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Diodes Incorporated AP9101CAK-CCTRG1
- Part No.:
- AP9101CAK-CCTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CAK-CCTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,043
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Product details
Overview
AP9101CAK-CCTRG1 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 0.095V ±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 and supports 0V battery charge functionality.
For engineers reviewing the AP9101CAK-CCTRG1 datasheet, AP9101CAK-CCTRG1 pinout, AP9101CAK-CCTRG1 application, or AP9101CAK-CCTRG1 equivalent, this device is selected for precision voltage monitoring, low-quiescent-current battery safety systems, and compact 1-cell Li+ pack designs requiring factory-configured protection thresholds and auto-release behavior.
Technical Context
The AP9101CAK-CCTRG1 implements independent high-accuracy voltage comparators for VDD–VSS (overcharge/overdischarge) and VM–VSS (discharge/charge overcurrent, short-circuit), each with configurable thresholds and ±20% delay time tolerance. Its logic circuitry enforces auto-release overcharge protection mode and uses internal level-shifting to drive CO/DO outputs across the full 1.5–5.5V supply range.
It integrates selectable power-down mode (enabled by default in AK variant), 0V battery charge permission, and an overvoltage charger detection circuit (8.0V ±2V trigger) that operates without delay. The VM pin serves dual roles: current-sense input and internal resistor network node (RVMD/RVMS) for status-dependent biasing during fault recovery.
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 - detects >1.5A fault current with 10mΩ sense resistor |
| Operating Current (Typ) | 3.0µA at 3.5V - enables multi-year shelf life in battery-powered IoT devices |
| Power-Down Current (Typ) | 0.01µA - reduces self-discharge impact during long-term storage |
| VM–VSS Short-Circuit Detection | 0.700V ±100mV - triggers sub-1µs DO shutdown for hard shorts |
| VDD–VM Absolute Max | 30V - supports robust operation under transient charger overvoltage events |
Pinout & Package
AP9101CAK-CCTRG1 is packaged in SOT25 (5-pin) with exposed pad for thermal performance and standard tape-and-reel delivery. Pin 1 marked with dot; pinout validated per Diodes DS37771 Rev. 8–3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current-sense and status input | Monitors voltage drop across sense resistor; enables fault classification (OC/SC) and auto-wake-up recovery |
| VDD | Positive supply input | Accepts 1.5–5.5V; powers internal circuitry and drives CO/DO outputs |
| VSS | Negative supply reference | System ground return; used as comparator reference for all voltage detection functions |
| DO | Discharge control output | Drives gate of external N-MOSFET to interrupt discharge path during overdischarge or overcurrent |
| CO | Charge control output | Drives gate of external N-MOSFET to interrupt charge path during overcharge, charge overcurrent, or charger overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed thresholds | Fixed VCU=4.375V, VDL=2.500V, VDOC=0.095V - eliminates external resistor trimming and calibration effort |
| 0V battery charge enable | Permits recharge of fully depleted cells without manual reset or external wake-up circuitry |
| No external timing capacitor | Built-in fixed delay circuit reduces BOM count and PCB area vs. discrete RC-based solutions |
| Auto-release overcharge mode | Automatically restores charge path when cell voltage drops below VCL=4.175V - avoids permanent lockout |
| High-voltage VM interface | Withstands 30V differential between VDD and VM - accommodates common-mode noise in high-side sensing |
Applications
| Smart Wearables | Bluetooth Headsets |
|---|---|
Use Scenario: Compact Li+ battery pack powering fitness tracker with multi-year shelf life requirement. IC Role / Device Role / Timing Role: Primary protection controller enforcing cell voltage limits and detecting microsecond-scale short circuits. Use Value: 0.01µA power-down current extends shelf life beyond 5 years; fixed timing eliminates capacitor aging drift. |
Use Scenario: Dual-cell (1S2P) Li+ pack in wireless earbuds with strict size constraints and fast-charge support. IC Role / Device Role / Timing Role: Fault monitor for both charge and discharge paths, coordinating with charger IC via VM feedback. Use Value: 0.095V discharge overcurrent threshold enables accurate 1.5A current limiting using 60mΩ sense resistor. |
| Portable Medical Sensors | Emergency Locator Beacons |
Use Scenario: Single-use disposable glucose monitor with sealed 1-cell Li+ battery and 3-year expiry. IC Role / Device Role / Timing Role: Safety supervisor ensuring no overcharge during factory programming and no overdischarge during field use. Use Value: ±25mV overcharge detection accuracy prevents premature cutoff while maintaining JEDEC-compliant cell stress limits. |
Use Scenario: GPS-enabled personal locator with infrequent activation but guaranteed first-use reliability after 7-year storage. IC Role / Device Role / Timing Role: Low-power protector enabling automatic recovery from overdischarge upon first charge event. Use Value: Auto-wake-up capability eliminates need for mechanical reset switch or external LDO enable circuit. |
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 0V charge function; requires external timing capacitor | Lacks auto-wake-up and 0V charge - unsuitable for long-storage medical disposables | Select only if cost sensitivity outweighs functional gaps and design simplicity requirements |
| Ricoh RP507K001B-TR-F | Lower operating current (1.8µA typ); supports 2-cell configuration; no overvoltage charger detection | Missing VOVCHG circuit - cannot protect against 12V automotive charger transients | Prefer for ultra-low-power 2S packs where charger overvoltage risk is absent |
Compared with S-8261AAL-M6T1U and RP507K001B-TR-F, AP9101CAK-CCTRG1 uniquely combines factory-set precision thresholds, 0V charge enable, overvoltage charger detection, and capacitor-free timing-making it optimal for space-constrained, long-shelf-life 1S Li+ applications demanding zero-field intervention.
Availability
AP9101CAK-CCTRG1 is available at Aetrix Electronics and suitable for smart wearables, Bluetooth headsets, portable medical sensors, and emergency locator beacons requiring stable component supply, long-term lifecycle assurance, and RoHS/Green compliance.
Supply support for AP9101CAK-CCTRG1 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 ICs for power management, signal integrity, and protection applications.
The AP9101C series belongs to Diodes' battery protection IC product line, designed specifically for high-accuracy, low-power, single-chip safety supervision of 1-cell lithium-ion and lithium-polymer battery packs.
FAQ
What is the function of the VM pin on AP9101CAK-CCTRG1?
The VM pin serves as the current-sense input for discharge/charge overcurrent and short-circuit detection, and also connects internally to resistor networks (RVMD/RVMS) that dynamically bias the pin during fault recovery. It enables the IC to distinguish between overdischarge and overcurrent states and supports auto-wake-up functionality when the battery is deeply discharged.
Does AP9101CAK-CCTRG1 support overvoltage protection for the charger input?
Yes. The AP9101CAK-CCTRG1 includes a dedicated overvoltage charger detection circuit that monitors the voltage between VDD and VM pins. When this voltage exceeds 8.0V (±2V), the CO pin is driven low to disable charging; release occurs at 7.3V (±2V) with no delay, providing immediate response to unsafe charger conditions.
Can AP9101CAK-CCTRG1 be used with a 2-cell battery pack?
No. AP9101CAK-CCTRG1 is specified exclusively for 1-cell Li+ or Li-polymer batteries, with absolute maximum VDD–VSS rating of 12V and operating supply range of 1.5–5.5V. For 2-cell applications, Diodes offers the AP9102 series, which supports up to 8.4V total pack voltage and includes dual-cell balancing logic.
How does the 0V battery charge function operate in AP9101CAK-CCTRG1?
When enabled (factory-set in AK variant), the 0V battery charge function allows the charger to initiate charging even when the battery voltage reads 0V due to self-discharge. This is achieved by internal circuitry that overrides the normal overdischarge lockout condition, permitting CO pin activation once charger voltage exceeds 1.2V at the VDD pin.
AP9101CAK-CCTRG1 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-CCTRG1 FAQ
1.How can I place an order for AP9101CAK-CCTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CAK-CCTRG1 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-CCTRG1 reliable?
The price and inventory of AP9101CAK-CCTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CAK-CCTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CAK-CCTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CAK-CCTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CAK-CCTRG1?
AP9101CAK-CCTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CAK-CCTRG1 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-CCTRG1?
For technical support, including AP9101CAK-CCTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CAK-CCTRG1 requirements.
6.How does Aetrix verify that AP9101CAK-CCTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CAK-CCTRG1 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-CCTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CAK-CCTRG1?
All AP9101CAK-CCTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CAK-CCTRG1, 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-CCTRG1 part is unused and in its original packaging.
Return procedure for AP9101CAK-CCTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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