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Product Detailed Parameters
- Description:SWITCHING BATTERY CHARGER, 1.8 A
- Series:-
- Mfr:onsemi
- Package:Bulk
- Battery Chemistry:Lithium Ion
- Voltage - Supply (Max):7V
- Operating Temperature:-40°C ~ 85°C (TA)
- Mounting Type:Surface Mount
- Package / Case:25-UFBGA, FCBGA
- Supplier Device Package:25-FlipChip (2.55x2.2)
- Number of Cells:1
- Current - Charging:Constant - Programmable
- Programmable Features:Current, Timer, Voltage
- Fault Protection:Over Voltage
- Charge Current - Max:1.8A
- Battery Pack Voltage:4.5V (Max)
- Interface:I2C, USB
- Grade:-
- Qualification:-
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Overview
The NCP1852FCCT1G is a switching battery charger IC from onsemi, designed for single-cell lithium-ion or lithium-polymer batteries. It integrates a 1.8 A synchronous buck converter with overvoltage protection capabilities. The device operates within an input voltage range suitable for USB and wall adapter sources. It features a compact WLCSP-15 package to minimize board space. The controller supports dynamic current limiting and thermal regulation to ensure safe charging profiles.
Feature Summary
- Integrates a high-efficiency synchronous buck converter for single-cell battery charging applications
- Includes built-in overvoltage protection mechanisms to safeguard the battery and system
- Supports programmable charging currents and voltages via external resistors
Applications
- Portable consumer electronics requiring single-cell Li-ion/Li-Po charging
- USB-powered devices needing integrated power management
- Wearable technology with strict space constraints
Procurement Notes
Verify component authenticity through authorized onsemi distributors. Confirm the specific suffix 'CCT1G' matches your packaging requirements. Check for End-of-Life status as indicated in some distributor listings. Ensure compatibility with your PCB footprint for the WLCSP-15 package. Request fresh date codes if long-term storage is planned.
Selection Notes
Select this component when a compact, integrated solution for single-cell charging is required. It is suitable for designs where board space is limited and efficiency is critical. Consider the 1.8 A output current limit against your battery capacity needs. Verify that the WLCSP-15 package is compatible with your assembly process. Evaluate the need for external components versus integrated features.
Part Context
This part belongs to onsemi's battery management portfolio, focusing on efficient power conversion for portable devices. It complements other PMIC solutions by offering a dedicated charging topology. The series targets mobile and wearable markets where size and performance are paramount. It represents a shift towards highly integrated power stages in small form factors.
Replacement Considerations
Check for direct pin-to-pin replacements within the NCP185x family. Verify equivalent current ratings and package dimensions. Ensure any substitute maintains the same overvoltage protection specifications. Confirm availability of updated revisions if the original is obsolete.
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