efficiency and small charger size. A logic output (flag) indicates Li-Ion near full charge when the charge current drops to 20% of the programmed value. The LT1571-1 and LT1571-2 are in a 28-pin fused lead narrow SSOP power package. The LT1571-5 is in a 16-pin fused lead narrow SSOP power package.
- Cellular Phones, PDAs, Notebook Computers, Portable Instruments
- Cradle Chargers for Li-Ion, NiCd, NiMH and Lead-Acid Rechargeable Batteries
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (3)
DC281A: Demo Board for the LT1571 Constant-Current/Constant-Voltage Battery Charger with Preset Voltage and Termination Flag.
DC288A-B: Demo Board for the LT1571 Constant-Current/Constant-Voltage Battery Charger with Preset Voltage and Termination Flag.
Documentation & Resources
R324 Reliability Data3/26/2018
Industrial Battery Chargers Overview10/17/2023
LT1571 Companion Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|LT1571EGN-1#PBF||Material Declaration||Reliability Data||28-Lead SSOP (Narrow 0.15 Inch)|
|LT1571EGN-1#TRPBF||Material Declaration||Reliability Data||28-Lead SSOP (Narrow 0.15 Inch)|
|LT1571EGN-2#PBF||Material Declaration||Reliability Data||28-Lead SSOP (Narrow 0.15 Inch)|
|LT1571EGN-2#TRPBF||Material Declaration||Reliability Data||28-Lead SSOP (Narrow 0.15 Inch)|
|LT1571EGN-5#PBF||Material Declaration||Reliability Data||16-Lead SSOP (Narrow 0.15 Inch)|
|LT1571EGN-5#TRPBF||Material Declaration||Reliability Data||16-Lead SSOP (Narrow 0.15 Inch)|
|Wafer Fabrication Data||R324 Reliability Data|
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Sample & Buy
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Please see the latest communication from our CCO regarding lead times.
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.