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Product Detailed Parameters
- Description：PROTOTYPE
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- 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：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The ULQ2003TDRG4SV is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates seven independent NPN Darlington pairs, each featuring a common collector configuration with integrated clamp diodes for inductive load protection. The device operates within a supply voltage range of up to 50 V and provides a continuous output current capability of 500 mA per channel. Key electrical parameters include a gain-bandwidth product specification typical for switching applications, an input bias current of approximately 1.6 µA, and a maximum operating temperature of 125 °C. It is housed in a SOIC-16 surface-mount package suitable for automated assembly processes.
Feature Summary
- Integrates seven independent Darlington transistor pairs with shared emitters
- Includes built-in series base resistors compatible with standard logic families
- Features common cathode clamp diodes for flyback energy dissipation
- Designed for direct interface between microprocessors and high-power loads
Applications
- Relay driver circuits for industrial control systems
- Solenoid and motor actuation interfaces
- Lamp and lighting load switching applications
- General-purpose high-side switching for digital-to-analog conversion buffers
Procurement Notes
Verify the specific suffix 'SV' against official Texas Instruments documentation to confirm tape-and-reel specifications and moisture sensitivity level. Ensure compatibility with SOIC-16 footprint requirements during PCB layout. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.
Selection Notes
Select this component when multiple isolated high-current switching channels are required from a single IC package. Consider the internal power dissipation limits and thermal resistance characteristics if operating near the maximum current rating. Verify that the input logic voltage levels align with the internal base resistor values to ensure proper saturation without exceeding input current limits.
Part Context
This part belongs to the ULQ2003 family of Darlington arrays, widely used for driving inductive loads such as relays and solenoids. The 'TDRG4' designation indicates a specific tape-and-reel packaging variant produced by Texas Instruments. It serves as a robust interface solution between low-power digital controllers and higher-power analog or electromechanical components.
Replacement Considerations
Publicly confirmed substitute part numbers for ULQ2003TDRG4SV are not available in the provided reference data. Users should consult official Texas Instruments replacement guides or equivalent Darlington array datasheets for cross-reference information.
