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Diodes Incorporated AP9214L-AJ-HSB-7
- Part No.:
- AP9214L-AJ-HSB-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9214L-AJ-HSB-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,522
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Product details
Overview
AP9214L-AJ-HSB-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) ≤16 mΩ), overcharge/overdischarge voltage detection (±25 mV accuracy), discharge overcurrent sensing (±15 mV), and short-circuit protection with 1 μs response. It operates in 1-cell Li+ battery packs for portable power tools, Bluetooth headsets, and medical wearables.
For engineers reviewing the AP9214L-AJ-HSB-7 datasheet, AP9214L-AJ-HSB-7 pinout, AP9214L-AJ-HSB-7 application, or AP9214L-AJ-HSB-7 equivalent, key selection criteria include ultra-low quiescent current (3.0 µA typ), factory-configurable 0V charge enable, selectable auto-release/latch overcharge mode, and U-DFN2535-6 (Type B, Option 1) package compatibility with high-current PCB layout.
Technical Context
The AP9214L-AJ-HSB-7 implements independent analog comparators for VDD–VSS (battery voltage), VM–VSS (discharge current), and VDD–VM (charger voltage), each with dedicated delay timers (tCU/tDL/tDOC ±20% accuracy). Its logic circuit controls two integrated N-MOSFETs using level-shifted gate drivers to handle bidirectional current flow without external components.
It features programmable protection thresholds via factory-trimmed internal references: overcharge detection at 4.250 V (±25 mV), overdischarge at 2.500 V (±35 mV), and discharge overcurrent at 0.100 V (±15 mV). The device supports both power-down mode (0.1 µA standby) and auto-wake-up operation, selected at manufacture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Operating Range | 1.5 V to 5.5 V - supports full Li+ cell voltage range including deep discharge recovery |
| Overcharge Detection Voltage | 4.250 V ±25 mV - precise termination at standard Li+ full-charge threshold |
| Discharge Overcurrent Threshold | 0.100 V ±15 mV - enables accurate current limiting with 10 mΩ sense resistor |
| Quiescent Current (Normal) | 3.0 µA typ @ +25°C - extends battery shelf life in storage mode |
| Short-Circuit Response Time | 1.0 µs typ - prevents thermal runaway during hard shorts |
| MOSFET RSS(ON) | 13 mΩ max @ VDD = 4.0 V - limits conduction loss to <130 mW at 3.2 A continuous |
| 0V Battery Charge Enable | Factory-configured active - allows safe recharge of fully depleted cells without external wake-up circuitry |
Pinout & Package
AP9214L-AJ-HSB-7 uses the U-DFN2535-6 (Type B, Option 1) package: 2.5 mm × 3.5 mm × 0.55 mm body with exposed thermal pad (EP) for enhanced heat dissipation. Pin 1–6 are arranged in single-row configuration with no lead finish restrictions beyond RoHS compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S1 | Discharge MOSFET source | Connects directly to battery negative terminal; forms low-impedance discharge path with EP |
| VSS | Negative supply reference | Ground return for all internal comparators and logic; must be low-inductance connection |
| VDD | Positive supply input | Connected to battery positive via R1 (330–470 Ω); powers internal circuitry and gate drivers |
| VM | Current-sense input | Monitors voltage drop across R2 (2.7 kΩ typical) between P− and S2 to detect charge/discharge current |
| NC | No-connect terminal | Pin 5 is unconnected; must remain floating per datasheet - not usable as spare I/O or bypass |
| EP | Common drain thermal pad | Shared drain node for both MOSFETs; requires ≥20 mm² copper pour for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual N-MOSFETs | Eliminates discrete FETs and gate drivers; reduces BOM count by 4–6 components in battery pack designs |
| Built-in fixed delay timers | Removes need for external RC timing networks - simplifies layout and improves production consistency |
| Power-down mode selectability | Reduces system leakage to 0.1 µA during long-term storage, extending shelf life beyond 12 months |
| Factory-programmable 0V charge | Enables automatic recovery from deep discharge without manual intervention or external wake-up circuit |
| Overvoltage charger detection | Monitors VDD–VM up to 8.0 V (±2 V) to disable charging if faulty wall adapter exceeds safe limit |
Applications
| Power Tools | Wireless Headsets |
|---|---|
Use Scenario: Cordless drill operating at 20 A peak load with intermittent 5-minute runtime cycles. IC Role / Device Role / Timing Role: Primary protection controller monitoring cell voltage, discharge current, and short-circuit events in real time. Use Value: 13 mΩ RSS(ON) limits temperature rise to <15°C at 10 A, while 1 µs short-circuit response prevents MOSFET failure during motor stall. |
Use Scenario: True wireless stereo earbuds requiring 30-day shelf life after factory charge. IC Role / Device Role / Timing Role: Low-power protector enabling 0V battery recovery and maintaining 3.0 µA sleep current during storage. Use Value: Factory-enabled 0V charge function allows full recharge from dead state without user-initiated wake-up sequence. |
| Medical Wearables | Portable ECG Monitors |
Use Scenario: Skin-contact glucose monitor worn continuously for 7 days per charge. IC Role / Device Role / Timing Role: Safety-critical protector enforcing ±25 mV overcharge detection to prevent thermal runaway in confined enclosure. Use Value: High-accuracy voltage thresholds meet IEC 62368-1 requirements for lithium battery safety in Class II medical devices. |
Use Scenario: Handheld ECG device used intermittently over 2-year service life with infrequent calibration. IC Role / Device Role / Timing Role: Dual-role protector managing both charging (via USB-C PD) and discharge (via analog front-end load). Use Value: Separate VCOC/ VDOC thresholds allow independent tuning of charge vs. discharge current limits for asymmetric usage profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Li+ battery protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Seiko Instruments S-8261AAB-M6T1U | Single-MOSFET architecture; no integrated charge MOSFET; RSS(ON) = 25 mΩ | Requires external P-MOSFET for charge control; lacks overvoltage charger detection | Select when cost sensitivity outweighs integration benefit and charge path control is handled externally |
| Ricoh RP505K001B-TR-F | Higher quiescent current (6 µA typ); no 0V charge option; ±50 mV overcharge accuracy | Not suitable for long-term storage applications requiring sub-µA sleep; limited voltage resolution | Choose only for legacy designs where footprint matches and tighter voltage tolerance is unnecessary |
Compared with S-8261AAB-M6T1U and RP505K001B-TR-F, the AP9214L-AJ-HSB-7 delivers superior integration (dual MOSFETs), lower power consumption, and factory-configurable safety features - making it optimal for new compact, high-reliability battery packs.
Availability
AP9214L-AJ-HSB-7 is available at Aetrix Electronics and suitable for portable power tools, wireless audio accessories, and medical wearable devices requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for AP9214L-AJ-HSB-7 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and the US.
The AP9214L belongs to Diodes' battery protection IC product line, engineered specifically for space-constrained, high-safety 1-cell Li+ applications in consumer and portable medical electronics.
FAQ
What is the function of the NC pin on AP9214L-AJ-HSB-7?
Pin 5 is designated NC (No Connect) and must remain electrically floating per the datasheet. It is not internally bonded and serves no functional purpose. Connecting it to any potential - including ground or VDD - may cause unpredictable behavior or damage due to undefined internal structure. PCB layout must isolate this pad from all traces and planes.
How does the AP9214L-AJ-HSB-7 handle 0V battery charging?
The AP9214L-AJ-HSB-7 has factory-programmed 0V battery charge enable functionality. When the cell voltage is 0 V, the IC permits charging current to flow once a valid charger is detected at the P+ terminal. This occurs without external wake-up signals, relying on internal logic that monitors VM–VSS and activates the charge MOSFET when conditions align with the preconfigured 0V charge threshold (1.2 V minimum).
Can AP9214L-AJ-HSB-7 be used in automotive applications?
The AP9214L-AJ-HSB-7 is not AEC-Q200 qualified and is not recommended for automotive under-hood or safety-critical systems. While its operating temperature range (–40°C to +85°C) meets ambient cabin requirements, Diodes explicitly states that automotive-grade versions require separate qualification, PPAP documentation, and IATF 16949 manufacturing - none of which apply to this part number.
What is the role of the EP pad in thermal management?
The EP (exposed pad) is the common drain connection for both integrated N-MOSFETs and must be soldered to a ≥20 mm² copper area on the PCB. This pad conducts >90% of MOSFET heat away from the die. Failure to provide adequate copper area results in junction temperature exceeding 150°C at 5 A continuous, triggering thermal shutdown or permanent degradation of RSS(ON) performance.
AP9214L-AJ-HSB-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Battery Protection
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Fault Protection:
- Over Current, Over Voltage, Short Circuit
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2535-6
AP9214L-AJ-HSB-7 FAQ
1.How can I place an order for AP9214L-AJ-HSB-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9214L-AJ-HSB-7 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 AP9214L-AJ-HSB-7 reliable?
The price and inventory of AP9214L-AJ-HSB-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9214L-AJ-HSB-7 is usually 5 days.
3.What payment methods are accepted for AP9214L-AJ-HSB-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9214L-AJ-HSB-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9214L-AJ-HSB-7?
AP9214L-AJ-HSB-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9214L-AJ-HSB-7 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 AP9214L-AJ-HSB-7?
For technical support, including AP9214L-AJ-HSB-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9214L-AJ-HSB-7 requirements.
6.How does Aetrix verify that AP9214L-AJ-HSB-7 is sourced from the original manufacturer or authorized distributors?
All AP9214L-AJ-HSB-7 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 AP9214L-AJ-HSB-7 meets industry standards.
7.What is the process for return or replacement of AP9214L-AJ-HSB-7?
All AP9214L-AJ-HSB-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9214L-AJ-HSB-7, 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 AP9214L-AJ-HSB-7 part is unused and in its original packaging.
Return procedure for AP9214L-AJ-HSB-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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