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Diodes Incorporated AP9101CAK-CGTRG1
- Part No.:
- AP9101CAK-CGTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CAK-CGTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
AP9101CAK-CGTRG1 from Diodes Incorporated is a single-chip lithium-ion/polymer battery protection IC with integrated voltage and current monitoring, designed for 1-cell packs. It provides overcharge (4.375V ±25mV), overdischarge (2.500V ±35mV), discharge overcurrent (0.150V ±15mV), charge overcurrent (−0.150V ±15mV), short-circuit (0.700V ±100mV), and overvoltage charger (8.0V ±2V) protection, with fixed delay timing and 0V battery charge capability.
For engineers reviewing the AP9101CAK-CGTRG1 datasheet, AP9101CAK-CGTRG1 pinout, AP9101CAK-CGTRG1 application, or AP9101CAK-CGTRG1 equivalent, this device supports precise, low-power battery safety control in portable electronics where component count reduction, thermal stability across −40°C to +85°C, and RoHS-compliant SOT25 packaging are critical design requirements.
Technical Context
The AP9101CAK-CGTRG1 implements independent analog comparators for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), with dedicated hysteresis circuits for overcharge (0.200V) and overdischarge (0.400V) release thresholds. Its logic block drives high-side CO and low-side DO FET gates using internal level-shifted drivers capable of 30V VDD–VM tolerance.
It integrates fixed-time detection delays (tCU = 1.0s typ, tDOC = 12ms typ, tSHORT = 10µs typ) without external capacitors, and includes selectable power-down mode (0.1µA standby) and factory-configured 0V battery charge enable-both implemented via internal fuse options rather than external pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overcharge Detection Voltage | 4.375V ±25mV at +25°C - sets precise upper cell voltage limit before disabling charge path |
| Overdischarge Detection Voltage | 2.500V ±35mV at +25°C - prevents deep discharge damage to Li+ anode structure |
| Discharge Overcurrent Threshold | 0.150V ±15mV - corresponds to ~150mΩ sense resistor at 1A load, enabling accurate current cutoff |
| Operating Current (Typ) | 3.0µA at VDD=3.5V - enables multi-year battery shelf life in always-connected protection circuits |
| VDD–VM Absolute Max | 30V - supports direct connection to unregulated chargers or high-voltage boost stages without external clamping |
| Package | SOT25 - 5-pin, 2.9mm × 1.6mm surface-mount package compatible with standard reflow profiles |
| 0V Battery Charge | Enabled - allows recovery of fully depleted cells (<0.45V) using external charger without manual pre-charge |
Pinout & Package
SOT25 package: 5-pin, small-outline transistor outline with gull-wing leads; pin 1 marked; moisture sensitivity level (MSL) 1 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current-sense input | Differential input referenced to VSS; monitors voltage drop across external sense resistor during charge/discharge |
| VDD | Positive supply input | Connects to battery positive terminal; powers internal circuitry and drives CO/DO gate outputs |
| VSS | Negative supply reference | System ground reference; common return for all internal comparators and logic |
| DO | Discharge control output | Drives gate of external N-channel MOSFET in discharge path; low = disable discharge |
| CO | Charge control output | Drives gate of external N-channel MOSFET in charge path; low = disable charging |
Key Features
| Feature | Design Value |
|---|---|
| Fixed-time protection delays | No external capacitor required - reduces BOM count and PCB area by eliminating timing RC networks |
| ±25mV overcharge detection accuracy | Enables tight voltage window control (e.g., 4.375V/4.175V) to maximize usable capacity while preventing LiCoO₂ degradation |
| 0.1µA power-down current | Extends shelf life of sealed battery packs by minimizing self-discharge contribution from protection IC |
| 30V VDD–VM rating | Eliminates need for external Zener clamps when interfacing with high-voltage USB PD or automotive chargers |
| Factory-configurable 0V charge | Permits safe recharge of deeply discharged cells without requiring external wake-up circuitry or manual intervention |
Applications
| Smartphone Battery Packs | Wireless Earbud Cells |
|---|---|
Use Scenario: Protection of 3.7V Li-ion cells in compact, sealed consumer devices with no user-serviceable access. IC Role / Device Role / Timing Role: Primary safety monitor that disables charge/discharge paths within 1.0s of overvoltage and 12ms of overcurrent events. Use Value: Prevents thermal runaway during fast charging and extends cycle life by enforcing strict 2.500V/4.375V voltage boundaries. |
Use Scenario: Ultra-low-power protection for dual 1S battery modules inside Bluetooth earbuds with <10mm³ volume constraint. IC Role / Device Role / Timing Role: Always-on voltage/current supervisor consuming only 3.0µA, enabling >1-year shelf life before first use. Use Value: Enables factory-sealed units with guaranteed 0V recovery capability, reducing warranty returns from "dead on arrival" units. |
| Power Tool Battery Modules | Medical Wearable Sensors |
Use Scenario: High-reliability protection for 1S Li-ion packs subjected to repeated 3C discharge pulses and intermittent fast charging. IC Role / Device Role / Timing Role: Dual-threshold overcurrent detector (0.150V discharge / −0.150V charge) with 10µs short-circuit response. Use Value: Prevents MOSFET failure during motor stall conditions while maintaining compatibility with existing 5mΩ sense resistors. |
Use Scenario: Safety-critical backup power for Class II medical sensors requiring AEC-Q200-aligned reliability and traceable sourcing. IC Role / Device Role / Timing Role: RoHS- and halogen-free protection IC qualified for IATF 16949 manufacturing with full lot traceability. Use Value: Meets ISO 13485 production requirements through Diodes' certified facilities and green material compliance (Br+Cl <1500ppm). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5460N258AA-TR-FE | Fixed 4.25V overcharge threshold; no 0V charge function; 1.5µA operating current | Lacks configurable release hysteresis and overvoltage charger detection (8.0V) | Choose for cost-sensitive, non-recoverable battery designs where 0V charge is unnecessary |
| BD14000FVJ-E2 | Integrated charge/discharged MOSFETs; 5.5V max VDD; 12-bit ADC for telemetry | Higher integration but larger 8-pin TSSOP package and 15µA quiescent current | Choose when system-level telemetry or space-constrained board layout outweighs discrete MOSFET flexibility |
Compared with R5460N258AA and BD14000FVJ, the AP9101CAK-CGTRG1 delivers superior voltage accuracy (±25mV vs ±50mV), lower operating current (3.0µA vs 1.5–15µA), and unique overvoltage charger detection-making it optimal for high-precision, long-shelf-life 1S Li+ systems requiring minimal external components.
Availability
AP9101CAK-CGTRG1 is available at Aetrix Electronics and suitable for smartphone battery packs, wireless earbud cells, and medical wearable sensors requiring stable component supply, full RoHS/halogen-free compliance, and guaranteed 0V battery recovery functionality.
Supply support for AP9101CAK-CGTRG1 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, manufacturing, and distribution operations across Asia, the Americas, and Europe.
The AP9101C belongs to Diodes' battery protection IC product line, engineered specifically for high-accuracy, low-quiescent-current safety monitoring in compact 1-cell lithium-ion and lithium-polymer battery packs used in portable electronics.
FAQ
What is the function of the VM pin on the AP9101CAK-CGTRG1?
The VM pin serves as the current-sense differential input referenced to VSS. It measures the voltage drop across an external sense resistor to detect discharge overcurrent (≥0.150V), charge overcurrent (≤−0.150V), and short-circuit conditions (≥0.700V). Internal resistors RVMD and RVMS connect dynamically during fault states to pull VM toward VDD or VSS, enabling automatic recovery behavior without external circuitry.
Does the AP9101CAK-CGTRG1 support overvoltage protection for the charger input?
Yes. The AP9101CAK-CGTRG1 includes a dedicated overvoltage charger detection circuit that monitors the voltage between VDD and VM pins. When this exceeds 8.0V (±2V), the CO pin is driven low to disable charging; recovery occurs when the voltage falls below 7.3V (±2V). This function operates without delay and protects against faulty or mismatched chargers.
How does the 0V battery charge feature operate, and is it enabled on this variant?
The 0V battery charge function is factory-configured and enabled on AP9101CAK-CGTRG1 (indicated by "K" in ordering code). When battery voltage is near 0V, the IC permits external charger current to flow once VDD reaches ≥1.2V, allowing safe recovery without manual pre-charge. Devices without this option inhibit charging below 0.45V to prevent unsafe plating.
Can the AP9101CAK-CGTRG1 be used with 2-cell battery configurations?
No. The AP9101CAK-CGTRG1 is strictly designed for 1-cell Li+ or Li-polymer batteries with VDD–VSS operating range of 1.5V to 5.5V. Its overcharge detection threshold (4.375V) and absolute maximum VDD–VSS rating (12V) do not support series-connected cells. For 2S applications, Diodes recommends the AP9211 or AP9221 families with higher voltage ratings and dual-cell monitoring.
AP9101CAK-CGTRG1 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
AP9101CAK-CGTRG1 FAQ
1.How can I place an order for AP9101CAK-CGTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CAK-CGTRG1 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 AP9101CAK-CGTRG1 reliable?
The price and inventory of AP9101CAK-CGTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CAK-CGTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CAK-CGTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CAK-CGTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CAK-CGTRG1?
AP9101CAK-CGTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CAK-CGTRG1 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 AP9101CAK-CGTRG1?
For technical support, including AP9101CAK-CGTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CAK-CGTRG1 requirements.
6.How does Aetrix verify that AP9101CAK-CGTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CAK-CGTRG1 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 AP9101CAK-CGTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CAK-CGTRG1?
All AP9101CAK-CGTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CAK-CGTRG1, 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 AP9101CAK-CGTRG1 part is unused and in its original packaging.
Return procedure for AP9101CAK-CGTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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