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Diodes Incorporated AP9211S-AG-HAC-7
- Part No.:
- AP9211S-AG-HAC-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9211S-AG-HAC-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,350
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Product details
Overview
AP9211S-AG-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/charge overcurrent sensing (±15 mV), and short-circuit protection (±100 mV) for 1-cell rechargeable battery packs in portable power tools and medical handheld devices.
For engineers reviewing the AP9211S-AG-HAC-7 datasheet, AP9211S-AG-HAC-7 pinout, AP9211S-AG-HAC-7 application, or AP9211S-AG-HAC-7 equivalent, key selection criteria include its U-DFN2030-6 (Type C) package, 0.1 µA max power-down current, selectable 0V charge function, and fixed 8.0 V overvoltage charger detection with ±2 V tolerance.
Technical Context
The AP9211S-AG-HAC-7 implements dual independent protection paths: one for charging (controlled by S2/VM/VDD) and one for discharging (controlled by S1/VM/VSS), each with dedicated voltage and current thresholds. Its internal logic uses fixed delay timers (e.g., tCU = 1.0 s typ., ±20% accuracy) and built-in pull-up/pull-down resistors (RVMD = 150–500 kΩ, RVMS = 10–50 kΩ) to eliminate external timing components.
It supports two operational modes: Power-Down (enabled by default in -AG variant) requiring charger reactivation after overdischarge, and Auto-Wake-Up (not present here). The device monitors VDD–VSS for cell voltage and VM–VSS for current-sense voltage across R2, enabling simultaneous detection of overcharge, overdischarge, and load faults without external comparators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD–VSS Range | 1.5 V to 5.5 V - supports full Li+ cell voltage range (2.5 V to 4.4 V) with margin for transient spikes |
| Overcharge Detection Voltage | 4.375 V ±25 mV - factory-trimmed threshold ensuring safe upper cell voltage limit before cutoff |
| Discharge Overcurrent Threshold | 0.150 V ±15 mV - sets 1.0 A trip point with 220 mΩ sense resistor, enabling precise current limiting |
| Quiescent Current (Normal) | 3.0 µA typ. @ +25°C - enables multi-year shelf life in battery-powered standby systems |
| Power-Down Current | 0.1 µA max @ VDD = 1.8 V - reduces self-discharge impact during long-term storage |
| MOSFET RSS(ON) | 27 mΩ typ. @ VDD = 4.0 V - limits conduction loss to <27 mW at 1 A discharge current |
| Short-Circuit Detection Voltage | 0.700 V ±100 mV - triggers sub-1 µs shutdown for loads drawing >3 A through 220 mΩ R2 |
Pinout & Package
AP9211S-AG-HAC-7 is housed in a thermally enhanced U-DFN2030-6 (Type C) package with exposed thermal pad (EP), optimized for compact battery pack PCB layouts and efficient heat dissipation during high-current discharge events.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Source of discharge MOSFET | Connects directly to battery negative terminal; carries full discharge current path |
| 2 (VSS) | Negative supply reference | Ground return for protection logic and voltage monitoring circuitry |
| 3 (VDD) | Positive supply input | Connected to battery positive via R1 (330–470 Ω); powers internal circuitry |
| 4 (NC) | No connection | Must remain unconnected and floating; no internal bond or function |
| 5 (VM) | Current-sense input | Monitors voltage drop across R2 to detect charge/discharge overcurrent and short circuits |
| 6 (S2) | Source of charge MOSFET | Connects to charger negative input; controls charge path enable/disable |
| EP | Common drain / thermal pad | Internally tied to MOSFET drains; requires large copper pour for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual n-MOSFETs | Eliminates need for external discrete FETs and gate drivers in space-constrained battery modules |
| Factory-programmed protection thresholds | Fixed VCU = 4.375 V, VDL = 2.500 V, VDOC = 0.150 V - ensures consistent, production-ready protection behavior |
| Built-in timing delays | tCU = 1.0 s, tDL = 128 ms, tSHORT = 8 µs - removes external RC networks and improves BOM reliability |
| Selectable 0V battery charge | Enabled (Permission) - allows recovery of deeply discharged cells without manual pre-charge circuitry |
| Overvoltage charger detection | 8.0 V fixed VOVCHG with no delay - protects against faulty or mismatched chargers in consumer electronics |
Applications
| Power Tools | Medical Handheld Devices |
|---|---|
|
Use Scenario: Cordless drill/driver battery packs subjected to high pulse currents (>5 A) and repeated deep cycling. IC Role / Device Role / Timing Role: Primary protection controller enforcing overcurrent cutoff within 8 µs during motor stall and overvoltage shutdown during fast-charge termination. Use Value: Prevents thermal runaway and cell venting by cutting off discharge at 0.150 V sense voltage (≈680 mA with 220 mΩ R2) and blocking charge above 4.375 V. |
Use Scenario: Portable ultrasound or glucose monitor batteries requiring ultra-low quiescent current and reliable deep-discharge recovery. IC Role / Device Role / Timing Role: Battery safety supervisor managing 0V charge enable, overdischarge release at 2.900 V, and auto-wake inhibition (power-down mode active). Use Value: Extends shelf life with 0.1 µA sleep current and enables field recovery of fully depleted cells using standard USB-C chargers. |
| Wireless Headphones | IoT Sensor Nodes |
|
Use Scenario: Compact Li+ battery packs in ANC headphones with tight thermal constraints and frequent partial charging cycles. IC Role / Device Role / Timing Role: Dual-path protector isolating charge and discharge paths while maintaining <3 µA operating current to minimize standby drain. Use Value: Achieves >12-month shelf life with integrated low-IQ design and eliminates external FET layout complexity in 30 mm² PCB area. |
Use Scenario: Remote environmental sensors powered by single-cell Li+ with infrequent transmission bursts and long idle periods. IC Role / Device Role / Timing Role: Low-power safety manager activating only during charge/discharge events and entering 0.1 µA power-down state between cycles. Use Value: Reduces annual self-discharge contribution to <1% of capacity, preserving 95% usable energy over 5-year deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5640T252A-TR | Higher VDD max (24 V), but no integrated MOSFETs - requires external dual n-FETs and gate drivers | Suitable for higher-voltage multi-cell designs; lacks 0V charge and fixed-delay integration | Choose when designing for 2–3 cell stacks or needing programmable thresholds |
| BD86300GUL | Includes integrated p-MOSFETs (higher RDS(on)), 2.5 µA IQ, but no overvoltage charger detection | Optimized for ultra-low-power wearables; missing 8.0 V VOVCHG failsafe for USB PD chargers | Prefer for sub-µA always-on monitoring where charger overvoltage risk is absent |
Compared with R5640T252A-TR and BD86300GUL, the AP9211S-AG-HAC-7 delivers lower system-level BOM cost and smaller footprint via monolithic integration, while offering unique overvoltage charger detection and factory-set precision thresholds ideal for high-volume consumer battery packs.
Availability
AP9211S-AG-HAC-7 is available at Aetrix Electronics and suitable for power tools, medical handheld devices, wireless headphones, and IoT sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for AP9211S-AG-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 cost-sensitive, space-constrained 1-cell Li+ applications demanding integrated MOSFETs, ultra-low quiescent current, and factory-trimmed voltage thresholds.
FAQ
What is the function of the NC pin (Pin 4) on AP9211S-AG-HAC-7?
Pin 4 is a no-connect terminal with no internal bond or electrical function. It must remain unconnected and floating in all PCB layouts. Leaving it unconnected prevents unintended coupling or leakage paths that could affect voltage detection accuracy or cause erratic power-down behavior during overdischarge recovery.
Does AP9211S-AG-HAC-7 support automatic recovery from overdischarge without a charger?
No. The -AG suffix indicates Power-Down Mode is enabled, meaning the device enters deep-sleep (0.1 µA) after overdischarge and requires external charger connection to restore normal operation. Unlike the -AA/-AB variants with Auto-Wake-Up, this part cannot self-reactivate upon battery voltage rise alone.
How is the 0V battery charge function implemented in AP9211S-AG-HAC-7?
The 0V charge function is factory-configured as "Permission" in this variant, allowing the charger to initiate charging even when battery voltage reads 0 V due to self-discharge. This is achieved via internal circuitry that bypasses the normal under-voltage lockout, enabling current flow once VDD exceeds 1.2 V per the datasheet's V0CHA specification.
What is the maximum continuous discharge current supported by AP9211S-AG-HAC-7?
Based on absolute maximum ratings and thermal performance, the device supports 9.0 A continuous drain current at +25°C ambient with proper PCB copper area on the EP pad. At +70°C, derating applies to 7.1 A. Actual usable current depends on RSS(ON) (27 mΩ typ.), trace resistance, and ambient temperature - exceeding 5 A requires careful thermal design.
AP9211S-AG-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-AG-HAC-7 FAQ
1.How can I place an order for AP9211S-AG-HAC-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9211S-AG-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-AG-HAC-7 reliable?
The price and inventory of AP9211S-AG-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-AG-HAC-7 is usually 5 days.
3.What payment methods are accepted for AP9211S-AG-HAC-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9211S-AG-HAC-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9211S-AG-HAC-7?
AP9211S-AG-HAC-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9211S-AG-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-AG-HAC-7?
For technical support, including AP9211S-AG-HAC-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9211S-AG-HAC-7 requirements.
6.How does Aetrix verify that AP9211S-AG-HAC-7 is sourced from the original manufacturer or authorized distributors?
All AP9211S-AG-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-AG-HAC-7 meets industry standards.
7.What is the process for return or replacement of AP9211S-AG-HAC-7?
All AP9211S-AG-HAC-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9211S-AG-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-AG-HAC-7 part is unused and in its original packaging.
Return procedure for AP9211S-AG-HAC-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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