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Diodes Incorporated AP9101CAK-ADTRG1
- Part No.:
- AP9101CAK-ADTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP9101CAK-ADTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,761
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Product details
Overview
AP9101CAK-ADTRG1 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 0.120V ±15mV, short-circuit detection at 0.700V ±100mV, and charge overcurrent detection at −0.120V ±15mV. It integrates fixed-delay timing, 0V battery charge enable, and selectable power-down mode, deployed in portable power tools and medical wearable batteries.
For engineers reviewing the AP9101CAK-ADTRG1 datasheet, AP9101CAK-ADTRG1 pinout, AP9101CAK-ADTRG1 application, or AP9101CAK-ADTRG1 equivalent, this page delivers verified electrical parameters, SOT25 pin mapping, real-world use scenarios in Li+ pack design, and two validated alternative parts with precise functional differences.
Technical Context
The AP9101CAK-ADTRG1 implements dual-MOSFET control via separate CO (charge FET gate) and DO (discharge FET gate) outputs, with independent voltage and current sensing paths referencing VM, VDD, and VSS. Its internal logic enforces auto-release overcharge protection and supports both power-down and auto-wake-up operation modes.
It features built-in high-voltage CMOS process enabling 30V VDD-to-VM tolerance, integrated RVMD (300kΩ typ) and RVMS (30kΩ typ) sense resistors, and fixed delay timers (tCU = 1.0s typ, tDOC = 12ms typ, tSHORT = 350µs typ) with ±20% accuracy at +25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overcharge Detection Voltage | 4.375V ±25mV - sets precise upper cell voltage limit before disabling charge FET |
| Overdischarge Detection Voltage | 2.500V ±35mV - triggers discharge FET shutdown to prevent deep discharge damage |
| Discharge Overcurrent Threshold | 0.120V ±15mV - detects excessive load current via sense resistor voltage drop |
| Short-Circuit Detection Voltage | 0.700V ±100mV - enables rapid (<1ms) discharge FET cutoff during hard shorts |
| Operating Current (Typ) | 3.0µA at 3.5V - enables multi-year runtime in low-power battery monitoring systems |
| Power-Down Current (Typ) | 0.01µA - extends shelf life of stored battery packs with zero-load leakage |
| VDD–VM Absolute Max | 30V - supports robust charger interface design without external clamping |
Pinout & Package
AP9101CAK-ADTRG1 is packaged in SOT25 (5-pin), with pin 1 marked and NC terminal omitted. The package supports reflow soldering per JEDEC J-STD-020 and operates from −40°C to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current Sense Input | Monitors voltage drop across external sense resistor to detect charge/discharge overcurrent and short circuits |
| VDD | Positive Supply Input | Connects to battery positive; powers internal circuitry and drives CO/DO gate outputs |
| VSS | Negative Supply Reference | Ground reference for all internal comparators and logic; tied to battery negative |
| DO | Discharge FET Gate Driver | High-level output enables discharge path; pulled low during overdischarge, overcurrent, or short events |
| CO | Charge FET Gate Driver | High-level output enables charge path; pulled low during overcharge, charge overcurrent, or overvoltage charger events |
Key Features
| Feature | Design Value |
|---|---|
| 0V Battery Charge Enable | Factory-configured option allowing safe recharge of fully depleted cells down to 0V |
| Auto-Release Overcharge Protection | Automatically restores charge path when cell voltage drops below 4.175V (VCL), eliminating manual reset requirement |
| Integrated Sense Resistors | RVMD (300kΩ typ) and RVMS (30kΩ typ) eliminate need for external components in overdischarge and short-circuit recovery paths |
| Selectable Power-Down Mode | User-configurable via factory setting: enables ultra-low 0.01µA sleep current or auto-wake-up on voltage rise |
| Overvoltage Charger Detection | 8.0V ±2V threshold disables charging if input exceeds safe level-no external comparator needed |
Applications
| Power Tool Battery Packs | Medical Wearable Batteries |
|---|---|
|
Use Scenario: Cordless drill/driver battery packs requiring cycle-life preservation and safety compliance under variable load and temperature. IC Role / Device Role / Timing Role: Primary protection controller managing dual-MOSFET switching, voltage/current fault detection, and automatic recovery timing. Use Value: Prevents thermal runaway during high-current bursts (e.g., stall torque) via 0.120V discharge overcurrent threshold and 350µs short-circuit response. |
Use Scenario: Rechargeable Li+ cells in portable ECG monitors or insulin pumps where long shelf life and zero-volt recovery are critical. IC Role / Device Role / Timing Role: Standby-mode supervisor enabling 0.01µA quiescent current and 0V battery charge activation upon first charger connection. Use Value: Extends field-deployed device readiness by supporting full recharge after months of storage at 0V cell voltage. |
| Bluetooth Headset Battery Modules | IoT Sensor Node Power Management |
|
Use Scenario: Compact 1-cell Li+ modules in wireless audio devices subject to frequent partial charging and micro-short risks. IC Role / Device Role / Timing Role: Fault detector and gate driver enforcing overdischarge (2.500V) and short-circuit (0.700V) cutoff with auto-release behavior. Use Value: Eliminates false lockups during transient shorts by releasing discharge path once load is removed-no firmware intervention required. |
Use Scenario: Low-duty-cycle environmental sensors powered by coin-cell-sized Li+ batteries operating in remote locations. IC Role / Device Role / Timing Role: Ultra-low-power protector maintaining <3µA active current and enabling wake-on-charge functionality. Use Value: Achieves >5-year battery life in intermittent transmit applications while guaranteeing safe charge termination at 4.375V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery protection IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Seiko Instruments S-8261AAB-M6T1U | Fixed 4.25V overcharge threshold; no 0V charge function; 1.5µA typical operating current | Lacks auto-wake-up and 0V charge support; requires external capacitor for delay timing | Choose for cost-sensitive, non-zero-volt-recovery designs where fixed thresholds suffice |
| Ricoh RP502K001B-TR-F | Programmable overcharge voltage (4.10–4.45V); includes temperature compensation; 2.0µA operating current | Supports thermal-aware protection but requires external NTC and configuration resistors | Choose when ambient temperature variation significantly impacts cell voltage thresholds |
Compared with S-8261AAB-M6T1U and RP502K001B-TR-F, AP9101CAK-ADTRG1 uniquely combines factory-programmed 4.375V/2.500V thresholds, integrated 0V charge enable, and zero-external-component fixed timing-reducing BOM count and layout area in space-constrained 1-cell packs.
Availability
AP9101CAK-ADTRG1 is available at Aetrix Electronics and suitable for power tool battery packs, medical wearable batteries, Bluetooth headset modules, and IoT sensor node power management requiring stable component supply and RoHS-compliant green packaging.
Supply support for AP9101CAK-ADTRG1 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 solutions, with ISO/TS 16949-certified facilities and broad distribution across industrial, computing, and consumer markets.
The AP9101C series belongs to Diodes' battery protection IC product line, engineered specifically for compact, high-accuracy 1-cell Li+ pack safety-emphasizing low quiescent current, integrated timing, and factory-configurable voltage thresholds.
FAQ
What is the function of the VM pin on AP9101CAK-ADTRG1?
The VM pin serves as the current-sense input terminal, measuring voltage drop across an external sense resistor between battery negative and system ground. It directly feeds the discharge overcurrent, short-circuit, and charge overcurrent comparators, enabling precise detection of abnormal current flow without external amplification.
Does AP9101CAK-ADTRG1 support automatic recovery from overdischarge?
Yes-when configured in auto-wake-up mode (as indicated by the "A" in position 7 of the part number), the device exits overdischarge status automatically once the battery voltage rises above the overdischarge release voltage (2.900V) and remains there for the release delay time, eliminating need for external reset signals or charger presence.
How does the 0V battery charge function operate in practice?
When enabled, the 0V battery charge function allows the AP9101CAK-ADTRG1 to activate its internal charge path even when the connected Li+ cell measures 0V. This permits safe trickle charging to restore cells degraded by long-term self-discharge, provided the charger supplies ≥1.2V to the VDD pin during initial connection.
Can AP9101CAK-ADTRG1 be used in automotive applications?
No-AP9101CAK-ADTRG1 is not AEC-Q200 qualified and lacks automotive-grade qualification documentation. While it operates across −40°C to +85°C, Diodes Incorporated explicitly states that automotive applications require direct consultation for PPAP-capable, IATF 16949-manufactured alternatives with AEC-Q100/101/104/200 validation.
AP9101CAK-ADTRG1 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-ADTRG1 FAQ
1.How can I place an order for AP9101CAK-ADTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CAK-ADTRG1 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-ADTRG1 reliable?
The price and inventory of AP9101CAK-ADTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CAK-ADTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CAK-ADTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CAK-ADTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CAK-ADTRG1?
AP9101CAK-ADTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CAK-ADTRG1 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-ADTRG1?
For technical support, including AP9101CAK-ADTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CAK-ADTRG1 requirements.
6.How does Aetrix verify that AP9101CAK-ADTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CAK-ADTRG1 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-ADTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CAK-ADTRG1?
All AP9101CAK-ADTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CAK-ADTRG1, 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-ADTRG1 part is unused and in its original packaging.
Return procedure for AP9101CAK-ADTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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