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Product Detailed Parameters
- Description：PWR MGMT LED DRIVER
- 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-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The ULN2003ANS is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates seven NPN Darlington pairs within a 16-pin SOP package. Each channel supports a collector current of 500 mA and withstands up to 50 V. The device includes internal suppression diodes for inductive loads and features a 2.7 kΩ series base resistor per pair, enabling direct interface with TTL or 5V CMOS logic. Operating temperatures range from -40°C to 70°C.
Feature Summary
- Integrates seven independent NPN Darlington transistor channels for simultaneous multi-load control.
- Includes common-cathode clamp diodes connected to the COM pin to suppress kick-back voltage from inductive loads.
- Features dedicated input resistors allowing direct connection to standard logic families without external components.
Applications
- Relay Drivers
- Stepper and DC Brushed Motor Drivers
- Lamp Drivers
- Display Drivers (LED and Gas Discharge)
- Logic Buffers
Procurement Notes
Verify the specific ordering suffix 'ANS' against the manufacturer's latest orderable addendum to confirm the exact SOP package dimensions and tape-and-reel specifications. Ensure the component meets the required industrial temperature range (-40°C to 70°C) for your specific application environment before finalizing procurement.
Selection Notes
Select this part when driving inductive loads such as relays or solenoids directly from microcontrollers. The 2.7 kΩ input resistor makes it suitable for 5V logic systems. For higher voltage requirements (100V), consider the SN75468 or SN75469 devices instead.
Part Context
This component belongs to the ULx200xA family of high-voltage Darlington arrays. It shares functional similarities with the ULN2002A and ULN2004A but differs in input resistance values tailored for specific logic families like PMOS or high-voltage CMOS.
Replacement Considerations
ULN2003ADYY (SOT-16 package).
FAQ
How does the ULN2003ANS handle inductive load switching?
It utilizes integrated common-cathode clamp diodes connected to the COM pin to safely dissipate the reverse electromotive force generated when the load is turned off.
Can multiple outputs be used together?
Yes, the Darlington pairs can be paralleled to achieve higher current capability than the single-channel 500 mA rating.
