MCP73842-840I/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP73842-840I/UN is a single-channel Li-Ion battery charger IC with charge safety and temperature monitoring in a compact MSOP-10 package. Features adjustable threshold and AEC-Q100 compliant RoHS-compliant lead-free construction. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP73842-840I/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2600(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP73842-840I/UN?
- Single-channel Li-Ion battery management with integrated charge safety, temperature monitoring, and adjustable threshold in MSOP-10
- 4.20 V regulation voltage (-840 suffix) with adjustable termination thresholds for flexible battery pack designs
- RoHS-compliant (JESD-609 e3) MSOP-10 package enabling compact PCB integration in portable and wearable battery-powered devices
What is MCP73842-840I/UN used for?
The MCP73842-840I/UN is used in single-cell Li-Ion battery charger circuits for portable medical devices, handheld instruments, and IoT sensor nodes where charge safety and temperature protection are critical. Its adjustable threshold and integrated battery monitor allow designers to tailor charge termination to specific cell chemistries with a minimal 10-pin MSOP footprint. It also suits power tool and industrial handheld scanner applications requiring reliable 1-channel Li-Ion charging with built-in safety supervision.
What are the specifications of MCP73842-840I/UN?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | BATTERY MONITOR |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 4mA |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Min (Vsup) | 8.7V |
| Supply Voltage-Nom (Vsup) | 9.4V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +8.4V |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP73842-840I/UN datasheet?
MCP73842-840I/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP73842-840I/UN?
Compatible alternatives and drop-in replacements for MCP73842-840I/UN:
Frequently Asked Questions
What does the -840 suffix indicate on the MCP73842-840I/UN and why does it matter for battery selection?
The -840 suffix indicates a fixed 4.20 V charge regulation voltage, which is the standard termination voltage for conventional Li-Ion cells. This preset eliminates an external resistor divider for voltage setting, simplifying the design while ensuring the 1-channel charger safely terminates at the correct 4.20 V endpoint.
Which package does the MCP73842-840I/UN use and how does its size benefit portable device designs?
It uses a 10-pin MSOP package (JESD-30 S-PDSO-G10) measuring approximately 3 mm × 3 mm, which is significantly smaller than standard DIP or SOIC alternatives. This compact footprint is advantageous for wearable and handheld devices with PCB area constraints below 10 cm².
How does the temperature monitoring feature of the MCP73842-840I/UN protect Li-Ion battery packs during charging?
The MCP73842-840I/UN's integrated temperature monitoring suspends or reduces charge current when battery temperature falls outside safe limits, typically below 0°C or above 45°C. This protection prevents thermal runaway and capacity degradation in single-cell Li-Ion packs operating in variable ambient conditions.
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