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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Battery Chargers

Microchip Technology MCP73213-A6AI/MF

Name: MCP73213-A6AI/MF
Brand: Microchip Technology
SKU: MCP73213-A6AI/MF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MCP73213-A6AI/MF

Manufacturer:: Microchip Technology

Category:: Battery Chargers

Package:: 10-VFDFN Exposed Pad

Datasheet:: MCP73213-A6AI/MF.pdf

Description:: IC BATT CHG LI-ION 2CELL 10DFN

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Product details

Overview

MCP73213-A6AI/MF from Microchip Technology is a dual-cell Li-Ion/Li-Polymer linear battery charge management controller with integrated pass transistor, current sense, input overvoltage protection (13 V), and thermal regulation. It delivers factory-preset 8.40 V charge voltage, supports 130–1100 mA resistor-programmable fast charge current, and operates across –40°C to +85°C for portable media players and ultra-mobile PCs.

For engineers reviewing the MCP73213-A6AI/MF datasheet, MCP73213-A6AI/MF pinout, MCP73213-A6AI/MF application, or MCP73213-A6AI/MF equivalent, this page provides verified technical context, exact pin functions, real-world use cases, and validated alternative options for dual-cell Li-ion charging designs requiring compact footprint, input OVP, and automatic recharge control.

Technical Context

The MCP73213-A6AI/MF implements a three-phase linear charge algorithm-preconditioning (10% of I_REG, 32 min timer), constant-current fast charge (programmed via R_PROG), and constant-voltage regulation (8.40 V ±0.6% over –5°C to +55°C). It integrates input overvoltage lockout at 13 V and undervoltage lockout at 4.15 V, with automatic power-down when V_DD falls within +50 mV of V_BAT.

Thermal regulation dynamically reduces charge current above ~110°C junction temperature, while thermal shutdown suspends charging at 150°C with 10°C hysteresis. The STAT pin provides open-drain status indication (low during active charge, high-Z at completion), and PROG serves dual role as current-set input and enable pin (200 kΩ impedance triggers standby).

Key Specifications

Parameter	Value and Actual Design Meaning
Charge Voltage	8.40 V ±0.6% over –5°C to +55°C - ensures precise dual-cell Li-ion termination without external feedback.
Input OVP Threshold	13.0 V ±0.2 V - protects against wall-adapter spikes and enables use in cost-sensitive, unregulated supply environments.
Fast Charge Current Range	130–1100 mA via single R_PROG (1.0–10 kΩ) - simplifies design scalability across battery capacities from 300 mAh to 1100 mAh.
Preconditioning	Enabled at 71.5% V_REG (6.0 V), 10% I_REG, 32-min timer - safely recovers deeply depleted 2-cell packs without user intervention.
End-of-Charge Termination	10% I_REG minimum current ratio - balances full capacity utilization and cycle life for consumer-grade Li-ion cells.
Automatic Recharge	Enabled at 95% V_REG (8.0 V) - maintains battery readiness in always-on portable devices without host MCU involvement.
Operating Temperature	–40°C to +85°C ambient - supports deployment in handhelds, netbooks, and walkie-talkies exposed to variable environmental conditions.

Pinout & Package

Package: 10-lead DFN (3 mm × 3 mm) with exposed thermal pad (EP) for enhanced heat dissipation in space-constrained PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
VDD (Pins 1, 2)	Battery management input supply	Accepts 4.2–13 V input; 18 V absolute max; internal UVLO (4.15 V) and OVP (13 V) protect system integrity.
VBAT (Pins 3, 4)	Battery charge control output	Drives positive terminal of 2-cell Li-ion pack; integrates P-MOSFET with 350 mΩ R_DS(on) at 105°C.
NC (Pins 5, 6)	No connection	Unbonded pins; must remain floating - no routing or soldering required.
STAT (Pin 7)	Status output	Open-drain indicator: low during charge, high-Z at completion; supports LED or MCU polling without pull-up dependency.
VSS (Pins 8, 9)	Battery reference ground	Common return for VDD, VBAT, and PROG; must connect directly to battery negative terminal for accurate sensing.
PROG (Pin 10)	Current regulation & enable	Sets fast charge current via R_PROG; >200 kΩ impedance forces standby mode - eliminates need for external enable logic.
EP (Pin 11)	Exposed thermal pad	Internally connected to VSS; requires PCB copper pour and ≥4 thermal vias for reliable thermal performance at full load.

Key Features

Feature	Design Value
Integrated pass transistor	Eliminates external MOSFET and gate driver, reducing BOM count and layout area in DFN-10 footprint.
Factory-preset 8.40 V regulation	Guarantees accurate dual-cell Li-ion termination without trimming resistors or calibration firmware.
Resistor-programmable charge current	Enables single-part-number flexibility across battery capacities using standard E24/E96 resistors (e.g., 2.32 kΩ = 500 mA).
Automatic recharge at 95% V_REG	Maintains battery at optimal state-of-charge for always-ready operation in portable media players and netbooks.
Input overvoltage protection (13 V)	Allows direct use with low-cost AC-DC adapters subject to plug/unplug transients - no external TVS required.

Applications

Portable Media Players	Ultra-Mobile PCs
Use Scenario: Charging 2-cell Li-Poly battery in handheld video playback device with limited board space and no host MCU. IC Role / Device Role / Timing Role: Standalone linear charger managing preconditioning, CC/CV profile, and end-of-charge detection autonomously. Use Value: Factory-preset 8.40 V and 10% I_REG preconditioning ensure safe, full-capacity recovery of depleted batteries without firmware overhead.	Use Scenario: Integrated battery charging in fanless netbook with thermally constrained chassis and unregulated wall-wart input. IC Role / Device Role / Timing Role: Dual-role controller providing input OVP (13 V), thermal regulation, and automatic recharge to extend runtime between charges. Use Value: 350 mΩ R_DS(on) and DFN-10 package minimize self-heating, while EP pad enables passive cooling on 2-layer PCBs.
Digital Camcorders	Walkie-Talkies
Use Scenario: Fast-charging 2-cell Li-ion pack in professional camcorder requiring rapid turnaround between recording sessions. IC Role / Device Role / Timing Role: Linear charge manager delivering up to 1100 mA fast charge with 4-hour safety timer and 10% termination threshold. Use Value: Resistor-programmable current allows tuning to battery manufacturer's 1C recommendation (e.g., 800 mA for 800 mAh cell), maximizing cycle life.	Use Scenario: Battery maintenance in ruggedized two-way radio operating across wide ambient temperatures (–20°C to +60°C). IC Role / Device Role / Timing Role: Robust charge controller with –40°C to +85°C rating, UVLO/OVP, and battery short protection (1.7 V threshold). Use Value: Preconditioning at 71.5% V_REG (6.0 V) and thermal shutdown at 150°C prevent damage during field use with intermittent charging.

Portable Media Players

Ultra-Mobile PCs

Use Scenario: Charging 2-cell Li-Poly battery in handheld video playback device with limited board space and no host MCU.

IC Role / Device Role / Timing Role: Standalone linear charger managing preconditioning, CC/CV profile, and end-of-charge detection autonomously.

Use Value: Factory-preset 8.40 V and 10% I_REG preconditioning ensure safe, full-capacity recovery of depleted batteries without firmware overhead.

Use Scenario: Integrated battery charging in fanless netbook with thermally constrained chassis and unregulated wall-wart input.

IC Role / Device Role / Timing Role: Dual-role controller providing input OVP (13 V), thermal regulation, and automatic recharge to extend runtime between charges.

Use Value: 350 mΩ R_DS(on) and DFN-10 package minimize self-heating, while EP pad enables passive cooling on 2-layer PCBs.

Digital Camcorders

Walkie-Talkies

Use Scenario: Fast-charging 2-cell Li-ion pack in professional camcorder requiring rapid turnaround between recording sessions.

IC Role / Device Role / Timing Role: Linear charge manager delivering up to 1100 mA fast charge with 4-hour safety timer and 10% termination threshold.

Use Value: Resistor-programmable current allows tuning to battery manufacturer's 1C recommendation (e.g., 800 mA for 800 mAh cell), maximizing cycle life.

Use Scenario: Battery maintenance in ruggedized two-way radio operating across wide ambient temperatures (–20°C to +60°C).

IC Role / Device Role / Timing Role: Robust charge controller with –40°C to +85°C rating, UVLO/OVP, and battery short protection (1.7 V threshold).

Use Value: Preconditioning at 71.5% V_REG (6.0 V) and thermal shutdown at 150°C prevent damage during field use with intermittent charging.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-cell Li-ion linear charge management applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP73213-A6S/MF	Identical 8.40 V regulation, same 13 V OVP and 10% preconditioning, but uses Type 1 (On/Off) STAT output instead of Type 2 (Flashing) status.	Preferred where simple LED on/off indication suffices; lacks flashing fault signaling for thermal/timer faults.	Select MCP73213-A6AI/MF if visual fault diagnostics (e.g., flashing STAT for thermal fault) are required in end-product UI.
BQ24075RGTR	Single-cell only (4.2 V), no factory preset OVP (requires external resistor divider), no integrated pass transistor (external FET needed), wider 2.5–6.5 V input range.	Suitable for compact single-cell applications but cannot replace MCP73213-A6AI/MF in dual-cell systems without redesign.	Choose only for new single-cell designs; not a functional substitute for dual-cell 8.4 V charging with integrated OVP and pass element.

Compared with MCP73213-A6S/MF, the MCP73213-A6AI/MF adds Type 2 flashing status for fault visibility; compared with BQ24075RGTR, it delivers true dual-cell support, integrated OVP, and complete standalone operation - eliminating external components and enabling drop-in replacement in existing 2-cell layouts.

Availability

MCP73213-A6AI/MF is available at Aetrix Electronics and suitable for portable media players, ultra-mobile PCs, and digital camcorders requiring stable component supply, long-term lifecycle support, and guaranteed factory programming.

Supply support for MCP73213-A6AI/MF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology is a global semiconductor company specializing in microcontrollers, analog devices, and battery management ICs, with emphasis on reliability, longevity, and embedded system integration.

The MCP73213 product line delivers highly integrated, factory-configured linear chargers for dual-cell Li-ion/Li-polymer batteries - designed specifically for cost-sensitive, space-limited portable electronics needing zero-host-control charging.

FAQ

What is the factory-preset charge voltage for MCP73213-A6AI/MF?

The MCP73213-A6AI/MF is factory configured for 8.40 V constant-voltage regulation, with ±0.6% accuracy over –5°C to +55°C. This value is laser-trimmed during manufacturing and cannot be adjusted externally - ensuring consistent dual-cell Li-ion termination without calibration.

How does the MCP73213-A6AI/MF handle input overvoltage events?

The MCP73213-A6AI/MF incorporates an internal 13 V overvoltage protection circuit that disables charging when V_DD exceeds 13.0 V ±0.2 V. It remains latched in shutdown until V_DD drops below the hysteresis threshold (12.85 V), protecting downstream circuitry from adapter spikes without external TVS diodes.

What is the function of the PROG pin on MCP73213-A6AI/MF beyond setting charge current?

In addition to programming fast charge current via R_PROG, the PROG pin on MCP73213-A6AI/MF serves as an enable input: applying >200 kΩ impedance places the device in standby mode with <150 μA quiescent current, while reconnecting the resistor resumes normal operation - enabling simple hardware-based power sequencing.

Does MCP73213-A6AI/MF support automatic recharge, and at what threshold?

Yes, MCP73213-A6AI/MF supports automatic recharge triggered when battery voltage falls to 95% of its regulated value (7.98 V for 8.40 V setting). This feature maintains battery readiness in always-on devices like netbooks and camcorders without requiring host MCU intervention or external comparators.

What thermal protection mechanisms are built into MCP73213-A6AI/MF?

The MCP73213-A6AI/MF features dual thermal safeguards: (1) dynamic thermal regulation that progressively reduces charge current above ~110°C junction temperature, and (2) hard thermal shutdown at 150°C ±5°C with 10°C hysteresis. Both functions operate independently of external circuitry and ensure safe operation under sustained high-power conditions.

MCP73213-A6AI/MF Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 10-VFDFN Exposed Pad

Packaging:: Tube

Product Status:: Active

Battery Chemistry:: Lithium Ion/Polymer

Number of Cells:: 2

Current - Charging:: Constant - Programmable

Programmable Features:: -

Fault Protection:: Over Voltage

Charge Current - Max:: 1.1A

Battery Pack Voltage:: 8.4V

Voltage - Supply (Max):: 13V

Interface:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-DFN (3x3)

MCP73213-A6AI/MF FAQ

1.How can I place an order for MCP73213-A6AI/MF through Aetrix?

Please submit a Request for Quotation (RFQ) for MCP73213-A6AI/MF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MCP73213-A6AI/MF reliable?

The price and inventory of MCP73213-A6AI/MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP73213-A6AI/MF is usually 5 days.

3.What payment methods are accepted for MCP73213-A6AI/MF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP73213-A6AI/MF transactions.

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4.How is shipping managed for MCP73213-A6AI/MF?

MCP73213-A6AI/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MCP73213-A6AI/MF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MCP73213-A6AI/MF?

For technical support, including MCP73213-A6AI/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP73213-A6AI/MF requirements.

6.How does Aetrix verify that MCP73213-A6AI/MF is sourced from the original manufacturer or authorized distributors?

All MCP73213-A6AI/MF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCP73213-A6AI/MF meets industry standards.

7.What is the process for return or replacement of MCP73213-A6AI/MF?

All MCP73213-A6AI/MF units undergo pre-shipment inspection (PSI). If there is an issue with MCP73213-A6AI/MF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MCP73213-A6AI/MF part is unused and in its original packaging.

Return procedure for MCP73213-A6AI/MF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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