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Diodes Incorporated AP9211S-AL-HAC-7
- Part No.:
- AP9211S-AL-HAC-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9211S-AL-HAC-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,917
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Product details
Overview
AP9211S-AL-HAC-7 from Diodes Incorporated is a single-chip 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-cell Li-ion packs for portable power tools and medical devices requiring high-accuracy cutoff and ultra-low quiescent current.
For engineers reviewing the AP9211S-AL-HAC-7 datasheet, AP9211S-AL-HAC-7 pinout, AP9211S-AL-HAC-7 application, or AP9211S-AL-HAC-7 equivalent, this page delivers verified functional roles, validated package mapping to U-DFN2030-6 (Type C), confirmed terminal functions per Diodes DS37596 Rev. 6–3, and real-world selection guidance for battery pack BMS design.
Technical Context
The AP9211S-AL-HAC-7 implements independent voltage monitoring paths for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), with dedicated logic blocks for overcharge (VCU/VCL), overdischarge (VDL/VDU), discharge overcurrent (VDOC), short-circuit (VSHORT), and charge overcurrent (VCOC) detection. Each event triggers MOSFET gate control via internal level-shifted drivers.
It features factory-configurable options: Power-down mode (enabled by default in -S suffix), 0V battery charge permission (AL variant), and fixed overvoltage charger detection (8.0 V ±2 V). Delay times (e.g., tCU = 1.0 s typ.) are built-in with ±20% tolerance at +25°C, eliminating external RC timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD–VSS Operating Range | 1.5 V to 5.5 V - supports full Li+ cell voltage range including deep discharge recovery. |
| Overcharge Detection Voltage (VCU) | 4.375 V ±25 mV - precise cutoff before cell degradation; factory-set for AL variant. |
| Discharge Overcurrent Threshold (VDOC) | 0.095 V ±15 mV - enables accurate current limiting using low-value sense resistors (e.g., 5 mΩ yields 19 A trip). |
| Quiescent Current (Normal Mode) | 3.0 µA typ. @ +25°C - extends battery shelf life in standby without external wake-up circuitry. |
| MOSFET RSS(ON) | 27 mΩ typ. @ VDD = 4.0 V - limits conduction loss and thermal rise during 5 A continuous discharge. |
| Short-Circuit Detection Voltage (VSHORT) | 0.700 V ±100 mV - triggers sub-1 µs shutdown for >140 A fault current with 5 mΩ sense resistor. |
| Operating Temperature | −40°C to +85°C - qualified for industrial and portable medical equipment environments. |
Pinout & Package
AP9211S-AL-HAC-7 is housed in a thermally enhanced U-DFN2030-6 (Type C) package (2.0 mm × 3.0 mm × 0.55 mm), featuring an exposed thermal pad (EP) tied to the common drain of both integrated MOSFETs. PCB layout requires direct copper pour under EP for effective heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Source of discharging MOSFET | Connected directly to battery negative terminal; carries full load current path. |
| 2 (VSS) | Negative power supply reference | System ground return for all internal comparators and logic; must be low-impedance. |
| 3 (VDD) | Positive supply input | Connected to battery positive via R1 (330–470 Ω); powers internal circuitry and MOSFET gates. |
| 4 (NC) | No-connect terminal | Internally unconnected; must remain floating-no PCB trace or solder mask opening required. |
| 5 (VM) | Current-sense input / charger monitor | Differential input referenced to VSS; senses voltage drop across R2 to detect charge/discharge current and charger presence. |
| 6 (S2) | Source of charging MOSFET | Connected to charger negative input; enables bidirectional current control with S1. |
| EP | Common drain node | Thermal and electrical connection point for both MOSFET drains; requires large copper area for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual N-MOSFETs | Eliminates discrete FET selection, layout complexity, and gate-drive matching issues in compact 1-cell packs. |
| Factory-programmed protection thresholds | VCU = 4.375 V, VDL = 2.500 V, VDOC = 0.095 V - ensures consistent performance without external resistor trimming. |
| 0V battery charge enable (AL option) | Allows safe recharge of deeply discharged cells (down to 0 V) without manual intervention or external wake-up circuitry. |
| Power-down mode activation | Reduces current draw to ≤0.1 µA during overdischarge, preserving residual capacity for emergency recovery. |
| Built-in overvoltage charger detection | Monitors VDD–VM up to 8.0 V ±2 V to disable charging if incompatible high-voltage chargers are attached. |
Applications
| Power Tools | Medical Wearables |
|---|---|
|
Use Scenario: Cordless drill battery packs subject to high pulse currents (>15 A) and mechanical shock-induced shorts. IC Role / Device Role / Timing Role: Primary protection controller enforcing overcurrent cutoff within 1.2 ms (tDOC typ.) and short-circuit shutdown in <1 µs (tSHORT). Use Value: Prevents thermal runaway during motor stall or connector arcing while maintaining >98% efficiency in normal operation due to 27 mΩ RSS(ON). |
Use Scenario: Rechargeable ECG patch with 24/7 wearability, requiring zero-maintenance shelf life and safe 0V recovery. IC Role / Device Role / Timing Role: Standalone safety supervisor enabling automatic reactivation after 0V self-discharge via AL-configured wake-up path. Use Value: Eliminates need for service-mode jumpers or external LDOs, reducing BOM count and enabling fully sealed device enclosures. |
| Bluetooth Headsets | Portable Diagnostic Scanners |
|
Use Scenario: Ultra-thin earbud battery modules where board space limits discrete protection solutions. IC Role / Device Role / Timing Role: Space-constrained single-chip solution replacing 3–4 discrete ICs and MOSFETs in U-DFN2030-6 footprint. Use Value: Saves ≥3.5 mm² PCB area versus discrete alternatives while delivering identical protection coverage and ±25 mV voltage accuracy. |
Use Scenario: Handheld ultrasound scanner operating in field clinics with unreliable AC power and frequent deep discharge cycles. IC Role / Device Role / Timing Role: Robust overdischarge handler with VDL = 2.500 V ±35 mV and auto-release at VDU = 2.900 V to prevent irreversible capacity loss. Use Value: Extends usable cycle life beyond 500 cycles by avoiding lithium plating during repeated 2.0–2.5 V operation. |
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 charge/discharge FET control; no integrated MOSFETs; 1.8 µA quiescent current. | Requires external dual-N MOSFETs and gate resistors; lacks 0V charge function and overvoltage charger detection. | Select when discrete FET optimization is needed or when lower IQ outweighs integration benefits. |
| Ricoh RP502K001B-TR-F | Single integrated N-MOSFET only; no charging FET; 2.5 µA IQ; VCU = 4.25 V fixed. | Supports discharge-only protection; unsuitable for bidirectional (charge+discharge) battery systems. | Choose only for cost-sensitive, discharge-only applications where charger control is handled externally. |
Compared with S-8261AAB-M6T1U and RP502K001B-TR-F, the AP9211S-AL-HAC-7 uniquely combines dual-MOSFET integration, factory-set precision thresholds, 0V charge enable, and overvoltage charger monitoring-making it the only drop-in solution for compact, bidirectional, maintenance-free 1-cell packs.
Availability
AP9211S-AL-HAC-7 is available at Aetrix Electronics and suitable for portable medical devices, cordless power tools, and Bluetooth audio accessories requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for AP9211S-AL-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial and consumer markets.
The AP9211 belongs to Diodes' Battery Protection IC product line, engineered specifically for space-constrained, high-accuracy 1-cell Li+ applications where integration, low IQ, and factory-trimmed thresholds reduce design risk and time-to-market.
FAQ
What is the function of the NC pin (Pin 4) on AP9211S-AL-HAC-7?
Pin 4 is internally unconnected and serves no electrical function. It must remain floating-no PCB trace, solder mask opening, or grounding is permitted. This pin exists solely for mechanical symmetry in the U-DFN2030-6 (Type C) package and has no impact on thermal or electrical performance.
Does AP9211S-AL-HAC-7 support reverse-polarity protection?
No. The AP9211S-AL-HAC-7 does not include reverse-polarity protection. External components-specifically R1 (330–470 Ω) and R2 (300–4 kΩ)-act as current-limiting resistors if battery or charger polarity is reversed, preventing catastrophic failure but not blocking reverse current. System-level reverse protection requires external diodes or ideal diode controllers.
How does the 0V battery charge function operate in the AL variant?
In the AL variant, the 0V battery charge function permits charging initiation when cell voltage is 0 V. It activates internal wake-up circuitry upon charger connection, pulling VM toward VDD via RVMD to exit power-down mode. Charging begins once VDD rises above 1.2 V (V0CHA), enabling recovery without external intervention.
Can AP9211S-AL-HAC-7 be used in automotive applications?
AP9211S-AL-HAC-7 is not AEC-Q200 qualified and is not recommended for automotive use. Diodes Incorporated explicitly states that automotive-grade versions require separate qualification (PPAP, IATF 16949 manufacturing, AEC-Q100/101 testing) and must be requested directly through their automotive sales team-not via standard part numbering.
AP9211S-AL-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-AL-HAC-7 FAQ
1.How can I place an order for AP9211S-AL-HAC-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9211S-AL-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-AL-HAC-7 reliable?
The price and inventory of AP9211S-AL-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-AL-HAC-7 is usually 5 days.
3.What payment methods are accepted for AP9211S-AL-HAC-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9211S-AL-HAC-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9211S-AL-HAC-7?
AP9211S-AL-HAC-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9211S-AL-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-AL-HAC-7?
For technical support, including AP9211S-AL-HAC-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9211S-AL-HAC-7 requirements.
6.How does Aetrix verify that AP9211S-AL-HAC-7 is sourced from the original manufacturer or authorized distributors?
All AP9211S-AL-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-AL-HAC-7 meets industry standards.
7.What is the process for return or replacement of AP9211S-AL-HAC-7?
All AP9211S-AL-HAC-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9211S-AL-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-AL-HAC-7 part is unused and in its original packaging.
Return procedure for AP9211S-AL-HAC-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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