STMicroelectronics ULN2002D1013TR

Overview

ULN2002D1013TR from STMicroelectronics is a 7-channel high-voltage, high-current Darlington array optimized for 14–25 V PMOS logic interfacing. Each channel delivers 500 mA continuous output current (600 mA peak), supports 50 V output voltage, and integrates clamp diodes for inductive load protection. It is used in industrial relay drivers and solenoid control systems where robust logic-level translation and load switching are required.

For engineers reviewing the ULN2002D1013TR datasheet, ULN2002D1013TR pinout, ULN2002D1013TR application, or ULN2002D1013TR equivalent, this device offers verified PMOS-compatible input thresholds (VI(ON) = 13 V min), low saturation voltage (VCE(SAT) = 0.9–1.6 V across 100–350 mA), thermal resistance of 64.7 °C/W (SO-16), and DIP/SO/TSSOP package compatibility - critical for layout-constrained PCBs driving relays or stepper motor coils.

Technical Context

The ULN2002D1013TR implements seven independent open-collector Darlington pairs with common emitters and integrated flyback diodes - eliminating external snubbers for inductive loads like relays and solenoids. Its input stage is specifically biased for 14–25 V PMOS logic families, distinguishing it from ULN2003 (5 V TTL/CMOS) and ULN2004 (6–15 V CMOS/PMOS).

Each Darlington pair provides DC current gain (hFE) ≥1000 at IC = 350 mA and VCE = 2 V, with turn-on/off delay times ≤1 µs. The SO-16 narrow package enables surface-mount assembly while maintaining thermal performance (RthJA = 64.7 °C/W), supporting sustained 500 mA per channel at TA ≤70 °C with ≤1 active channel.

Key Specifications

Pinout & Package

ULN2002D1013TR is housed in a 16-pin SO-16 narrow (SOIC-16) surface-mount package with 1.27 mm pitch, 10 mm × 4 mm footprint, and gull-wing leads. Pin numbering follows standard SOIC convention (pin 1 marked by notch/dot).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ULN2003D1013TR and TD62003FG, ULN2002D1013TR uniquely delivers guaranteed turn-on at 14–25 V PMOS levels without external biasing, making it the sole drop-in solution for legacy industrial control systems using PMOS-based address/data buses.

Availability

ULN2002D1013TR is available at Aetrix Electronics and suitable for industrial relay control, automated valve actuation, stepper motor coil driving, and thermal print head interface requiring stable component supply across extended temperature ranges (−40 to +85 °C).

Supply support for ULN2002D1013TR 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 analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The ULN200x series belongs to ST's high-voltage interface IC product line, engineered specifically for robust logic-to-load translation in harsh industrial environments with inductive transients and wide supply voltage ranges.

FAQ

What logic families does ULN2002D1013TR interface with?

ULN2002D1013TR is specifically designed for 14–25 V PMOS logic families. Its input threshold (VI(ON) ≥13 V) ensures reliable activation with PMOS gate outputs, distinguishing it from ULN2003 (5 V TTL/CMOS) and ULN2004 (6–15 V CMOS/PMOS). It is not compatible with standard 3.3 V or 5 V microcontroller GPIO without level shifting.

Can multiple outputs be paralleled for higher current?

Yes - ULN2002D1013TR outputs can be paralleled to increase current capacity. Two channels deliver up to 1 A (derated for thermal limits), and three channels support ~1.5 A. However, total power dissipation must remain within SO-16 thermal limits (RthJA = 64.7 °C/W), requiring careful PCB copper area design and ambient temperature control.

Is the COM pin mandatory for operation?

Yes - the COM pin (pin 16) must be connected to the positive supply rail (e.g., +24 V) to enable the integrated clamp diodes. Without this connection, inductive loads generate destructive voltage spikes exceeding 50 V, risking device failure. This is not optional; it is essential for safe operation with relays, solenoids, or motors.

How does thermal performance compare between SO-16 and DIP-16 packages?

The SO-16 package (ULN2002D1013TR) has RthJA = 64.7 °C/W, slightly better than DIP-16 (70 °C/W), due to improved board conduction. However, DIP-16 offers superior airflow cooling in vertical mounting. For surface-mount designs with limited airflow, SO-16's lower RthJA enables higher sustained current per channel at the same ambient temperature.