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Diodes Incorporated AP9214L-AJ-HSBR-7
- Part No.:
- AP9214L-AJ-HSBR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9214L-AJ-HSBR-7.pdf
- Description:
- IC BATT PROT LI-ION 1CELL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,192
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Product details
Overview
AP9214L-AJ-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 and medical devices requiring ultra-low quiescent current (3.0 µA typ) and thermal-efficient U-DFN2535-6 (Type B, Option 2) packaging.
For engineers reviewing the AP9214L-AJ-HSBR-7 datasheet, AP9214L-AJ-HSBR-7 pinout, AP9214L-AJ-HSBR-7 application, or AP9214L-AJ-HSBR-7 equivalent, key selection criteria include selectable power-down mode, 0V battery charge enablement, overcharge auto-release/latch configuration, and VM-sense-based current monitoring with ±15 mV VDOC accuracy across -40°C to +85°C.
Technical Context
The AP9214L-AJ-HSBR-7 implements dual independent protection paths: one for charging (controlled via S2/VM/VDD) and one for discharging (via S1/VM/VSS), each with dedicated voltage thresholds and delay timers. Its internal logic uses fixed-delay comparators-tCU = 1.0 s (typ), tSHORT = 1.2 μs (typ)-to avoid external RC components while maintaining ±20% timing accuracy.
It features two configurable options embedded at factory: power-down mode (enabled in this variant) and 0V battery charge permission. The VM pin serves as bidirectional current-sense node, interfacing with R2 (2.7 kΩ typical) to detect both charge overcurrent (VCOC = −0.05 V to −0.2 V) and discharge overcurrent (VDOC = 0.05 V to 0.32 V) using the same resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Operating Range | 1.5 V to 5.5 V - supports full Li+ cell voltage range including deep discharge recovery. |
| Overcharge Detection Voltage (VCU) | 4.25 V ±25 mV - factory-set threshold enabling precise termination before cell stress. |
| Discharge Overcurrent Threshold (VDOC) | 0.100 V ±15 mV - sets 10 A cutoff with 10 mΩ sense resistance, minimizing PCB heat generation. |
| Quiescent Current (Normal Mode) | 3.0 µA typ @ 3.5 V - extends shelf life of sealed battery packs without compromising responsiveness. |
| MOSFET RSS(ON) | 13.5 mΩ max @ VDD = 3.9 V - limits conduction loss to <135 mW at 10 A, reducing thermal load in compact U-DFN2535-6 package. |
| Short-Circuit Response Time | 1.2 μs typ - prevents catastrophic failure during direct P+/P− faults in handheld equipment. |
| Power-Down Current | 0.1 µA max @ 1.8 V - enables multi-year storage without measurable self-discharge acceleration. |
Pinout & Package
AP9214L-AJ-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 layout is top-view, non-reverse marked, with NC on Pin 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Discharge MOSFET source | Connects directly to battery negative (P−); forms low-side discharge path with EP drain. |
| 2 (VSS) | Negative supply reference | Ground return for all internal comparators and logic; must be low-impedance to VSS plane. |
| 3 (VDD) | Positive supply input | Connected to battery positive (P+) via R1 (330–470 Ω) for ESD and reverse-polarity protection. |
| 4 (VM) | Current-sense and charger monitor | Bi-directional node: measures VS1-S2 for discharge current and VP−-charger− for charge current via R2. |
| 5 (NC) | No connection | Must remain unconnected and floating; no internal bond wire or circuitry attached. |
| 6 (S2) | Charge MOSFET source | Connects to charger negative input; enables independent charge path control without sharing S1. |
| EP | Common MOSFET drain / thermal pad | Internally tied to drains of both MOSFETs; requires ≥100 mm² copper pour for thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual N-MOSFETs | Eliminates discrete FET layout complexity and reduces board area by >40% vs. discrete solutions. |
| Selectably enabled 0V battery charge | Permits safe recharge of deeply depleted cells (0 V) without external wake-up circuitry. |
| Factory-configured power-down mode | Reduces system standby current to 0.1 µA, extending shelf life for sealed medical or IoT battery packs. |
| Fixed overcharge release delay (tCUR) | 1.0 s typ ensures stable re-enablement after voltage recovers, preventing oscillation near VCL. |
| VM-based bidirectional current sensing | Uses single resistor (R2) to monitor both charge and discharge currents, cutting BOM count and layout cost. |
Applications
| Power Tools | Medical Wearables |
|---|---|
|
Use Scenario: Cordless drill battery pack with 10 A peak discharge and fast-charge capability. IC Role / Device Role / Timing Role: Primary protection controller enforcing overcurrent cutoff within 1.2 μs during motor stall, and overvoltage shutdown at 4.25 V during CC/CV charging. Use Value: Prevents thermal runaway during high-current operation while enabling full capacity utilization via ±25 mV VCU accuracy. |
Use Scenario: Rechargeable pulse oximeter with sealed 1-cell Li-ion and 5-year shelf-life requirement. IC Role / Device Role / Timing Role: Low-power protector maintaining 0.1 µA sleep current in power-down mode and enabling 0V charge recovery upon first use. Use Value: Guarantees field usability after long-term storage without pre-conditioning or manual wake-up. |
| Bluetooth Headsets | Portable Diagnostic Scanners |
|
Use Scenario: Compact wireless earbud case with integrated 1-cell Li-ion and USB-C fast charging. IC Role / Device Role / Timing Role: Dual-path protector managing independent charge (S2/VM) and discharge (S1/VM) paths to prevent cross-talk during simultaneous charge/discharge events. Use Value: Enables true concurrent charging and audio playback by isolating charge and discharge MOSFET control logic. |
Use Scenario: Handheld ultrasound scanner requiring robust short-circuit immunity during probe cable flexing. IC Role / Device Role / Timing Role: Short-circuit detector triggering MOSFET shutdown in 1.2 μs when VM exceeds 0.45 V, limiting fault energy to <10 µJ. Use Value: Meets IEC 60601-1 leakage and fault safety requirements without external crowbar circuits. |
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 | Single-MOSFET architecture; no integrated charge MOSFET; VCU accuracy ±30 mV; no 0V charge support. | Lacks independent charge path control; unsuitable for applications requiring concurrent charge/discharge. | Choose only if BOM cost is primary constraint and charge/discharge isolation is unnecessary. |
| Ricoh RP505K001B-TR-F | Higher quiescent current (1.5 µA min); no power-down mode; VDOC accuracy ±25 mV; RSS(ON) = 25 mΩ. | Thermal performance limited in compact enclosures due to higher on-resistance and no thermal pad. | Select when legacy qualification or automotive AEC-Q100 compliance is required over ultra-low IQ. |
Compared with S-8261AAL-M6T1U and RP505K001B-TR-F, AP9214L-AJ-HSBR-7 uniquely delivers dual-MOSFET integration, 0.1 µA power-down current, and ±15 mV VDOC accuracy in a thermally optimized U-DFN2535-6 package-enabling smaller, safer, and longer-shelf-life battery systems.
Availability
AP9214L-AJ-HSBR-7 is available at Aetrix Electronics and suitable for portable power tools, medical wearables, Bluetooth headsets, and portable diagnostic scanners requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for AP9214L-AJ-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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in IATF 16949-certified facilities.
The AP9214L belongs to Diodes' Battery Protection IC product line, engineered specifically for space-constrained, high-reliability 1-cell Li+ applications where ultra-low IQ, integrated MOSFETs, and factory-configurable safety parameters are critical.
FAQ
What is the function of the VM pin in AP9214L-AJ-HSBR-7?
The VM pin serves as a bidirectional current-sense terminal: it monitors voltage drop across R2 to detect both discharge overcurrent (when VM ≥ VDOC relative to VSS) and charge overcurrent (when VM ≤ VCOC relative to VSS). It also enables overvoltage charger detection (VDD–VM ≥ 8.0 V) and provides pull-up/pull-down paths (RVMD/RVMS) during protection events to stabilize sensing under fault conditions.
Does AP9214L-AJ-HSBR-7 support automatic recovery from overdischarge?
No-this variant includes factory-enabled power-down mode, meaning overdischarge recovery requires external charger connection to raise battery voltage above VDL. Unlike the auto-wake-up version (AP9214LA), it does not respond to passive voltage rise alone; the charger must be applied to exit power-down and restore normal operation.
How is the 0V battery charge function implemented?
The 0V battery charge function is factory-programmed into AP9214L-AJ-HSBR-7. When battery voltage is 0 V, the IC permits charging current to flow once VDD reaches ≥1.2 V (V0CHA), bypassing standard under-voltage lockout. This allows safe reactivation of deeply self-discharged cells without external circuitry or manual intervention.
What thermal design considerations apply to the EP pad?
The EP pad is the common drain connection for both internal MOSFETs and must be soldered to ≥100 mm² of inner/outer copper layer with ≥4 thermal vias (0.3 mm diameter) to a solid ground plane. Without adequate copper area, junction temperature can exceed 150°C at 7.1 A continuous current, triggering thermal shutdown or degrading long-term reliability.
AP9214L-AJ-HSBR-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/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
AP9214L-AJ-HSBR-7 FAQ
1.How can I place an order for AP9214L-AJ-HSBR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9214L-AJ-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 AP9214L-AJ-HSBR-7 reliable?
The price and inventory of AP9214L-AJ-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 AP9214L-AJ-HSBR-7 is usually 5 days.
3.What payment methods are accepted for AP9214L-AJ-HSBR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9214L-AJ-HSBR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9214L-AJ-HSBR-7?
AP9214L-AJ-HSBR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9214L-AJ-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 AP9214L-AJ-HSBR-7?
For technical support, including AP9214L-AJ-HSBR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9214L-AJ-HSBR-7 requirements.
6.How does Aetrix verify that AP9214L-AJ-HSBR-7 is sourced from the original manufacturer or authorized distributors?
All AP9214L-AJ-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 AP9214L-AJ-HSBR-7 meets industry standards.
7.What is the process for return or replacement of AP9214L-AJ-HSBR-7?
All AP9214L-AJ-HSBR-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9214L-AJ-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 AP9214L-AJ-HSBR-7 part is unused and in its original packaging.
Return procedure for AP9214L-AJ-HSBR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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