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Diodes Incorporated AP9214LA-AG-HSBR-7
- Part No.:
- AP9214LA-AG-HSBR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9214LA-AG-HSBR-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,831
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Product details
Overview
AP9214LA-AG-HSBR-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) ≤16.5 mΩ), overcharge/overdischarge voltage detection (±25 mV accuracy), discharge overcurrent sensing (±15 mV), and short-circuit protection with 1.2 μs response. It operates in 1-cell Li-ion packs for portable power tools, Bluetooth headsets, and medical wearables.
For engineers reviewing the AP9214LA-AG-HSBR-7 datasheet, AP9214LA-AG-HSBR-7 pinout, AP9214LA-AG-HSBR-7 application, or AP9214LA-AG-HSBR-7 equivalent, key selection criteria include selectable auto-wake-up mode, 0V battery charge enable, ±25 mV overcharge voltage accuracy, and U-DFN2535-6 (Type B, Option 2) thermal pad layout compatibility.
Technical Context
The AP9214LA-AG-HSBR-7 implements independent voltage monitoring paths for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), with dedicated delay timers per protection event (e.g., tCU = 1.0 s typ, tSHORT = 1.2 μs). Its logic circuit controls two integrated N-MOSFETs using level-shifted gate drivers referenced to common drain (EP).
It supports factory-configured options: auto-wake-up (not power-down), 0V battery charge enabled, and fixed overvoltage charger detection (8.0 V ±2 V). The VM pin interfaces with external R2 (2.7 kΩ typical) to convert current-sense voltage into a measurable analog signal for discharge/charge overcurrent and short-circuit detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Operating Range | 1.5 V to 5.5 V - supports full Li+ cell voltage range (2.5 V–4.4 V) with margin for transient spikes. |
| Overcharge Detection Voltage | 4.250 V ±25 mV - high-accuracy threshold prevents premature charge cutoff and ensures safe full-charge termination. |
| Discharge Overcurrent Threshold | 0.150 V ±15 mV - enables precise current limiting at 15 A (with 10 mΩ sense resistor) without calibration. |
| Short-Circuit Response Time | 1.2 μs typ - shuts down discharge path before PCB trace fusing or connector arcing occurs. |
| Quiescent Current | 3.0 μA typ (Normal Mode) - extends shelf life of sealed battery packs during storage. |
| MOSFET RSS(ON) | 13.5 mΩ max (VDD = 3.9 V) - limits conduction loss to <200 mW at 9 A continuous discharge. |
| Operating Temperature | −40°C to +85°C - qualified for consumer and industrial portable equipment environments. |
Pinout & Package
AP9214LA-AG-HSBR-7 uses the U-DFN2535-6 (Type B, Option 2) package: 2.5 mm × 3.5 mm × 0.55 mm body with exposed thermal pad (EP). Pin 1–6 are arranged as S1–VSS–VDD–VM–S2–NC (top view); EP must be soldered to large copper area for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S1 | Source of discharging MOSFET | Connected directly to battery negative terminal; carries full load current during discharge. |
| VSS | Negative power supply reference | System ground return for all internal comparators and logic; must be low-impedance. |
| VDD | Positive supply input | Connected to battery positive via R1 (330–470 Ω); powers internal circuitry and gate drivers. |
| VM | Current-sense input | Monitors voltage drop across external R2 to detect charge/discharge current and short circuits. |
| S2 | Source of charging MOSFET | Connected to charger negative input; blocks reverse current when charge overcurrent is detected. |
| NC | No connect | Pin 5 is unconnected and must remain floating; no routing or soldering required. |
| EP | Common drain thermal pad | Shared drain node for both MOSFETs; requires ≥100 mm² copper pour for 1000 mW power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual N-MOSFETs | Eliminates need for external discrete FETs and reduces BOM count by 4 components in compact 1-cell packs. |
| Auto-wake-up mode | Enables automatic recovery from overdischarge without requiring charger connection-critical for user-replaceable batteries. |
| 0V battery charge enable | Permits safe reactivation of deeply discharged cells (0 V) using standard CC/CV chargers without manual intervention. |
| Fixed overvoltage charger detection | Protects against faulty >8.0 V chargers by disabling charge path instantly-no external Zener or divider needed. |
| Programmable protection thresholds | Factory-set VCU/VCL/VDL/VDU values allow customization per cell chemistry without changing firmware or external resistors. |
Applications
| Power Tools | Wireless Headsets |
|---|---|
Use Scenario: Cordless drill operating at 15–20 A peak discharge with frequent deep cycling. IC Role / Device Role / Timing Role: Primary protection controller managing dual MOSFETs to interrupt discharge during overcurrent or short-circuit events within 1.2 μs. Use Value: Prevents MOSFET thermal runaway and maintains pack integrity across 500+ charge cycles under high-stress usage. |
Use Scenario: True wireless stereo earbuds with 120 mAh Li+ cell and USB-C fast charging. IC Role / Device Role / Timing Role: Single-chip solution providing overcharge (4.25 V), overdischarge (2.5 V), and 0V charge enable for zero-voltage recovery. Use Value: Enables full functional recovery after accidental deep discharge, extending usable product lifetime beyond 2 years. |
| Portable Medical Monitors | Smart Wearables |
Use Scenario: FDA-cleared pulse oximeter with 24/7 operation and 7-day battery runtime. IC Role / Device Role / Timing Role: Low-quiescent-current (3.0 μA) protector ensuring minimal self-discharge during standby and accurate voltage monitoring at −20°C. Use Value: Guarantees reliable cold-start capability and meets IEC 62304 Class B software safety requirements via hardware-enforced shutdown. |
Use Scenario: Fitness tracker with wireless charging and sleep-mode current below 5 μA. IC Role / Device Role / Timing Role: Auto-wake-up enabled device that resumes normal operation when battery voltage exceeds 2.7 V after overdischarge. Use Value: Eliminates "bricked" units due to user-induced deep discharge, reducing warranty returns by >30%. |
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 IC + external MOSFETs; no integrated FETs; 4.25 V OCV accuracy ±30 mV. | Requires 4 extra passives and larger PCB area; lacks 0V charge and auto-wake-up. | Select when discrete FET selection (e.g., ultra-low Qg) is mandatory and board space permits. |
| Ricoh RP507K001B-TR-F | Single-chip with integrated MOSFETs but only 12 mΩ RSS(ON); no overvoltage charger detection. | Missing 8.0 V charger overvoltage lockout; requires external clamp for USB PD fast-charge compliance. | Prefer for cost-sensitive designs where charger fault protection is handled upstream. |
Compared with S-8261AAL-M6T1U and RP507K001B-TR-F, AP9214LA-AG-HSBR-7 uniquely combines integrated ultra-low-RDS(on) MOSFETs, factory-programmed 0V charge, auto-wake-up, and standalone overvoltage charger detection-reducing system-level component count by up to 7 parts while enabling robust field recovery.
Availability
AP9214LA-AG-HSBR-7 is available at Aetrix Electronics and suitable for portable power tools, wireless audio devices, medical monitors, and smart wearables requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP9214LA-AG-HSBR-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 design centers across Asia, Europe, and the US.
The AP9214L series targets compact, high-reliability Li+ battery protection in space-constrained portable electronics, emphasizing integration, precision voltage sensing, and configurable safety features.
FAQ
What is the function of the VM pin on AP9214LA-AG-HSBR-7?
The VM pin serves as the current-sense input terminal, measuring the voltage difference between itself and VSS to detect discharge overcurrent, charge overcurrent, and short-circuit conditions. It connects externally to a sense resistor (R2 = 2.7 kΩ typical) between P− and the battery negative terminal, enabling analog current monitoring without additional amplifiers.
Does AP9214LA-AG-HSBR-7 support overvoltage protection for the charger input?
Yes-it integrates a dedicated overvoltage charger detection circuit with fixed 8.0 V ±2 V threshold and 7.3 V ±2 V release voltage. When VDD–VM exceeds 8.0 V, the charging MOSFET turns off immediately (no delay), protecting against faulty or mismatched chargers in USB-C PD and proprietary fast-charge systems.
How does the auto-wake-up mode differ from power-down mode in this part?
AP9214LA-AG-HSBR-7 is configured for auto-wake-up mode (denoted by "A" in part number), meaning it remains active during overdischarge and automatically resumes normal operation when battery voltage rises above VDU (e.g., 2.7 V) for tDLR (e.g., 1.0 s). Power-down mode (denoted by blank) would require external charger connection to exit overdischarge state.
Can AP9214LA-AG-HSBR-7 be used with lithium iron phosphate (LiFePO₄) cells?
No-it is specifically designed for 1-cell Li-ion/Li-polymer chemistry with overcharge detection up to 4.5 V and overdischarge down to 2.0 V. LiFePO₄ cells have lower voltage ranges (2.5–3.65 V), requiring different thresholds; using this IC risks false overdischarge triggering or insufficient overcharge protection.
AP9214LA-AG-HSBR-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-AG-HSBR-7 FAQ
1.How can I place an order for AP9214LA-AG-HSBR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9214LA-AG-HSBR-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-AG-HSBR-7 reliable?
The price and inventory of AP9214LA-AG-HSBR-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-AG-HSBR-7 is usually 5 days.
3.What payment methods are accepted for AP9214LA-AG-HSBR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9214LA-AG-HSBR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9214LA-AG-HSBR-7?
AP9214LA-AG-HSBR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9214LA-AG-HSBR-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-AG-HSBR-7?
For technical support, including AP9214LA-AG-HSBR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9214LA-AG-HSBR-7 requirements.
6.How does Aetrix verify that AP9214LA-AG-HSBR-7 is sourced from the original manufacturer or authorized distributors?
All AP9214LA-AG-HSBR-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-AG-HSBR-7 meets industry standards.
7.What is the process for return or replacement of AP9214LA-AG-HSBR-7?
All AP9214LA-AG-HSBR-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9214LA-AG-HSBR-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-AG-HSBR-7 part is unused and in its original packaging.
Return procedure for AP9214LA-AG-HSBR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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