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Diodes Incorporated AP9101CAK-BLTRG1
- Part No.:
- AP9101CAK-BLTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CAK-BLTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:4,724
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Product details
Overview
AP9101CAK-BLTRG1 from Diodes Incorporated is a single-chip lithium-ion battery protection IC for 1-cell packs, integrating overcharge (4.375V), overdischarge (2.500V), discharge overcurrent (0.150V), short-circuit (0.700V), and charge overcurrent (-0.150V) detection with ±25mV voltage accuracy and fixed internal 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-BLTRG1 datasheet, AP9101CAK-BLTRG1 pinout, AP9101CAK-BLTRG1 application, or AP9101CAK-BLTRG1 equivalent, this device is selected for compact, low-power battery management in portable electronics where precision voltage thresholds, ultra-low quiescent current (3.0µA operating / 0.01µA power-down), and integrated delay circuits eliminate external capacitors.
Technical Context
The AP9101CAK-BLTRG1 implements independent analog comparators for six protection conditions-overcharge, overdischarge, discharge overcurrent, short circuit, charge overcurrent, and overvoltage charger-with dedicated hysteresis and fixed delay timers (e.g., tCU = 1.0s typ, tSHORT = 8µs typ). Its high-voltage CMOS process enables 30V VDD-to-VM tolerance, supporting direct connection to charger input rails.
It uses internal resistor networks (RVMD = 300kΩ typ, RVMS = 30kΩ typ) to condition VM-sense signals and enable automatic status recovery: overdischarge release occurs at VDU = 2.900V, while overcharge release triggers at VCL = 4.175V. The CO/DO outputs drive external MOSFET gates with RCOH/RCOL ≤10kΩ and RDOH/RDOL ≤10kΩ, ensuring robust FET switching under load.
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 | 0.150V ±15mV - corresponds to sense-resistor-based current limit (e.g., 150mV/5mΩ = 30A) |
| Operating Current | 3.0µA typ at 3.5V - enables multi-year battery shelf life in standby |
| Power-Down Current | 0.01µA typ - reduces self-discharge impact during long-term storage |
| VDD–VM Absolute Max | 30V - allows direct integration with 12V/24V charger inputs without level-shifting |
| 0V Battery Charge | Enabled - permits safe recharge of fully depleted cells via external charger control |
Pinout & Package
AP9101CAK-BLTRG1 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 to detect charge/discharge overcurrent and short circuit |
| VDD | Positive supply input | Connects to battery positive; powers internal circuitry and provides reference for VM sensing |
| VSS | Negative supply ground | System ground reference for all internal comparators and logic |
| DO | Discharge control output | Drives gate of external discharge MOSFET; low = disable discharge path |
| CO | Charge control output | Drives gate of external charge MOSFET; low = disable charge path |
Key Features
| Feature | Design Value |
|---|---|
| Fixed internal delay timers | Eliminates external RC components for overcharge (tCU), overdischarge (tDL), and short-circuit (tSHORT) protection |
| High-accuracy voltage references | ±25mV overcharge detection tolerance ensures consistent cell voltage clamping across temperature and unit variance |
| Selectably enabled 0V charge function | Allows recovery of deeply discharged batteries without manual pre-charge circuitry |
| Configurable power-down mode | Reduces system standby current to 0.01µA while retaining overdischarge lockout until charger reconnection |
| Overvoltage charger detection | 8.0V ±2V threshold protects against faulty chargers by disabling CO independently of battery voltage |
Applications
| Smartphone Battery Pack | Wireless Earbud Case |
|---|---|
|
Use Scenario: Single-cell Li-ion pack powering a smartphone with fast-charge capability and thermal monitoring. IC Role / Device Role / Timing Role: Primary protection controller enforcing JEITA-compliant charge voltage limits and detecting 30A+ discharge surges during RF transmission bursts. Use Value: Prevents cell swelling or thermal runaway by cutting off charge at 4.375V and disabling discharge within 1s of 0.150V sense-resistor threshold breach. |
Use Scenario: Compact 1S battery in charging case managing simultaneous earbud charging and case self-recharge. IC Role / Device Role / Timing Role: Dual-path protector enabling independent charge/discharge MOSFET control and 0V recovery for earbuds left uncharged for months. Use Value: Enables full functional recovery after deep discharge without user intervention, using factory-enabled 0V charge and auto-wake-up behavior. |
| Bluetooth Speaker Power Module | Portable Medical Monitor |
|
Use Scenario: Rechargeable speaker with USB-C PD input and speaker-driver load demanding stable 3.0–4.2V operation. IC Role / Device Role / Timing Role: Safety supervisor detecting short-circuit events (<8µs response) during accidental terminal contact and blocking discharge path. Use Value: Guarantees immediate shutdown on 0.700V VM–VSS fault, preventing PCB trace melting or connector arcing during field use. |
Use Scenario: Life-critical handheld monitor requiring >5-year shelf life and guaranteed first-power reliability after storage. IC Role / Device Role / Timing Role: Ultra-low-power protector maintaining <0.01µA draw in power-down mode while preserving overdischarge lockout integrity. Use Value: Extends usable battery shelf life by >3× versus standard protection ICs, meeting IEC 62366 usability requirements. |
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-8261AAB-M6T1U | Fixed 4.25V overcharge threshold; no 0V charge support; requires external capacitor for delay timing | Lacks configurable thresholds and integrated short-circuit detection; suited only for cost-sensitive, non-recoverable designs | Choose when fixed thresholds and lower BOM count outweigh need for precision and recovery features |
| Ricoh RP502K001B-TR-F | Supports 2-cell stacks; higher VDD–VM rating (36V); no overvoltage charger detection | Designed for multi-cell power tools; lacks 0V charge and auto-wake-up modes required for consumer portables | Prefer for industrial multi-cell systems where charger overvoltage immunity is not required |
Compared with S-8261AAB-M6T1U and RP502K001B-TR-F, the AP9101CAK-BLTRG1 uniquely combines factory-programmed precision thresholds, 0V charge recovery, overvoltage charger detection, and sub-10nA power-down current-making it optimal for high-reliability, long-shelf-life single-cell consumer devices.
Availability
AP9101CAK-BLTRG1 is available at Aetrix Electronics and suitable for smartphone battery packs, wireless earbud cases, Bluetooth speaker modules, and portable medical monitors requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/Green compliance.
Supply support for AP9101CAK-BLTRG1 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 definitions aligned to AEC-Q200 standards.
The AP9101C series belongs to Diodes' battery protection IC product line, engineered specifically for space-constrained, low-quiescent-power 1-cell Li+ applications in consumer electronics where precision, reliability, and zero external timing components are mandatory.
FAQ
What is the function of the VM pin on AP9101CAK-BLTRG1?
The VM pin serves as the current-sense input, measuring voltage drop across an external sense resistor between battery negative and system ground. It enables detection of discharge overcurrent (at 0.150V), short-circuit (0.700V), and charge overcurrent (-0.150V) by comparing VM–VSS to internal reference thresholds. Internal resistor networks (RVMD/RVMS) condition this signal for accurate timing and recovery behavior.
Does AP9101CAK-BLTRG1 support both charge and discharge MOSFET control?
Yes. The CO pin controls the gate of the charge-path N-channel MOSFET, turning it off during overcharge, charge overcurrent, or overvoltage charger events. The DO pin controls the discharge-path N-channel MOSFET, turning it off during overdischarge, discharge overcurrent, or short-circuit conditions. Both outputs drive MOSFET gates directly with low-impedance pull-up/pull-down capability (RCOH/RCOL ≤10kΩ).
How does the 0V battery charge function operate in AP9101CAK-BLTRG1?
The 0V battery charge function is factory-enabled in AP9101CAK-BLTRG1 and allows external chargers to initiate charging even when the battery voltage reads 0V due to self-discharge. It operates by permitting CO pin activation once charger voltage exceeds 1.2V at VDD, bypassing normal under-voltage lockout. This avoids permanent battery discard and enables full recovery without service intervention.
What is the significance of the "AK" suffix in AP9101CAK-BLTRG1?
The "AK" suffix denotes the specific configuration: overcharge detection voltage = 4.375V, overcharge release = 4.175V, overdischarge detection = 2.500V, overdischarge release = 2.900V, discharge overcurrent = 0.150V, short-circuit = 0.700V, and charge overcurrent = -0.150V. It also indicates selectable power-down mode and auto-release overcharge protection behavior, per Diodes' ordering matrix.
AP9101CAK-BLTRG1 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-BLTRG1 FAQ
1.How can I place an order for AP9101CAK-BLTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CAK-BLTRG1 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-BLTRG1 reliable?
The price and inventory of AP9101CAK-BLTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CAK-BLTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CAK-BLTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CAK-BLTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CAK-BLTRG1?
AP9101CAK-BLTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CAK-BLTRG1 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-BLTRG1?
For technical support, including AP9101CAK-BLTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CAK-BLTRG1 requirements.
6.How does Aetrix verify that AP9101CAK-BLTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CAK-BLTRG1 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-BLTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CAK-BLTRG1?
All AP9101CAK-BLTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CAK-BLTRG1, 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-BLTRG1 part is unused and in its original packaging.
Return procedure for AP9101CAK-BLTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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