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Diodes Incorporated AP9101CAK-BNTRG1
- Part No.:
- AP9101CAK-BNTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CAK-BNTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:4,706
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Product details
Overview
AP9101CAK-BNTRG1 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 0.150V ±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 charging and selectable power-down mode.
For engineers reviewing the AP9101CAK-BNTRG1 datasheet, AP9101CAK-BNTRG1 pinout, AP9101CAK-BNTRG1 application, or AP9101CAK-BNTRG1 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-BNTRG1 implements independent analog comparators for VDD–VSS (cell voltage), VM–VSS (current-sense voltage), and VDD–VM (charger overvoltage), each with dedicated hysteresis and delay timers. Its logic circuitry enforces auto-release overcharge protection and supports both power-down and auto-wake-up operation modes via factory configuration.
It uses high-voltage CMOS process technology enabling 30V tolerance between VDD and VM pins, while internal resistors RVMD (300kΩ typ) and RVMS (30kΩ typ) enable overdischarge and short-circuit recovery without external components. The device operates across –40°C to +85°C with supply voltage range 1.5V–5.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overcharge Detection Voltage | 4.375V ±25mV - triggers CO pin low after tCU delay to disable charge FET when cell voltage exceeds threshold |
| Overdischarge Detection Voltage | 2.500V ±35mV - triggers DO pin low after tDL delay to disable discharge FET when cell voltage drops below threshold |
| Discharge Overcurrent Threshold | 0.150V ±15mV - detects excessive load current via VM–VSS voltage drop and disables discharge path |
| Supply Current (Operation) | 3.0µA typ at +25°C - enables multi-year battery shelf life in always-connected protection circuits |
| Power-Down Current | 0.01µA typ - reduces leakage during storage or deep sleep, configurable at factory |
| 0V Battery Charge Support | Enabled - allows charger to initiate recovery of fully depleted cells down to 0V |
| VDD–VM Absolute Max | 30V - accommodates high-voltage chargers and transient surges without external clamping |
Pinout & Package
AP9101CAK-BNTRG1 is packaged in SOT25 (5-pin) with lead-free, RoHS-compliant construction. Pin 1 is marked and corresponds to VM.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current-sense input | Monitors voltage drop across sense resistor (R2) between P− and battery negative; used for overcurrent, short-circuit, and charger status detection |
| VDD | Positive supply input | Connects to battery positive terminal; powers internal circuitry and provides reference for all voltage monitors |
| VSS | Negative supply reference | Connects to battery negative; serves as common ground for comparators and logic |
| DO | Discharge control output | Drives gate of discharge N-MOSFET; high = on, low = off; includes internal pull-down during fault states |
| CO | Charge control output | Drives gate of charge N-MOSFET; high = on, low = off; latches low during overcharge or overvoltage charger events |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed protection thresholds | Fixed VCU=4.375V, VCL=4.175V, VDL=2.500V, VDU=2.900V, VDOC=0.150V, VSHORT=0.700V, VCOC=−0.150V - eliminates external resistor networks and trimming |
| Built-in fixed delay timers | tCU/tDL/tDOC = factory-set; no external capacitor needed - reduces BOM count and layout sensitivity |
| 0V battery charge enable | Active - permits safe reactivation of deeply discharged cells without manual intervention or external wake-up circuitry |
| Selectable power-down mode | Configurable at wafer level - enables ultra-low standby current (0.01µA) or auto-wake-up behavior based on application needs |
| Overvoltage charger detection | 8.0V detection / 7.3V release (±2V) - protects against faulty or mismatched chargers without delay, using VDD–VM differential sensing |
Applications
| Smart Wearables | Bluetooth Headsets |
|---|---|
|
Use Scenario: Compact wearable devices with single-cell Li+ batteries subject to frequent partial charge cycles and mechanical stress-induced micro-shorts. IC Role / Device Role / Timing Role: Primary battery protection controller enforcing overdischarge cutoff at 2.500V and short-circuit shutdown within 0.6–1.4µs to prevent thermal runaway. Use Value: Prevents irreversible capacity loss and swelling by halting discharge before 2.5V, while 0V charge support enables full recovery after accidental deep discharge. |
Use Scenario: Wireless audio earbuds requiring reliable protection during rapid charge/discharge cycling and intermittent high-current bursts. IC Role / Device Role / Timing Role: Dual-path gate driver (CO/DO) managing independent charge and discharge FETs with auto-release overcharge behavior and 0.150V ±15mV discharge overcurrent detection. Use Value: Enables consistent 500+ cycle life by eliminating cumulative overvoltage stress and preventing MOSFET shoot-through via precise hysteresis (0.200V between VCU/VCL). |
| Portable Medical Sensors | IoT Asset Trackers |
|
Use Scenario: Disposable or long-life medical patches powered by 1-cell Li+ batteries operating unattended for weeks with strict safety certification requirements. IC Role / Device Role / Timing Role: Safety-critical protection element meeting IEC 62133 compliance via ±25mV overcharge voltage accuracy and built-in 30V VDD–VM tolerance for ESD robustness. Use Value: Eliminates need for external TVS or voltage dividers, reducing footprint and qualification burden while ensuring fail-safe shutdown under fault conditions. |
Use Scenario: GPS-enabled asset trackers deployed in remote locations with infrequent charging and exposure to temperature extremes (–40°C to +85°C). IC Role / Device Role / Timing Role: Low-power protection supervisor with 0.01µA power-down current and guaranteed operation across full industrial temperature range. Use Value: Extends usable battery life by >30% versus discrete solutions, while factory-configured thresholds ensure consistent performance without field calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery protection IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5602L001AA-TR | Higher VCU resolution (1mV steps), but requires external capacitor for delay timing and lacks 0V charge function | Suitable for high-precision lab-grade battery testers where programmability outweighs BOM simplicity | Select only if adjustable thresholds and external timing control are required; not drop-in compatible due to different pinout and biasing |
| SE9101B-2500F | Fixed 4.250V overcharge threshold, no overvoltage charger detection, and no power-down mode option | Targeted at cost-sensitive consumer electronics with standardized Li+ chemistry and minimal safety margin requirements | Choose when design prioritizes lowest unit cost over extended feature set; verify compatibility with existing PCB layout and firmware logic |
Compared with R5602L001AA-TR and SE9101B-2500F, AP9101CAK-BNTRG1 delivers factory-tuned protection with zero external timing components, integrated charger overvoltage monitoring, and 0V recovery-making it optimal for production-ready, space-constrained 1-cell Li+ systems needing certified safety and long-term reliability.
Availability
AP9101CAK-BNTRG1 is available at Aetrix Electronics and suitable for smart wearables, Bluetooth headsets, portable medical sensors, and IoT asset trackers requiring stable component supply, long-lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for AP9101CAK-BNTRG1 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 devices, with design and manufacturing facilities certified to IATF 16949 and ISO 9001 standards.
The AP9101C series belongs to Diodes' battery protection IC product line, engineered specifically for high-accuracy, low-power, single-cell Li+ pack safety in consumer, medical, and industrial portable electronics.
FAQ
What is the function of the VM pin on AP9101CAK-BNTRG1?
The VM pin serves as the current-sense input that monitors the voltage difference between the battery's P− node and VSS. It enables detection of discharge overcurrent (at 0.150V ±15mV), short-circuit events (≥0.700V), and charge overcurrent (≤−0.150V), and also supports overvoltage charger monitoring via VDD–VM differential sensing up to 30V.
Does AP9101CAK-BNTRG1 support automatic recovery from overdischarge?
Yes - the AP9101CAK-BNTRG1 implements auto-release overdischarge protection. When the battery voltage rises above the overdischarge release voltage (VDU = 2.900V ±100mV), the DO pin returns high to re-enable the discharge FET. Recovery does not require external reset or charger connection, provided the 0V charge function is enabled and power-down mode is disabled.
Can AP9101CAK-BNTRG1 be used with lithium iron phosphate (LiFePO₄) cells?
No - AP9101CAK-BNTRG1 is optimized for lithium-ion and lithium-polymer chemistries with nominal 3.7V cells. Its overcharge detection threshold (4.375V) and overdischarge threshold (2.500V) fall outside the typical 3.65V max charge and 2.0V min discharge range of LiFePO₄, risking unsafe operation or premature cutoff.
What is the significance of the "AK" suffix in AP9101CAK-BNTRG1?
The "AK" suffix denotes the specific factory-programmed configuration: overcharge detection at 4.375V, overcharge release at 4.175V, overdischarge detection at 2.500V, overdischarge release at 2.900V, discharge overcurrent at 0.150V, short-circuit detection at 0.700V, and charge overcurrent at −0.150V - all with auto-release behavior and enabled 0V battery charging.
AP9101CAK-BNTRG1 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-BNTRG1 FAQ
1.How can I place an order for AP9101CAK-BNTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CAK-BNTRG1 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-BNTRG1 reliable?
The price and inventory of AP9101CAK-BNTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CAK-BNTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CAK-BNTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CAK-BNTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CAK-BNTRG1?
AP9101CAK-BNTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CAK-BNTRG1 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-BNTRG1?
For technical support, including AP9101CAK-BNTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CAK-BNTRG1 requirements.
6.How does Aetrix verify that AP9101CAK-BNTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CAK-BNTRG1 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-BNTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CAK-BNTRG1?
All AP9101CAK-BNTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CAK-BNTRG1, 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-BNTRG1 part is unused and in its original packaging.
Return procedure for AP9101CAK-BNTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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