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Diodes Incorporated AP9214LA-AN-HSB-7
- Part No.:
- AP9214LA-AN-HSB-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9214LA-AN-HSB-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,656
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Product details
Overview
AP9214LA-AN-HSB-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) = 13 mΩ typ @ VDD = 4.0V) and precision voltage/current detection circuitry for 1-cell rechargeable battery packs. It provides overcharge (3.5–4.5V, ±25mV), overdischarge (2.0–3.4V, ±35mV), discharge/charge overcurrent (±15mV), short-circuit (±100mV), and overvoltage charger (8.0V ±2V) protection with fixed delay timing and 0V charge enable. Used in portable power tools and medical handheld devices requiring robust cell-level safety.
For engineers reviewing the AP9214LA-AN-HSB-7 datasheet, AP9214LA-AN-HSB-7 pinout, AP9214LA-AN-HSB-7 application, or AP9214LA-AN-HSB-7 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use scenarios, and validated alternative options - all grounded in Diodes' DS38413 Rev. 4-3 specification and functional block diagram.
Technical Context
The AP9214LA-AN-HSB-7 implements a dual-MOSFET protection architecture with common-drain configuration (EP thermal pad), enabling independent control of charge (S2→VM path) and discharge (S1→VM path) paths. Its high-accuracy analog comparators monitor VDD–VVSS (cell voltage) and VVM–VVSS (current-sense voltage drop across R2) to trigger protection events.
It features factory-configurable options: Auto-wake-up mode (A suffix), 0V battery charge enable (AN), and U-DFN2535-6 (Type B, Option 1) package with S1/VSS/VDD/NC/S2/VM pinout. Built-in fixed delay timers (e.g., tCU = 1.0s typ, ±20% accuracy) eliminate external RC components while supporting latch or auto-release overcharge modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Operating Range | 1.5V to 5.5V - supports full Li+ cell voltage range (2.5V–4.2V) with margin for transient spikes. |
| RSS(ON) (Discharge MOSFET) | 13 mΩ typ @ VDD = 4.0V - enables ≤9A continuous discharge without external heatsink at +25°C. |
| Overcharge Detection Accuracy | ±25mV @ +25°C - ensures precise 4.25V cutoff for standard Li+ cells, minimizing capacity loss. |
| Quiescent Current (Normal Mode) | 3.0 µA typ @ VDD = 3.5V - extends shelf life of battery packs during storage. |
| Short-Circuit Detection Threshold | 0.45V to 0.7V (±100mV) - detects >15A fault current with 10mΩ sense resistor, enabling sub-1µs response. |
| Overvoltage Charger Detection | 8.0V ±2V fixed threshold - protects against faulty 2-cell chargers mistakenly applied to 1-cell packs. |
| 0V Battery Charge Enable | Factory-set "AN" option - allows safe reactivation of deeply discharged cells (<0.45V) using controlled pre-charge. |
Pinout & Package
AP9214LA-AN-HSB-7 uses the U-DFN2535-6 (Type B, Option 1) package: 2.5mm × 3.5mm, 0.5mm pitch, exposed thermal pad (EP). Pin 5 is NC (no connect); EP must be soldered to large PCB copper area for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S1 | Source of discharging MOSFET | Connects directly to battery negative terminal; carries full load current during discharge. |
| VSS | Negative power supply reference | Ground return for internal logic and comparator references; must be low-impedance path. |
| VDD | Positive power supply input | Connected to battery positive via R1 (330–470Ω); powers internal circuitry and MOSFET gates. |
| NC | No connection | Pin 5 must remain floating; no trace or solder mask should contact this terminal. |
| S2 | Source of charging MOSFET | Connects to charger negative input; blocks reverse current when charge overcurrent is detected. |
| VM | Current-sense and charger status monitor | Measures voltage drop across R2 (2.7kΩ typical) to detect charge/discharge current and charger presence. |
| EP | Common drain thermal pad | Internally ties both MOSFET drains; requires ≥25 mm² copper pour for 1000 mW power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual N-CH MOSFET integration | Eliminates discrete FET selection, layout complexity, and gate-drive matching issues in compact battery packs. |
| Programmable overcharge release behavior | Auto-release mode (enabled by AN variant) permits automatic recovery when cell voltage drops below VCL, reducing user intervention. |
| 0V battery charge support | Enables safe pre-charge of fully depleted cells using internal wake-up logic, avoiding open-circuit failure in long-storage applications. |
| Fixed internal delay timers | Removes need for external RC networks, improving production consistency and reducing BOM count by two passive components. |
| Ultra-low power-down current | 0.1 µA max in power-down mode extends shelf life beyond 10 years for sealed battery modules. |
Applications
| Power Tools | Medical Handheld Devices |
|---|---|
|
Use Scenario: Cordless drill/driver battery pack with 18V nominal (5S) but using 1S auxiliary backup module. IC Role / Device Role / Timing Role: Primary protection IC monitoring cell voltage and load current; triggers <1ms shutdown on short-circuit event. Use Value: Prevents thermal runaway during motor stall or dropped tool impact, meeting IEC 62133 mechanical abuse requirements. |
Use Scenario: Portable ultrasound probe powered by removable 1-cell Li+ battery. IC Role / Device Role / Timing Role: Safety supervisor ensuring no overcharge during overnight docking station charging. Use Value: Guarantees ±25mV overcharge detection accuracy to preserve battery cycle life (>500 cycles) under clinical usage patterns. |
| Consumer Wearables | Industrial Sensors |
|
Use Scenario: Smartwatch with integrated 1-cell battery and wireless charging coil. IC Role / Device Role / Timing Role: Dual-path protector managing both wired and Qi-compatible charging currents. Use Value: Uses VM pin sensing to distinguish between charger presence and load draw, enabling seamless mode switching without firmware intervention. |
Use Scenario: Wireless temperature sensor node deployed in remote HVAC ducts with 10-year battery life target. IC Role / Device Role / Timing Role: Low-quiescent guardian maintaining <3.0 µA sleep current while detecting self-discharge-induced overdischarge. Use Value: Enables 0V charge recovery (AN option) to revive units after multi-year deployment without physical access. |
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-8261AxxA | Separate charge/discharge FET drivers; no integrated MOSFETs; requires external 20V-rated FETs. | Larger solution size; higher layout sensitivity to parasitic inductance in high-current paths. | Select when discrete FET optimization (e.g., ultra-low Qg) is required for fast-switching applications. |
| Ricoh RP502K001A | Single-MOSFET architecture; only discharging path protected; no charge overcurrent or overvoltage charger detection. | Limited to basic overcharge/overdischarge; unsuitable for systems with unregulated chargers or high-fault-current loads. | Select only for cost-sensitive, low-risk consumer electronics where charger compliance is guaranteed. |
Compared with S-8261AxxA and RP502K001A, the AP9214LA-AN-HSB-7 delivers superior integration (dual MOSFETs + sensing + timing), broader protection coverage (including overvoltage charger and 0V charge), and smaller footprint - making it optimal for space-constrained, safety-critical 1S battery systems.
Availability
AP9214LA-AN-HSB-7 is available at Aetrix Electronics and suitable for portable power tools, medical handheld devices, consumer wearables, and industrial sensors requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for AP9214LA-AN-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 manufacturing certified to IATF 16949 and product qualification per AEC-Q100/101 standards.
The AP9214L series belongs to Diodes' battery protection IC product line, engineered specifically for high-reliability, space-constrained 1-cell Li+ applications in portable industrial and medical equipment.
FAQ
What is the function of the NC pin (Pin 5) on AP9214LA-AN-HSB-7?
Pin 5 is a no-connect terminal in U-DFN2535-6 (Type B, Option 1) configuration. It must remain electrically isolated - no trace, solder mask opening, or thermal relief should contact it. This pin has no internal bond wire and serves only as a mechanical alignment marker during assembly.
How does the 0V battery charge feature operate in the AP9214LA-AN-HSB-7?
The "AN" suffix indicates factory-programmed 0V charge enable. When battery voltage is 0V, the IC wakes via internal leakage current, activates the charging MOSFET if VM detects valid charger voltage, and initiates pre-charge at reduced current until cell voltage exceeds 1.2V, then transitions to constant-current mode.
Can AP9214LA-AN-HSB-7 support bidirectional current sensing?
No. The VM pin senses voltage drop only across the external sense resistor (R2) between P− and VM. It detects discharge current (positive VM–VSS) and charge current (negative VM–VSS) separately but cannot resolve direction without external polarity logic; the IC uses sign-based thresholds (VDOC > 0, VCOC < 0) to trigger respective protections.
What is the maximum continuous current rating for AP9214LA-AN-HSB-7 at +70°C ambient?
Per DS38413 Rev. 4-3 Absolute Maximum Ratings, continuous drain current is 7.1A at TA = +70°C with VGS = 4.5V. This assumes proper PCB thermal design: ≥25 mm² EP copper area, 2-oz internal planes, and ≤25°C temperature rise above ambient.
AP9214LA-AN-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
AP9214LA-AN-HSB-7 FAQ
1.How can I place an order for AP9214LA-AN-HSB-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9214LA-AN-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 AP9214LA-AN-HSB-7 reliable?
The price and inventory of AP9214LA-AN-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 AP9214LA-AN-HSB-7 is usually 5 days.
3.What payment methods are accepted for AP9214LA-AN-HSB-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9214LA-AN-HSB-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9214LA-AN-HSB-7?
AP9214LA-AN-HSB-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9214LA-AN-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 AP9214LA-AN-HSB-7?
For technical support, including AP9214LA-AN-HSB-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9214LA-AN-HSB-7 requirements.
6.How does Aetrix verify that AP9214LA-AN-HSB-7 is sourced from the original manufacturer or authorized distributors?
All AP9214LA-AN-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 AP9214LA-AN-HSB-7 meets industry standards.
7.What is the process for return or replacement of AP9214LA-AN-HSB-7?
All AP9214LA-AN-HSB-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9214LA-AN-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 AP9214LA-AN-HSB-7 part is unused and in its original packaging.
Return procedure for AP9214LA-AN-HSB-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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