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Diodes Incorporated AP9101CK-AYTRG1
- Part No.:
- AP9101CK-AYTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CK-AYTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:1,094
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Product details
Overview
AP9101CK-AYTRG1 from Diodes Incorporated is a single-chip lithium-ion battery protection IC for 1-cell packs, featuring overcharge detection at 4.280V ±25mV, overdischarge detection at 2.800V ±35mV, discharge overcurrent detection at 0.100V ±15mV, and built-in fixed delay timing with no external capacitor required. It controls external N-channel MOSFETs via DO (discharge gate) and CO (charge gate) to enforce safety limits in portable power tools and Bluetooth headsets.
For engineers reviewing the AP9101CK-AYTRG1 datasheet, AP9101CK-AYTRG1 pinout, AP9101CK-AYTRG1 application, or AP9101CK-AYTRG1 equivalent, this device supports precise voltage threshold selection, selectable 0V battery charge function, auto-release overcharge protection mode, and operates across –40°C to +85°C with ultra-low 3.0µA typical operating current.
Technical Context
The AP9101CK-AYTRG1 integrates high-accuracy analog comparators for six independent protection conditions-overcharge, overdischarge, discharge/charge overcurrent, short-circuit, and overvoltage charger-with ±25mV to ±100mV accuracy depending on condition. Its internal logic enforces strict state transitions: overcharge triggers CO low after 1.0s tCU delay (±20%), while short-circuit detection responds in ≤1.4µs tSHORT (±20%).
It uses a high-voltage CMOS process enabling 30V VDD-to-VM tolerance, supports dual operation modes (power-down or auto-wake-up), and includes factory-configurable options including 0V battery charge enable and overcharge release behavior-all without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overcharge Detection Voltage | 4.280V ±25mV - sets precise upper cell voltage limit before disabling charge path |
| Overdischarge Detection Voltage | 2.800V ±35mV - prevents deep discharge damage by cutting discharge path at defined low-voltage threshold |
| Discharge Overcurrent Threshold | 0.100V ±15mV - detects excessive load current via sense resistor voltage drop, triggering DO low |
| Operating Current (Typ) | 3.0µA at VDD=3.5V - enables multi-year runtime in battery-powered standby systems |
| Power-Down Current (Typ) | 0.01µA - reduces leakage during storage or transport when battery is disconnected |
| VDD–VM Absolute Max | 30V - withstands transient charger spikes without latch-up or damage |
| 0V Battery Charge | Enabled - allows safe reactivation of fully depleted cells using external charger |
Pinout & Package
AP9101CK-AYTRG1 is packaged in SOT25 (5-pin) with lead-free, RoHS-compliant construction. Pin 1 marked with dot; pinout matches standard SOT25 top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current Sense Input | Monitors voltage drop across external sense resistor to detect charge/discharge overcurrent and short-circuit events |
| VDD | Positive Supply Input | Connects to battery positive terminal; powers internal circuitry and drives CO/DO gate outputs |
| VSS | Negative Supply Reference | Ground reference for all internal comparators and logic; tied to battery negative |
| DO | Discharge Control Output | Drives gate of external discharge MOSFET; goes low to disable discharge path during overdischarge or overcurrent |
| CO | Charge Control Output | Drives gate of external charge MOSFET; goes low to disable charge path during overcharge, overvoltage charger, or charge overcurrent |
Key Features
| Feature | Design Value |
|---|---|
| Fixed Delay Timing | No external capacitor needed - eliminates BOM cost and layout sensitivity for tCU/tDL/tDOC delays |
| Selectable Power-Down Mode | Factory-configured option enables <0.01µA sleep current for long-term storage without self-discharge acceleration |
| 0V Battery Charge Function | Permits safe recharge initiation even when cell voltage drops to 0V due to shelf depletion |
| Overvoltage Charger Detection | 8.0V ±2V threshold protects against faulty chargers by disabling CO immediately upon overvoltage event |
| High-Voltage VM Interface | Withstands 30V differential between VDD and VM - accommodates wide-range charger inputs and noisy battery paths |
Applications
| Power Tools | Wireless Headsets |
|---|---|
|
Use Scenario: Cordless drill with 1-cell Li+ pack subjected to high-current bursts and thermal cycling. IC Role / Device Role / Timing Role: Primary protection controller enforcing overcurrent cutoff within 1.4µs during motor stall, and overdischarge shutdown at 2.800V to preserve cycle life. Use Value: Prevents MOSFET failure and cell venting under sustained 20A+ loads while maintaining <3µA quiescent draw during idle. |
Use Scenario: Compact Bluetooth headset requiring compact battery solution with zero-volt recovery capability. IC Role / Device Role / Timing Role: Enables automatic reactivation after full self-discharge during shelf storage, using factory-enabled 0V charge function. Use Value: Eliminates need for manual reset or special charger protocols, improving end-user experience and reducing returns. |
| Medical Wearables | Smart Locks |
|
Use Scenario: FDA-classified wearable glucose monitor powered by sealed 1-cell Li+ battery. IC Role / Device Role / Timing Role: Ensures fail-safe overcharge cutoff at 4.280V ±25mV with auto-release behavior to avoid permanent lockout after transient overvoltage. Use Value: Meets IEC 62368-1 battery safety requirements without external supervision circuitry. |
Use Scenario: Battery-operated smart door lock exposed to temperature extremes and infrequent use. IC Role / Device Role / Timing Role: Maintains <0.01µA power-down current during 6-month storage while retaining ability to wake on charger connection. Use Value: Extends shelf life and field deployment window without compromising first-use reliability. |
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 |
|---|---|---|---|
| R5460N282AD-TR | Fixed 2.8V overdischarge threshold only; no programmable VCU/VDL; requires external capacitor for delay timing | Lacks 0V charge enable and overvoltage charger detection; suitable only for cost-sensitive, non-automotive designs | Choose if BOM simplification outweighs precision and feature flexibility |
| BD7502FJ-E2 | Higher 5.5V max VDD; ±50mV overcharge accuracy; no selectable power-down mode; 1.5µA typical ICC | Supports wider supply range but omits 0V charge and overvoltage charger monitoring functions | Prefer when system operates near 5V rail and ultra-low sleep current is not required |
Compared with R5460N282AD-TR and BD7502FJ-E2, AP9101CK-AYTRG1 delivers tighter voltage thresholds, integrated timing, and configurable safety features-enabling robust protection in space-constrained, long-life consumer and industrial battery packs without external timing components or firmware intervention.
Availability
AP9101CK-AYTRG1 is available at Aetrix Electronics and suitable for power tools, wireless headsets, medical wearables, and smart locks requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/Green compliance.
Supply support for AP9101CK-AYTRG1 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 manufacturer specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and the US.
The AP9101C series targets compact, high-reliability battery protection in portable electronics, emphasizing precision voltage sensing, ultra-low power consumption, and factory-configurable safety parameters for 1-cell Li+ systems.
FAQ
What is the function of the VM pin on AP9101CK-AYTRG1?
The VM pin serves as the current-sense input that monitors voltage drop across an external sense resistor between the battery's P– terminal and ground. It enables detection of discharge overcurrent, charge overcurrent, and short-circuit conditions by comparing the VM–VSS voltage against internal thresholds like VDOC (0.100V) and VSHORT (0.500V), with response times as fast as 1.4µs.
Does AP9101CK-AYTRG1 support overvoltage protection for the charger input?
Yes. The device includes a dedicated overvoltage charger detection circuit monitoring the VDD–VM differential. When this voltage exceeds 8.0V (±2V), the CO pin is driven low immediately-without delay-to disable the charge MOSFET. Release occurs when the differential falls below 7.3V (±2V), also with no delay, providing direct hardware-level protection against faulty or mismatched chargers.
How does the 0V battery charge function operate in AP9101CK-AYTRG1?
This function is factory-enabled and allows the IC to activate charging even when the connected Li+ cell has fully self-discharged to 0V. Upon charger connection, the device wakes and permits current flow through the CO-controlled MOSFET once the charger voltage exceeds 1.2V, enabling safe recovery without manual intervention or external reset circuitry.
Can AP9101CK-AYTRG1 be used in automotive applications?
No. While the device operates across –40°C to +85°C and meets RoHS/Green standards, it is not qualified to AEC-Q100 or manufactured in IATF 16949-certified facilities. Diodes Incorporated explicitly states that automotive-grade variants require separate qualification and PPAP documentation-this part is intended for industrial, medical, and consumer portable electronics only.
AP9101CK-AYTRG1 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-AYTRG1 FAQ
1.How can I place an order for AP9101CK-AYTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CK-AYTRG1 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-AYTRG1 reliable?
The price and inventory of AP9101CK-AYTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CK-AYTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CK-AYTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CK-AYTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CK-AYTRG1?
AP9101CK-AYTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CK-AYTRG1 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-AYTRG1?
For technical support, including AP9101CK-AYTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CK-AYTRG1 requirements.
6.How does Aetrix verify that AP9101CK-AYTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CK-AYTRG1 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-AYTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CK-AYTRG1?
All AP9101CK-AYTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CK-AYTRG1, 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-AYTRG1 part is unused and in its original packaging.
Return procedure for AP9101CK-AYTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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