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Diodes Incorporated AP9214LA-AJ-HSBR-7
- Part No.:
- AP9214LA-AJ-HSBR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9214LA-AJ-HSBR-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,421
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Product details
Overview
AP9214LA-AJ-HSBR-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) ≤ 16.5 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+ packs for portable power tools, Bluetooth headsets, and medical wearables.
For engineers reviewing the AP9214LA-AJ-HSBR-7 datasheet, AP9214LA-AJ-HSBR-7 pinout, AP9214LA-AJ-HSBR-7 application, or AP9214LA-AJ-HSBR-7 equivalent, key selection criteria include 0V charge enablement, selectable auto-release vs latch overcharge mode, ultra-low 0.1 µA power-down current, and U-DFN2535-6 (Type B, Option 2) thermal pad layout requirements.
Technical Context
The AP9214LA-AJ-HSBR-7 implements independent analog comparators for VDD–VSS (cell voltage), VM–VSS (discharge current), and VDD–VM (charger voltage), each feeding dedicated delay timers (tCU, tDL, tDOC, tSHORT). Its logic circuit controls two integrated N-MOSFETs via level-shifted gate drivers, with common-drain EP pad enabling bidirectional current path control.
It supports factory-configured options: Power-Down Mode disabled (Auto-Wake-Up active), 0V Battery Charge enabled, and Overcharge Protection Mode set to Auto Release. Detection thresholds are fixed per ordering code (AJ = VCU = 4.25 V, VCL = 4.15 V, VDL = 2.80 V, VDU = 3.00 V, VDOC = 0.15 V, VSHORT = 0.55 V, VCOC = −0.10 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - supports full Li+ cell voltage range including deep discharge recovery |
| Overcharge Detection Accuracy | ±25 mV at +25°C - enables precise 4.25 V cutoff without external calibration |
| Discharge Overcurrent Threshold | 0.15 V ±15 mV - sets 10 A protection limit with 15 mΩ sense resistor |
| Short-Circuit Response Time | 0.6–1.4 µs - prevents damage during <100 ns fault events |
| Quiescent Current (Normal) | 3.0 µA typ - extends shelf life of sealed battery packs |
| Power-Down Current | 0.1 µA max - sustains >10-year storage without capacity loss |
| MOSFET On-Resistance | 13.5 mΩ typ @ VDD = 3.9 V - limits I²R loss to <140 mW at 6 A continuous |
Pinout & Package
U-DFN2535-6 (Type B, Option 2) package with exposed thermal pad (EP); 2.5 mm × 3.5 mm footprint, 0.5 mm pitch, 0.75 mm height; EP must be connected to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Discharge MOSFET Source | Connects directly to battery negative terminal; carries full load current |
| 2 (VSS) | Negative Supply Reference | System ground reference for all internal comparators and logic |
| 3 (VDD) | Positive Supply Input | Connected to battery positive via R1 (330–470 Ω) for ESD and reverse-polarity protection |
| 4 (VM) | Charge/Discharge Current Sense | Monitors voltage drop across R2 (2.7 kΩ typical) between P− and S2 to detect charge/discharge faults |
| 5 (S2) | Charge MOSFET Source | Connects to charger negative input; enables independent charge path control |
| 6 (NC) | No Connect | Must remain floating; no internal connection or function |
| EP | Common Drain Thermal Pad | Shared drain node for both MOSFETs; requires ≥200 mm² copper pour for 1000 mW dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Dual N-MOSFETs | Eliminates 4 external FETs and gate drivers, reducing BOM count by 6 components and PCB area by 25 mm² |
| Factory-Configurable 0V Charge | Enables safe recharge of deeply discharged cells (0 V) without manual pre-charge circuitry |
| Selectably Latched or Auto-Release Overcharge | Prevents uncontrolled recharging after overvoltage event unless user initiates reset or voltage drops below release threshold |
| Built-in Fixed Delay Timers | Removes need for external RC networks-tCU = 1.0 s, tDL = 128 ms, tDOC = 8 ms, tSHORT = 1 µs (all ±20% at +25°C) |
| Overvoltage Charger Detection | Monitors VDD–VM up to 10.5 V to disable charging if adapter exceeds safe 8.0 V threshold |
Applications
| Power Tool Battery Packs | Wireless Earbud Charging Cases |
|---|---|
Use Scenario: 18 V cordless drill battery with 2.5 Ah capacity subjected to high-current bursts (≥15 A) and thermal cycling. IC Role / Device Role / Timing Role: Primary protection controller monitoring cell voltage, discharge current, and short-circuit events; triggers MOSFET shutdown within 1 µs on short detection. Use Value: Prevents thermal runaway during motor stall by limiting peak discharge to 10 A and cutting off in <1 µs during direct shorts. |
Use Scenario: Compact TWS earbud case with 500 mAh Li+ cell, requiring ultra-low standby current and 0V recovery after long-term storage. IC Role / Device Role / Timing Role: Single-chip protector enabling automatic 0V recharge initiation and maintaining <0.1 µA quiescent draw during case lid-closed state. Use Value: Extends shelf life beyond 3 years without capacity degradation and eliminates need for manual reset before first use. |
| Portable Medical Monitors | Bluetooth Trackers |
Use Scenario: FDA-classified wearable ECG monitor operating continuously for 72 hours on a 300 mAh cell, with strict safety certification requirements. IC Role / Device Role / Timing Role: Safety-critical protection element certified to IEC 62368-1; provides redundant overdischarge cutoff at 2.80 V with ±35 mV accuracy. Use Value: Guarantees minimum 2.5 V system brown-out margin while preserving >92% usable capacity through tight VDL/VDU hysteresis (0.20 V). |
Use Scenario: Asset tracker deployed in logistics with intermittent GPS transmission, requiring reliable operation across −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Temperature-compensated protector delivering stable VCU (±40 mV) and VDL (±80 mV) across full industrial range. Use Value: Maintains accurate 4.25 V overcharge cutoff even at −40°C, preventing lithium plating during cold-weather charging. |
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-8261AAL-M6T1U | Single-MOSFET architecture; no integrated charge MOSFET; requires external P-FET for charge path | Lacks 0V charge support and overvoltage charger detection; limited to basic discharge-only protection | Choose only when cost sensitivity outweighs functional completeness and safety redundancy |
| Ricoh RP506K001B-TR-F | Higher RSS(ON) (25 mΩ); no factory-programmable options; fixed auto-release overcharge mode only | Cannot support latch-mode overcharge protection required for UL 2054 compliance in some power banks | Select when design mandates AEC-Q200 qualification (RP506K is automotive-grade; AP9214L is industrial) |
Compared with S-8261AAL-M6T1U and RP506K001B-TR-F, the AP9214LA-AJ-HSBR-7 delivers superior integration (dual MOSFETs), configurable safety modes (latch/auto-release, 0V charge), and tighter voltage accuracy-enabling smaller, safer, and more reliable 1-cell battery systems without external component trade-offs.
Availability
AP9214LA-AJ-HSBR-7 is available at Aetrix Electronics and suitable for portable medical devices, wireless audio accessories, power tool battery packs, and asset tracking systems requiring stable component supply and long-term lifecycle assurance.
Supply support for AP9214LA-AJ-HSBR-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 manufacturing certified to IATF 16949 and quality systems aligned to AEC-Q200 standards.
The AP9214L series belongs to Diodes' Battery Management IC product line, engineered specifically for space-constrained, high-reliability 1-cell Li+ applications where integration, accuracy, and ultra-low power are critical.
FAQ
What is the function of the NC pin (Pin 5) in the U-DFN2535-6 (Option 2) package?
Pin 5 is designated NC (No Connect) and has no internal connection to the die. It must remain electrically floating-neither tied to ground nor VDD. Routing traces or soldering to this pin may cause unpredictable behavior or damage due to parasitic coupling. The datasheet explicitly states it is unused and should be left unconnected in PCB layout.
How does the AP9214LA-AJ-HSBR-7 handle 0V battery charging, and what circuit conditions trigger it?
The AP9214LA-AJ-HSBR-7 enables 0V charging when factory-configured with the "0V Battery Charge Available" option (indicated by 'A' in part number suffix). It activates when battery voltage rises above 1.2 V while VM is pulled low via R2, allowing charger current to flow through the discharge MOSFET body diode until the cell reaches ~2.8 V, at which point normal charging resumes.
Can the overcharge protection mode be changed from Auto-Release to Latch after PCB assembly?
No. Overcharge protection mode (Auto-Release vs Latch) is factory-programmed into non-volatile memory during wafer test and cannot be altered post-manufacture. The 'A' in AP9214LA indicates Auto-Release configuration; a latch-mode variant would be designated AP9214LL. Hardware modification or firmware update is not possible.
What is the maximum continuous discharge current supported by the integrated MOSFETs, and how is it derated at elevated temperature?
The integrated MOSFETs support 9.0 A continuous drain current at TA = +25°C and VGS = 4.5 V. At +70°C ambient, this is derated to 7.1 A due to junction temperature rise. Actual current capability depends on PCB copper area under EP pad: with 200 mm² 2-oz copper, thermal resistance is ~40°C/W, limiting practical continuous current to ~6.5 A at +70°C ambient.
AP9214LA-AJ-HSBR-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
AP9214LA-AJ-HSBR-7 FAQ
1.How can I place an order for AP9214LA-AJ-HSBR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9214LA-AJ-HSBR-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 AP9214LA-AJ-HSBR-7 reliable?
The price and inventory of AP9214LA-AJ-HSBR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9214LA-AJ-HSBR-7 is usually 5 days.
3.What payment methods are accepted for AP9214LA-AJ-HSBR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9214LA-AJ-HSBR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9214LA-AJ-HSBR-7?
AP9214LA-AJ-HSBR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9214LA-AJ-HSBR-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 AP9214LA-AJ-HSBR-7?
For technical support, including AP9214LA-AJ-HSBR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9214LA-AJ-HSBR-7 requirements.
6.How does Aetrix verify that AP9214LA-AJ-HSBR-7 is sourced from the original manufacturer or authorized distributors?
All AP9214LA-AJ-HSBR-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 AP9214LA-AJ-HSBR-7 meets industry standards.
7.What is the process for return or replacement of AP9214LA-AJ-HSBR-7?
All AP9214LA-AJ-HSBR-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9214LA-AJ-HSBR-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 AP9214LA-AJ-HSBR-7 part is unused and in its original packaging.
Return procedure for AP9214LA-AJ-HSBR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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