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Product Detailed Parameters
- Description：IC PWR RELAY 7NPN 1:1 16SOIC
- Series：ULx200xA
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- 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 ~ 70°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 ULN2004ADRE4 is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It comprises seven NPN Darlington pairs with integrated common-cathode clamp diodes designed for switching inductive loads. The device features a 50V collector-emitter voltage rating and a single-output continuous collector current of 300mA. It operates within an ambient temperature range of -20°C to +70°C and is housed in a 16-pin SOIC surface-mount package.
Feature Summary
- Integrates seven independent NPN Darlington pairs with built-in flyback protection diodes
- Designed for direct interface with standard logic families including TTL and CMOS
- Provides high-voltage output capability suitable for driving inductive loads
Applications
- Relay driver circuits
- Hammer drivers
- Lamp drivers
- Line drivers
- Logic buffers
Procurement Notes
Verify the component status as the ULN2004AD series has been identified as End-of-Life (EOL) in public records. Confirm availability through authorized distributors or surplus suppliers. Ensure the RE4 suffix indicates lead-free compliance and environmental standards consistent with project requirements before finalizing procurement.
Selection Notes
Select this component when a multi-channel high-voltage switching solution is required. The internal base resistors allow direct connection to logic outputs without external current-limiting components. Consider the 300mA per channel limit and ensure thermal management is adequate for the specific PCB layout and load conditions.
Part Context
This part belongs to the ULx200xA family of Darlington arrays from Texas Instruments. It shares functional similarities with the ULN2003A but differs in input resistance characteristics. The ULN2004A variant typically includes higher value base resistors compared to the ULN2003A, optimizing it for different logic drive voltages and current requirements.
Replacement Considerations
Public data identifies the ULN2004ADG4 as a related variant within the same product line. Verify pinout compatibility and electrical specifications against the ULN2004AN through-hole version if alternative packaging is required. Cross-reference with other manufacturers' Darlington arrays only after confirming exact parameter matching.
