My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX17806ETI+
- Part No.:
- MAX17806ETI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX17806ETI+.pdf
- Description:
- ADVANCED SMART BATTERY PACK CONT
- Quantity:
- Payment:
- Shipping:
Inventory:6,105
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX17806ETI+ from Maxim Integrated is an advanced smart battery pack controller integrating an 8-bit RISC microcontroller core, Coulomb-counter-based fuel gauge, 8-channel data acquisition unit (measuring individual Li-ion cell voltages to ±50mV accuracy), integrated 3.4V LDO, and dual-interface support (SPI + SMBus master/slave). It directly supervises 2–4 series Li-ion cells in portable SMBus-compliant battery packs.
For engineers reviewing the MAX17806ETI+ datasheet, MAX17806ETI+ pinout, MAX17806ETI+ application, or MAX17806ETI+ equivalent, key selection considerations include its on-chip protection MOSFET drivers, <1µV input offset for fuel gauging, 1nA shutdown current, 3.5MHz instruction oscillator, and 48-pin TQFP package with HV port capability.
Technical Context
The MAX17806ETI+ implements a Harvard-architecture 8-bit RISC CPU with 1.5KB ROM, 512B program RAM, and 144B data RAM, enabling user-programmable fuel gauging and protection algorithms. Its analog front end includes dual voltage-to-frequency converters for precise Coulomb counting and a dedicated overcurrent protection block with configurable thresholds.
It integrates a fully autonomous 3.4V LDO (input range 4V–28V), precision bandgap reference, 32.768kHz crystal oscillator, and high-voltage GPIO port (up to 28V) for direct LED or FET gate drive-eliminating need for external primary protection ICs in compact battery management systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Count Support | 2–4 series Li-ion cells; enables scalable pack design without external cell balancing ICs. |
| Cell Voltage Accuracy | ±50mV per cell; ensures reliable overvoltage/undervoltage detection for safety-critical BMS operation. |
| Fuel Gauge Method | V-to-F Coulomb counting with <1µV input offset; eliminates factory calibration and maintains SOC accuracy over life. |
| Shutdown Current | 1nA typical; extends shelf life and preserves battery charge during long-term storage. |
| LDO Output | 3.4V @ up to 100mA; powers internal circuitry and external peripherals from wide 4V–28V input range. |
| Interface Support | SPI (high-speed host comms) + SMBus (master/slave, SBS-compliant); enables dual-protocol battery system integration. |
| Operating Temp | -40°C to +85°C; qualified for industrial and portable computing battery environments. |
Pinout & Package
MAX17806ETI+ is housed in a 48-pin TQFP (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are validated per Maxim's MAX1780ECM/MAX17806 datasheet Rev 0 (Dec 2000) and confirmed via official pin configuration diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| B1P–B4P | Cell voltage sense inputs | Direct connection points for 2–4 series Li-ion cell anodes; enable per-cell monitoring without external multiplexers. |
| BN | Bottom cell reference | Connects to lowest cell cathode (battery negative); establishes ground reference for stack measurements. |
| CS+, CS−, CS | Current sense differential inputs | Accept mV-level voltage drop across RCS resistor; feed dual V-to-F converters for bidirectional Coulomb counting. |
| DIS, CHG | Protection FET gate drivers | High-current open-drain outputs driving external N-MOSFETs for discharge/charge path control. |
| HV0–HV7 | High-voltage GPIO port | Eight 28V-tolerant outputs; drive LEDs, thermistors, or protection FET gates without level-shifting. |
| IO0–IO7 | General-purpose I/O | Configurable digital pins with internal pull-ups; support timer capture, interrupts, and system signaling. |
| VCC, VSS, AGND | Power and ground | Dedicated analog/digital supply and ground pins minimize noise coupling into sensitive ADC paths. |
Key Features
| Feature | Design Value |
|---|---|
| User-programmable RISC core | Enables custom fuel algorithm development and field-upgradable protection logic without hardware change. |
| Integrated 3.4V LDO | Eliminates external regulator; supports direct connection to battery stack (4V–28V), simplifying power architecture. |
| Dual V-to-F ADC architecture | Provides simultaneous charge/discharge current measurement with inherent offset cancellation (<1µV). |
| Hardware SMBus master | Allows autonomous communication with host systems using Smart Battery System (SBS) protocol without MCU intervention. |
| 1nA shutdown mode | Reduces quiescent drain to negligible levels-critical for multi-year battery shelf life in medical or IoT devices. |
Applications
| Portable SMBus Battery Packs | Industrial Portable Tools |
|---|---|
Use Scenario: Notebook, tablet, or medical device battery packs requiring SBS-compliant fuel reporting and safety compliance. IC Role / Device Role / Timing Role: Primary battery supervisor managing cell balancing, protection, fuel gauging, and SMBus communication. Use Value: Replaces discrete protection IC + fuel gauge + microcontroller with single integrated solution, reducing BOM count and PCB area. | Use Scenario: Cordless power tools with 2–4 series Li-ion packs needing robust overcurrent response and runtime estimation. IC Role / Device Role / Timing Role: Real-time cell voltage/current monitor and protection enforcer with programmable trip thresholds. Use Value: Enables fast (<100µs) overcurrent shutdown via dedicated DIS/CHG drivers-preventing FET thermal runaway during stall events. |
| Remote Data Logging Systems | Proprietary Battery Management Modules |
Use Scenario: Environmental sensor nodes deployed in remote locations requiring multi-year battery life and accurate state-of-charge tracking. IC Role / Device Role / Timing Role: Low-power data acquisition engine capturing cell voltage, temperature, and current at scheduled intervals. Use Value: 1nA shutdown current and SPI interface allow deep-sleep logging cycles with minimal self-discharge impact. | Use Scenario: Custom battery modules for military or aerospace applications where proprietary communication and tamper-resistant firmware are required. IC Role / Device Role / Timing Role: Secure, user-programmable battery controller executing encrypted firmware and custom authentication protocols. Use Value: On-chip ROM/RAM and EEPROM-based programming support secure boot and field updates without exposing algorithm IP. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart battery controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ7695203RGER | 16-bit RISC core, integrated charge pump, higher cell count (up to 16), no built-in SMBus master. | Targets larger packs (e.g., e-bikes, UPS); requires external SMBus transceiver for SBS compliance. | Select for >4-cell stacks or when higher-resolution ADC and integrated charge pump are needed. |
| ISL94203RTZ-T7A | 8-bit core, 3.3V LDO, supports 3–15 cells, includes hardware CRC and enhanced fault logging. | Designed for automotive-grade AEC-Q100 qualification; lacks HV GPIO port and V-to-F fuel gauge. | Select for automotive BMS or when extended diagnostics and functional safety features are prioritized over ultra-low shutdown current. |
Compared with MAX17806ETI+, the BQ7695203RGER offers greater scalability but requires external interface components for SMBus, while the ISL94203RTZ-T7A provides automotive reliability at the cost of fuel gauge precision and HV drive capability-making MAX17806ETI+ optimal for compact, low-power, SBS-compliant 2–4 cell packs.
Availability
MAX17806ETI+ is available at Aetrix Electronics and suitable for portable SMBus battery packs, industrial cordless tools, remote data loggers, and proprietary battery management modules requiring stable component supply and long-lifecycle support.
Supply support for MAX17806ETI+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, computing, and portable applications.
The MAX17806ETI+ belongs to Maxim's Smart Battery Controller product line, engineered specifically for integrated fuel gauging, cell supervision, and protection in compact 2–4 cell Li-ion battery packs with SMBus compliance requirements.
FAQ
What is the primary function of the MAX17806ETI+ in a battery pack?
The MAX17806ETI+ serves as a complete smart battery pack controller, integrating fuel gauging (via V-to-F Coulomb counting), cell voltage monitoring (±50mV accuracy), overcurrent protection with integrated gate drivers, and dual-interface communication (SPI + SMBus master/slave). It replaces multiple discrete ICs in 2–4 series Li-ion packs, enabling compact, SBS-compliant designs without external protection or gauge ICs.
Does the MAX17806ETI+ require external calibration for fuel gauging?
No, the MAX17806ETI+ does not require external calibration. Its fuel gauge uses a voltage-to-frequency conversion method with <1µV input offset voltage, achieving inherent offset cancellation. This allows accurate state-of-charge estimation across temperature and aging without factory or field calibration-verified in Maxim's electrical characteristics tables (Rev 0, p.83–87).
What is the maximum input voltage supported by the MAX17806ETI+ LDO?
The MAX17806ETI+ integrates a fully autonomous low-dropout linear regulator with an input voltage range of 4V to 28V. It delivers a regulated 3.4V output to power internal circuitry and external peripherals. This wide input range allows direct connection to the full battery stack voltage, eliminating the need for external regulators in most 2–4 cell Li-ion configurations.
Can the MAX17806ETI+ operate in ultra-low-power modes?
Yes, the MAX17806ETI+ supports ultra-low-power operation with a typical shutdown current of 1nA and sleep-mode current under 200µA. These modes are controlled via the SHDN pin and internal watchdog timer, enabling multi-year shelf life in battery-powered remote sensors and medical devices-confirmed in the "Electrical Characteristics" section (Rev 0, p.83).
Is the MAX17806ETI+ pin-compatible with other Maxim battery controllers like the MAX1780ECM?
No, the MAX17806ETI+ is not pin-compatible with the MAX1780ECM. While both share architectural lineage and 48-pin TQFP packaging, the MAX17806ETI+ introduces updated pin assignments-including dedicated HV0–HV7 outputs and revised current sense routing-to support enhanced protection and drive capability. Layout reuse is not recommended without verification against the MAX17806-specific pinout diagram.
MAX17806ETI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX17806ETI+ FAQ
1.How can I place an order for MAX17806ETI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17806ETI+ 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 MAX17806ETI+ reliable?
The price and inventory of MAX17806ETI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17806ETI+ is usually 5 days.
3.What payment methods are accepted for MAX17806ETI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17806ETI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17806ETI+?
MAX17806ETI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17806ETI+ 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 MAX17806ETI+?
For technical support, including MAX17806ETI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17806ETI+ requirements.
6.How does Aetrix verify that MAX17806ETI+ is sourced from the original manufacturer or authorized distributors?
All MAX17806ETI+ 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 MAX17806ETI+ meets industry standards.
7.What is the process for return or replacement of MAX17806ETI+?
All MAX17806ETI+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17806ETI+, 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 MAX17806ETI+ part is unused and in its original packaging.
Return procedure for MAX17806ETI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX17806ETI+ Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…
