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Description
The MCP73837 is a highly integrated full-featured linear Li-ion battery charger with both USB and AC-adapter inputs. Automatic Power Source Selection simplifies the design of battery chargers for applications that are powered from either a USB port or an AC adapter. For USB-powered systems, the MCP73837 specifically adheres to the current limits governed by the USB application. Also includes safety features such as cell temperature monitoring, on-chip thermal regulation and safety timers. Available in 10-pin 3mm x 3mm DFN package or 10-pin MSOP package.
Title
Advanced Stand-Alone Linear Li-Ion/Li-Polymer Charge Management Controller
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Advanced Stand-Alone Li-Ion/Li-Polymer Battery Charge Management Controller with Autonomous AC Adapter or
FeaturesComplete Linear Charge Management Controller: - Autonomous Power Source Selection - Integrated Pass Transistors - Integrated Current Sense - Integrated Reverse Discharge Protection
Constant Current (CC)/Constant Voltage (CV) Operation with Thermal RegulationTwo-Charge Status Outputs Power-Good Monitor: MCP73837 Timer Enable: MCP73838 Automatic Recharge:
- Selectable Voltage Threshold Automatic End-of-Charge Control:- Selectable Charge Termination Current Ratio - Selectable Safety Timer Period Preconditioning of Deeply Depleted Cells Can Be Disabled Battery Cell Temperature Monitor UVLO (Undervoltage Lockout) Automatic Power-Down When Input Power Is Removed Low-Dropout (LDO) Linear Regulator Mode Numerous Selectable Options Available for a Variety of Applications: - Refer to Section 1.0 "Electrical Characteris-
tics" for Selectable Options - Refer to the "Product Identification System"The MCP73837 and MCP73838 devices are fully integrated linear Li-Ion/Li-Polymer battery chargers with autonomous power source selection. Along with its small physical size, the low number of external components required makes the MCP73837/8 ideally suitable for portable applications.
The MCP73837/8 automatically selects the USB port or AC adapter as the power source for the system. For the USB port powered systems, the MCP73837/8 specifically adheres to the current limits governed by the USB specification. The host microcontroller can select from two preset maximum charge current rates 100 mA (low-power USB port) 500 mA (high-power USB port). With an AC adapter providing power to the system, an external resistor sets the magnitude of the system or charge current to a maximum of 1A.
The MCP73837/8 employs a constant current/constant voltage charge algorithm with selectable preconditioning and charge termination. The constant voltage regulation is fixed with four available options: 4.50V, to accommodate the new emerging battery charging requirements. The MCP73837/8 limits the charge current, based on die temperature, during high power or high ambient conditions. This thermal regulation optimizes the charge cycle time while maintaining the reliability of the device.
The MCP73837/8 are fully specified over the ambient temperature range to +85°C.Some Part number from the same manufacture
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282 buyer reviews from Canada
Mike
Length of registration:3 years
item as described.product arrived fast. thanks
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12/08/2022
Paul
Length of registration:3 years
Everything is fine! Good luck to all!
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11/18/2022
FRANCOIS
Length of registration:3 years
i bought a few from this seller and they have the best price and quality!
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10/24/2022
Andre
Length of registration:3 years
Good Goods. Fast forward. I all happy
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10/12/2022
alain
Length of registration:14 years
Very disappointed at the delivery speed. I paid good money for shipping but only to wait two weeks for the parcel to arrive.
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09/27/2022
Ramzi Fakhoury
Length of registration:9 years
Very satisfied with
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10/23/2017
Gilles Francoeur
Length of registration:6 years
Comme la photo montré
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Length of registration:6 years
Excellent Thanks
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louis fortin
Length of registration:7 years
super
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12/16/2016
Jim Galway
Length of registration:1 years
Excellent service as always!
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10/12/2016
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Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.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.
MCP73837-FCI/UN
MCP73837-FCI/UN has several brands around the world that may have alternate names for MCP73837-FCI/UN due to regional differences or acquisition. MCP73837-FCI/UN may also be known as the following names:
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