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Product Detailed Parameters
- Description：IC PWR DRIVER NPN 1:1 16SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Bulk,Tube
- Transistor Type：-
- Current - Collector (Ic) (Max)：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Power - Max：-
- Frequency - Transition：-
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The ULQ2003ATDG4Q1 is an automotive-grade NPN Darlington transistor array manufactured by Texas Instruments. It integrates seven independent Darlington pairs within a single 16-pin SOIC package, designed for high-voltage switching applications. The device features a collector-emitter voltage rating of 50 V and supports a maximum continuous DC collector current of 500 mA per channel. It operates across an extended temperature range from -40°C to +105°C. The component holds AEC-Q100 qualification, ensuring reliability for automotive environments. Internal clamping diodes are included on each output to protect against inductive load transients.
Feature Summary
- Integrates seven independent NPN Darlington pairs for multi-channel switching control
- Includes internal freewheeling diodes on all outputs to manage inductive load flyback
- Qualified for automotive applications under the AEC-Q100 standard
- Supports direct interfacing with TTL, CMOS, and MOS logic families
Applications
- Relay driver circuits in automotive body electronics
- Solenoid and valve actuation systems
- High-voltage lamp driving interfaces
- General-purpose high-side or low-side switching in vehicle modules
Procurement Notes
Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status as defined by Texas Instruments documentation. Confirm the 'Q1' designation aligns with AEC-Q100 automotive qualification requirements for your target application environment. Ensure the SOIC-16 package dimensions match your PCB footprint constraints. Cross-reference the manufacturer part number with official TI distributors to avoid counterfeit components.
Selection Notes
Select this component when multiple independent high-current switching channels are required in a compact surface-mount form factor. The integrated Darlington configuration provides high current gain, simplifying drive circuitry compared to discrete transistor solutions. Consider the 500 mA per channel limit and thermal dissipation capabilities during PCB layout. Verify that the operating temperature range meets the specific environmental conditions of the intended automotive assembly.
Part Context
This part belongs to the ULQ2003A family of Darlington arrays, specifically tailored for automotive use. It serves as a robust interface between low-power logic controllers and high-power electromagnetic loads. The Q1 variant ensures adherence to automotive quality standards, distinguishing it from commercial grade counterparts like the standard ULN2003 series. It is widely used in power distribution units and body control modules.
Replacement Considerations
The ULQ2003ADG4Q1 is a documented alternative within the same family offering similar specifications. Other compatible options include the ULQ2003ADRQ1 and ULQ2003ATDRQ1, which share the core functional architecture. Verify pinout compatibility and thermal performance characteristics before substituting any alternative part numbers.
