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Product Detailed Parameters
- Description：TRANS 7NPN DARL 50V 0.5A 16SOIC
- Series：ULx200xA
- 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：-
- Qualification：-
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Overview
The ULN2004AID is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates 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 extended temperature range from -40°C to 105°C and is housed in a 16-pin SOIC (D) package.
Feature Summary
- Integrates seven NPN Darlington pairs with common-cathode clamp diodes for efficient inductive load switching
- Includes 10.5-kΩ series base resistors per channel for direct compatibility with TTL and 5-V CMOS logic inputs
- Supports paralleling of Darlington pairs to achieve higher aggregate current 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 Package Option Addendum to confirm the exact packaging configuration. The 'D' suffix indicates a tube carrier format containing 40 units. Confirm that the lead finish is NIPDAU and the moisture sensitivity level is rated Level-1 for unrestricted exposure during assembly processes.
Selection Notes
Select this component when driving inductive loads requiring up to 50 V and 500 mA per channel. Ensure the application environment remains within the specified -40°C to 105°C operating range. Consider thermal impedance characteristics if multiple channels are activated simultaneously to maintain junction temperatures below the maximum limit.
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 provides seven independent channels instead of five. The device is designed for robust control of high-power loads using low-power logic signals.
Replacement Considerations
ULN2004AIN (PDIP package), ULN2004AIDR (SOIC tape and reel), ULN2004AINSR (SOP tape and reel). Verify pinout compatibility and thermal management requirements when substituting packages.
