Diodes Incorporated AP9214LA-AL-HSBR-7
- Part No.:
- AP9214LA-AL-HSBR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9214LA-AL-HSBR-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:

- Shipping:

Inventory:2,897
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Product details
Overview
AP9214LA-AL-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 1.2 μs response. It operates in 1-cell Li+ packs for portable power tools, Bluetooth headsets, and medical wearables.
For engineers reviewing the AP9214LA-AL-HSBR-7 datasheet, AP9214LA-AL-HSBR-7 pinout, AP9214LA-AL-HSBR-7 application, or AP9214LA-AL-HSBR-7 equivalent, key selection criteria include its U-DFN2535-6 (Type B, Option 2) package, selectable auto-wake-up mode, 0V charge enable, and ±25 mV overcharge voltage accuracy under +25°C conditions.
Technical Context
The AP9214LA-AL-HSBR-7 implements independent voltage monitoring paths for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), with dedicated comparators for overcharge (VCU = 4.25 V typ), overdischarge (VDL = 2.50 V typ), and load short (VSHORT = 0.55 V typ). Detection logic drives internal MOSFET gates via level-shifted drivers.
It features factory-configured auto-wake-up behavior (no external charger required to exit overdischarge), fixed delay timers (tCU = 1.0 s typ, tSHORT = 1.2 μs typ), and integrated 0V battery charge enable-activated when cell voltage reaches ≥1.2 V before permitting charging current flow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overcharge Detection Voltage | 4.25 V ±25 mV at +25°C - enables precise termination at standard Li+ full-charge threshold |
| Discharge Overcurrent Threshold | 0.100 V ±15 mV - sets 10 A cutoff with 10 mΩ sense resistor, supporting high-current portable devices |
| Quiescent Current (Normal) | 3.0 µA typ at +25°C - extends shelf life of sealed battery packs without periodic maintenance |
| MOSFET On-Resistance | 13.5 mΩ max (VDD = 3.9 V) - limits conduction loss to <135 mW at 10 A, reducing thermal stress in compact layouts |
| Short-Circuit Response Time | 1.2 µs typ - prevents catastrophic failure during accidental terminal shorts in handheld equipment |
| Operating Temperature | −40°C to +85°C - supports deployment in consumer electronics exposed to ambient temperature extremes |
| 0V Charge Enable Threshold | 1.2 V - allows safe recovery of deeply discharged cells without requiring external wake-up circuitry |
Pinout & Package
AP9214LA-AL-HSBR-7 uses the U-DFN2535-6 (Type B, Option 2) package: 2.5 mm × 3.5 mm × 0.55 mm body with exposed thermal pad (EP), rated for 1000 mW power dissipation at +25°C on JEDEC High-K board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S1 | Source of discharging MOSFET | Connects directly to battery negative (P−); carries full load current during discharge |
| VSS | Negative power supply reference | System ground return path for all internal comparators and logic; must be low-impedance |
| VDD | Positive power supply input | Connected to battery positive (P+) via R1 (330–470 Ω); powers internal circuitry and MOSFET gates |
| VM | Current-sense input (charger side) | Monitors voltage drop across R2 (2.7 kΩ typical) between P− and charger return; enables charge/discharge direction detection |
| S2 | Source of charging MOSFET | Connects to charger negative input; blocks reverse current flow during charge termination |
| NC | No-connect terminal | Pin 4 in HSBR option; must remain unconnected and floating per design |
| EP | Common drain thermal pad | Shared drain node of both MOSFETs; requires large PCB copper area for thermal management and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual N-MOSFETs | Eliminates discrete FET layout complexity and reduces BOM count by two components in 1-cell protection circuits |
| Auto-wake-up mode | Enables automatic recovery from overdischarge without external charger signal-critical for sealed IoT sensor batteries |
| Factory-set 0V charge enable | Permits recharge of cells depleted to 0 V via self-discharge, avoiding permanent capacity loss in infrequently used devices |
| Fixed detection delays | Removes need for external RC timing networks-simplifies PCB design and improves production consistency |
| Overvoltage charger detection | Monitors VDD–VM up to 10.5 V (max), protecting against faulty >5 V USB chargers or miswired AC adapters |
Applications
| Power Tools | Wireless Headsets |
|---|---|
|
Use Scenario: Cordless drill battery pack subjected to intermittent 15 A surge loads and rapid charge cycles. IC Role / Device Role / Timing Role: Primary protection controller enforcing overcurrent cutoff within 1.2 µs and overcharge release at 4.25 V ±25 mV. Use Value: Prevents MOSFET thermal runaway during stall events while maintaining tight voltage control for cycle-life optimization. |
Use Scenario: Compact Bluetooth earbud case with integrated 1-cell Li+ battery charged via USB-C PD. IC Role / Device Role / Timing Role: Dual-role protector managing both charge termination (VCU = 4.25 V) and discharge cutoff (VDL = 2.50 V) with 0V charge recovery. Use Value: Enables reliable multi-year operation without user-initiated battery replacement or forced reconditioning. |
| Medical Wearables | Smart Home Sensors |
|
Use Scenario: FDA-cleared glucose monitor worn continuously for 7 days per charge, operating at −20°C to +50°C. IC Role / Device Role / Timing Role: Low-quiescent (3.0 µA typ) protector with extended temperature range (−40°C to +85°C) and accurate VDL tracking. Use Value: Guarantees safe shutdown below 2.50 V even at sub-zero temperatures, preventing cell damage during cold-weather use. |
Use Scenario: Battery-powered Zigbee motion sensor deployed in attics with seasonal ambient swings from −30°C to +70°C. IC Role / Device Role / Timing Role: Auto-wake-up protector enabling self-recovery after deep discharge caused by prolonged inactivity. Use Value: Eliminates field service visits for "dead" sensors-device resumes operation autonomously upon battery voltage rise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1-cell Li+ battery protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Seiko Instruments S-8261AAB-M6T1U | Separate protection IC + external MOSFETs; no integrated FETs; 5.0 µA quiescent current | Requires additional layout space and gate-drive design; lacks 0V charge and auto-wake-up | Choose when discrete FET selection (e.g., ultra-low RSS(ON)) is mandatory and board area is unconstrained |
| Ricoh RP502K001B-TR-F | Single-chip solution but only supports latch-mode overcharge; no short-circuit detection; 0.5 µA sleep current | Cannot recover from short events without manual reset; unsuitable for unattended devices | Choose only for cost-sensitive, non-safety-critical applications where short-circuit risk is mitigated externally |
Compared with S-8261AAB-M6T1U and RP502K001B-TR-F, the AP9214LA-AL-HSBR-7 delivers integrated MOSFETs with lower conduction loss, faster short-circuit response, and autonomous recovery-making it optimal for space-constrained, maintenance-free portable systems.
Availability
AP9214LA-AL-HSBR-7 is available at Aetrix Electronics and suitable for power tools, wireless headsets, medical wearables, and smart home sensors requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for AP9214LA-AL-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 product qualification per AEC-Q100/101 standards.
The AP9214L series targets cost-sensitive, high-volume 1-cell Li+ battery protection-designed to replace discrete protection circuits with minimal external components while meeting stringent safety and longevity requirements.
FAQ
What is the function of the NC pin on AP9214LA-AL-HSBR-7?
Pin 4 is designated NC (No Connect) in the HSBR package variant and must remain unconnected and electrically floating. It has no internal connection and serves only as a mechanical placeholder for pin-out compatibility with Option 1 (HSB). Connecting it risks undefined behavior or latch-up.
Does AP9214LA-AL-HSBR-7 support overvoltage protection for the charger input?
Yes-it monitors the voltage between VDD and VM pins and triggers overvoltage charger protection at 8.0 V (±2 V tolerance). When this threshold is exceeded, the charging MOSFET turns off immediately; recovery occurs at 7.3 V with no delay, safeguarding against faulty >5 V USB chargers or adapter mismatches.
How does the auto-wake-up mode differ from power-down mode in AP9214LA-AL-HSBR-7?
This part is configured for auto-wake-up mode (denoted by "A" in the part number), meaning it remains active during overdischarge and recovers automatically when battery voltage rises above VDU (2.50 V typ) for tDLR (1.0 s typ). Power-down mode (non-A version) requires external charger connection to exit overdischarge.
Can AP9214LA-AL-HSBR-7 protect against reverse polarity connection of the charger?
Yes-R2 (2.7 kΩ typical) between P− and VM acts as a current-limiting resistor during reverse connection. Combined with internal clamp structures, it limits reverse current to safe levels (<1 mA), preventing damage to the IC or battery when charger leads are swapped.
AP9214LA-AL-HSBR-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
AP9214LA-AL-HSBR-7 FAQ
1.How can I place an order for AP9214LA-AL-HSBR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9214LA-AL-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-AL-HSBR-7 reliable?
The price and inventory of AP9214LA-AL-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-AL-HSBR-7 is usually 5 days.
3.What payment methods are accepted for AP9214LA-AL-HSBR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9214LA-AL-HSBR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9214LA-AL-HSBR-7?
AP9214LA-AL-HSBR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9214LA-AL-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-AL-HSBR-7?
For technical support, including AP9214LA-AL-HSBR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9214LA-AL-HSBR-7 requirements.
6.How does Aetrix verify that AP9214LA-AL-HSBR-7 is sourced from the original manufacturer or authorized distributors?
All AP9214LA-AL-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-AL-HSBR-7 meets industry standards.
7.What is the process for return or replacement of AP9214LA-AL-HSBR-7?
All AP9214LA-AL-HSBR-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9214LA-AL-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-AL-HSBR-7 part is unused and in its original packaging.
Return procedure for AP9214LA-AL-HSBR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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