My Inquiry
My Account
Analog Devices Inc. ADUC7039WBCPZ-RL
- Part No.:
- ADUC7039WBCPZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADUC7039WBCPZ-RL.pdf
- Description:
- IC MCU 16/32B 64KB FLASH 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,036
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUC7039WBCPZ-RL from Analog Devices is an automotive-qualified, integrated precision battery sensor IC featuring dual 16-bit Σ-Δ ADCs (current and voltage channels), ARM7TDMI-S MCU core running at 20.48 MHz, on-chip 5 ppm/°C voltage reference, LIN 2.1 slave interface, and direct 12 V battery supply operation - deployed in battery monitoring systems for 12 V lead-acid and Li-ion automotive applications.
For engineers reviewing the ADUC7039WBCPZ-RL datasheet, ADUC7039WBCPZ-RL pinout, ADUC7039WBCPZ-RL application, or ADUC7039WBCPZ-RL equivalent, key selection considerations include simultaneous current/voltage/temperature acquisition accuracy (±10 ppm INL), LIN-compliant communication under 7–18 V VDD, −40°C to +115°C operation, and integrated power regulation with REG_AVDD/REG_DVDD outputs.
Technical Context
The ADUC7039WBCPZ-RL integrates a precision analog front-end with two independent 16-bit Σ-Δ ADCs: one fully differential current channel (−200 mV to +300 mV input, programmable gain up to 512) and one buffered voltage channel with on-chip 24:1 resistive attenuator for 4–18 V battery input. It includes digital comparator with accumulator for current integration and supports self-calibration of offset/gain per channel.
Its ARM7TDMI-S core executes from 64 kB Flash/EE memory (10,000-cycle endurance, 20-year retention) and interfaces via SPI, GPIO, and SAE J2602/LIN 2.1-compliant physical layer. Power management includes low-power monitor mode (750 µA typical), on-chip POR, and dual regulated supplies (REG_AVDD/REG_DVDD = 2.6 V ±50 mV).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 16-bit simultaneous sampling across current, voltage, and temperature channels - enables high-precision Coulomb counting and state-of-charge estimation. |
| Current Channel Input Range | −200 mV to +300 mV differential, with programmable PGA gains (4–512) - supports shunt-based current sensing down to ±2.3 mV full-scale at highest gain. |
| Voltage Channel Input Range | 4 V to 18 V direct battery input via integrated 24:1 attenuator - eliminates need for external scaling resistors in 12 V automotive systems. |
| Integral Nonlinearity | ±10 ppm of FSR (typical) for all three ADC channels - ensures <0.0005% measurement error critical for battery health diagnostics. |
| Operating Temperature | −40°C to +115°C ambient - fully qualified for under-hood automotive deployment per AEC-Q100 requirements. |
| LIN Interface Compliance | SAE J2602 / LIN 2.1 slave, 1–20 kbps baud rate, 7–18 V VDD supply range - enables direct connection to vehicle body control modules without level-shifting. |
| Power Supply | Direct 3.5–18 V battery input; internal LDOs generate REG_AVDD and REG_DVDD (2.6 V ±50 mV) - simplifies power architecture and reduces BOM count. |
Pinout & Package
ADUC7039WBCPZ-RL is housed in a 32-pin, 6 mm × 6 mm LFCSP package with exposed pad (EPAD) internally connected to DGND. Pin functions are validated per Analog Devices Rev. D datasheet (pages 10–11), including dedicated analog/digital ground separation (AGND/DGND), dual regulated supply outputs (REG_AVDD/REG_DVDD), and LIN transceiver I/O.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Internal weak pull-up to REG_DVDD; enables robust system recovery without external RC network. |
| IIN+, IIN− | Differential current sense inputs | Fully buffered, high-Z inputs supporting Kelvin-connected shunts; enable accurate bidirectional current measurement. |
| VBAT | Battery supply input | Accepts 3.5–18 V directly; powers internal regulators and LIN transceiver - no external DC/DC required. |
| LIN | LIN bus I/O | Integrated physical layer compliant with SAE J2602; supports dominant/recessive signaling and short-circuit protection. |
| GPIO_4/IRQ1 | Configurable interrupt pin | Hardware interrupt source for ADC conversion complete or LIN event - reduces MCU polling overhead. |
| REG_AVDD, REG_DVDD | Analog/digital regulated outputs | Stable 2.6 V supplies (±50 mV) with 1 mA / 5 mA sourcing capability - powers external sensors or ADC references. |
Key Features
| Feature | Design Value |
|---|---|
| Dual simultaneous 16-bit Σ-Δ ADCs | Enables time-aligned current/voltage sampling for real-time battery impedance calculation and dynamic SoC modeling. |
| On-chip 5 ppm/°C voltage reference | Eliminates external reference IC; maintains ADC accuracy over full −40°C to +115°C automotive temperature range. |
| LIN 2.1 slave interface | Reduces system cost and complexity by integrating transceiver, protocol engine, and diagnostic support in single die. |
| Integrated power regulation | Single-supply operation from 12 V battery with internal LDOs - removes need for discrete regulators and associated filtering components. |
| ARM7TDMI-S core + 64 kB Flash | Supports firmware-upgradable battery algorithms (e.g., aging compensation, thermal derating) without external microcontroller. |
Applications
| 12 V Battery State Monitoring | Start-Stop System Supervision |
|---|---|
Use Scenario: Continuous measurement of battery terminal voltage, shunt current, and die temperature during engine cranking and idle-stop cycles. IC Role / Device Role / Timing Role: Primary battery sensor IC performing synchronized analog acquisition and LIN-based reporting every 100 ms. Use Value: Delivers ±0.5% SoC accuracy over lifetime using factory-calibrated ADCs and on-chip reference stability. |
Use Scenario: Real-time assessment of battery health prior to engine restart in micro-hybrid vehicles. IC Role / Device Role / Timing Role: Standalone battery evaluator executing impedance spectroscopy routines during vehicle coast-down phase. Use Value: Enables predictive start-failure alerts by detecting sulfation and capacity loss via multi-gain current channel analysis. |
| EV 12 V Auxiliary Battery Management | Commercial Vehicle Telematics Power Monitoring |
Use Scenario: Monitoring auxiliary lead-acid battery powering infotainment and ADAS ECUs in BEV platforms. IC Role / Device Role / Timing Role: Dedicated sensor node communicating battery status via LIN to gateway ECU for cloud telemetry upload. Use Value: Maintains >15-year data retention in Flash/EE memory for regulatory compliance logging of battery degradation trends. |
Use Scenario: Fleet telematics units tracking battery drain during extended parking periods in trucks and buses. IC Role / Device Role / Timing Role: Low-power monitor mode (750 µA) with wake-up timer triggers periodic LIN reports only when voltage drops below threshold. Use Value: Extends backup battery life by >3× versus continuous-sampling alternatives while preserving fault detection latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17205 | 16-bit delta-sigma ADC, fuel gauge algorithm IP, I²C interface only - no LIN or ARM core. | Targeted at portable electronics; lacks automotive temp range and battery-supplied operation. | Choose for compact consumer-grade battery packs where LIN connectivity and extended temperature are not required. |
| TI BQ76952 | 16-bit ADC, integrated cell balancing, CAN/LIN support, but requires external 3.3 V supply - no direct 12 V input. | Designed for multi-cell Li-ion packs; lacks dedicated current channel PGA and on-chip voltage reference. | Prefer for high-voltage EV battery packs needing active balancing; avoid when 12 V direct-supply simplicity is mandatory. |
Compared with MAX17205 and BQ76952, ADUC7039WBCPZ-RL uniquely combines LIN-native communication, direct 12 V operation, dual-channel simultaneous sampling, and automotive-grade temperature range in a single chip - reducing system-level BOM count and qualification effort for 12 V battery monitoring.
Availability
ADUC7039WBCPZ-RL is available at Aetrix Electronics and suitable for automotive battery management, start-stop system supervision, and commercial vehicle telematics requiring stable component supply across extended temperature and long product lifecycles.
Supply support for ADUC7039WBCPZ-RL 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision signal chain solutions.
The ADuC70xx family was designed specifically for automotive battery sensing and embedded power monitoring - integrating precision analog acquisition, LIN connectivity, and flash-programmable MCU functionality into a single AEC-Q100-qualified device.
FAQ
What is the operating voltage range for ADUC7039WBCPZ-RL?
ADUC7039WBCPZ-RL operates directly from a 3.5 V to 18 V battery supply, eliminating the need for external DC/DC converters. Its internal LDOs generate stable REG_AVDD and REG_DVDD (2.6 V ±50 mV) for analog and digital circuitry. This wide input range supports nominal 12 V automotive systems, cold-cranking dips, and load-dump transients without external protection circuitry.
Does ADUC7039WBCPZ-RL support simultaneous sampling across current and voltage channels?
Yes, ADUC7039WBCPZ-RL features dual 16-bit Σ-Δ ADCs that perform true simultaneous sampling on the current channel (IIN+/IIN−) and voltage channel (VBAT via attenuator). This synchronization enables precise real-time calculation of battery internal resistance and dynamic state-of-charge without time-skew errors inherent in multiplexed architectures.
How is LIN communication implemented in ADUC7039WBCPZ-RL?
ADUC7039WBCPZ-RL integrates a SAE J2602/LIN 2.1-compliant physical layer and protocol engine. The single LIN pin handles both transmit and receive functions, supports 1–20 kbps baud rates, and operates across 7–18 V VDD. Internal short-circuit protection disconnects the LIN driver within 90 µs during fault conditions - meeting automotive reliability requirements without external components.
What is the accuracy of the on-chip voltage reference in ADUC7039WBCPZ-RL?
ADUC7039WBCPZ-RL includes an on-chip 1.2 V reference with ±0.15% initial accuracy at 25°C and ±5 ppm/°C temperature coefficient (−40°C to +115°C). This 5 ppm/°C drift specification ensures ADC measurement stability across automotive temperature extremes - removing dependency on external references and associated layout sensitivity.
Can ADUC7039WBCPZ-RL operate in low-power modes for extended battery monitoring?
Yes, ADUC7039WBCPZ-RL supports multiple low-power states: in monitor mode with ADC active, it draws just 750 µA (typical); with precision oscillator off and only wake-up/watchdog timers running from the 128 kHz low-power oscillator, current drops to 95–175 µA. These modes enable years of operation on backup batteries while maintaining fast wake-up response for fault detection.
ADUC7039WBCPZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 32-VFQFN Exposed Pad, CSP
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM7®
- Core Size:
- 16/32-Bit
- Speed:
- 20.48MHz
- Connectivity:
- LINbus, SPI
- Peripherals:
- POR, Temp Sensor, WDT
- Number of I/O:
- 6
- Program Memory Size:
- 64KB (32K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 32
- Voltage - Supply (Vcc/Vdd):
- 3.5V ~ 18V
- Data Converters:
- A/D 2x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 115°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
ADUC7039WBCPZ-RL FAQ
1.How can I place an order for ADUC7039WBCPZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUC7039WBCPZ-RL 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 ADUC7039WBCPZ-RL reliable?
The price and inventory of ADUC7039WBCPZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUC7039WBCPZ-RL is usually 5 days.
3.What payment methods are accepted for ADUC7039WBCPZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUC7039WBCPZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUC7039WBCPZ-RL?
ADUC7039WBCPZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUC7039WBCPZ-RL 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 ADUC7039WBCPZ-RL?
For technical support, including ADUC7039WBCPZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUC7039WBCPZ-RL requirements.
6.How does Aetrix verify that ADUC7039WBCPZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUC7039WBCPZ-RL 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 ADUC7039WBCPZ-RL meets industry standards.
7.What is the process for return or replacement of ADUC7039WBCPZ-RL?
All ADUC7039WBCPZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUC7039WBCPZ-RL, 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 ADUC7039WBCPZ-RL part is unused and in its original packaging.
Return procedure for ADUC7039WBCPZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUC7039WBCPZ-RL Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
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…
