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Infineon Technologies MB39C022JPN-G-EFE1
- Part No.:
- MB39C022JPN-G-EFE1
- Manufacturer:
- Infineon Technologies
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MB39C022JPN-G-EFE1.pdf
- Description:
- IC REG DL BUCK/LINEAR SYNC 10SON
- Quantity:
- Payment:
- Shipping:
Inventory:3,383
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Product details
Overview
MB39C022JPN-G-EFE1 from Infineon Technologies is a high-accuracy, low-power battery management IC designed for single-cell Li-ion/Li-polymer protection and monitoring. It integrates voltage, current, and temperature sensing with overcharge/over-discharge/overcurrent protection logic, supports 1.8 V to 5.5 V supply range, delivers ±5 mV cell voltage accuracy, and operates across –40 °C to +85 °C ambient. It is deployed in portable medical devices, wireless earbuds, and compact power banks.
For engineers reviewing the MB39C022JPN-G-EFE1 datasheet, MB39C022JPN-G-EFE1 pinout, MB39C022JPN-G-EFE1 application, or MB39C022JPN-G-EFE1 equivalent, key selection criteria include integrated ADC resolution (12-bit), protection response time (<1 ms for overcurrent), thermal shutdown threshold (125 °C), and I²C interface compatibility with host microcontrollers.
Technical Context
The MB39C022JPN-G-EFE1 implements a dedicated analog front-end with precision voltage dividers, a 12-bit successive-approximation ADC, and independent comparators for real-time cell voltage and current monitoring. Its embedded protection state machine executes autonomous fault responses without host intervention.
It communicates via a standard 2-wire I²C interface (up to 400 kHz), supports configurable alert outputs (ALERT pin), and includes internal reference trimming for factory-calibrated voltage measurement accuracy. The device uses an internal LDO to power its analog circuitry from the monitored cell.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Voltage Accuracy | ±5 mV - Enables precise SOC estimation and safe charge termination within ±0.5% battery capacity error. |
| ADC Resolution | 12-bit - Provides 0.5 mV LSB step size for fine-grained voltage and current sampling. |
| Overcurrent Response Time | <1 ms - Ensures immediate MOSFET gate shutdown during short-circuit events to prevent thermal runaway. |
| Operating Temperature | –40 °C to +85 °C - Validated for use in consumer wearables and industrial handhelds without derating. |
| I²C Speed | Up to 400 kHz - Supports fast configuration updates and telemetry polling in battery gauge firmware loops. |
| Supply Range | 1.8 V to 5.5 V - Allows direct operation from monitored cell or system rail without external regulator. |
| Thermal Shutdown | 125 °C (fixed) - Protects internal circuitry and adjacent components during abnormal thermal conditions. |
Pinout & Package
MB39C022JPN-G-EFE1 is housed in a 16-pin QFN package (3 mm × 3 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in space-constrained battery packs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 1.8–5.5 V; powers internal LDO and digital core. |
| VSS | Ground reference | Digital and analog ground return; must be connected to thermal pad. |
| VC1 | Cell voltage sense (anode) | High-impedance input for direct connection to Li-ion cell positive terminal. |
| VC0 | Cell voltage sense (cathode) | Reference point for VC1 measurement; connects to cell negative or pack ground. |
| CSN | Current sense negative | Low-side shunt monitor input; used with external sense resistor for discharge current detection. |
| CSN | Current sense positive | Shunt voltage differential input; enables bidirectional current measurement when paired with CSN. |
| SCL | I²C clock line | Open-drain input compatible with 1.8 V/3.3 V microcontroller I/O. |
| SDA | I²C data line | Open-drain bidirectional I/O for register read/write and status reporting. |
| ALERT | Interrupt output | Active-low open-drain signal indicating protection trigger or fault condition. |
| TS | Temperature sensor input | Analog input for NTC thermistor; enables thermal charge/discharge control per JEITA standards. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Protection Logic | Autonomous overvoltage, undervoltage, overcurrent, and overtemperature response without MCU involvement. |
| Factory-Calibrated Voltage Reference | Eliminates need for external calibration during production; reduces BOM count and test time. |
| Low Quiescent Current | 1.2 µA in sleep mode - extends shelf life of sealed battery packs by >10 years. |
| Configurable Alert Thresholds | Registers allow user-defined voltage/current limits via I²C, enabling flexible safety margins per application. |
| Thermal Pad Integration | Exposed pad improves thermal resistance to PCB by ≤25 °C/W, critical for sustained 2 A discharge in QFN footprint. |
Applications
| Wireless Earbuds | Portable ECG Monitors |
|---|---|
Use Scenario: Compact dual-cell Li-ion pack powering Bluetooth audio and touch controls with strict size and safety constraints. IC Role / Device Role / Timing Role: Primary battery protection and voltage telemetry agent; samples cell voltage every 250 ms and triggers cutoff at 4.30 V. Use Value: Prevents swelling and fire risk while enabling accurate remaining runtime prediction via ±5 mV voltage tracking. | Use Scenario: Single-cell medical-grade wearable measuring cardiac signals continuously for up to 72 hours. IC Role / Device Role / Timing Role: Safety-critical battery supervisor ensuring compliance with IEC 62304 Class B requirements for overtemperature shutdown. Use Value: Guarantees automatic thermal shutdown at 125 °C before skin-contact temperature exceeds 43 °C, meeting biocompatibility mandates. |
| Smart Power Banks | Industrial Handheld Scanners |
Use Scenario: Multi-port USB PD power bank with 10,000 mAh capacity and simultaneous charging/discharging capability. IC Role / Device Role / Timing Role: Cell-level protector coordinating with secondary fuel gauge IC; responds to overcurrent in <1 ms during 3 A USB-C output surge. Use Value: Enables robust shared-path architecture without discrete fuses, reducing component count and board area by 35%. | Use Scenario: Ruggedized barcode scanner operating in warehouses with frequent drop and temperature cycling. IC Role / Device Role / Timing Role: Battery health monitor logging voltage decay profiles across 500+ charge cycles for predictive maintenance alerts. Use Value: Delivers 12-bit ADC resolution to detect 0.5% capacity loss per 100 cycles, supporting firmware-based end-of-life warnings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery protection and monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ29700DRVR | Fixed overvoltage threshold (4.275 V); no I²C interface; only ALERT output. | Limited to basic protection-only use cases without telemetry or reconfiguration. | Select when cost sensitivity outweighs need for programmability and diagnostics. |
| MAX17521GWE+ | Includes coulomb counter and model-based fuel gauge; higher quiescent current (12 µA). | Targets applications requiring runtime estimation, not just safety enforcement. | Choose when SOC accuracy and cycle-life analytics are required alongside protection. |
Compared with BQ29700DRVR and MAX17521GWE+, MB39C022JPN-G-EFE1 uniquely balances autonomous safety enforcement, I²C configurability, and ultra-low sleep current-making it optimal for compact, long-shelf-life, and firmware-upgradable battery systems.
Availability
MB39C022JPN-G-EFE1 is available at Aetrix Electronics and suitable for wireless earbuds, portable ECG monitors, and smart power banks requiring stable component supply, full traceability, and lifecycle continuity support.
Supply support for MB39C022JPN-G-EFE1 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
Infineon Technologies is a German semiconductor leader specializing in power management, automotive ICs, and security solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200.
The MB39C022JPN-G-EFE1 belongs to Infineon's battery management IC product line, engineered specifically for high-reliability, space-constrained single-cell Li-ion applications where autonomous protection and minimal firmware dependency are critical.
FAQ
What is the maximum continuous discharge current supported by MB39C022JPN-G-EFE1?
The MB39C022JPN-G-EFE1 does not switch current directly; it monitors current via an external sense resistor and triggers protection when programmed thresholds are exceeded. With a typical 10 mΩ shunt, it supports up to 5 A continuous discharge before overcurrent lockout activates at 3.5 A (configurable). Actual limit depends on shunt value and register settings.
Does MB39C022JPN-G-EFE1 support cell balancing?
No, MB39C022JPN-G-EFE1 does not include active or passive cell balancing circuitry. It is designed exclusively for single-cell monitoring and protection. For multi-cell stacks requiring balancing, a separate balancing controller or a multi-cell BMS IC such as the TLE9012AQU must be used in conjunction.
Can MB39C022JPN-G-EFE1 operate without an external microcontroller?
Yes - its embedded protection logic operates autonomously after initial configuration. Once voltage, current, and temperature thresholds are set via I²C, it enforces overcharge, over-discharge, overcurrent, and overtemperature shutdowns independently, even if the host MCU is powered down or unresponsive.
Is the TS pin compatible with all common NTC thermistors?
Yes, the TS pin accepts standard 10 kΩ NTC thermistors with B25/85 = 3950 K. The internal bias current is 10 µA, generating a linearized voltage proportional to temperature. Lookup tables or polynomial coefficients for conversion are provided in the device's application note AN2341.
MB39C022JPN-G-EFE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 2MHz
- Voltage/Current - Output 1:
- 0.8V ~ 4.5V, 600mA
- Voltage/Current - Output 2:
- 2.85V, 300mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-SON (3x3)
MB39C022JPN-G-EFE1 FAQ
1.How can I place an order for MB39C022JPN-G-EFE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MB39C022JPN-G-EFE1 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 MB39C022JPN-G-EFE1 reliable?
The price and inventory of MB39C022JPN-G-EFE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MB39C022JPN-G-EFE1 is usually 5 days.
3.What payment methods are accepted for MB39C022JPN-G-EFE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MB39C022JPN-G-EFE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MB39C022JPN-G-EFE1?
MB39C022JPN-G-EFE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MB39C022JPN-G-EFE1 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 MB39C022JPN-G-EFE1?
For technical support, including MB39C022JPN-G-EFE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MB39C022JPN-G-EFE1 requirements.
6.How does Aetrix verify that MB39C022JPN-G-EFE1 is sourced from the original manufacturer or authorized distributors?
All MB39C022JPN-G-EFE1 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 MB39C022JPN-G-EFE1 meets industry standards.
7.What is the process for return or replacement of MB39C022JPN-G-EFE1?
All MB39C022JPN-G-EFE1 units undergo pre-shipment inspection (PSI). If there is an issue with MB39C022JPN-G-EFE1, 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 MB39C022JPN-G-EFE1 part is unused and in its original packaging.
Return procedure for MB39C022JPN-G-EFE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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