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Microchip Technology MCP73213T-A6BI/MF
- Part No.:
- MCP73213T-A6BI/MF
- Manufacturer:
- Microchip Technology
- Category:
- Battery Chargers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
MCP73213T-A6BI/MF.pdf
- Description:
- IC BATT CHG LI-ION 2CELL 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,035
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Product details
Overview
MCP73213T-A6BI/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 (13V), and thermal regulation. It delivers constant-current/constant-voltage charging with factory-preset 8.40V regulation, 10% preconditioning, 32-minute precondition timer, 6-hour elapse safety timer, 10% end-of-charge current ratio, and 95% automatic recharge threshold. It targets space-constrained portable devices such as ultra-mobile PCs and handheld radios.
For engineers reviewing the MCP73213T-A6BI/MF datasheet, MCP73213T-A6BI/MF pinout, MCP73213T-A6BI/MF application, or MCP73213T-A6BI/MF equivalent, this page provides verified technical context, exact pin functions, real-world application mappings, and validated alternative options for dual-cell Li-ion charging designs requiring input OVP, thermal regulation, and factory-configured charge profiles.
Technical Context
The MCP73213T-A6BI/MF implements a fully autonomous 3-stage charge algorithm-preconditioning, constant-current fast charge, and constant-voltage regulation-with integrated thermal foldback that dynamically reduces charge current above 110°C to maintain reliability. Its internal P-channel MOSFET (350 mΩ RDS(on)) enables direct battery connection without external power switches.
Charge control is resistor-programmable via PROG (130–1100 mA range), while status indication uses open-drain STAT output with Type 1 (On/Off) factory preset. Input UVLO (4.15V) and OVP (13V) operate independently of battery voltage, enabling robust operation with low-cost wall adapters prone to voltage spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Charge Voltage | 8.40V ±0.6% over –5°C to +55°C - ensures precise dual-cell Li-ion termination without external feedback components |
| Input OVP Threshold | 13.0V ±0.2V - protects against voltage spikes from unregulated AC-DC adapters up to 18V absolute max |
| Fast Charge Current Range | 130–1100 mA set by single PROG resistor - supports scalable design across 500–2000 mAh battery packs |
| Preconditioning | Enabled at 71.5% VREG (6.01V), 10% IREG - safely recovers deeply depleted cells before full-rate charging |
| Thermal Regulation | Active foldback starting at ~110°C - maintains safe die temperature during high-power dissipation in DFN-10 package |
| End-of-Charge Termination | 10% IREG threshold with 6-hour safety timer - prevents overcharge while accommodating aging battery impedance rise |
| Automatic Recharge | Triggers at 95% VREG (7.98V) - restores charge after self-discharge without host intervention |
Pinout & Package
Package: 10-lead DFN (3 mm × 3 mm) with exposed thermal pad (EP) for enhanced heat dissipation in high-current linear charging applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pins 1,2) | Battery management input supply | Accepts 4.2–13V input; includes 18V abs max rating and automatic power-down when VDD falls within +50 mV of VBAT |
| VBAT (Pins 3,4) | Battery charge control output | Drain of internal P-MOSFET; connects directly to 2-cell Li-ion (+) terminal; requires ≥1 μF bypass capacitor |
| NC (Pins 5,6) | No connection | Unbonded pins; must remain floating - no routing or grounding permitted |
| STAT (Pin 7) | Status output | Open-drain indicator with Type 1 (On/Off) preset - sinks up to 35 mA for LED drive or microcontroller interface |
| VSS (Pins 8,9) | Ground reference | Common return for battery negative, input supply, and all internal circuitry - must be low-impedance PCB plane |
| PROG (Pin 10) | Current regulation & enable | Sets fast charge current via resistor to VSS; >200 kΩ forces standby mode - dual-function pin eliminates external enable logic |
| EP (Pin 11) | Exposed thermal pad | Internally connected to VSS; must be soldered to large copper pour with multiple thermal vias for θJA = 62°C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| Integrated input overvoltage protection | 13V threshold with 150 mV hysteresis - eliminates need for external OVP IC or Zener clamp in cost-sensitive designs |
| Factory-preset charge profile | 8.40V regulation, 10% precondition, 32-min timer, 6-hr safety timer, 10% termination, 95% recharge - reduces BOM count and firmware dependency |
| Thermal regulation with foldback | Dynamic current reduction above ~110°C - sustains safe operation under ambient + self-heating without external thermal sensors |
| Reverse discharge protection | Internal blocking prevents battery from powering VDD when input is absent - eliminates need for external reverse-blocking diode |
| Undervoltage lockout | 4.15V start threshold with 100 mV hysteresis - ensures stable startup only when input adapter can sustain required load |
Applications
| Ultra-Mobile PC Charging | Handheld Radio Cradle |
|---|---|
Use Scenario: Integrated charging circuit in fanless ultra-mobile PCs with dual-cell Li-Po battery and low-cost AC adapter. IC Role / Device Role / Timing Role: Primary linear charge controller managing CC/CV profile, thermal foldback, and OVP during plug-in charging. Use Value: Eliminates discrete MOSFET, current-sense amplifier, and OVP IC - reduces board area by >40% vs. discrete solution. |
Use Scenario: Desktop cradle for professional walkie-talkies requiring automatic top-off between field use. IC Role / Device Role / Timing Role: Standalone charger with automatic recharge and STAT-driven LED status for user feedback. Use Value: 95% VREG recharge threshold ensures battery remains at optimal state-of-charge without host MCU involvement. |
| Portable Media Player Dock | Low-Cost Netbook Charger |
Use Scenario: USB-powered dock for media players with dual-cell battery and variable input voltage. IC Role / Device Role / Timing Role: Input-robust charge manager handling adapter ripple and transient spikes up to 18V. Use Value: 13V OVP + 18V abs max rating allows direct use with unregulated wall warts - avoids costly regulated DC-DC stage. |
Use Scenario: Embedded charger in entry-level netbooks where cost and board space are critical constraints. IC Role / Device Role / Timing Role: Dual-cell Li-ion controller with factory-set 8.40V, 10% precondition, and 6-hour safety timer. Use Value: Preprogrammed parameters eliminate calibration effort - accelerates time-to-market for OEM battery subsystems. |
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 8.40V regulation, but Type 1 (On/Off) STAT output vs. MCP73213T-A6BI/MF's Type 1 - same functional behavior | No difference in charge algorithm or timing; both support 10% precondition, 32-min timer, 6-hr safety timer | Select MCP73213-A6S/MF if identical spec compliance is required and packaging logistics favor standard suffix |
| BQ24075RGTR | Single-cell only (4.2V), no factory preset OVP (requires external resistor), no integrated preconditioning or automatic recharge | Lacks dual-cell support, input OVP, and autonomous recharge - requires additional ICs or MCU coordination | Choose only for single-cell systems where BQ24075RGTR's higher 1.5A charge current and I2C interface justify added complexity |
Compared with MCP73213-A6S/MF, the MCP73213T-A6BI/MF offers identical electrical and functional specifications but differs in tape-and-reel packaging and traceability marking; versus BQ24075RGTR, it delivers complete dual-cell autonomy with integrated OVP and recharge - reducing total component count by 3–5 parts in portable designs.
Availability
MCP73213T-A6BI/MF is available at Aetrix Electronics and suitable for ultra-mobile PCs, handheld radios, portable media docks, and low-cost netbook chargers requiring stable component supply, long-term lifecycle support, and guaranteed factory configuration.
Supply support for MCP73213T-A6BI/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, low-power design, and automotive-grade qualification.
The MCP73213 product line delivers highly integrated, factory-configured linear charge controllers for dual-cell Li-ion/Li-polymer batteries - designed specifically for cost-sensitive, space-constrained portable electronics where minimal external components and autonomous operation are essential.
FAQ
What is the factory-preset charge voltage for MCP73213T-A6BI/MF?
The MCP73213T-A6BI/MF is factory configured for 8.40V ±0.6% constant-voltage regulation across –5°C to +55°C, optimized for dual-cell Li-ion/Li-polymer battery termination. This value is laser-trimmed during manufacturing and cannot be adjusted externally - ensuring consistent performance without calibration overhead in production.
Does MCP73213T-A6BI/MF support automatic recharge, and at what threshold?
Yes, MCP73213T-A6BI/MF supports automatic recharge triggered when battery voltage drops to 95% of its regulated voltage (7.98V for 8.40V setting). This feature operates autonomously in charge-complete mode without host MCU intervention, making it ideal for cradle-based or always-connected portable devices.
How does the PROG pin function in MCP73213T-A6BI/MF beyond setting charge current?
In addition to programming fast charge current (130–1100 mA) via resistor to VSS, the PROG pin serves as an enable input: applying >200 kΩ impedance places MCP73213T-A6BI/MF into standby mode with <150 μA quiescent current, eliminating need for external enable circuitry in power-gated systems.
What thermal protection mechanisms are built into MCP73213T-A6BI/MF?
MCP73213T-A6BI/MF features dual thermal safeguards: (1) active thermal regulation that progressively reduces charge current above ~110°C to maintain safe die temperature, and (2) hard thermal shutdown at 150°C with 10°C hysteresis. Both functions operate independently of external components, ensuring reliability in sealed enclosures.
Can MCP73213T-A6BI/MF be used with single-cell Li-ion batteries?
No - MCP73213T-A6BI/MF is specifically designed for dual-cell (8.2–8.8V) Li-ion/Li-polymer configurations. Its internal regulation reference, preconditioning thresholds, and safety timers are calibrated for 2S topology. Using it with single-cell batteries would result in overvoltage and potential cell damage due to mismatched voltage targets.
MCP73213T-A6BI/MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
MCP73213T-A6BI/MF FAQ
1.How can I place an order for MCP73213T-A6BI/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP73213T-A6BI/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 MCP73213T-A6BI/MF reliable?
The price and inventory of MCP73213T-A6BI/MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP73213T-A6BI/MF is usually 5 days.
3.What payment methods are accepted for MCP73213T-A6BI/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP73213T-A6BI/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP73213T-A6BI/MF?
MCP73213T-A6BI/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP73213T-A6BI/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 MCP73213T-A6BI/MF?
For technical support, including MCP73213T-A6BI/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP73213T-A6BI/MF requirements.
6.How does Aetrix verify that MCP73213T-A6BI/MF is sourced from the original manufacturer or authorized distributors?
All MCP73213T-A6BI/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 MCP73213T-A6BI/MF meets industry standards.
7.What is the process for return or replacement of MCP73213T-A6BI/MF?
All MCP73213T-A6BI/MF units undergo pre-shipment inspection (PSI). If there is an issue with MCP73213T-A6BI/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 MCP73213T-A6BI/MF part is unused and in its original packaging.
Return procedure for MCP73213T-A6BI/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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