MCP73832T-2ACI/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
MCP73832T-2ACI/OT is a single-cell Li-Ion and Li-Polymer linear battery charger IC from Microchip, delivering up to 500 mA charge current with a 4.20 V regulated charge voltage. It features thermal shutdown at 150°C, end-of-charge detection, and a charge status output in a compact SOT-23-5 package. Suitable for portable electronics, wearables, and USB-powered charging designs.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP73832T-2ACI/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4018(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-cell Li-Ion/Li-Polymer linear charger IC
- Up to 500 mA programmable charge current via resistor
- 4.20 V ±0.75% regulated charge voltage
- Thermal shutdown protection at 150°C
- End-of-charge detection with status indicator output
- 5-pin SOT-23 package for minimal board footprint
Applications
The MCP73832T-2ACI/OT is widely used in USB-powered portable devices such as Bluetooth headsets, fitness trackers, and handheld instruments that require compact single-cell Li-Ion charging with minimal external components. Its programmable charge current via a single resistor simplifies design for wearables and IoT sensor nodes with constrained PCB space. The integrated thermal regulation and status output also make it suitable for smart charging cradles and wireless earbuds.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 1Week |
| YTEOL | 8 |
| Additional Feature | Thermal Shutdown:150C |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 1.5mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 3.75V |
| Supply Voltage-Nom (Vsup) | 5.2V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.20V |
| ## MCP73832T-2ACI/OT Alternates Showing results | Image |
| Package | SOT23 (5-Pin) |
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 MCP73832T-2ACI/OT:
suggested
suggested
suggested
Frequently Asked Questions
How is the charge current configured on the MCP73832T-2ACI/OT?
The charge current is set by a single external resistor connected to the PROG pin. For example, a 2 kΩ resistor sets approximately 500 mA, while a 10 kΩ resistor yields roughly 100 mA, allowing designers to tune current between 15 mA and 500 mA for different battery capacities.
At what temperature does the MCP73832T-2ACI/OT trigger thermal shutdown?
The device activates its thermal shutdown protection at a junction temperature of 150°C, automatically reducing charge current to prevent overheating. This feature protects both the IC and the battery in designs where ambient temperatures or continuous operation may cause heat buildup in compact enclosures.
Which battery chemistries and cell counts is this charger compatible with?
The MCP73832T-2ACI/OT supports single-cell Li-Ion and Li-Polymer batteries with a regulated termination voltage of 4.20 V ±0.75%. It is not designed for multi-cell series stacks or alternative chemistries such as NiMH, making it best suited for single-cell portable devices up to 500 mA charge current.
How compact is the SOT-23-5 package and what does this mean for PCB design?
The SOT-23-5 package measures approximately 3 mm × 1.75 mm, requiring as few as 3 external passive components to complete a functional charger circuit. This small footprint and low component count make the MCP73832T-2ACI/OT one of the most space-efficient 500 mA Li-Ion charger solutions available for wearable and handheld product designs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6990 | $0.70 |
| 25+ | $0.6880 | $17.20 |
| 50+ | $0.6870 | $34.35 |
| 100+ | $0.6860 | $68.60 |
| 500+ | $0.4085 | $204.25 |
| 1000+ | $0.4018 | $401.80 |
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