My Inquiry
My Account
Microchip Technology MCP73213T-A21I/MF
- Part No.:
- MCP73213T-A21I/MF
- Manufacturer:
- Microchip Technology
- Category:
- Battery Chargers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
MCP73213T-A21I/MF.pdf
- Description:
- IC BATT CHG LI-ION 2CELL 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,180
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MCP73213T-A21I/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 factory-preset 8.40V charge voltage, 10% preconditioning, 32-minute precondition timer, 6-hour elapse safety timer, 10% end-of-charge current ratio, and 95% automatic recharge threshold in a 3×3 mm DFN-10 package - optimized for netbook computers and ultra-mobile PCs.
For engineers reviewing the MCP73213T-A21I/MF datasheet, MCP73213T-A21I/MF pinout, MCP73213T-A21I/MF application, or MCP73213T-A21I/MF equivalent, this page provides verified technical context, exact pin functions, real-world timing and voltage thresholds, thermal regulation behavior, and validated alternative parts for dual-cell Li-ion charging designs requiring compact, cost-sensitive, and thermally robust solutions.
Technical Context
The MCP73213T-A21I/MF implements a full CC/CV charge algorithm with factory-configured thresholds: 8.40V regulated output voltage (±0.6% over –5°C to +55°C), 13V input overvoltage lockout (150 mV hysteresis), and 4.15V undervoltage lockout. Its PROG pin serves dual roles - setting fast charge current (130–1100 mA via external resistor) and enabling/disabling charge via impedance detection (>200 kΩ triggers standby).
Thermal regulation begins before die temperature reaches 150°C shutdown, dynamically limiting IREG to maintain reliability under high ambient or power-dissipation conditions. Battery short protection activates below 3.4V VBAT, sourcing 25 mA to recover deeply discharged cells, while automatic recharge triggers at 95% of VREG after charge completion.
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 overvoltage stress. |
| Input OVP Threshold | 13.0V ±0.2V - protects against wall-adapter spikes and enables use in harsh 12V-input environments. |
| Fast Charge Current Range | 130–1100 mA set by single PROG-to-VSS resistor - supports flexible design across 500–1100 mAh battery capacities. |
| Preconditioning | Enabled at 71.5% of VREG (≈6.01V), 10% IREG - safely recovers deeply depleted 2S batteries before fast charge. |
| End-of-Charge Termination | 10% IREG current ratio with 1 ms filtering - prevents false termination during transient load events. |
| Thermal Shutdown | 150°C die temperature with 10°C hysteresis - secondary safety layer if thermal regulation is overwhelmed. |
| Package | DFN-10 (3 mm × 3 mm) with exposed thermal pad - enables low-profile PCB layout and efficient heat dissipation in space-constrained devices. |
Pinout & Package
Package: 10-lead DFN (3 mm × 3 mm) with exposed thermal pad (EP) - requires PCB copper area and thermal vias for reliable operation at full current.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pins 1, 2) | Battery management input supply | Accepts 4.2–13V input; 18V absolute max; internal UVLO (4.15V) and OVP (13V) protect system integrity. |
| VBAT (Pins 3, 4) | Battery charge control output | Drain of internal P-MOSFET; connects directly to 2S battery positive; bypassed with ≥1 μF for stability. |
| 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 active charge, HIGH-Z at completion, flashing on fault - drives LED or MCU GPIO. |
| 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 | Resistor sets IREG; >200 kΩ impedance forces standby - eliminates need for external enable logic. |
| EP (Pin 11) | Exposed thermal pad | Internally connected to VSS; must be soldered to PCB copper pour with ≥4 thermal vias for thermal regulation compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pass transistor | 350 mΩ RDS(on) at 105°C - eliminates external MOSFET, reduces BOM count, and simplifies layout for 2S applications. |
| Factory preset configuration | 8.40V VREG, 10% precondition, 32-min timer, 6-hr elapse, 10% ITERM, 95% VRTH, Type 1 status - zero configuration required for rapid deployment. |
| Input overvoltage protection | 13V OVP with 150 mV hysteresis - sustains operation through AC-DC adapter transients without external TVS diodes. |
| Reverse discharge protection | Sub-2 μA VBAT-to-VDD leakage at 25°C - prevents battery drain when input is absent, critical for always-on portable devices. |
| Thermal regulation | Continuous current scaling below 150°C - maintains safe junction temperature without abrupt shutdown during sustained high-power charging. |
Applications
| Netbook Computers | Ultra-Mobile PCs |
|---|---|
Use Scenario: Integrated 2-cell Li-Polymer battery charging in fanless, thin-profile computing platforms with limited board space and strict thermal budgets. IC Role / Device Role / Timing Role: Primary linear charge controller managing CC/CV profile, preconditioning, safety timers, and status indication without host MCU intervention. Use Value: Enables compact, low-BOM solution meeting JEITA-compliant charge profiles while sustaining 800 mA fast charge under 55°C ambient. |
Use Scenario: Charging subsystem for handheld Windows/Linux-based UMPCs with hot-swap battery support and USB/AC adapter dual-input capability. IC Role / Device Role / Timing Role: Standalone charge manager providing automatic recharge, battery short recovery, and thermal foldback during extended usage. Use Value: Delivers 95% VREG automatic recharge and 25 mA short-protection current - extends runtime and enables reliable field recovery without service intervention. |
| Digital Camcorders | Portable Media Players |
Use Scenario: High-reliability charging in consumer camcorders subjected to frequent plugging/unplugging and voltage spikes from low-cost wall adapters. IC Role / Device Role / Timing Role: Input-protected linear charger with 13V OVP and 18V absolute max rating - absorbs plug-in transients and prevents latch-up. Use Value: Eliminates need for external OVP circuitry while maintaining ±0.6% VREG accuracy across –40°C to +85°C operating range. |
Use Scenario: Cost-sensitive audio/video playback devices requiring minimal external components and guaranteed end-of-charge detection. IC Role / Device Role / Timing Role: Dual-function STAT pin driving status LED and signaling host MCU - reduces component count and firmware overhead. Use Value: Provides unambiguous visual feedback (LOW = charging, HIGH-Z = complete) and fault indication (flashing) using single open-drain output. |
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 pinout and factory config (8.40V, 10% precharge, 6-hr timer, 10% ITERM); same DFN-10 package and thermal specs. | Same target applications; differs only in part marking - A6S/MF is standard production variant, T-A21I/MF is tape-and-reel qualified for automated assembly. | Select MCP73213T-A21I/MF for SMT production lines requiring IEC 61249-2-21 compliant packaging and traceable reel logistics. |
| BQ24075RGTR | Single-cell focused (4.2V), lacks 2S-specific thresholds; no factory-programmed 8.40V option; requires external resistor network for 2S adaptation. | Suitable for retrofitting 2S systems only with additional voltage-divider feedback and modified termination logic - increases design risk and validation effort. | Choose only if existing BQ24075-based platform requires minimal layout change; not recommended for new 2S designs due to missing native dual-cell regulation. |
Compared with MCP73213-A6S/MF, the MCP73213T-A21I/MF offers identical electrical and thermal performance with enhanced manufacturing traceability, while BQ24075RGTR requires significant external circuitry to emulate 2S-specific regulation and safety thresholds - increasing BOM cost and reducing reliability margin.
Availability
MCP73213T-A21I/MF is available at Aetrix Electronics and suitable for netbook computers, ultra-mobile PCs, and digital camcorders requiring stable component supply, long-term lifecycle support, and IEC-compliant packaging for high-volume SMT assembly.
Supply support for MCP73213T-A21I/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 leading provider of microcontrollers, analog, and interface ICs, with deep expertise in power management and battery safety systems for portable electronics.
The MCP73213 product line delivers highly integrated, factory-configured linear charge controllers specifically designed for dual-cell Li-ion/Li-polymer applications where space, cost, and thermal constraints eliminate switching solutions.
FAQ
What is the factory-configured charge voltage for MCP73213T-A21I/MF?
The MCP73213T-A21I/MF is factory preset to 8.40V regulated output voltage with ±0.6% accuracy over –5°C to +55°C ambient. This value is laser-trimmed during production and cannot be adjusted externally - ensuring consistent dual-cell Li-ion termination without calibration overhead.
Does MCP73213T-A21I/MF support automatic recharge, and at what threshold?
Yes, MCP73213T-A21I/MF supports automatic recharge at 95% of its factory-set VREG (i.e., 7.98V). When battery voltage drops below this threshold in Charge Complete mode, the device restarts the full CC/CV cycle - eliminating manual reinsertion or power cycling in portable equipment.
How does the PROG pin function in MCP73213T-A21I/MF beyond setting charge current?
In MCP73213T-A21I/MF, the PROG pin serves as both current programming input and hardware enable. Applying >200 kΩ impedance (e.g., open circuit or high-value pull-up) places the device in Standby mode with <150 μA quiescent current - enabling simple on/off control without additional logic signals.
What thermal management provisions does MCP73213T-A21I/MF include?
MCP73213T-A21I/MF features two-tier thermal protection: continuous current foldback starting below 150°C junction temperature, plus hard shutdown at 150°C with 10°C hysteresis. The DFN-10 package's exposed pad (EP) must be soldered to a thermal copper plane with ≥4 vias to achieve θJA = 62°C/W and sustain full 1100 mA charge current.
Is MCP73213T-A21I/MF compatible with 2-cell Li-Polymer batteries?
Yes, MCP73213T-A21I/MF is explicitly designed for dual-cell Li-Ion and Li-Polymer batteries. Its 8.40V regulation point, 71.5% precondition threshold (~6.01V), and 95% recharge threshold align with JEITA standards for 2S configurations - ensuring safe, optimal capacity utilization without cell imbalance risk.
MCP73213T-A21I/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:
- 8.8V
- 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-A21I/MF FAQ
1.How can I place an order for MCP73213T-A21I/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP73213T-A21I/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-A21I/MF reliable?
The price and inventory of MCP73213T-A21I/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-A21I/MF is usually 5 days.
3.What payment methods are accepted for MCP73213T-A21I/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP73213T-A21I/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP73213T-A21I/MF?
MCP73213T-A21I/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP73213T-A21I/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-A21I/MF?
For technical support, including MCP73213T-A21I/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP73213T-A21I/MF requirements.
6.How does Aetrix verify that MCP73213T-A21I/MF is sourced from the original manufacturer or authorized distributors?
All MCP73213T-A21I/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-A21I/MF meets industry standards.
7.What is the process for return or replacement of MCP73213T-A21I/MF?
All MCP73213T-A21I/MF units undergo pre-shipment inspection (PSI). If there is an issue with MCP73213T-A21I/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-A21I/MF part is unused and in its original packaging.
Return procedure for MCP73213T-A21I/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCP73213T-A21I/MF Tags
-
BQ21040DBVR
Texas Instruments
-
MCP73812T-420I/OT
Microchip Technology
-
MCP73831T-2ACI/OT
Microchip Technology
-
MCP73832T-2ACI/OT
Microchip Technology
-
MCP73831T-2DCI/OT
Microchip Technology
-
MCP73832T-2DCI/OT
Microchip Technology
-
MCP73831T-2ATI/OT
Microchip Technology
-
MCP73832T-2ATI/OT
Microchip Technology
-
MCP73831T-5ACI/OT
Microchip Technology
-
MCP73832T-2ACI/MC
Microchip Technology
-
MCP73831T-2ACI/MC
Microchip Technology
-
MCP73831T-2ATI/MC
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
