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Product Detailed Parameters
- Description：TRANS 7NPN DARL 50V 0.5A 16SO
- Series：ULx200xA
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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 (0.209", 5.30mm Width)
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The ULN2004AINSR is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It consists of seven NPN Darlington pairs with common-cathode clamp diodes for switching inductive loads. Each pair features a 10.5-kΩ series base resistor, enabling direct interface with TTL or 5-V CMOS logic devices. The device supports a collector-emitter voltage of 50 V and a single-output peak collector current of 500 mA. It operates within an ambient temperature range of -40°C to 105°C and is supplied in a 16-pin SOP (NS) package.
Feature Summary
- Integrated 10.5-kΩ series base resistors per channel for direct logic interfacing
- Common-cathode clamp diodes included for inductive load protection
- High-voltage outputs rated at 50 V with 500 mA single-output capability
Applications
- Relay drivers
- Hammer drivers
- Lamp drivers
- Display drivers (LED and gas discharge)
- Line drivers and logic buffers
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm the package type and reel quantity. Confirm that the component status remains active and check for any recent product life cycle notices or material compliance updates prior to finalizing procurement specifications.
Selection Notes
Select this component when a high-voltage output stage is required alongside integrated flyback protection for inductive loads. The built-in base resistors simplify circuit design by eliminating external components typically needed for logic level translation. Ensure the total power dissipation requirements are met given the thermal impedance characteristics of the SOP-16 package.
Part Context
This part belongs to the ULN2004A family of high-voltage Darlington arrays. It shares functional similarities with other members like the ULN2003A but offers distinct pinout configurations and internal resistance values tailored for specific driver applications. The 'SR' suffix indicates a tape-and-reel packaging format suitable for automated surface-mount assembly processes.
Replacement Considerations
ULN2004AIDR
FAQ
What is the function of the COM pin?
The COM pin connects to the common cathodes of the integrated clamp diodes, providing a path for inductive kickback currents when switching off inductive loads.
Can multiple Darlington pairs be used together?
Yes, the Darlington pairs can be paralleled to achieve higher current handling capabilities beyond the single-output rating.
How does the device interface with logic circuits?
Each input includes a 10.5-kΩ series base resistor, allowing the inputs to be driven directly by TTL or 5-V CMOS logic outputs without additional current-limiting components.
