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Diodes Incorporated AP9101CAK-BVTRG1
- Part No.:
- AP9101CAK-BVTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CAK-BVTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:4,241
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Product details
Overview
AP9101CAK-BVTRG1 from Diodes Incorporated is a single-chip lithium-ion battery protection IC for 1-cell packs, featuring overcharge detection at 4.375 V ±25 mV, overdischarge detection at 2.500 V ±35 mV, discharge overcurrent detection at 0.150 V ±15 mV, and built-in 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 medical wearables.
For engineers reviewing the AP9101CAK-BVTRG1 datasheet, AP9101CAK-BVTRG1 pinout, AP9101CAK-BVTRG1 application, or AP9101CAK-BVTRG1 equivalent, this device supports precise voltage monitoring across charge/discharge paths, selectable 0V-charge functionality, and high-voltage tolerance (30 V between VDD and VM) - critical for robust battery pack safety design under variable load and charger conditions.
Technical Context
The AP9101CAK-BVTRG1 integrates independent voltage comparators for overcharge (VCU), overdischarge (VDL), and overvoltage charger (VOVCHG = 8.0 V) with hysteresis control, plus current-sense comparators for discharge overcurrent (VDOC), short-circuit (VSHORT), and charge overcurrent (VCOC). Its logic circuitry drives CO and DO outputs to disable external MOSFETs upon fault detection.
It operates with dual sensing paths: VDD–VSS monitors cell voltage, while VM–VSS senses current via sense resistor R2; internal resistors RVMD (300 kΩ typ) and RVMS (30 kΩ typ) enable automatic status recovery during overdischarge or short-circuit events without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overcharge Detection Voltage | 4.375 V ±25 mV - sets precise upper cell voltage limit before disabling charge path |
| Overdischarge Detection Voltage | 2.500 V ±35 mV - prevents deep discharge damage to Li+ cells |
| Discharge Overcurrent Threshold | 0.150 V ±15 mV - enables accurate current limiting using low-value sense resistor |
| Supply Current (Operation) | 3.0 µA typ at 3.5 V - extends battery standby life in always-connected devices |
| VDD–VM Absolute Max | 30 V - supports high-voltage chargers and transient surge resilience |
| 0V Battery Charge Function | Enabled - allows safe recharge of fully depleted cells without manual intervention |
| Power-Down Mode | Selectable - reduces quiescent current to 0.1 µA typ for ultra-low-power storage mode |
Pinout & Package
AP9101CAK-BVTRG1 is packaged in SOT25 (5-pin) with lead-free, RoHS-compliant construction. Pin assignments are validated per Diodes DS37771 Rev. 8–3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current Sense Input | Monitors voltage drop across external sense resistor (R2) to detect discharge/charge overcurrent and short-circuit conditions |
| VDD | Positive Supply Input | Connects to battery positive terminal; powers internal circuitry and provides reference for VM sensing |
| VSS | Negative Supply Reference | Ground reference for all internal comparators and logic; tied to battery negative |
| DO | Discharge Control Output | Drives gate of discharge-side N-MOSFET; pulls low to disconnect load during overdischarge or overcurrent |
| CO | Charge Control Output | Drives gate of charge-side N-MOSFET; pulls low to block charging during overcharge or charge overcurrent |
Key Features
| Feature | Design Value |
|---|---|
| Fixed Delay Timing | No external capacitor needed - simplifies BOM and improves layout reliability for tCU/tDL/tDOC timing |
| High-Voltage CMOS Process | 30 V VDD–VM rating - eliminates need for external clamping diodes in high-voltage charger interfaces |
| Auto-Wake-Up Option | Enabled in AK variant - recovers from overdischarge without charger connection when VBAT > VDU |
| Integrated Sense Resistor Biasing | RVMD (300 kΩ) and RVMS (30 kΩ) - enable automatic VM pull-up/pull-down for fault recovery without discrete resistors |
| RoHS/Green Compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - meets global environmental compliance mandates |
Applications
| Power Tools | Wireless Headsets |
|---|---|
Use Scenario: Cordless drill operating under intermittent high-current loads with rapid charge/discharge cycles. IC Role / Device Role / Timing Role: Monitors cell voltage and discharge current in real time; disables discharge path within 14 ms (tDOC typ) if >20 A load exceeds safe threshold. Use Value: Prevents thermal runaway during stall conditions while enabling full capacity utilization between charges. | Use Scenario: Compact Bluetooth earbuds requiring multi-year battery cycle life and zero-volt recovery after long-term storage. IC Role / Device Role / Timing Role: Enforces 2.500 V overdischarge cutoff and initiates 0V-charge mode when battery self-discharges to 0 V. Use Value: Eliminates user "bricking" of devices left unused for months; restores function without service intervention. |
| Portable Medical Monitors | Smart Wearables |
Use Scenario: Clinical-grade pulse oximeter used continuously for 72-hour patient observation with strict safety certification requirements. IC Role / Device Role / Timing Role: Provides redundant overvoltage protection (VOVCHG = 8.0 V) on charger input and blocks charge path within microseconds if short occurs. Use Value: Meets IEC 62368-1 fault response timing; ensures no hazardous energy release during charger failure. | Use Scenario: Fitness tracker worn 24/7 with aggressive sleep-mode current targets and frequent micro-charge events. IC Role / Device Role / Timing Role: Maintains 3.0 µA operating current and enters 0.1 µA power-down mode during extended idle periods. Use Value: Extends usable battery life by >35% versus legacy protection ICs, reducing replacement frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP9101CAK-BVTRG1 | 4.375 V OCV, 2.500 V ODV, 0.150 V DOC, 0V-charge enabled, power-down selectable | Optimized for cost-sensitive 1S Li+ packs with auto-wake-up recovery | Default choice for new designs requiring balanced accuracy, low IQ, and field-recoverable overdischarge |
| AP9101CAB-BVTRG1 | Same voltage thresholds but auto-wake-up disabled; power-down mode mandatory | Requires charger presence to exit overdischarge - suited for docked/managed devices | Select when system architecture guarantees periodic charger access and lowest possible standby current is critical |
Compared with AP9101CAB-BVTRG1, the AP9101CAK-BVTRG1 trades 0.09 µA higher typical standby current (0.1 µA vs. 0.01 µA) for autonomous overdischarge recovery - a decisive advantage in consumer wearables and remote sensors where charger access is infrequent or uncontrolled.
Availability
AP9101CAK-BVTRG1 is available at Aetrix Electronics and suitable for portable medical monitors, cordless power tools, wireless headsets, and smart wearables requiring stable component supply, long-lifecycle support, and automotive-grade traceability.
Supply support for AP9101CAK-BVTRG1 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, with manufacturing certified to IATF 16949 and product qualification per AEC-Q100/101 standards.
The AP9101C series belongs to Diodes' battery protection IC product line, designed specifically for high-accuracy, low-power, single-cell Li+ pack safety in space-constrained portable electronics.
FAQ
What is the function of the VM pin on AP9101CAK-BVTRG1?
The VM pin serves as the current-sense input referenced to VSS, detecting voltage drop across an external sense resistor (R2) to identify discharge overcurrent, charge overcurrent, and short-circuit conditions. Internal resistors RVMD and RVMS connect automatically during fault states to bias VM for recovery - eliminating need for external pull-up/pull-down components.
Does AP9101CAK-BVTRG1 support overvoltage protection on the charger input?
Yes. The AP9101CAK-BVTRG1 includes a dedicated overvoltage charger detection circuit monitoring voltage between VDD and VM pins. It triggers CO pin shutdown at 8.0 V (±2 V) and releases at 7.3 V (±2 V) with no delay - protecting against faulty or mismatched chargers without external components.
How does the 0V battery charge function operate in AP9101CAK-BVTRG1?
This function is factory-enabled in the AK variant. When battery voltage reaches 0 V due to self-discharge, the IC permits charger current to flow once VDD rises above 1.2 V, allowing safe reactivation of deeply discharged cells. It is not dependent on external wake-up signals or manual reset sequences.
Can AP9101CAK-BVTRG1 be used with both N-channel and P-channel MOSFETs?
AP9101CAK-BVTRG1 is designed exclusively for N-channel MOSFET configurations: CO drives the gate of the charge-path N-FET (source to battery+, drain to charger+), and DO drives the discharge-path N-FET (source to battery−, drain to load−). Its output voltage swing and drive strength are specified for N-MOS gate control only.
AP9101CAK-BVTRG1 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-BVTRG1 FAQ
1.How can I place an order for AP9101CAK-BVTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CAK-BVTRG1 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-BVTRG1 reliable?
The price and inventory of AP9101CAK-BVTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CAK-BVTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CAK-BVTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CAK-BVTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CAK-BVTRG1?
AP9101CAK-BVTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CAK-BVTRG1 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-BVTRG1?
For technical support, including AP9101CAK-BVTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CAK-BVTRG1 requirements.
6.How does Aetrix verify that AP9101CAK-BVTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CAK-BVTRG1 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-BVTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CAK-BVTRG1?
All AP9101CAK-BVTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CAK-BVTRG1, 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-BVTRG1 part is unused and in its original packaging.
Return procedure for AP9101CAK-BVTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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