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Microchip Technology LX2206ILD-TR
- Part No.:
- LX2206ILD-TR
- Manufacturer:
- Microchip Technology
- Category:
- Battery Chargers
- Package:
- 10-TFDFN Exposed Pad
- Datasheet:
-
LX2206ILD-TR.pdf
- Description:
- IC BATT CHG LI-ION 1CELL 10MLPD
- Quantity:
- Payment:
- Shipping:
Inventory:4,694
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Product details
Overview
LX2206ILD-TR from Microsemi is a dual-level programmable lithium-ion battery charger IC for single-cell Li-Ion/Li-Polymer batteries, supporting USB and wall adapter input sources, with 4.2 V ±0.5% float voltage accuracy, 1 A max charge current, and logic-selectable high/low current modes via H/L pin. It integrates thermal regulation, battery temperature monitoring (TMP), and dual status indicators (STAT, DCOK) for portable electronics charging systems.
For engineers reviewing the LX2206ILD-TR datasheet, LX2206ILD-TR pinout, LX2206ILD-TR application, or LX2206ILD-TR equivalent, key selection criteria include its dual-current programming architecture, 1/10 taper termination ratio tied to HCP resistor, open-drain DCOK output, and MLPD-10 exposed-pad thermal package - all critical for compact, thermally constrained USB-powered devices.
Technical Context
The LX2206ILD-TR implements a two-stage CC/CV charging algorithm with conditioning mode activation below 2.7 V battery voltage, followed by constant-current charge (programmable up to 1 A via HCP/LCP resistors) and constant-voltage regulation at 4.2 V ±0.02 V (typ). Its thermal feedback loop dynamically reduces charge current above 140°C junction temperature without halting the cycle.
Control logic includes UVLO (3.8 V rising threshold with 300 mV hysteresis), reverse-current blocking on IN, sleep mode under SD = high (5 µA quiescent), and battery temperature lockout using TMP-sensed thermistor networks calibrated to 0–60°C ranges. The STAT pin provides bidirectional 10 mA LED drive with state-dependent sourcing/sinking behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Charge Voltage Accuracy | ±0.5% (4.2 V nominal); ensures safe, precise full-charge termination within Li-ion voltage limits. |
| Max Charge Current | 1 A (HCP = 12.1 kΩ); supports fast charging in space-constrained portable devices. |
| Termination Current Ratio | 10% of HCP-set current; enables reliable end-of-charge detection without external comparators. |
| Input Voltage Range | 4.35–6 V; compatible with standard 5 V USB and wall adapters while rejecting noisy or underspecified supplies. |
| Operating Temp Range | −40°C to +85°C ambient; validated for industrial-grade portable equipment operation. |
| Quiescent Current (Sleep) | ≤5 µA (SD = high); minimizes battery self-discharge during standby or USB suspend. |
| Thermal Resistance θJA | 33°C/W (MLPD-10 exposed pad); requires minimal PCB copper area for thermal management in high-current apps. |
Pinout & Package
Package: LD Plastic MLPD (Micro Leadframe Package), 10-pin, RoHS-compliant, exposed thermal pad soldered to GND plane. Dimensions: 3.0 × 3.0 × 0.9 mm (D × E × A), 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power Input | Accepts 4.35–6 V USB or adapter supply; includes reverse-current blocking and UVLO. |
| BAT | Battery Connection | Direct connection to single-cell Li-ion anode; monitors voltage for CV regulation and safety thresholds. |
| SD | Shutdown Control | Logic-high input forces sleep mode (≤5 µA IQ); used for USB suspend compliance. |
| H/L | Current Mode Select | Logic level selects between HCP (high) or LCP (low) programmable charge current paths. |
| HCP | High Current Programming | Resistor-to-GND sets high-level CC current (e.g., 19.6 kΩ → 460 mA) and defines 10% taper termination. |
| LCP | Low Current Programming | Resistor-to-GND sets low-level CC current (e.g., 110 kΩ → 92 mA); independent of HCP. |
| TMP | Temperature Sense Input | Analog input for thermistor network; triggers charge inhibition outside 0–60°C range. |
| DCOK | Power Good Indicator | Open-drain output sinks ≤20 mA; asserts low when IN voltage exceeds UVLO and battery charging is enabled. |
| STAT | Charge Status Indicator | Bidirectional 10 mA driver: sinks during charge, sources when full, high-Z when power removed. |
| GND | Ground Reference | System ground plane connection; bottom pad must be soldered to GND for thermal and electrical integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Programmable Charge Currents | H/L logic selects between two independent resistor-programmed CC levels (e.g., 460 mA / 92 mA), enabling USB/adapter current mode switching. |
| CC/CV Charging with Thermal Feedback | Automatically reduces charge current above 140°C junction temperature while maintaining active charge control-no shutdown required. |
| Precision Charge Termination | Taper current fixed at 10% of HCP-set value (e.g., 46 mA for 460 mA mode); eliminates need for external current sensing or comparator. |
| Battery Temperature Monitoring | TMP pin accepts thermistor network to enforce 0–60°C charging window; prevents unsafe charging in cold/hot environments. |
| Integrated Power Status Indicators | STAT (10 mA sink/source) and DCOK (20 mA sink) provide direct LED drive for real-time system-level status reporting. |
Applications
| MP3 Player Charging System | PDA Battery Management |
|---|---|
Use Scenario: Compact MP3 player with dual-power input (USB for sync/charge, wall adapter for rapid top-up). IC Role / Device Role / Timing Role: Primary battery charger IC managing CC/CV profile, USB current compliance, and thermal-safe charging. Use Value: Enables 1 A fast charge from wall adapter and 100/500 mA USB modes without external current-limiting circuitry. | Use Scenario: Handheld PDA requiring reliable single-cell Li-ion charging with battery health monitoring. IC Role / Device Role / Timing Role: Integrated charger with conditioning mode for deeply discharged cells and TMP-based temperature lockout. Use Value: Prevents damage from overvoltage, overheating, or charging outside safe temperature range-extending battery cycle life. |
| Digital Camera Power System | USB Charge Cradle |
Use Scenario: Digital camera with removable battery and cradle-based charging via USB or AC adapter. IC Role / Device Role / Timing Role: Dual-level charger IC providing status feedback (STAT/DCOK) to host MCU for UI indication. Use Value: STAT pin's bidirectional drive simplifies LED interface; DCOK confirms valid input power before initiating charge. | Use Scenario: Docking cradle that charges multiple portable devices simultaneously via shared USB upstream port. IC Role / Device Role / Timing Role: Charger IC with programmable current levels and shutdown control for coordinated multi-device power management. Use Value: SD pin allows host-controlled sleep mode to reduce standby load on shared USB bus during idle periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar lithium-ion battery charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ24075RGTR | Single-current-programmable (no H/L logic select); 1.5 A max; integrated FET; no TMP pin. | Lacks dual-current mode and battery temperature monitoring; suited for simpler, cost-sensitive designs without thermal safety requirements. | Select BQ24075RGTR only if dual-level current control and TMP-based lockout are not required. |
| MAX1555EUT+T | Fixed 100 mA USB / 400 mA adapter current; no resistor programming; no TMP input; smaller SOT23-6 package. | Designed for ultra-compact, low-cost USB-only charging; lacks programmability, thermal feedback, and status indicator drive capability. | Choose MAX1555EUT+T for space-constrained, USB-only applications where full feature set is unnecessary. |
Compared with BQ24075RGTR and MAX1555EUT+T, the LX2206ILD-TR uniquely delivers logic-selectable dual-current modes, precision 10%-ratio taper termination, and integrated TMP-based temperature lockout-all in a thermally optimized MLPD-10 package-making it optimal for robust, field-deployed portable chargers requiring safety and flexibility.
Availability
LX2206ILD-TR is available at Aetrix Electronics and suitable for MP3 players, PDAs, digital cameras, and USB charge cradles requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LX2206ILD-TR 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
Microsemi (now part of Microchip Technology) is a semiconductor company specializing in analog, mixed-signal, and power management ICs for aerospace, defense, industrial, and communications markets.
The LX2206 product line was designed specifically for highly integrated, thermally aware single-cell Li-ion charging in portable consumer electronics-emphasizing USB compliance, dual-power-source flexibility, and built-in safety features.
FAQ
What is the maximum charge current supported by the LX2206ILD-TR?
The LX2206ILD-TR supports a maximum charge current of 1 A, achieved when the H/L pin is high and the HCP programming resistor is set to 12.1 kΩ. This value is confirmed in the Electrical Characteristics table (Page 3) under "Battery Charge Current" with IBAT = 710 mA (typ) at HCP = 12.1 kΩ and H/L = High. The absolute maximum rating for battery charging current is 1.1 A.
How does the LX2206ILD-TR implement charge termination?
The LX2206ILD-TR terminates charging when battery current drops to 10% of the high-level current set by the HCP resistor (e.g., 46 mA for 460 mA mode). This taper current is fixed and internally derived-no external sense resistor or comparator is needed. The STAT pin transitions from sinking to sourcing current upon termination, providing direct visual feedback.
Can the LX2206ILD-TR be used with USB power sources?
Yes, the LX2206ILD-TR is fully USB-compliant and supports both Low Power (100 mA) and High Power (500 mA) peripheral modes. USB current levels are selected via H/L logic input and configured using appropriate HCP/LCP resistor values (e.g., 110 kΩ for 92 mA low mode, 19.6 kΩ for 460 mA high mode), as shown in Figures 1 and 2 of the datasheet.
What is the role of the TMP pin on the LX2206ILD-TR?
The TMP pin on the LX2206ILD-TR monitors battery temperature via an external thermistor network. It enforces charging lockout outside the safe 0°C–60°C range by comparing TMP voltage against VIN-derived thresholds (e.g., 0.72×VIN for cold fault). If unused, TMP must be grounded per Functional Pin Description (Page 2).
Does the LX2206ILD-TR require external MOSFETs for charging?
No, the LX2206ILD-TR integrates the power pass transistor and requires no external MOSFETs. It uses an internal linear regulator architecture with thermal feedback to manage power dissipation. The datasheet shows no external switch components in the Simplified Block Diagram (Page 4) or Application Circuits (Pages 6–7), confirming full integration.
LX2206ILD-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current
- Fault Protection:
- Reverse Current
- Charge Current - Max:
- 1A
- Battery Pack Voltage:
- 4.2V
- Voltage - Supply (Max):
- 6V
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLPD (3x3)
LX2206ILD-TR FAQ
1.How can I place an order for LX2206ILD-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for LX2206ILD-TR 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 LX2206ILD-TR reliable?
The price and inventory of LX2206ILD-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LX2206ILD-TR is usually 5 days.
3.What payment methods are accepted for LX2206ILD-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LX2206ILD-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LX2206ILD-TR?
LX2206ILD-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LX2206ILD-TR 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 LX2206ILD-TR?
For technical support, including LX2206ILD-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LX2206ILD-TR requirements.
6.How does Aetrix verify that LX2206ILD-TR is sourced from the original manufacturer or authorized distributors?
All LX2206ILD-TR 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 LX2206ILD-TR meets industry standards.
7.What is the process for return or replacement of LX2206ILD-TR?
All LX2206ILD-TR units undergo pre-shipment inspection (PSI). If there is an issue with LX2206ILD-TR, 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 LX2206ILD-TR part is unused and in its original packaging.
Return procedure for LX2206ILD-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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