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Diodes Incorporated AP9214LA-AM-HSB-7
- Part No.:
- AP9214LA-AM-HSB-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9214LA-AM-HSB-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,669
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Product details
Overview
AP9214LA-AM-HSB-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) = 13 mΩ typ at VDD = 4.0 V) and precision voltage/current detection circuitry for 1-cell rechargeable battery packs. It provides overcharge (3.5–4.5 V, ±25 mV), overdischarge (2.0–3.4 V, ±35 mV), discharge/charge overcurrent (±15 mV), and short-circuit protection with fixed delay timing, operating across –40°C to +85°C.
For engineers reviewing the AP9214LA-AM-HSB-7 datasheet, AP9214LA-AM-HSB-7 pinout, AP9214LA-AM-HSB-7 application, or AP9214LA-AM-HSB-7 equivalent, key selection criteria include its U-DFN2535-6 (Type B, Option 1) package, 0.1 µA max power-down current, selectable 0V charge function, auto-release/latch overcharge mode, and integrated MOSFET thermal pad (EP) for high-current battery management in space-constrained portable devices.
Technical Context
The AP9214LA-AM-HSB-7 implements dual independent protection paths: one for charging (controlled via S2/VM/VDD) and one for discharging (controlled via S1/VM/VSS), each with dedicated voltage thresholds and delay timers. Its internal logic uses level-shifted gate drivers to control the common-drain dual N-MOSFET structure, enabling bidirectional current monitoring without external sense resistors beyond R2.
It features factory-configurable options encoded in the part number: 'A' denotes auto-wake-up (not power-down), 'M' specifies overcharge detection voltage = 4.25 V (±25 mV), and 'HSB' confirms U-DFN2535-6 Type B pin-out Option 1 (S1-VSS-VDD-NC-S2-VM-EP). The built-in RVMD/RVMS internal resistors enable automatic status pull-up/pull-down during fault conditions without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCU | 4.25 V ±25 mV - precise overcharge detection threshold, enabling safe full-charge termination for Li+ cells. |
| VDL | 2.50 V ±35 mV - accurate low-voltage cutoff to prevent deep discharge damage to 1-cell Li+ batteries. |
| RSS(ON) | 13 mΩ typ @ VDD = 4.0 V - ultra-low on-resistance reduces power loss and heat generation during 9 A continuous discharge. |
| IQ (Normal) | 3.0 µA typ @ 25°C - enables multi-year battery shelf life in always-connected portable electronics. |
| tSHORT | 1.0 µs typ - sub-microsecond short-circuit response prevents catastrophic failure during accidental load faults. |
| VSHORT | 0.55 V ±100 mV - robust short-detection threshold tolerant of PCB trace resistance and current-sense resistor tolerance. |
| Operating Temp | –40°C to +85°C - qualified for industrial and consumer-grade battery packs exposed to ambient temperature extremes. |
Pinout & Package
AP9214LA-AM-HSB-7 is housed in a thermally enhanced U-DFN2535-6 (Type B) package with exposed drain thermal pad (EP), optimized for high-current battery protection in compact layouts. Pin-out Option 1 is confirmed per datasheet DS38413 Rev. 4-3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Discharge MOSFET source | Connects directly to battery negative terminal; carries full discharge current path through integrated MOSFET. |
| 2 (VSS) | Negative supply reference | Ground reference for all internal analog comparators and logic; must be low-impedance connection to battery cathode. |
| 3 (VDD) | Positive supply input | Connected to battery anode via current-limiting resistor R1 (330–470 Ω); powers internal circuitry and gate drivers. |
| 4 (NC) | No connect | Pin left floating; no internal connection - must not be soldered or tied to any net. |
| 5 (S2) | Charge MOSFET source | Connects to charger negative input; enables independent charge-path control and reverse-connection protection. |
| 6 (VM) | Current sense & status monitor | Senses voltage drop across R2 to detect charge/discharge current direction and magnitude; enables fault latching and auto-wake-up. |
| EP | Common drain thermal pad | Shared drain node of both MOSFETs; requires large copper pour for thermal dissipation and low-inductance current return path. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual N-MOSFETs | 13 mΩ RSS(ON) + common-drain EP pad eliminates external FETs and reduces BOM count by ≥2 components. |
| Factory-programmed thresholds | 4.25 V overcharge / 2.50 V overdischarge settings reduce design validation effort and eliminate external resistor trimming. |
| Auto-wake-up mode | Enables recovery from overdischarge without charger presence - critical for user-recoverable dead-battery scenarios in wearables. |
| 0V battery charge enable | Permits safe reactivation of deeply depleted cells (0 V) using standard CC/CV chargers, extending usable battery lifetime. |
| Built-in delay timers | Fixed tCU, tDL, tDOC, and tSHORT eliminate external RC networks and improve production consistency. |
Applications
| Smartphone Battery Packs | Wireless Earbud Cases |
|---|---|
|
Use Scenario: Primary protection IC in sealed 1S Li+ battery modules powering smartphones with fast-charge support up to 3 A. IC Role / Device Role / Timing Role: Monitors cell voltage and VM-sensed current to independently disable charge/discharge paths within 1 µs during short circuits and enforce 4.25 V/2.50 V thresholds. Use Value: Prevents thermal runaway during adapter faults while maintaining <3 µA quiescent current to avoid parasitic drain during standby. |
Use Scenario: Protection solution in compact charging cases for true wireless stereo earbuds with integrated 1S 300–500 mAh batteries. IC Role / Device Role / Timing Role: Provides overdischarge recovery via auto-wake-up when case is placed on Qi charger, even if battery voltage has dropped to 0 V. Use Value: Eliminates "bricked" cases due to self-discharge; enables reliable user experience without manual reset or service intervention. |
| Power Tool Battery Packs | Portable Medical Monitors |
|
Use Scenario: Secondary protection layer in 18 V (5S) tool packs where AP9214LA-AM-HSB-7 guards individual 3.6 V cells against imbalance-induced overvoltage. IC Role / Device Role / Timing Role: Acts as per-cell supervisor detecting >4.25 V during active charging and disabling that cell's charge path before adjacent cells overcharge. Use Value: Adds redundancy to pack-level BMS, improving safety certification compliance (IEC 62133) without increasing board area. |
Use Scenario: Safety-critical backup battery protection in handheld ECG or pulse oximeter devices requiring guaranteed 5-year shelf life and field reliability. IC Role / Device Role / Timing Role: Enforces strict 2.50 V overdischarge cutoff and 0.1 µA power-down current to preserve battery capacity during long-term storage. Use Value: Meets ISO 13485 manufacturing requirements for medical device battery longevity and fault-free activation after extended dormancy. |
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-8261AAL-M6T1U | Separate charge/discharge FETs required; no integrated MOSFETs; 1.8 µA IQ; fixed 4.25 V/2.5 V thresholds. | Lacks auto-wake-up and 0V charge; requires external 20 mΩ FETs increasing footprint and thermal complexity. | Select when lowest quiescent current is prioritized over integration and recovery flexibility. |
| Ricoh RP506K001A-TR-F | Integrated dual N-MOSFETs (15 mΩ); supports 0V charge and auto-wake-up; but only 4.20 V VCU (±30 mV) and no overvoltage charger detection. | Missing 8.0 V overvoltage charger protection - unsuitable for USB PD or multi-adapter environments. | Select for cost-sensitive consumer wearables where charger voltage is tightly regulated and thermal margin is sufficient. |
Compared with S-8261AAL-M6T1U and RP506K001A-TR-F, AP9214LA-AM-HSB-7 uniquely combines integrated 13 mΩ MOSFETs, 8.0 V overvoltage charger detection, and factory-set 4.25 V/2.50 V thresholds - delivering higher system-level safety and smaller PCB area in fast-charging portable designs.
Availability
AP9214LA-AM-HSB-7 is available at Aetrix Electronics and suitable for smartphone battery packs, wireless earbud cases, power tool cells, and portable medical monitors requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for AP9214LA-AM-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 a focus on high-reliability power management and protection ICs.
The AP9214L series is part of Diodes' battery protection product line, engineered specifically for space-constrained, high-safety 1-cell Li+ applications in consumer and industrial portable electronics.
FAQ
What is the function of the NC pin (Pin 4) on AP9214LA-AM-HSB-7?
Pin 4 is a no-connect terminal with no internal bond wire or circuit connection. It must remain unconnected and floating in PCB layout - soldering it to ground, VDD, or any other net may cause unpredictable behavior or latch-up. This pin exists solely for mechanical symmetry in the U-DFN2535-6 (Type B) package footprint.
Does AP9214LA-AM-HSB-7 support simultaneous charge and discharge?
No. The AP9214LA-AM-HSB-7 uses mutually exclusive control logic: when the charging MOSFET (S2 path) is enabled, the discharging MOSFET (S1 path) is disabled, and vice versa. This prevents shoot-through and ensures safe operation during charger insertion/removal events in single-cell systems.
How does the auto-wake-up function recover from overdischarge without a charger?
In auto-wake-up mode (denoted by 'A' in part number), the device monitors battery voltage during overdischarge. If VBAT rises to ≥2.50 V (VDU) and remains there for ≥tDLR (overdischarge release delay), the IC automatically re-enables the discharge MOSFET - enabling recovery from 0 V via leakage current or minimal load-induced voltage rise.
What is the maximum continuous current rating for AP9214LA-AM-HSB-7?
The device supports 9.0 A continuous drain current at TA = +25°C (VGS = 4.5 V), derating to 7.1 A at +70°C. This rating assumes proper PCB copper area under the EP thermal pad (≥100 mm²) and ambient airflow; actual current capability depends on thermal design and voltage drop across RSS(ON).
AP9214LA-AM-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-AM-HSB-7 FAQ
1.How can I place an order for AP9214LA-AM-HSB-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9214LA-AM-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-AM-HSB-7 reliable?
The price and inventory of AP9214LA-AM-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-AM-HSB-7 is usually 5 days.
3.What payment methods are accepted for AP9214LA-AM-HSB-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9214LA-AM-HSB-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9214LA-AM-HSB-7?
AP9214LA-AM-HSB-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9214LA-AM-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-AM-HSB-7?
For technical support, including AP9214LA-AM-HSB-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9214LA-AM-HSB-7 requirements.
6.How does Aetrix verify that AP9214LA-AM-HSB-7 is sourced from the original manufacturer or authorized distributors?
All AP9214LA-AM-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-AM-HSB-7 meets industry standards.
7.What is the process for return or replacement of AP9214LA-AM-HSB-7?
All AP9214LA-AM-HSB-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9214LA-AM-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-AM-HSB-7 part is unused and in its original packaging.
Return procedure for AP9214LA-AM-HSB-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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