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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.0150 | $3.02 |
| 4+ | $2.0100 | $8.04 |
| 13+ | $1.5075 | $19.60 |
| 37+ | $1.2600 | $46.62 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”