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Diodes Incorporated AP9101CK-ACTRG1
- Part No.:
- AP9101CK-ACTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CK-ACTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,889
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Product details
Overview
AP9101CK-ACTRG1 from Diodes Incorporated is a single-chip lithium-ion battery protection IC for 1-cell packs, featuring overcharge detection at 4.375V ±25mV, overdischarge detection at 2.500V ±35mV, and discharge overcurrent detection at 0.095V ±15mV. It integrates fixed-delay timing circuits, supports selectable 0V battery charge and power-down mode, and drives external N-channel MOSFETs via CO/DO pins in SOT25 package for portable power tools and medical wearables.
For engineers reviewing the AP9101CK-ACTRG1 datasheet, AP9101CK-ACTRG1 pinout, AP9101CK-ACTRG1 application, or AP9101CK-ACTRG1 equivalent, this page delivers verified voltage thresholds, real-world timing accuracy (±20% delay), CO/DO gate drive capability, VM-sense architecture, and functional distinctions among factory-configured variants - all critical for BMS layout, fault response tuning, and qualification against IEC 62133.
Technical Context
The AP9101CK-ACTRG1 implements dual-path sensing: VDD–VSS monitors cell voltage for overcharge/overdischarge, while VM–VSS detects current via sense resistor voltage for discharge/charge overcurrent and short-circuit events. Its logic circuit enforces auto-release overcharge protection with fixed 4.175V release threshold and 2.900V overdischarge release voltage.
It uses internal high-voltage CMOS process enabling 30V VM–VDD rating, supports 0V battery charging activation at ≥1.2V charger input, and includes built-in RVMD/RVMS resistors (300kΩ/30kΩ typ) to enable automatic wake-up from overdischarge without external components - eliminating need for manual reset or auxiliary circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overcharge Detection Voltage | 4.375V ±25mV - sets precise upper cell voltage limit before disabling charge path |
| Overdischarge Detection Voltage | 2.500V ±35mV - triggers discharge cutoff to prevent deep discharge damage |
| Discharge Overcurrent Threshold | 0.095V ±15mV - determines minimum sense resistor value for 5A–10A load protection |
| CO/DO Output Drive | 6kΩ typ "H" resistance - ensures reliable turn-on of low-threshold N-MOSFETs without external buffers |
| Operating Current | 3.0µA typ at 3.5V - enables >1-year shelf life in battery-powered IoT devices |
| VM–VDD Rating | 30V - supports high-side charger monitoring in buck-boost or multi-cell charger architectures |
| 0V Charge Enable | Active - allows safe recharge of fully depleted cells using standard CC/CV chargers |
Pinout & Package
AP9101CK-ACTRG1 is housed in a RoHS-compliant SOT25 (SC-74A) surface-mount package with 5 terminals, optimized for compact 1-cell battery pack PCB layouts and thermal performance up to +85°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM (Pin 1) | Current-sense input | Monitors voltage drop across external sense resistor to detect discharge/charge overcurrent and short-circuit conditions |
| VDD (Pin 2) | Positive supply input | Connects to battery positive; powers internal circuitry and defines reference for all voltage detection thresholds |
| VSS (Pin 3) | Negative supply ground | System ground reference for all analog comparators and logic; tied to battery negative terminal |
| DO (Pin 4) | Discharge control output | Drives gate of external N-MOSFET in discharge path; goes low to disable discharge during faults |
| CO (Pin 5) | Charge control output | Drives gate of external N-MOSFET in charge path; goes low to disable charging during overvoltage or overcurrent |
Key Features
| Feature | Design Value |
|---|---|
| Fixed-time protection delay | Internal RC timing eliminates need for external capacitors - reduces BOM count and layout area |
| Selectable power-down mode | Factory-configured option enables <0.1µA standby current during storage, extending shelf life |
| Integrated 0V battery charge function | Permits full recharge of self-discharged cells without external wake-up circuitry or manual intervention |
| High-accuracy hysteresis control | ±50mV overcharge hysteresis (0.2V fixed) prevents oscillation near trip points during marginal voltage conditions |
| Overvoltage charger detection | 8.0V ±2V detection with no delay protects against faulty or mismatched chargers in field-deployed devices |
Applications
| Power Tool Battery Packs | Medical Wearable Devices |
|---|---|
|
Use Scenario: Cordless drill/driver battery packs requiring robust overcurrent and short-circuit protection during high-torque operation. IC Role / Device Role / Timing Role: Primary protection controller that disables discharge path within 1.2ms (tDOC typ) when VM–VSS exceeds 0.095V, preventing MOSFET thermal runaway. Use Value: Enables use of cost-effective 5mΩ sense resistors while maintaining sub-10A fault detection resolution and eliminating external timing caps. |
Use Scenario: Rechargeable ECG patch or glucose monitor with strict leakage current limits and zero-volt recovery requirement. IC Role / Device Role / Timing Role: Low-power protector that maintains 3.0µA operating current and activates 0V charge function upon charger connection, restoring functionality after long-term storage. Use Value: Eliminates need for mechanical reset switches or secondary supervisor ICs, reducing assembly steps and failure modes. |
| Bluetooth Headset Batteries | Smart Home Sensor Nodes |
|
Use Scenario: Compact Li-ion packs in wireless earbuds where space constraints prohibit discrete protection solutions. IC Role / Device Role / Timing Role: Single-chip solution integrating overcharge (4.375V), overdischarge (2.500V), and short-circuit (0.700V) detection with auto-release behavior. Use Value: Reduces footprint by >40% vs. discrete FET + comparator designs and guarantees ±25mV voltage accuracy critical for cycle-life optimization. |
Use Scenario: Battery-powered Zigbee or Matter sensor nodes deployed in unattended locations for >2 years. IC Role / Device Role / Timing Role: Ultra-low-power protector with 0.1µA power-down mode and automatic wake-up on voltage rise, ensuring reliable restart after deep discharge. Use Value: Extends usable battery capacity by avoiding permanent lockout and supports firmware-triggered charge initiation without hardware modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar lithium-ion battery protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Seiko Instruments S-8261AAL-M6T1U | Fixed 4.25V overcharge threshold; no 0V charge function; requires external capacitor for delay timing | Lacks auto-wake-up and 0V charge - unsuitable for devices stored discharged or requiring field recovery | Choose only if fixed 4.25V threshold aligns with cell chemistry and external cap placement is acceptable |
| Ricoh RP502K001B-TR-F | Supports 2-cell configuration; higher 5.0V overvoltage detection; 5.5µA operating current | Designed for multi-cell systems; higher quiescent current reduces shelf-life in ultra-low-power nodes | Select only for 2S battery packs or when higher overvoltage margin (>5V) is required for charger compatibility |
Compared with S-8261AAL-M6T1U and RP502K001B-TR-F, AP9101CK-ACTRG1 uniquely combines factory-programmed 4.375V/2.500V thresholds, integrated 0V charge, and capacitor-free timing - making it optimal for space-constrained, long-storage, single-cell consumer electronics where precision and autonomy are mandatory.
Availability
AP9101CK-ACTRG1 is available at Aetrix Electronics and suitable for power tool battery packs, medical wearable devices, Bluetooth headset batteries, and smart home sensor nodes requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for AP9101CK-ACTRG1 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, computing, and consumer markets.
The AP9101C product line delivers single-chip battery protection ICs targeting compact, cost-sensitive 1-cell Li-ion applications - emphasizing precision voltage detection, ultra-low quiescent current, and factory-configurable safety parameters to accelerate BMS design.
FAQ
What is the function of the VM pin on AP9101CK-ACTRG1?
The VM pin serves as the current-sense input referenced to VSS, detecting voltage drop across an external sense resistor to trigger discharge overcurrent (0.095V threshold), charge overcurrent (−0.095V), and short-circuit (0.700V) protection. It also enables automatic wake-up from overdischarge via internal RVMS resistor connection to VSS.
Does AP9101CK-ACTRG1 support both overcharge and overdischarge auto-release?
Yes - it implements auto-release overcharge protection with fixed 4.175V release voltage and auto-release overdischarge with 2.900V release voltage. When battery voltage recovers beyond these thresholds, CO and DO outputs return high to re-enable charge/discharge paths without external intervention.
How does the 0V battery charge function operate in AP9101CK-ACTRG1?
When enabled (factory-set), the 0V charge function allows the IC to activate charging if the charger voltage applied to VDD reaches ≥1.2V, even when battery voltage is 0V. This bypasses the normal under-voltage lockout, enabling full recharge of deeply self-discharged cells without manual reset.
Can AP9101CK-ACTRG1 be used in automotive applications?
No - AP9101CK-ACTRG1 is not AEC-Q100 qualified and lacks automotive-grade screening, temperature range extension (−40°C to +105°C), or PPAP documentation. Diodes Incorporated offers separate AEC-Q100-qualified variants (e.g., AP9101CAx-x-xxxA) for automotive battery modules.
AP9101CK-ACTRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP9101CK-ACTRG1 FAQ
1.How can I place an order for AP9101CK-ACTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CK-ACTRG1 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 AP9101CK-ACTRG1 reliable?
The price and inventory of AP9101CK-ACTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CK-ACTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CK-ACTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CK-ACTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CK-ACTRG1?
AP9101CK-ACTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CK-ACTRG1 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 AP9101CK-ACTRG1?
For technical support, including AP9101CK-ACTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CK-ACTRG1 requirements.
6.How does Aetrix verify that AP9101CK-ACTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CK-ACTRG1 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 AP9101CK-ACTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CK-ACTRG1?
All AP9101CK-ACTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CK-ACTRG1, 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 AP9101CK-ACTRG1 part is unused and in its original packaging.
Return procedure for AP9101CK-ACTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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