STMicroelectronics ULQ2001D1013TR

Overview

ULQ2001D1013TR from STMicroelectronics is an automotive-grade seven-channel Darlington array in SO16 package, designed for high-voltage (50 V), high-current (500 mA per channel) switching of inductive loads. It integrates clamp diodes, supports TTL/CMOS/PMOS/DTL logic inputs, and operates across –40 °C to 105 °C ambient temperature. Used in engine control modules, body electronics, and relay drivers requiring AEC-Q100 compliance.

For engineers reviewing the ULQ2001D1013TR datasheet, ULQ2001D1013TR pinout, ULQ2001D1013TR application, or ULQ2001D1013TR equivalent, key selection criteria include output saturation voltage (≤1.6 V at 350 mA), input compatibility with 3.85 V TTL logic, integrated flyback diode capability, and SO16 thermal resistance (120 °C/W).

Technical Context

This device implements seven independent open-collector NPN Darlington pairs with common emitters and monolithically integrated suppression diodes - each channel rated for continuous 500 mA and peak 600 mA load current. The input pins are arranged opposite outputs to minimize PCB trace crosstalk and simplify routing in high-density automotive control boards.

It is qualified per AEC-Q100 Grade 1 (–40 °C to 125 °C junction), with validated PAT/SYL/SBL statistical reliability testing. Input thresholds are optimized for 5 V TTL logic (VI(ON) = 2.4–3.0 V), and output leakage remains ≤100 µA at 105 °C and 50 V VCE.

Key Specifications

Pinout & Package

ULQ2001D1013TR is housed in a 16-pin narrow SOIC (SO16) package with gull-wing leads, ECOPACK®-compliant, 1.27 mm pitch, and 10 mm × 4 mm footprint. Pin layout follows standard Darlington array convention with inputs on one side (pins 1–7, 16) and outputs on the opposite side (pins 10–16, excluding pin 9).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Darlington array applications.

Compared with ULN2003A and TBD62083AFG, ULQ2001D1013TR uniquely delivers automotive qualification, integrated clamp diodes, and matched 500 mA channel rating in a drop-in SO16 footprint - reducing validation effort and system-level failure risk in safety-critical vehicle subsystems.

Availability

ULQ2001D1013TR is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and industrial PLC output stages requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for ULQ2001D1013TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for automotive, industrial, and consumer markets.

The ULQ series targets automotive-grade interface and driver applications, specifically engineered to replace electromechanical relays with robust, space-efficient, and thermally managed solid-state alternatives in harsh-environment control systems.

FAQ

What is the maximum allowable junction temperature for ULQ2001D1013TR?

The absolute maximum junction temperature is 150 °C, verified per AEC-Q100 stress testing. With SO16 RthJA = 120 °C/W and ambient up to 105 °C, sustained 500 mA operation per channel requires ≤0.375 W total power dissipation - achievable with minimal copper pour or airflow.

Can outputs be paralleled, and what is the resulting current capability?

Yes - outputs may be paralleled to increase current capacity. Two channels combined deliver up to 1 A continuous (1.2 A peak), provided both share equal current via matched trace impedance and thermal coupling. Derating to 90% of sum is recommended for reliability at 105 °C ambient.

Is a pull-up resistor required on the COM pin?

No - the COM pin connects internally to the cathodes of all seven clamp diodes and must be externally tied to the positive supply of the inductive load (e.g., +12 V). It is not an input and does not require pull-up; incorrect connection disables flyback protection.

How does ULQ2001D1013TR differ from ULQ2003D1013TR?

ULQ2001D1013TR is optimized for general-purpose and DTL/TTL/PMOS/CMOS logic interfaces, while ULQ2003D1013TR is specified for 5 V TTL/CMOS with tighter VI(ON) thresholds (2.4–3.0 V vs. broader ULQ2001 range). Both share identical packaging, AEC-Q100 qualification, and output ratings.