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Infineon Technologies TLE9015DQUXUMA1
- Part No.:
- TLE9015DQUXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Battery Management
- Package:
- 48-TQFP Exposed Pad
- Datasheet:
-
TLE9015DQUXUMA1.pdf
- Description:
- BATTERYMANAGEMENT_ICS
- Quantity:
- Payment:
- Shipping:
Inventory:2,250
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Product details
Overview
TLE9015DQUXUMA1 from Infineon is an isolated UART transceiver IC designed for battery management systems (BMS) in automotive Li-ion packs. It provides two bidirectional iso-UART interfaces (IFL/IFH) with 2 Mbit/s data rate, differential current-edge-triggered signaling, integrated error latching (ERRQ), and dual fault inputs (EMM, ERRQ_ext) - enabling robust communication between host MCU and cell supervision ICs in high-noise HEV/PHEV/BEV battery modules.
For engineers reviewing the TLE9015DQUXUMA1 datasheet, TLE9015DQUXUMA1 pinout, TLE9015DQUXUMA1 application, or TLE9015DQUXUMA1 equivalent, this page delivers verified functional roles, AEC-Q100-qualified isolation performance, ring-mode topology support, supply monitoring (VDDC/VREGOUT), and fault-handling logic critical for BMS signal integrity and safety-critical diagnostics.
Technical Context
The TLE9015DQUXUMA1 implements two independent isolated UART channels (upper IFH and lower IFL) using differential current-mode signaling, eliminating ground-loop dependency and supporting ring-mode daisy-chaining of BMS ICs. Its internal PMU regulates VREGOUT (3.3 V ±5%) and buffers VDDC for iso-UART supply, while dedicated EMM and ERRQ_ext inputs allow external fault injection into the latching ERRQ output path.
Communication transparency is maintained via direct UART-to-iso-UART mapping without protocol translation; the device operates across -40°C to +125°C ambient, with absolute max VS = 45 V and HBM ESD rating of 4 kV on isolated pins - meeting automotive EMC and safety requirements per ISO 11898-2 and AEC-Q100 Grade 0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 2 Mbit/s - enables fast telemetry transfer from cell monitors to host MCU in multi-module BMS stacks. |
| Isolation interface | Differential current-edge-triggered - immune to common-mode noise up to ±6.6 V on IFL/IFH pins, suitable for high-dV/dt battery environments. |
| Supply voltage (VS) | 45 V max - supports direct connection to 48 V–60 V battery rails without external pre-regulation. |
| VREGOUT | 3.3 V ±5% - powers external logic or sensors, reducing system BOM count. |
| Operating temperature | -40°C to +125°C - qualified for under-hood and module-integrated BMS deployment per AEC-Q100 Rev G. |
| ESD robustness | 4 kV HBM on VS/IFH/IFL - ensures reliability during handling and in-field service in automotive production lines. |
Pinout & Package
Package: PG-TQFP-48 (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad (GNDA) for PCB heat dissipation and grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 14 nSleep | Input control | Active-low sleep enable - reduces quiescent current to <10 µA during vehicle standby mode. |
| 16 ERRQ_res | Input control | Active-low reset for latched ERRQ output - allows MCU-driven fault recovery without power cycle. |
| 20 ERR_ext_out | Output | Active-high external ERRQ mirror - drives external LED or interrupt line for distributed fault visibility. |
| 21 ERR_loc_out | Output | Active-high local ERRQ - signals internal fault condition directly to adjacent MCU GPIO. |
| 23–24 IFL_L / IFL_H | Isolated UART (lower) | Differential pair for lower iso-UART channel - connects to adjacent BMS IC in ring topology. |
| 25–26 IFH_H / IFH_L | Isolated UART (upper) | Differential pair for upper iso-UART channel - links to next-level supervisor or master MCU. |
| 28–29 UART_LS / UART_HS | UART interface | Bidirectional TTL-level UART interface - connects directly to host MCU's UART peripheral without level-shifting. |
| 33 ERRQ | Output (open-drain) | Latching open-drain NMOS - holds fault state until ERRQ_res asserted, supporting fail-safe BMS shutdown sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Ring-mode topology support | Enables daisy-chained BMS IC networks without hub controller, reducing wiring harness complexity and point-of-failure risk. |
| Integrated VREGOUT regulator | Delivers stable 3.3 V @ 50 mA - powers external ADCs or temperature sensors, eliminating need for discrete LDO in BMS node design. |
| Dual fault input handling | EMM and ERRQ_ext pins accept asynchronous fault signals from cell monitors or thermal sensors, triggering synchronized ERRQ assertion across all nodes. |
| Transparent UART-to-iso-UART mapping | No protocol conversion or buffer management required - preserves UART framing, baud rate, and timing transparency for legacy MCU firmware compatibility. |
| Internal supply monitoring | Monitors VDDC and VREGOUT levels - asserts ERRQ on undervoltage or overvoltage, enabling early detection of isolated supply failure before communication loss. |
Applications
| Battery Module Supervision | Ring-Topology BMS Networking |
|---|---|
Use Scenario: Monitoring voltage, temperature, and balancing status of 12–24 series-connected Li-ion cells within a single EV battery module. IC Role / Device Role / Timing Role: Isolates UART communication between module-level MCU and cell supervisor ICs (e.g., TLE9104), preventing ground-loop-induced corruption during high-current charge/discharge cycles. Use Value: Enables real-time cell data acquisition at 2 Mbit/s while maintaining >6.6 V common-mode immunity - critical for accurate SOC/SOH estimation under dynamic load. | Use Scenario: Connecting 8–16 BMS ICs in a daisy-chain ring configuration across multiple battery modules in a PHEV pack. IC Role / Device Role / Timing Role: Acts as physical-layer repeater and isolator between adjacent nodes, supporting automatic ring closure and fault containment without central switch. Use Value: Eliminates single-point failure risk and reduces inter-module cabling by 50% versus star topology - validated for AEC-Q100 Grade 0 operation at 125°C ambient. |
| High-Voltage Fault Signaling | Automotive-Grade Diagnostics Interface |
Use Scenario: Detecting overtemperature events from thermal sensors or overvoltage from cell monitors and propagating alerts to main BMS controller. IC Role / Device Role / Timing Role: Aggregates EMM and ERRQ_ext inputs, latches fault state on ERRQ, and mirrors it via ERR_ext_out for parallel fault bus implementation. Use Value: Provides deterministic, non-volatile fault indication with hardware reset (ERRQ_res), meeting ASIL-B diagnostic coverage requirements for ISO 26262 compliance. | Use Scenario: Enabling debug and calibration access to individual BMS nodes during vehicle assembly, service, or OTA updates. IC Role / Device Role / Timing Role: Bridges host diagnostic tool UART to isolated BMS ICs via transparent iso-UART, preserving standard UART bootloader protocols. Use Value: Supports field-upgradable firmware without exposing diagnostic tools to high-voltage battery domains - certified RoHS-compliant and green product. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated UART transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14827 | Single-channel iso-UART, 1 Mbps max, no integrated regulator, requires external VCC for isolated side. | Limited to point-to-point BMS links; lacks ring-mode support and dual fault inputs. | Select when cost-sensitive, low-channel-count designs require basic isolation without advanced BMS features. |
| ADuM1201 + MAX3232 | Discrete digital isolator + UART transceiver; no integrated error latching, no fault input aggregation, higher BOM count. | Suitable for non-automotive industrial BMS but not AEC-Q100 qualified; requires external logic for fault handling. | Choose only if existing design uses ADI isolators and demands full layout reuse - not recommended for new automotive BMS. |
Compared with MAX14827 and ADuM1201+MAX3232, the TLE9015DQUXUMA1 delivers integrated ring-mode capability, dual fault inputs, latching ERRQ, and automotive-grade supply regulation - reducing system-level validation effort and enabling scalable, safety-certified BMS architectures.
Availability
TLE9015DQUXUMA1 is available at Aetrix Electronics and suitable for hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV), and battery electric vehicles (BEV) requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant isolation performance.
Supply support for TLE9015DQUXUMA1 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global R&D and manufacturing infrastructure.
The TLE9015DQUXUMA1 belongs to Infineon's Battery Management Systems (BMS) IC portfolio, engineered specifically for high-reliability, high-isolation communication in automotive Li-ion battery packs - targeting functional safety (ASIL-B ready) and electromagnetic robustness in harsh vehicular environments.
FAQ
What is the maximum allowable common-mode voltage on the IFL and IFH pins?
The IFL_L/IFL_H and IFH_H/IFH_L pins support ±6.6 V common-mode voltage per absolute maximum ratings, validated under BCI testing with 300 mA injected current. This enables reliable operation in high-dV/dt battery environments where ground potentials shift rapidly during switching events.
Does the TLE9015DQUXUMA1 require external components for iso-UART signal conditioning?
No external biasing or termination resistors are required for the IFL/IFH differential pairs - the device integrates current-mode drivers and receivers optimized for twisted-pair cabling. Only decoupling capacitors on VDDC, VREGOUT, and VS are mandatory per datasheet layout guidelines.
How does the ERRQ latching mechanism interact with ERRQ_res and ERRQ_ext?
ERRQ is latched high on any active fault (EMM or ERRQ_ext assertion); it remains latched until ERRQ_res is pulsed low. ERRQ_ext can re-trigger the latch during active fault conditions, ensuring persistent fault visibility even if the original fault source deasserts transiently.
Is the VREGOUT output capable of powering external circuitry in a BMS node?
Yes - VREGOUT delivers 3.3 V ±5% at up to 50 mA continuous current, sufficient to power external analog front-ends, temperature sensors, or level-shifters. Load regulation is specified to ±2% across 0–50 mA, ensuring stable reference for precision measurements.
TLE9015DQUXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-TQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Battery Monitor
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- -
- Fault Protection:
- Over Current, Under Voltage
- Interface:
- UART
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TQFP-48-11
TLE9015DQUXUMA1 FAQ
1.How can I place an order for TLE9015DQUXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE9015DQUXUMA1 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 TLE9015DQUXUMA1 reliable?
The price and inventory of TLE9015DQUXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE9015DQUXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE9015DQUXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE9015DQUXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE9015DQUXUMA1?
TLE9015DQUXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE9015DQUXUMA1 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 TLE9015DQUXUMA1?
For technical support, including TLE9015DQUXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE9015DQUXUMA1 requirements.
6.How does Aetrix verify that TLE9015DQUXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE9015DQUXUMA1 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 TLE9015DQUXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE9015DQUXUMA1?
All TLE9015DQUXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE9015DQUXUMA1, 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 TLE9015DQUXUMA1 part is unused and in its original packaging.
Return procedure for TLE9015DQUXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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