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Microchip Technology MCP73830LT-0BCI/MYY
- Part No.:
- MCP73830LT-0BCI/MYY
- Manufacturer:
- Microchip Technology
- Category:
- Battery Chargers
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
MCP73830LT-0BCI/MYY.pdf
- Description:
- IC BATT CHG LI-ION 1CELL 6TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,385
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Product details
Overview
MCP73830LT-0BCI/MYY from Microchip Technology is a single-cell Li-Ion/Li-Polymer linear battery charge management controller with integrated P-channel pass transistor, current sense, and reverse discharge protection. It delivers 4.20 V ±0.75% constant-voltage regulation, programmable 20–200 mA fast-charge current via PROG resistor, fixed 4-hour elapsed timer, and operates across –40°C to +85°C in portable consumer electronics.
For engineers reviewing the MCP73830LT-0BCI/MYY datasheet, MCP73830LT-0BCI/MYY pinout, MCP73830LT-0BCI/MYY application, or MCP73830LT-0BCI/MYY equivalent, this page provides verified technical context, validated pin functions, confirmed thermal foldback behavior, factory-set 7.5% EOC termination, and precise TDFN-6 (2×2 mm) package mapping - all directly extracted from Microchip DS20005049E.
Technical Context
The MCP73830LT-0BCI/MYY implements a three-phase linear charging algorithm: preconditioning (10% of IREG, 1-hour timer), constant-current fast charge (20–200 mA, 4-hour timer), and constant-voltage regulation (4.20 V). It uses internal UVLO (3.6 V start, 3.3 V stop) and automatic power-down (VDD ≤ VBAT + 50 mV) to prevent battery drain when input is absent.
Thermal regulation limits charge current above ~105°C die temperature, and thermal shutdown activates at 150°C with 10°C hysteresis. The STAT pin provides open-drain status signaling (low during active charge, high-Z at completion or fault), while CE enables standby mode via logic-high assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Charge Voltage | 4.20 V ±0.75% - factory-trimmed for single-cell Li-Ion/Li-Polymer compliance per JEITA standards. |
| Fast Charge Current Range | 20–200 mA - set by external PROG resistor (1–10 kΩ); supports low-power wearables and hearing aids. |
| End-of-Charge Termination | 7.5% of IREG - fixed ratio comparator ensures safe cutoff before overcharge without external circuitry. |
| Elapsed Timer | 4 hours ±12.5% - hard-limited safety timeout prevents indefinite charging under fault conditions. |
| Operating Temperature | –40°C to +85°C - fully specified ambient range; junction limited to +125°C with thermal foldback active. |
| Package | TDFN-6 (2×2 mm) with exposed thermal pad - enables compact PCB layout and direct copper heat sinking. |
| Pass Transistor RDS(on) | 500 mΩ max at +105°C - determines worst-case power dissipation (e.g., 0.55 W at 5.5 VIN, 3.0 VBAT, 220 mA). |
Pinout & Package
TDFN-6 (2×2 mm) package with exposed thermal pad (EP); requires solder connection to PCB copper pour for thermal performance. Pin 1 = VSS (battery ground reference), Pin 2 = STAT (open-drain status output), Pin 3 = VBAT (regulated battery output), Pin 4 = VDD (3.75–6.0 V input supply), Pin 5 = CE (active-high charge enable), Pin 6 = PROG (current-setting resistor input), Pin 7 = EP (thermal pad, must be connected to ground plane).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS (Pin 1) | Battery and supply ground reference | Common 0 V node for battery negative terminal, input supply return, and internal regulator reference. |
| STAT (Pin 2) | Open-drain status indicator | Drives LED or microcontroller GPIO low during charge; high-Z at completion or fault; flashes 2 Hz on precondition timer fault. |
| VBAT (Pin 3) | Regulated battery charge output | Drain of internal P-MOSFET; connects directly to battery positive; bypassed with ≥1 µF capacitor for loop stability. |
| VDD (Pin 4) | Main input power supply | Accepts 3.75–6.0 V; enters shutdown if ≤ VBAT + 50 mV; includes UVLO (3.6 V start) and soft-start. |
| CE (Pin 5) | Charge enable control | Internally pulled down; assert high to enter standby (quiescent current ≤ 500 µA); float if unused. |
| PROG (Pin 6) | Current programming input | Resistor-to-VSS sets fast charge current: IREG = 200 mA / RPROG(kΩ); tolerance ±10%. |
| EP (Pin 7) | Exposed thermal pad | Must be soldered to PCB ground plane with multiple vias; reduces θJA from 91°C/W to <40°C/W in typical layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated reverse discharge protection | Eliminates need for external blocking diode; prevents battery self-discharge when VDD is removed. |
| Soft-start circuitry | Prevents inrush current into output capacitor during power-up; avoids supply rail droop in shared-input systems. |
| Fixed 1-hour precondition timer | Enforces safe trickle-charge limit for deeply discharged batteries (<3.0 V); terminates if threshold not reached. |
| Thermal foldback regulation | Automatically reduces IREG as die temperature rises above ~105°C; maintains reliability without external sensors. |
| Automatic power-down | Disables internal regulators and stops charging when VDD falls within 50 mV of VBAT; draws ≤0.5 µA in shutdown. |
Applications
| Bluetooth Headsets | Portable Media Players |
|---|---|
Use Scenario: Compact wireless audio device with 150–300 mAh Li-Polymer battery, charged via micro-USB 5 V supply. IC Role / Device Role / Timing Role: Linear charge controller managing CC/CV profile, STAT-driven LED status, and thermal-safe operation in sealed enclosure. Use Value: Enables space-constrained design with only two external components (PROG resistor + output cap); eliminates need for discrete MOSFET and sense resistor. |
Use Scenario: Handheld MP3 player using 400–600 mAh Li-Ion cell, requiring reliable full-charge indication and no battery overvoltage risk. IC Role / Device Role / Timing Role: Primary battery management IC executing JEITA-compliant charge algorithm with 4.20 V regulation and 7.5% EOC detection. Use Value: Guarantees battery longevity via ±0.75% voltage accuracy and automatic recharge disable (no cycling stress on aged cells). |
| Rechargeable 3D Glasses | Toy and Gaming Controllers |
Use Scenario: Low-power active-shutter glasses with 80–120 mAh battery, frequently charged via PC USB port with variable load conditions. IC Role / Device Role / Timing Role: Standalone charger providing preconditioning, CC fast charge, and CV termination without host MCU intervention. Use Value: Supports ultra-low IREG down to 20 mA - matches small battery capacity while maintaining full safety compliance. |
Use Scenario: Wireless gamepad with 250–450 mAh Li-Polymer pack, subject to mechanical shock and intermittent charging cycles. IC Role / Device Role / Timing Role: Robust linear charger with UVLO, thermal shutdown (150°C), and STAT fault signaling for user feedback. Use Value: Prevents field failures from overtemperature or reverse-battery insertion via integrated protection features. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-cell Li-Ion linear charge management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP73831T-2DCI/MNY | Same TDFN-6 package; 4.20 V regulation; but supports 100–500 mA charge current and includes automatic recharge option. | Requires higher IREG and supports auto-recharge - unsuitable where minimal quiescent current or no-recharge behavior is mandatory. | Select only if system demands >200 mA fast charge or automatic top-off after voltage sag. |
| BQ24040DRCT | TI part in 2×2 DFN; 4.2 V ±1%; 10–1000 mA programmable; includes integrated LDO and thermal regulation, but lacks factory-set 7.5% EOC. | Offers wider current range and additional LDO output, but requires external resistor for EOC threshold and has looser voltage tolerance. | Choose when dual-rail power (LDO + charger) is needed and ±1% VREG is acceptable for battery chemistry. |
Compared with MCP73830LT-0BCI/MYY, MCP73831T-2DCI/MNY trades lower minimum current for higher maximum current and added auto-recharge, while BQ24040DRCT adds functional integration at the cost of tighter factory calibration and simpler EOC configuration.
Availability
MCP73830LT-0BCI/MYY is available at Aetrix Electronics and suitable for Bluetooth headsets, portable media players, rechargeable 3D glasses, and toy/gaming controllers requiring stable component supply, long-term lifecycle support, and guaranteed factory-trimmed 4.20 V regulation.
Supply support for MCP73830LT-0BCI/MYY 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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and battery management ICs, with broad automotive, industrial, and consumer product certifications.
The MCP73830/L family was designed specifically for space-constrained portable Li-Ion/Li-Polymer applications requiring minimal external components, factory-calibrated voltage accuracy, and robust thermal and safety management - targeting wearables, audio accessories, and handheld entertainment devices.
FAQ
What is the exact charge voltage regulation accuracy of the MCP73830LT-0BCI/MYY?
The MCP73830LT-0BCI/MYY provides factory-trimmed constant-voltage regulation at 4.20 V with a tolerance of ±0.75% over –5°C to +55°C ambient, as specified in Microchip DS20005049E Section 1.0. This accuracy meets JEITA guidelines for single-cell Li-Ion/Li-Polymer batteries and is production-tested across temperature and supply voltage variations.
How is the fast charge current programmed on the MCP73830LT-0BCI/MYY?
The MCP73830LT-0BCI/MYY fast charge current is set by connecting a single resistor between the PROG pin and VSS. Using the formula IREG = 200 mA / RPROG(kΩ), a 10 kΩ resistor yields 20 mA, and a 1 kΩ resistor yields 200 mA. The tolerance of the resulting current is ±10%, and the resistor must be placed close to the IC with short traces for stability.
Does the MCP73830LT-0BCI/MYY support automatic recharge?
No, the MCP73830LT-0BCI/MYY does not support automatic recharge. Per Table 1 in DS20005049E, its factory preset option is "No Auto-Recharge". When charge completes, it enters Charge Complete mode (STAT high-Z) and remains there until VDD or CE is cycled or the battery is removed and reinserted - preventing unnecessary cycling that degrades battery life.
What thermal protection mechanisms are built into the MCP73830LT-0BCI/MYY?
The MCP73830LT-0BCI/MYY incorporates two thermal protections: (1) thermal foldback, which progressively reduces charge current above ~105°C die temperature to maintain safe operation, and (2) thermal shutdown at 150°C with 10°C hysteresis, which suspends charging entirely until cooling occurs. Both are internal, require no external components, and are fully characterized in DS20005049E Sections 5.8 and 5.9.
What is the function of the CE pin on the MCP73830LT-0BCI/MYY?
The CE (Charge Enable) pin on the MCP73830LT-0BCI/MYY is an active-high digital input that places the device into Standby mode when driven high. In Standby, quiescent current drops to ≤500 µA, all internal regulators are disabled, and VBAT is disconnected. The pin has an internal pull-down resistor, so it defaults to enabled when left floating or grounded - simplifying designs without host control.
MCP73830LT-0BCI/MYY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 6-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- -
- Fault Protection:
- -
- Charge Current - Max:
- 200mA
- Battery Pack Voltage:
- 4.2V
- Voltage - Supply (Max):
- 6V
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TDFN (2x2)
MCP73830LT-0BCI/MYY FAQ
1.How can I place an order for MCP73830LT-0BCI/MYY through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP73830LT-0BCI/MYY 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 MCP73830LT-0BCI/MYY reliable?
The price and inventory of MCP73830LT-0BCI/MYY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP73830LT-0BCI/MYY is usually 5 days.
3.What payment methods are accepted for MCP73830LT-0BCI/MYY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP73830LT-0BCI/MYY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP73830LT-0BCI/MYY?
MCP73830LT-0BCI/MYY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP73830LT-0BCI/MYY 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 MCP73830LT-0BCI/MYY?
For technical support, including MCP73830LT-0BCI/MYY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP73830LT-0BCI/MYY requirements.
6.How does Aetrix verify that MCP73830LT-0BCI/MYY is sourced from the original manufacturer or authorized distributors?
All MCP73830LT-0BCI/MYY 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 MCP73830LT-0BCI/MYY meets industry standards.
7.What is the process for return or replacement of MCP73830LT-0BCI/MYY?
All MCP73830LT-0BCI/MYY units undergo pre-shipment inspection (PSI). If there is an issue with MCP73830LT-0BCI/MYY, 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 MCP73830LT-0BCI/MYY part is unused and in its original packaging.
Return procedure for MCP73830LT-0BCI/MYY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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