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Product Detailed Parameters
- Description：TRAN 7NPN DARL 50V 0.5A 16TSSOP
- Series：ULx200xA
- Mfr：Texas Instruments
- Package：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 ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Grade：-
- Qualification：-
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Overview
The ULN2003APW is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates seven open-collector Darlington pairs with common emitters within a single package. Each channel supports a maximum continuous collector current of 500 mA and can withstand peak currents up to 600 mA. The device operates with a maximum collector-emitter voltage (Vceo) of 50 V and features an integrated suppression diode for each output to handle inductive loads. It utilizes a 16-pin TSSOP surface-mount package.
Feature Summary
- Integrates seven independent Darlington pairs with common emitters for multi-channel driving
- Includes built-in suppression diodes on all outputs to protect against inductive load back-EMF
- Features input pins positioned opposite to corresponding output pins to simplify printed circuit board layout
Applications
- Relay drivers
- Stepper motor drivers
- LED display drivers
- Line drivers and logic buffers
Procurement Notes
Verify the specific suffix 'PW' indicates the TSSOP-16 package variant rather than the standard PDIP version. Confirm the manufacturer source is Texas Instruments or an authorized distributor to ensure component authenticity. Check datasheet revisions for any updates regarding thermal characteristics or absolute maximum ratings before finalizing procurement specifications.
Selection Notes
Select this component when a surface-mount solution is required for driving multiple high-current loads such as relays or solenoids. Ensure the application voltage does not exceed 50 V and that the total power dissipation remains within the limits defined for the TSSOP-16 package. Verify compatibility with the control logic family, as the internal base resistors are optimized for TTL and CMOS inputs.
Part Context
This part belongs to the ULN2003A series of high-voltage Darlington arrays. While the ULN2003AN denotes the through-hole DIP-16 variant, the ULN2003APW specifically refers to the surface-mount TSSOP-16 configuration. Both variants share identical electrical characteristics and pinout configurations, differing only in physical packaging and mounting method.
Replacement Considerations
The ULN2003DR from Texas Instruments serves as a direct replacement, offering the same SOIC-16 package and electrical specifications. Other compatible alternatives include the STMicroelectronics ULN2003A and ON Semiconductor ULN2003ADG, provided the package footprint matches the design constraints.
