My Inquiry
My Account
Diodes Incorporated AP9101CAK-ACTRG1
- Part No.:
- AP9101CAK-ACTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CAK-ACTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,324
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP9101CAK-ACTRG1 from Diodes Incorporated is a single-chip lithium-ion/polymer battery protection IC designed for 1-cell packs. It integrates overcharge (4.375V), overdischarge (2.500V), discharge overcurrent (0.095V), charge overcurrent (−0.095V), short-circuit (0.700V), and overvoltage charger (8.0V) detection with ±25mV voltage accuracy and fixed delay timing. It drives external N-channel MOSFETs via CO/DO pins and supports 0V battery charging and selectable power-down mode.
For engineers reviewing the AP9101CAK-ACTRG1 datasheet, AP9101CAK-ACTRG1 pinout, AP9101CAK-ACTRG1 application, or AP9101CAK-ACTRG1 equivalent, this device is selected for compact, low-power, high-accuracy battery safety in portable medical devices, Bluetooth headsets, and wearable electronics where precise cell voltage thresholds and ultra-low quiescent current (3.0µA typ) are critical.
Technical Context
The AP9101CAK-ACTRG1 implements independent analog comparators for VDD–VSS (cell voltage) and VM–VSS (current-sense voltage), each feeding into logic-controlled delay timers (tCU, tDL, tDOC, tSHORT, tCOC). Its internal level-shifting circuitry enables direct drive of high-side charge MOSFET gates despite VM floating during discharge.
It features factory-programmed protection thresholds: overcharge detection at 4.375V ±25mV with 0.200V hysteresis, overdischarge at 2.500V ±35mV with 0.400V hysteresis, and discharge overcurrent at 0.095V ±15mV - all calibrated at +25°C and specified across −40°C to +85°C operating range.
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 - prevents deep discharge damage to Li+ cell anode structure |
| Discharge Overcurrent Threshold | 0.095V ±15mV - triggers cutoff at ~95mV across sense resistor, enabling 100mA–5A range with common Rsense |
| Quiescent Current (Op Mode) | 3.0µA typ @ 3.5V - extends battery shelf life in standby without compromising responsiveness |
| VM–VSS Input Range | −0.3V to 5.5V - accommodates bidirectional current sensing and reverse-polarity transient tolerance |
| CO/DO Output Drive | 6kΩ typ pull-up/pull-down - directly switches standard N-MOSFET gates without external buffers |
| Operating Temperature | −40°C to +85°C - validated for consumer and industrial portable equipment environments |
Pinout & Package
AP9101CAK-ACTRG1 is packaged in SOT25 (5-pin) - a surface-mount, lead-free, RoHS-compliant package with 0.95mm pitch and thermal pad exposed on bottom for enhanced dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current-sense input | Monitors voltage drop across external sense resistor between P− and battery negative; enables overcurrent and short-circuit detection |
| VDD | Positive supply input | Connects to battery positive terminal; powers internal circuitry and provides reference for all voltage comparators |
| VSS | Negative supply reference | Ground return for internal logic and comparator references; tied to battery negative |
| DO | Discharge control output | Drives gate of discharge N-MOSFET; goes low to disconnect load during overdischarge or overcurrent events |
| CO | Charge control output | Drives gate of charge N-MOSFET; goes low to block charging during overcharge, overvoltage charger, or charge overcurrent |
Key Features
| Feature | Design Value |
|---|---|
| Fixed internal delay timers | Eliminates need for external RC timing components - reduces BOM count and layout area by ≥2 parts |
| Selectably enabled 0V battery charge | Allows safe reactivation of deeply discharged cells (0V) using standard CC/CV chargers without manual intervention |
| Programmable power-down mode | Reduces current to 0.1µA typ when activated - extends storage life of sealed battery packs |
| High-voltage CMOS process | Supports 30V max differential between VDD and VM - withstands charger transients and reverse-connection stress |
| ±25mV overcharge voltage accuracy | Enables tighter state-of-charge window control versus typical ±50mV competitors, improving usable capacity by ~1.5% |
Applications
| Wireless Earbuds | Portable ECG Monitors |
|---|---|
Use Scenario: Compact, sealed 1-cell Li+ pack powering dual Bluetooth audio channels and touch interface. IC Role / Device Role / Timing Role: Primary protection controller monitoring cell voltage, load current, and charger input; asserts DO/CO within 12ms (tDL) or 200ns (tSHORT) to prevent thermal runaway. Use Value: Prevents field failures from overdischarge-induced copper dissolution and ensures >500-cycle lifetime under aggressive usage patterns. |
Use Scenario: Battery-powered clinical-grade ECG sensor worn continuously for 72-hour ambulatory monitoring. IC Role / Device Role / Timing Role: Safety supervisor enforcing strict 2.500V undervoltage lockout and 0.095V discharge overcurrent limit to avoid false arrhythmia alarms caused by voltage sag. Use Value: Guarantees uninterrupted data capture by eliminating brownout resets while maintaining FDA-required fault coverage for battery-related hazards. |
| Smart Pen Digitizers | Rechargeable LED Light Strips |
Use Scenario: Precision stylus with pressure-sensitive tip, BLE connectivity, and capacitive button array powered by 300mAh Li+ cell. IC Role / Device Role / Timing Role: Dual-function protector: blocks charging above 4.375V to preserve cathode integrity and cuts discharge at 2.500V to avoid SEI layer collapse during sleep mode. Use Value: Extends usable battery energy by 8% versus looser thresholds and eliminates "phantom shutdown" below 2.8V nominal. |
Use Scenario: Flexible, USB-C rechargeable LED strip with integrated microcontroller and PWM dimming. IC Role / Device Role / Timing Role: Fault manager detecting short-circuit events (0.700V threshold) and disabling DO within 200ns to protect LEDs and driver FETs from avalanche failure. Use Value: Enables Class II double-insulated design without external fuse - reducing cost and enabling IP67-rated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5602L001AA-TR | Fixed 4.250V overcharge threshold; no 0V charge function; 5.5µA operating current | Lacks programmable thresholds and 0V recovery - suitable only for legacy designs with fixed chemistry | Choose only if redesign is prohibited and existing R5602-based PCB layout must be reused |
| BD1400GUL | Integrated charge/discharged MOSFETs; 6-pin WLCSP; 2.0µA quiescent current | Higher integration but limited to ≤2A continuous load; no overvoltage charger detection | Select when board space is constrained and load current remains <1.5A; verify thermal derating in enclosed housing |
Compared with R5602L001AA-TR and BD1400GUL, AP9101CAK-ACTRG1 offers superior flexibility via factory-configurable thresholds, essential overvoltage charger protection, and guaranteed 0V battery recovery - making it optimal for next-generation portable devices requiring long-term reliability and multi-chemistry support.
Availability
AP9101CAK-ACTRG1 is available at Aetrix Electronics and suitable for wireless earbuds, portable ECG monitors, and smart pen digitizers requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for AP9101CAK-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and protection applications.
The AP9101C series belongs to Diodes' Battery Protection IC product line, engineered specifically for high-accuracy, low-quiescent-current safety supervision in space-constrained 1-cell lithium-ion and lithium-polymer battery packs.
FAQ
What is the function of the VM pin on AP9101CAK-ACTRG1?
The VM pin serves as the current-sense input, measuring the voltage difference between the battery's P− node and VSS to detect discharge overcurrent, charge overcurrent, and short-circuit conditions. It operates across −0.3V to 5.5V and interfaces directly with the external sense resistor without requiring amplification or level shifting.
Does AP9101CAK-ACTRG1 support automatic recovery from overdischarge without a charger?
No - AP9101CAK-ACTRG1 uses the power-down mode variant (indicated by blank suffix in ordering code), which requires charger connection to exit overdischarge status. Auto-wake-up functionality is only available in AP9101CA variants (e.g., AP9101CAA-xxx), not in this part number.
Can AP9101CAK-ACTRG1 be used with 2-cell battery packs?
No - AP9101CAK-ACTRG1 is strictly rated for 1-cell Li+ or Li-polymer operation, with absolute maximum VDD–VSS of 12V and recommended operating range of 1.5V–5.5V. For 2-cell stacks (up to 8.4V), Diodes recommends the AP9211 or AP9221 series, which support higher voltage domains and dual-cell balancing interfaces.
How does the overvoltage charger detection feature work in AP9101CAK-ACTRG1?
The overvoltage charger detection monitors the voltage between VDD and VM pins. When it exceeds 8.0V (±2V), the CO pin is driven low immediately - no delay - to disable the charge MOSFET. Recovery occurs when the voltage falls below 7.3V (±2V), restoring CO high. This protects against faulty or mismatched chargers without relying on external Zener clamps.
AP9101CAK-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
AP9101CAK-ACTRG1 FAQ
1.How can I place an order for AP9101CAK-ACTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CAK-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 AP9101CAK-ACTRG1 reliable?
The price and inventory of AP9101CAK-ACTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CAK-ACTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CAK-ACTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CAK-ACTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CAK-ACTRG1?
AP9101CAK-ACTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CAK-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 AP9101CAK-ACTRG1?
For technical support, including AP9101CAK-ACTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CAK-ACTRG1 requirements.
6.How does Aetrix verify that AP9101CAK-ACTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CAK-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 AP9101CAK-ACTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CAK-ACTRG1?
All AP9101CAK-ACTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CAK-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 AP9101CAK-ACTRG1 part is unused and in its original packaging.
Return procedure for AP9101CAK-ACTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP9101CAK-ACTRG1 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…
