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Diodes Incorporated AP9106GTR-G1
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- Part No.:
- AP9106GTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AP9106GTR-G1.pdf
- Description:
- IC BATT PWR LI-ION 1-6C 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,381
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Product details
Overview
AP9106GTR-G1 from Diodes Incorporated is an 8-channel analog switch IC designed for cell voltage monitoring in up to 6-series Li+/polymer battery packs. It features ±1% channel matching error, 1.0 µA shutdown current, TTL/CMOS-compatible logic inputs (A/B/C/D), and a dedicated VOUT pin delivering exact cell-level voltage readings - used in e-bike and power tool battery management systems.
For engineers reviewing the AP9106GTR-G1 datasheet, AP9106GTR-G1 pinout, AP9106GTR-G1 application, or AP9106GTR-G1 equivalent, this page delivers verified technical context, TSSOP-20 package mapping, real-world switching behavior across B0–B6 and AUX7/AUX8 channels, and functional alternatives for multi-cell battery monitoring designs.
Technical Context
The AP9106GTR-G1 implements a decoder-driven analog multiplexer architecture with eight selectable differential input paths: six for serial battery cell voltages (B1–B6 relative to adjacent nodes), plus two auxiliary channels (AUX7, AUX8) for NTC thermistor interfacing. All channels feed a single VOUT output pin.
Logic control uses four TTL/CMOS-compatible inputs (A/B/C/D) to select one of eight channels or enter shutdown mode (all low). Output logic pins (BLO/CLO/DLO) mirror internal decoding state and support cascading for 11-cell configurations using dual chips - enabling scalable battery pack monitoring without external microcontroller intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel count | 8 selectable analog paths: 6 cell-voltage inputs (B1–B6), 2 auxiliary (AUX7/AUX8) |
| Cell voltage range | 2.0 V to 4.5 V per cell - supports standard Li-ion/polymer operating window |
| Channel matching error | ±1% max between any two channels - ensures consistent voltage measurement accuracy across cells |
| Shutdown current | 1.0 µA typical - minimizes quiescent drain during pack idle or sleep states |
| Logic compatibility | TTL/CMOS level (VIL ≤ 0.6 V, VIH ≥ 1.0 V) - direct interface with MCU GPIO without level-shifting |
| Supply voltage (VDD) | 6.0 V to 27 V - accommodates up to 6-cell stack (24 V nominal) with margin |
| Thermal resistance (θJA) | 80 °C/W - defines junction-to-ambient thermal performance in TSSOP-20 package |
Pinout & Package
AP9106GTR-G1 is housed in a 20-pin TSSOP package (4.4 mm × 6.5 mm, 0.65 mm pitch) with exposed pad for thermal dissipation. Pin 1 (VL) supplies level-shift logic; Pin 2 (VDD) connects to top-cell positive node; Pins 3–9 (B6–B0/GND) form the stacked battery node interface; Pins 10/11 (AUX7/AUX8) support thermistor sensing; Pin 12 (VOUT) delivers selected channel voltage; Pins 14–17 (D/C/B/A) accept selection logic; Pins 18–20 (BLO/CLO/DLO) provide decoded outputs for daisy-chaining.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VL | Level-shift logic supply | Must be ≥ VDD; enables high-side logic translation for A/B/C/D inputs |
| 2 VDD | Main power supply | Connected to top-cell positive node; sets operating voltage for internal circuitry |
| 3–9 B6–B0/GND | Battery node connections | Form differential pairs: B1–B0, B2–B1, ..., B6–B5; B0 = system ground |
| 10 AUX7 / 11 AUX8 | Auxiliary sensing inputs | Interface NTC thermistors; referenced to GND for temperature-derived voltage on VOUT |
| 12 VOUT | Analog output | Single-ended output delivering voltage of selected channel (cell or AUX) |
| 14–17 D/C/B/A | Channel selection inputs | Binary-coded address lines; all low = shutdown; no pull-up required (1 MΩ internal) |
| 18–20 BLO/CLO/DLO | Decoded logic outputs | Open-drain outputs mirroring internal decoder state; enable dual-chip 11-cell cascade |
Key Features
| Feature | Design Value |
|---|---|
| ±1% channel matching error | Ensures uniform voltage reading accuracy across all 6 cell channels - critical for balanced charging decisions |
| Ultra-low 1.0 µA shutdown current | Extends battery pack standby time without compromising monitoring readiness |
| Dual-chip 11-cell scalability | Uses BLO/CLO/DLO outputs to synchronize two AP9106s - eliminates need for additional logic or MCU resources |
| TTL/CMOS-compatible inputs with 1 MΩ pull-down | Direct connection to MCU I/O pins without external biasing or level shifters |
| Dedicated AUX7/AUX8 thermistor channels | Enables integrated temperature monitoring alongside cell voltage - reduces component count in BMS PCB layout |
Applications
| E-Bike Battery Pack | Power Tool Battery Pack |
|---|---|
|
Use Scenario: Monitoring individual cell voltages and temperature in a 36 V (10S) e-bike battery pack with embedded protection circuitry. IC Role / Device Role / Timing Role: Analog multiplexer routing cell voltages to MCU ADC; AUX7/AUX8 read NTC thermistors for thermal cutoff. Use Value: Enables precise per-cell SOC estimation and overtemperature shutdown - meeting UL 2271 safety requirements. |
Use Scenario: Real-time voltage sampling across 5–6 series Li-ion cells in cordless drill battery packs with fast-charge capability. IC Role / Device Role / Timing Role: Sequential cell scanning via A/B/C/D logic; VOUT feeds 12-bit ADC for dynamic load compensation. Use Value: Supports 20-ms full-stack scan cycle - sufficient for active balancing trigger response under high-current discharge. |
| Medical Portable Equipment Battery | Industrial UPS Backup Module |
|
Use Scenario: Voltage and temperature supervision in sealed 24 V (6S) Li-polymer packs powering portable ultrasound devices. IC Role / Device Role / Timing Role: Low-power monitoring IC in always-on subsystem; shutdown mode activated during device sleep. Use Value: 1.0 µA shutdown current extends shelf life and preserves charge during long-term storage. |
Use Scenario: Cell-level telemetry in 48 V (13S) industrial UPS modules requiring redundancy and fault logging. IC Role / Device Role / Timing Role: Dual AP9106 configuration (11-cell + 2-cell) with BLO/CLO/DLO handshaking for synchronized readout. Use Value: Eliminates timing skew between chips - ensures coherent snapshot of entire stack for SOC/SOH algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-cell battery monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL94203 by Renesas | Integrated 12-bit ADC, built-in Coulomb counter, and SMBus interface - no external MCU ADC required | Targets higher-end BMS with autonomous telemetry; requires SMBus host controller | Choose when replacing MCU-based ADC sampling with self-contained measurement subsystem |
| BQ76952 by Texas Instruments | 16-channel analog front-end with integrated LDO, watchdog, and hardware protection (OV/UV/OT/UT) | Designed for automotive-grade ASIL-B compliance; includes independent safety monitor | Choose for safety-critical applications requiring redundant voltage monitoring and fail-safe shutdown |
Compared with ISL94203 and BQ76952, AP9106GTR-G1 provides minimal-footprint, low-quiescent analog switching without integrated conversion or protection - ideal for cost-sensitive, MCU-managed battery packs where flexibility and discrete signal routing are prioritized.
Availability
AP9106GTR-G1 is available at Aetrix Electronics and suitable for e-bike battery packs, power tool battery packs, medical portable equipment batteries, and industrial UPS backup modules requiring stable component supply and RoHS-compliant packaging.
Supply support for AP9106GTR-G1 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 for power management, signal integrity, and connectivity applications.
The AP9106 belongs to Diodes' battery management analog switch product line, engineered specifically for scalable, low-power cell voltage and temperature monitoring in multi-cell Li-ion and Li-polymer battery packs.
FAQ
What is the maximum number of battery cells supported by a single AP9106GTR-G1?
A single AP9106GTR-G1 supports up to six series-connected Li+/polymer cells using its B0–B6 pins as differential node interfaces. The truth table confirms direct mapping of B1–B6 to CELL1–CELL6, with each channel measuring voltage across adjacent nodes (e.g., B1 vs. B0, B2 vs. B1). This enables full-stack monitoring without external resistive dividers.
How does the AP9106GTR-G1 handle temperature sensing?
The AP9106GTR-G1 uses AUX7 and AUX8 pins as dedicated auxiliary analog inputs referenced to B0/GND. When connected to NTC thermistors in voltage-divider configurations, their output appears on VOUT alongside cell voltages. The datasheet confirms these channels share the same ±1% matching and 2.0–4.5 V input range as main cell inputs - enabling calibrated temperature-to-voltage conversion.
Can AP9106GTR-G1 operate without an external level shifter for logic inputs?
Yes. The AP9106GTR-G1 integrates a VL pin that supplies level-shift logic circuitry, allowing A/B/C/D inputs to accept standard TTL/CMOS levels (0–5 V) even when VDD exceeds 5 V. With VL ≥ VDD, internal translation ensures correct decoding without external components - confirmed by VIH/VIL specs and functional block diagram.
Is AP9106GTR-G1 still in production or recommended for new designs?
Per Diodes Incorporated's official documentation (DS41468 Rev. 2–4), AP9106 is marked "OBSOLETE – PART DISCONTINUED" with "NO ALTERNATE PART." While Aetrix Electronics maintains limited legacy stock for replacement and maintenance use, Diodes does not recommend it for new designs. Engineers should evaluate ISL94203 or BQ76952 for future projects requiring similar functionality.
AP9106GTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Power Management
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1 ~ 6
- Fault Protection:
- -
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
AP9106GTR-G1 FAQ
1.How can I place an order for AP9106GTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9106GTR-G1 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 AP9106GTR-G1 reliable?
The price and inventory of AP9106GTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9106GTR-G1 is usually 5 days.
3.What payment methods are accepted for AP9106GTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9106GTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9106GTR-G1?
AP9106GTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9106GTR-G1 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 AP9106GTR-G1?
For technical support, including AP9106GTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9106GTR-G1 requirements.
6.How does Aetrix verify that AP9106GTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP9106GTR-G1 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 AP9106GTR-G1 meets industry standards.
7.What is the process for return or replacement of AP9106GTR-G1?
All AP9106GTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP9106GTR-G1, 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 AP9106GTR-G1 part is unused and in its original packaging.
Return procedure for AP9106GTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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