Infineon Technologies TLE6285GDUMA1

Overview

TLE6285GDUMA1 from Infineon Technologies is a LIN transceiver with integrated 5 V ±2% low-dropout voltage regulator, designed for automotive body electronics. It provides single-wire bus communication up to 20 kBaud, supports LIN 1.3/2.0 and ISO 9141 protocols, features sleep-mode current control via INHO output, and delivers 150 mA regulated output with overtemperature protection across –40 °C to +125 °C.

For engineers reviewing the TLE6285GDUMA1 datasheet, TLE6285GDUMA1 pinout, TLE6285GDUMA1 application in LIN master/slave nodes, or TLE6285GDUMA1 equivalent for automotive body control modules, this device offers verified bus fault tolerance (short-to-battery/ground), adjustable reset threshold (3.5–4.6 V), and integrated 30 kΩ bus pull-up - critical for ECU power management and wake-up signaling in battery-constrained systems.

Technical Context

The TLE6285GDUMA1 integrates two functional blocks: a LIN physical layer transceiver with dominant-state LOW signaling and an independent PNP-based LDO regulator. Its ENLIN input controls mode transitions between normal, standby, and sleep states, while INHO provides active-low control of external regulators to reduce system quiescent current.

Bus termination is internally implemented with a 30 kΩ pull-up to VBAT and reverse-voltage diode protection on BUS pin. Reset behavior is externally programmable via RD capacitor and RTh voltage divider, enabling precise power-on and undervoltage detection timing aligned with microcontroller requirements.

Key Specifications

Pinout & Package

P-DSO-16-11 package: 16-pin exposed-pad SOIC with thermal pad on underside; pin 1 marked by notch; GND pins (1, 8, 9, 16) serve as thermal and electrical reference points.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LIN transceiver with integrated regulator applications.

Compared with TLIN1029DR and MC33661EGR2, the TLE6285GDUMA1 uniquely combines adjustable reset configuration, dedicated INHO regulator control, and proven AEC-Q100 Grade 1 performance in P-DSO-16-11 - making it optimal for cost-sensitive, thermally constrained LIN slave nodes requiring precise power sequencing.

Availability

TLE6285GDUMA1 is available at Aetrix Electronics and suitable for body control modules, door modules, roof control units, and seat control modules requiring stable component supply across automotive production lifecycles.

Supply support for TLE6285GDUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

The TLE6285GDUMA1 belongs to Infineon's automotive LIN transceiver product line, engineered specifically for robust, low-power body electronics communication in harsh vehicle environments.

FAQ

What is the function of the INHO pin?

The INHO pin is an active-low output that controls external voltage regulators during sleep mode. When the TLE6285GDUMA1 enters sleep (ENLIN = LOW), INHO goes LOW to disable external regulators, minimizing system quiescent current. Upon bus wake-up, INHO returns HIGH to re-enable regulation. This pin does not control the internal LDO - that is managed by INHI.

Can the TLE6285GDUMA1 be used as a LIN master node?

Yes, the TLE6285GDUMA1 can operate as a LIN master. An external 1 kΩ pull-up resistor must be added between BUS and VBAT to meet master node termination requirements per LIN specification. The internal 30 kΩ pull-up remains active but is insufficient alone; the external resistor ensures correct bus voltage levels during dominant and recessive states.

How is the reset delay time determined?

The reset delay time is set by an external capacitor connected between RD pin and GND. The delay follows τ ≈ R × C, where R is the internal discharge resistance (~1 MΩ). For example, a 100 nF capacitor yields ~100 ms delay. Capacitor tolerance and temperature coefficient directly affect timing accuracy, so X7R or C0G types are recommended for stable operation.

Is the VCCO output short-circuit protected?

No, the VCCO output is not short-circuit protected. The internal LDO relies on external current limiting or system-level fusing for overload protection. Under short-circuit conditions, VCCO will drop out and thermal shutdown may activate if junction temperature exceeds 160 °C. Designers must ensure downstream loads do not exceed 150 mA continuous or apply appropriate external current limiting.