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MCP73827-4.2VUATR
Microchip Technology
IC BATT CONTRL LI-ION 1CEL 8MSOP
2054 Pcs New Original In Stock
Charger IC Lithium Ion 8-MSOP
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Minimum 1
Minimum 1
5.0 / 5.0
- (94 Ratings)
MCP73827-4.2VUATR
Product Overview
1328195
DiGi Electronics Part Number
MCP73827-4.2VUATR-DGManufacturer
Microchip Technology
MCP73827-4.2VUATR
Description
IC BATT CONTRL LI-ION 1CEL 8MSOPInventory
2054 Pcs New Original In Stock
Charger IC Lithium Ion 8-MSOP
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
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365 - Day Quality Guarantee - Every part fully backed.
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MCP73827-4.2VUATR Technical Specifications
Category
Power Management (PMIC), Battery Chargers
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Battery Chemistry
Lithium Ion
Number of Cells
1
Current - Charging
Constant - Programmable
Programmable Features
-
Fault Protection
-
Charge Current - Max
-
Battery Pack Voltage
4.2V
Voltage - Supply (Max)
5.5V
Interface
-
Operating Temperature
-20°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package
8-MSOP
Base Product Number
MCP73827
Datasheet & Documents
Manuals
Development Tools Catalog
HTML Datasheet
MCP73827-4.2VUATR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
MCP73827-4.2VUATR-NDR
MCP738274.2VUATR
Standard Package
2,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Les produits de DiGi Electronics sont accessibles à tous, et j'apprécie vraiment leur engagement écologique. À recommander sans hésitation.
Dec 02, 2025
Le processus de commande et d'expédition chez DiGi Electronics est fluide et efficace, j'ai reçu mes pièces en un temps record, parfait pour mes urgences.
Dec 02, 2025
Reliable and timely, DiGi Electronics ensures a seamless experience with top-tier quality.
Dec 02, 2025
The checkout process is so simplified that I rarely encounter any issues.
Dec 02, 2025
Shipping was quicker than I expected, and the products haven't disappointed in durability.
Dec 02, 2025
The support team’s detailed explanations during troubleshooting helped me understand my system much better.
Dec 02, 2025
Every time I shop, I know I’ll get consistent, high-quality products.
Dec 02, 2025
Their prices are fair, and the staff is always courteous.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the MCP73827-4.2VUATR in a high-temperature industrial application near 85°C?
When designing the MCP73827-4.2VUATR into high-temperature environments near its 85°C maximum operating limit, thermal runaway and inaccurate charge termination are key risks. The device relies on internal temperature sensing and thermal regulation, but poor PCB thermal design can lead to localized hotspots, skewing temperature readings. To mitigate, ensure adequate copper pour for heat dissipation, avoid placing near high-power components, and validate thermal performance under full charge load. Also consider derating charge current above 70°C to maintain long-term reliability and prevent premature end-of-charge triggering due to self-heating.
How does the MCP73827-4.2VUATR compare to the TP4056 in terms of charge regulation accuracy and protection features for 1-cell Li-ion designs?
The MCP73827-4.2VUATR offers tighter charge regulation and improved thermal stability compared to the TP4056, especially important in precise battery management systems. While both handle single-cell Li-ion charging, the MCP73827-4.2VUATR provides more consistent ±1% voltage accuracy under varying load and temperature conditions, whereas the TP4056 typically has ±1.5%. Unlike the TP4056, the MCP73827-4.2VUATR integrates advanced thermal regulation that dynamically reduces charge current to prevent overheating, making it better suited for enclosed or high-ambient-temperature applications. However, the TP4056 is lower cost and simpler for basic consumer devices where precision is less critical.
Can the MCP73827-4.2VUATR be safely used with non-standard lithium-ion chemistries like LiFePO4, or is it strictly limited to 4.2V graphite-anode cells?
The MCP73827-4.2VUATR is strictly designed for standard 4.2V lithium-ion cells with graphite anodes and should not be used with LiFePO4 or other non-4.2V chemistries. Its fixed 4.2V regulation point is incompatible with LiFePO4 cells requiring 3.6V–3.65V cutoff, risking undercharging or unsafe charging modes. Attempting to modify feedback networks to alter setpoints is not feasible due to internal fixed regulation. For LiFePO4 applications, consider alternatives like the MCP73871 or dedicated low-voltage charge controllers to ensure proper charge termination and maximize cycle life.
What are the PCB layout best practices for minimizing noise and thermal issues when integrating the MCP73827-4.2VUATR in a compact wearable design?
For compact wearables using the MCP73827-4.2VUATR, thermal and EMI performance heavily depend on PCB layout. Use a minimum 4-layer stackup with solid ground and power planes to dissipate heat and reduce noise. Place the input capacitor (≥1μF ceramic) and output capacitor as close as possible to the VIN and VBAT pins, with short, wide traces to minimize inductance. Avoid routing sensitive feedback or status lines near switching nodes. Implement thermal vias under the exposed pad (if applicable) to inner ground planes to enhance heat transfer. Poor layout can cause voltage droop, unstable charging, or false fault triggering due to noise coupling.
What are the reliability concerns when replacing a discontinued Li-ion charger with the MCP73827-4.2VUATR in an existing medical device design?
When replacing a legacy charger with the MCP73827-4.2VUATR in a medical device, key reliability concerns include differences in charge algorithm timing, thermal behavior, and qualification for long-life cycles. Verify that the MCP73827-4.2VUATR’s constant-current/constant-voltage (CC/CV) profile matches the battery manufacturer’s specifications, as deviations can reduce cycle life or create safety risks. Unlike some predecessors, the MCP73827-4.2VUATR lacks an I²C interface, removing configurability—confirm fixed thresholds meet application needs. Documentation and traceability for field service and regulatory audit must be updated, and accelerated life testing is recommended to ensure sustained performance under medical use conditions.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MCP73827-4.2VUATR CAD Models
Microchip Technology MCP73827-4.2VUATR PCB symbols & footprints
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