My Inquiry
My Account
Diodes Incorporated AP9101CK6-BXTRG1
- Part No.:
- AP9101CK6-BXTRG1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- SOT-23-6
- Datasheet:
-
AP9101CK6-BXTRG1.pdf
- Description:
- IC BATT PROT LI-ION 1CELL SOT26
- Quantity:
- Payment:
- Shipping:
Inventory:2,562
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP9101CK6-BXTRG1 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 in portable power tools, Bluetooth headsets, and medical wearables.
For engineers reviewing the AP9101CK6-BXTRG1 datasheet, AP9101CK6-BXTRG1 pinout, AP9101CK6-BXTRG1 application, or AP9101CK6-BXTRG1 equivalent, this device delivers precision voltage monitoring, selectable 0V charge function, auto-release overcharge protection mode, and high-voltage tolerance (30V between VDD and VM) - critical for robust Li+ pack safety design.
Technical Context
The AP9101CK6-BXTRG1 implements independent analog comparators for overcharge (VCU), overdischarge (VDL), discharge overcurrent (VDOC), short-circuit (VSHORT), and charge overcurrent (VCOC), each with programmable thresholds and ±20% delay time accuracy. Its logic circuitry drives CO and DO outputs to control external high-side and low-side N-MOSFETs in series configuration.
It integrates internal pull-up (RVMD) and pull-down (RVMS) resistors on the VM sense node to enable automatic status recovery during overdischarge and short-circuit events, and supports both power-down mode (0.1µA standby) and auto-wake-up operation without charger dependency.
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 - detects >2.5A fault current with 100mΩ sense resistor |
| Operating Current (Typ) | 3.0µA at 3.5V - enables multi-year battery shelf life in always-connected devices |
| VDD–VM Absolute Max | 30V - supports high-voltage chargers and transient surge immunity |
| Delay Time Accuracy | ±20% - ensures consistent response timing across temperature (-40°C to +85°C) |
| 0V Battery Charge Function | Enabled - allows safe recharge of fully depleted cells without manual reset |
Pinout & Package
AP9101CK6-BXTRG1 is housed in a RoHS-compliant SOT26 package (3.0mm × 1.7mm × 1.3mm), optimized for space-constrained battery pack PCB layouts with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM | Current Sense Input | Monitors voltage drop across RSNS to detect charge/discharge overcurrent and short circuits |
| VDD | Positive Power Supply | Connects to battery positive; powers internal circuitry and drives CO/DO gates |
| VSS | Negative Power Reference | Ground reference for all internal comparators and logic; tied to battery negative |
| DO | Discharge Control Output | Drives gate of low-side N-MOSFET to interrupt discharge path during faults |
| CO | Charge Control Output | Drives gate of high-side N-MOSFET to interrupt charge path during overvoltage or overcurrent |
| NC | No Connect | Unused terminal; must remain unconnected per datasheet guidance |
Key Features
| Feature | Design Value |
|---|---|
| Fixed Delay Timing Circuit | Eliminates need for external timing capacitors - reduces BOM count and layout area |
| High-Voltage CMOS Process | Withstands 30V differential between VDD and VM - compatible with fast-charging adapters |
| Selectably Enabled 0V Charge | Permits safe reactivation of deeply discharged cells without external wake-up circuitry |
| Auto-Release Overcharge Mode | Automatically restores charge path when cell voltage drops below 4.175V - no manual reset needed |
| Low-Power Power-Down Mode | Reduces quiescent current to 0.1µA - extends shelf life of sealed battery modules |
Applications
| Power Tools | Wireless Headsets |
|---|---|
Use Scenario: Cordless drill operating at 20A peak discharge with intermittent fast charging cycles. IC Role / Device Role / Timing Role: Primary protection controller monitoring cell voltage and current via VM sense, asserting DO/CO to disable MOSFETs within 12ms of overdischarge detection. Use Value: Prevents irreversible capacity loss by enforcing 2.500V cutoff and enables rapid recovery after load removal via RVMS pull-down. |
Use Scenario: True wireless stereo earbuds requiring ultra-low standby current and reliable 0V recovery after long-term storage. IC Role / Device Role / Timing Role: Standalone protection IC managing dual 1S Li+ cells, using power-down mode (0.1µA) and factory-enabled 0V charge function. Use Value: Extends shelf life beyond 18 months while guaranteeing first-use functionality without user intervention. |
| Portable Medical Monitors | Smart Wearables |
Use Scenario: FDA-classified pulse oximeter with mandatory fail-safe shutdown on overtemperature or overcurrent. IC Role / Device Role / Timing Role: Safety-critical protector detecting short-circuit events (VSHORT ≥0.7V) with 1.2µs typical response and latching DO output. Use Value: Meets IEC 62368-1 fault containment requirements by isolating battery within <2µs of short onset. |
Use Scenario: Fitness tracker with 120mAh battery subjected to daily 1C cycling and accidental reverse-connection events. IC Role / Device Role / Timing Role: Dual-function protector providing overvoltage charger detection (8.0V threshold) and reverse-polarity current limiting via R1/R2 network. Use Value: Blocks >10V charger faults before MOSFET gate oxide breakdown and limits reverse current to <1mA using built-in RVMD/RVMS. |
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 option; requires external timing cap | Lacks auto-wake-up and overvoltage charger detection; suited only for cost-sensitive consumer electronics | Select only if fixed 4.25V OCV and absence of 0V charge are acceptable |
| Ricoh RP502K001B-TR-F | Supports 2-cell stacks; higher 5.0V VDD max; no VM pin - uses dedicated CS pin | Designed for multi-cell configurations; incompatible with 1S VM-sense topology | Not suitable for 1-cell designs; requires redesign of sense path and FET layout |
Compared with S-8261AAB-M6T1U and RP502K001B-TR-F, the AP9101CK6-BXTRG1 uniquely combines factory-programmed 4.375V overcharge detection, integrated 0V charge enable, and 30V VDD–VM tolerance - enabling compact, high-reliability 1S protection without external timing components or secondary wake-up circuitry.
Availability
AP9101CK6-BXTRG1 is available at Aetrix Electronics and suitable for power tools, wireless headsets, portable medical monitors, and smart wearables requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/Green compliance.
Supply support for AP9101CK6-BXTRG1 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 solutions, with manufacturing certified to IATF 16949 and product lines qualified for automotive, industrial, and computing applications.
The AP9101C series belongs to Diodes' battery management portfolio, engineered specifically for high-accuracy, low-power protection of single-cell Li-ion and Li-polymer batteries in space- and reliability-constrained applications.
FAQ
What is the function of the VM pin on AP9101CK6-BXTRG1?
The VM pin serves as the current-sense input for detecting discharge overcurrent, charge overcurrent, and short-circuit conditions. It measures voltage drop across an external sense resistor (RSNS) between battery negative and system ground. Internal RVMS and RVMD resistors connect to VM during fault states to enable automatic recovery without external circuitry.
Does AP9101CK6-BXTRG1 support overvoltage protection for the charger input?
Yes - it includes a dedicated overvoltage charger detection circuit that monitors voltage between VDD and VM pins. When this exceeds 8.0V (±2V), the CO pin is driven low to disable the charge MOSFET immediately, with release occurring at 7.3V. No delay is applied to this function, ensuring instantaneous response to charger faults.
Can AP9101CK6-BXTRG1 be used in 2-cell battery packs?
No - the AP9101CK6-BXTRG1 is designed exclusively for 1-cell Li+ applications. Its voltage detection ranges (e.g., 2.500V–4.375V) and VM-based current sensing assume a single-cell stack. For 2-cell configurations, Diodes offers the AP9211 or AP9221 families with dual-cell voltage monitoring and separate cell-balancing interfaces.
How does the 0V battery charge function operate in AP9101CK6-BXTRG1?
This function is factory-enabled and allows the IC to activate the charge path even when the battery voltage reads 0V due to self-discharge. It does so by internally biasing the CO driver upon detecting a valid charger voltage (>1.2V at VDD), bypassing the normal under-voltage lockout - enabling safe, controlled recharge without manual intervention or external wake-up signals.
AP9101CK6-BXTRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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-26
AP9101CK6-BXTRG1 FAQ
1.How can I place an order for AP9101CK6-BXTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9101CK6-BXTRG1 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 AP9101CK6-BXTRG1 reliable?
The price and inventory of AP9101CK6-BXTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9101CK6-BXTRG1 is usually 5 days.
3.What payment methods are accepted for AP9101CK6-BXTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9101CK6-BXTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9101CK6-BXTRG1?
AP9101CK6-BXTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9101CK6-BXTRG1 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 AP9101CK6-BXTRG1?
For technical support, including AP9101CK6-BXTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9101CK6-BXTRG1 requirements.
6.How does Aetrix verify that AP9101CK6-BXTRG1 is sourced from the original manufacturer or authorized distributors?
All AP9101CK6-BXTRG1 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 AP9101CK6-BXTRG1 meets industry standards.
7.What is the process for return or replacement of AP9101CK6-BXTRG1?
All AP9101CK6-BXTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9101CK6-BXTRG1, 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 AP9101CK6-BXTRG1 part is unused and in its original packaging.
Return procedure for AP9101CK6-BXTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP9101CK6-BXTRG1 Tags
-
BQ29700DSER
Texas Instruments
-
S-8241ABKMC-GBKT2G
ABLIC Inc.
-
S-8241ABPMC-GBPT2G
ABLIC Inc.
-
BQ27427YZFR
Texas Instruments
-
BQ27426YZFR
Texas Instruments
-
STC3117IJT
STMicroelectronics
-
STC3115IJT
STMicroelectronics
-
BQ76925RGER
Texas Instruments
-
NPM1100-QDAA-R
Nordic Semiconductor ASA
-
BQ27441DRZR-G1A
Texas Instruments
-
STC3115AIQT
STMicroelectronics
-
S-8252AAL-M6T1U
ABLIC Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
