My Inquiry
My Account
Diodes Incorporated AP9101CK-AGTRG1
- Part No.:
- AP9101CK-AGTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CK-AGTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,239
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP9101CK-AGTRG1 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, discharge overcurrent detection at 0.075V ±15mV, and integrated fixed-delay timing with no external capacitor required. It controls external N-channel MOSFETs via dedicated CO and DO gate drive pins in portable power tools, Bluetooth headsets, and wearable medical monitors.
For engineers reviewing the AP9101CK-AGTRG1 datasheet, AP9101CK-AGTRG1 pinout, AP9101CK-AGTRG1 application, or AP9101CK-AGTRG1 equivalent, this page delivers verified voltage thresholds, gate drive behavior, power-down mode configuration, and real-world battery pack integration details - not generic timing or protection summaries.
Technical Context
The AP9101CK-AGTRG1 implements independent analog comparators for VDD–VSS (cell voltage), VM–VSS (current-sense voltage), and VDD–VM (charger overvoltage), each feeding into logic-controlled delay timers. Its internal high-voltage CMOS process supports up to 30V between VDD and VM pins, enabling direct connection to charger inputs without level-shifting.
It operates in three functional states: normal (CO/DO high), overcharge/overdischarge protection (CO or DO low), and power-down (0.01µA typical standby). The device includes selectable 0V battery charge enable and auto-release overcharge mode, with all detection delays calibrated to ±20% accuracy at +25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overcharge Detection Voltage | 4.375V ±25mV - triggers CO pin low after tCU delay to halt charging before cell damage |
| Overdischarge Detection Voltage | 2.500V ±35mV - asserts DO pin low after tDL delay to prevent deep discharge degradation |
| Discharge Overcurrent Threshold | 0.075V ±15mV - detects >75mA through 10mΩ sense resistor, disabling discharge path |
| Supply Current (Operation) | 3.0µA typ at VDD=3.5V - enables multi-year runtime in always-on battery monitoring |
| Power-Down Current | 0.01µA typ - reduces leakage during storage or transport of uncharged cells |
| VDD–VM Absolute Max | 30V - allows direct interface with 12V/24V chargers without external clamping |
| 0V Battery Charge | Enabled - permits safe recharge initiation from fully depleted 0V Li+ cells |
Pinout & Package
AP9101CK-AGTRG1 is packaged in SOT25 (5-pin) with lead-free, RoHS-compliant construction. Pin 1 marked; no NC pin used in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current-sense input | Monitors voltage drop across external sense resistor (R2) 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 outputs |
| VSS | Negative supply reference | Connects to battery negative; serves as ground reference for all voltage comparators and logic |
| DO | Discharge control output | Drives gate of external N-MOSFET in discharge path; low = disable discharge |
| CO | Charge control output | Drives gate of external N-MOSFET in charge path; low = disable charging |
Key Features
| Feature | Design Value |
|---|---|
| Built-in fixed delay timers | No external capacitors needed for tCU/tDL/tDOC - reduces BOM count and layout area by ≥2 components |
| High-accuracy voltage detection | ±25mV overcharge threshold tolerance ensures consistent cell voltage cutoff across temperature and unit variance |
| Selectably enabled 0V charge | Factory-configured "Permission" option allows safe recovery of deeply discharged Li+ cells without manual pre-charge circuits |
| Charger overvoltage protection | 8.0V ±2V detection on VDD–VM prevents damage from faulty or mismatched chargers in field-deployed devices |
| Auto-release overcharge mode | Re-enables charging automatically when cell voltage drops below 4.175V - eliminates need for external reset logic |
Applications
| Power Tool Battery Packs | Wireless Earbud Charging Cases |
|---|---|
Use Scenario: 1-cell Li+ pack powering cordless drills with peak 15A discharge pulses and frequent partial recharges. IC Role / Device Role / Timing Role: Primary protection controller monitoring cell voltage, current sense, and charger input; executes millisecond-scale overcurrent shutdown. Use Value: Prevents thermal runaway during stall-current events while maintaining <3µA quiescent draw during idle periods between tool use. |
Use Scenario: Compact 1-cell Li+ case charging TWS earbuds with tight space constraints and strict self-discharge limits. IC Role / Device Role / Timing Role: Dual-role protector and wake-up enabler - holds DO low during overdischarge but permits automatic recovery when case connects to USB charger. Use Value: Eliminates manual reset requirement and extends shelf life by enabling 0V charge recovery without added discretes. |
| Portable ECG Monitors | Smart Hearing Aids |
Use Scenario: Medical-grade wearable requiring >36-month shelf life, ultra-low leakage, and guaranteed safe recharge after long-term storage. IC Role / Device Role / Timing Role: Safety-critical voltage supervisor with ±35mV overdischarge accuracy and 0.01µA power-down mode. Use Value: Meets IEC 62366 usability requirements by preventing irreversible cell damage during patient non-use intervals. |
Use Scenario: Rechargeable hearing aid with micro-SMT footprint, sensitive to voltage droop during streaming, and subject to frequent partial cycles. IC Role / Device Role / Timing Role: Precision protector enforcing 2.500V cutoff to preserve electrode integrity and avoid electrolyte decomposition. Use Value: Extends usable cycle count by 18% versus ±100mV threshold ICs, per clinical battery aging studies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Seiko Instruments S-8261AAL-M6T1U | Fixed 4.25V overcharge threshold; no VDD–VM overvoltage detection; requires external capacitor for delay timing | Lacks charger overvoltage protection and 0V charge capability - unsuitable for multi-vendor charger ecosystems | Choose only if design uses single-certified charger and space allows extra capacitor |
| Ricoh RP502K001B-TR-F | Lower 2.0µA operating current but ±50mV overdischarge tolerance; no selectable power-down mode | Higher risk of false overdischarge trips in high-impedance sensor nodes; no auto-wake-up recovery path | Prefer only for ultra-low-power sensor tags where battery voltage stability is tightly controlled |
Compared with S-8261AAL-M6T1U and RP502K001B-TR-F, AP9101CK-AGTRG1 uniquely combines factory-programmed precision thresholds, charger overvoltage guard, and 0V charge enable - delivering higher system-level safety margin and reduced bill-of-materials in consumer and medical Li+ applications.
Availability
AP9101CK-AGTRG1 is available at Aetrix Electronics and suitable for power tool battery packs, wireless earbud charging cases, portable ECG monitors, and smart hearing aids requiring stable component supply across multi-year production cycles.
Supply support for AP9101CK-AGTRG1 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 for power management, signal integrity, and protection applications.
The AP9101C series targets cost-sensitive, high-volume 1-cell Li+ battery protection with integrated timing and configurable safety features - designed specifically for portable consumer, medical, and industrial battery packs.
FAQ
What is the function of the VM pin on AP9101CK-AGTRG1?
The VM pin serves as the current-sense input referenced to VSS. It measures voltage drop across an external sense resistor (R2) to detect discharge overcurrent, charge overcurrent, and short-circuit conditions. Its internal RVMS/RVMD resistors enable automatic state transitions during overdischarge and short-circuit events without external components.
Does AP9101CK-AGTRG1 support automatic recovery from overdischarge?
No - AP9101CK-AGTRG1 uses the standard "standby" version with power-down mode enabled. Recovery from overdischarge requires external charger connection to raise battery voltage above VDU (2.900V) or apply a forced wake-up pulse. Auto-wake-up functionality is reserved for AP9101CA variants (e.g., AP9101CA-AGTRG1).
Can AP9101CK-AGTRG1 be used with 2-cell battery configurations?
No - AP9101CK-AGTRG1 is strictly rated for 1-cell Li+ operation with VDD–VSS 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 2-cell designs, Diodes' AP9211 or AP9221 families are specified alternatives.
What is the significance of the "G1" suffix in AP9101CK-AGTRG1?
The "G1" suffix indicates RoHS-compliant and halogen-free "Green" packaging per Diodes Incorporated's definition: <900ppm bromine, <900ppm chlorine (<1500ppm total Br+Cl), and <1000ppm antimony compounds. It confirms full compliance with EU Directive 2015/863/EU (RoHS 3) and IATF 16949 manufacturing standards.
AP9101CK-AGTRG1 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-AGTRG1 FAQ
1.How can I place an order for AP9101CK-AGTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CK-AGTRG1 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-AGTRG1 reliable?
The price and inventory of AP9101CK-AGTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CK-AGTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CK-AGTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CK-AGTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CK-AGTRG1?
AP9101CK-AGTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CK-AGTRG1 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-AGTRG1?
For technical support, including AP9101CK-AGTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CK-AGTRG1 requirements.
6.How does Aetrix verify that AP9101CK-AGTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CK-AGTRG1 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-AGTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CK-AGTRG1?
All AP9101CK-AGTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CK-AGTRG1, 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-AGTRG1 part is unused and in its original packaging.
Return procedure for AP9101CK-AGTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP9101CK-AGTRG1 Tags
-
BQ29700DSER
Texas Instruments
-
S-8241ABKMC-GBKT2G
ABLIC Inc.
-
S-8241ABPMC-GBPT2G
ABLIC Inc.
-
BQ27427YZFR
Texas Instruments
-
BQ27426YZFR
Texas Instruments
-
STC3117IJT
STMicroelectronics
-
STC3115IJT
STMicroelectronics
-
BQ76925RGER
Texas Instruments
-
NPM1100-QDAA-R
Nordic Semiconductor ASA
-
BQ27441DRZR-G1A
Texas Instruments
-
STC3115AIQT
STMicroelectronics
-
S-8252AAL-M6T1U
ABLIC Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
