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Diodes Incorporated AP9211S-AI-HAC-7
- Part No.:
- AP9211S-AI-HAC-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9211S-AI-HAC-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,247
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Product details
Overview
AP9211S-AI-HAC-7 from Diodes Incorporated is a single-chip 1-cell Li⁺ battery protection IC integrating dual N-channel MOSFETs (common-drain configuration), overcharge/overdischarge voltage detection (±25 mV accuracy at +25°C), discharge overcurrent sensing (0.05–0.32 V range, ±15 mV accuracy), and short-circuit protection (0.45–0.7 V, ±100 mV). It operates in 1.5–5.5 V supply range and delivers 9.0 A continuous drain current at +25°C for portable power tool and Bluetooth headset battery packs.
For engineers reviewing the AP9211S-AI-HAC-7 datasheet, AP9211S-AI-HAC-7 pinout, AP9211S-AI-HAC-7 application, or AP9211S-AI-HAC-7 equivalent, key selection criteria include its U-DFN2030-6 (Type C) package thermal performance, selectable power-down mode, 0V battery charge permission, and fixed 8.0 V overvoltage charger detection with ±2 V tolerance - all critical for compact, high-reliability single-cell Li⁺ systems.
Technical Context
The AP9211S-AI-HAC-7 implements independent voltage monitoring paths for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), with dedicated delay timers (e.g., tCU = typical 1.0 s, ±20% accuracy) for each protection event. Its logic circuitry uses level-shifted gate drivers to control two integrated MOSFETs without external components.
It supports two operational modes: power-down (0.1 µA max ICC at 1.8 V) requiring charger activation to exit overdischarge, and auto-wake-up (3.5–5.5 µA IAUTO) enabling recovery when battery voltage rises above VDU. The built-in RVMD (150–500 kΩ) and RVMS (10–50 kΩ) internal resistors enable VM pin biasing without external pull-ups/downs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD–VSS Supply Range | 1.5–5.5 V: Supports full Li⁺ cell voltage swing (2.5–4.4 V) plus margin for transient spikes. |
| Overcharge Detection Voltage (VCU) | 4.375 V ±25 mV: Factory-trimmed threshold ensuring precise cell voltage cutoff before electrolyte decomposition. |
| Discharge Overcurrent Threshold (VDOC) | 0.095 V ±15 mV: Enables accurate 9.5 A current limit with 10 mΩ sense resistance (RSNS = VDOC/IMAX). |
| Continuous Drain Current (ID) | 9.0 A at TA = +25°C: Sustains high-power load pulses in cordless vacuum cleaners and e-bike accessories. |
| Quiescent Current (Normal Mode) | 3.0 µA typ @ 3.5 V: Extends shelf life of sealed battery packs by minimizing self-discharge during storage. |
| Package Thermal Resistance | U-DFN2030-6 (Type C) with EP pad: Enables 1000 mW power dissipation via PCB copper area, critical for sustained 5 A discharge. |
| 0V Battery Charge Function | Enabled: Allows safe reactivation of deeply discharged cells (0 V) using standard CC/CV chargers without manual pre-charge. |
Pinout & Package
AP9211S-AI-HAC-7 is housed in a 2.0 mm × 3.0 mm × 0.55 mm U-DFN2030-6 (Type C) package with exposed thermal pad (EP) connected to the common drain of both MOSFETs. The package requires solder paste stencil design per IPC-7527 and thermal pad grounding to maximize heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Source of discharging MOSFET | Connects directly to battery negative terminal; carries full discharge current path. |
| 2 (VSS) | Negative power supply reference | System ground return for all internal comparators and logic; must be low-impedance. |
| 3 (VDD) | Positive power supply input | Connected to battery positive via R1 (330–470 Ω); supplies IC core and gate drivers. |
| 4 (NC) | No-connect terminal | Internally unconnected; must remain floating - no trace or solder mask opening required. |
| 5 (VM) | Current-sense and charger status input | Monitors voltage drop across R2 (2.7 kΩ typical) to detect charge/discharge direction and magnitude. |
| 6 (S2) | Source of charging MOSFET | Connects to charger negative input; enables bidirectional current blocking during fault conditions. |
| EP | Common drain of both MOSFETs | Thermal and electrical connection point; requires ≥100 mm² copper pour for 1000 mW dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual N-MOSFETs | Eliminates discrete FET layout complexity and reduces BOM count by two components in space-constrained battery modules. |
| Fixed overvoltage charger detection | 8.0 V ±2 V threshold protects against faulty 5 V USB-PD or 9 V wall adapters without external Zener or divider network. |
| Selectable power-down mode | Reduces standby current to ≤0.1 µA, extending shelf life of medical patch monitors and IoT sensors stored >12 months. |
| Factory-configured 0V charge permission | Enables automatic recovery from deep sleep states in wearables without firmware intervention or external wake-up circuitry. |
| High-accuracy voltage detection | ±25 mV overcharge detection tolerance ensures compliance with JEITA lithium-ion safety standards (C.4.2.1). |
Applications
| Power Tool Battery Packs | Wireless Headset Batteries |
|---|---|
|
Use Scenario: Cordless drill battery pack subjected to 15 A intermittent loads and rapid 2C charging cycles. IC Role / Device Role / Timing Role: Primary protection controller monitoring cell voltage, discharge current, and short-circuit events with <1.0 s overcharge delay. Use Value: Prevents thermal runaway during stall-current events while maintaining <3.0 µA quiescent draw during idle periods between usage. |
Use Scenario: Compact Bluetooth earbud case battery operating in -10°C to +60°C ambient with frequent partial charge cycles. IC Role / Device Role / Timing Role: Dual-MOSFET switch managing charge path isolation and discharge path enablement with auto-wake-up recovery from overdischarge. Use Value: Enables reliable 0V recharge after 6-month storage and maintains ±35 mV overdischarge detection accuracy across full temperature range. |
| Medical Wearable Sensors | Smart Home Door Lock Batteries |
|
Use Scenario: Patch-style ECG monitor powered by 300 mAh Li⁺ cell, requiring >2-year shelf life and FDA-compliant safety margins. IC Role / Device Role / Timing Role: Safety-critical protector enforcing JEITA-compliant overcharge release hysteresis (0.7 V) and 0.1 µA power-down current. Use Value: Meets IEC 62133-2:2017 clause 12.3.2 for long-term storage stability and eliminates need for external low-leakage supervision IC. |
Use Scenario: Battery-powered smart lock using CR123A-sized Li⁺ cell with infrequent but high-peak motor actuation (2 A surge). IC Role / Device Role / Timing Role: Fault detector triggering MOSFET shutdown within 10 µs of short-circuit detection (tSHORT) at VM node. Use Value: Prevents MOSFET latch-up during motor stall while sustaining 21–33 mΩ on-resistance to minimize voltage drop during 2 A locking sequence. |
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 protection IC + external MOSFETs; no integrated FETs; 2.0 µA quiescent current; ±30 mV VCU accuracy. | Requires 4 additional passives and PCB area; lacks 0V charge function and overvoltage charger detection. | Choose when discrete FET selection (e.g., specific RDS(on) or voltage rating) is mandatory for legacy designs. |
| Ricoh RP506K000B-TR-F | Integrated dual-N FETs; 0.8 µA power-down current; ±50 mV VCU accuracy; no overvoltage charger detection. | Supports 0V charge but lacks 8.0 V overvoltage clamp; uses WLCSP-12 package (smaller but higher assembly cost). | Prefer for ultra-low-power medical patches where sub-1 µA standby dominates over charger fault protection. |
Compared with S-8261AAL-M6T1U and RP506K000B-TR-F, the AP9211S-AI-HAC-7 uniquely combines integrated MOSFETs, 8.0 V overvoltage charger detection, and factory-enabled 0V charge in a thermally optimized U-DFN2030-6 package - delivering lowest component count and highest fault coverage for consumer-grade 1-cell systems.
Availability
AP9211S-AI-HAC-7 is available at Aetrix Electronics and suitable for power tool battery packs, wireless headset batteries, medical wearable sensors, and smart home door lock batteries requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for AP9211S-AI-HAC-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 manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and protection applications.
The AP9211 belongs to Diodes' battery protection IC product line, engineered specifically for space-constrained, high-reliability 1-cell Li⁺ applications where integration, accuracy, and thermal robustness outweigh programmability requirements.
FAQ
What is the maximum continuous current the AP9211S-AI-HAC-7 can handle in discharge mode?
The AP9211S-AI-HAC-7 supports 9.0 A continuous drain current at +25°C ambient with proper PCB copper area on the EP pad. At +70°C, this derates to 7.1 A due to junction temperature limits. The actual current capability depends on RDS(on) (21–33 mΩ), ambient temperature, and thermal pad copper area - exceeding 9 A risks thermal shutdown or permanent damage.
Does the AP9211S-AI-HAC-7 require external resistors for overcharge detection?
No. Overcharge detection voltage (4.375 V) and hysteresis (0.2 V) are factory-trimmed and internally set. External resistors R1 (330–470 Ω) and R2 (2.7 kΩ) serve only to stabilize VDD supply and sense current via VM, not to configure protection thresholds.
How does the 0V battery charge function operate in practice?
When enabled (as in AP9211S-AI-HAC-7), the IC permits charging current to flow into a 0 V battery by temporarily overriding overdischarge lockout. The device monitors rising cell voltage and transitions to normal operation once VDD exceeds 1.2 V, allowing standard CC/CV charging without external pre-charge circuitry.
Can the AP9211S-AI-HAC-7 be used in automotive cabin applications?
No. While it meets AEC-Q200 stress test recommendations for some passive elements, the AP9211S-AI-HAC-7 is not qualified to AEC-Q100 and lacks PPAP documentation or IATF 16949 manufacturing certification. Diodes recommends contacting their automotive team for Q100-qualified alternatives like the AP9221 series.
AP9211S-AI-HAC-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
- Number of Cells:
- 1
- Fault Protection:
- Over Current, Over Voltage
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2030-6 (Type C)
AP9211S-AI-HAC-7 FAQ
1.How can I place an order for AP9211S-AI-HAC-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9211S-AI-HAC-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 AP9211S-AI-HAC-7 reliable?
The price and inventory of AP9211S-AI-HAC-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9211S-AI-HAC-7 is usually 5 days.
3.What payment methods are accepted for AP9211S-AI-HAC-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9211S-AI-HAC-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9211S-AI-HAC-7?
AP9211S-AI-HAC-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9211S-AI-HAC-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 AP9211S-AI-HAC-7?
For technical support, including AP9211S-AI-HAC-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9211S-AI-HAC-7 requirements.
6.How does Aetrix verify that AP9211S-AI-HAC-7 is sourced from the original manufacturer or authorized distributors?
All AP9211S-AI-HAC-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 AP9211S-AI-HAC-7 meets industry standards.
7.What is the process for return or replacement of AP9211S-AI-HAC-7?
All AP9211S-AI-HAC-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9211S-AI-HAC-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 AP9211S-AI-HAC-7 part is unused and in its original packaging.
Return procedure for AP9211S-AI-HAC-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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