SN75468N-A Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
SN75468N-A is a 7-channel NPN Darlington transistor array by Texas Instruments rated at 100 V and 500 mA per channel. Key specs: 16-PDIP through-hole package, common-emitter outputs with flyback diodes. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN75468N-A Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 7-channel NPN Darlington array with 100 V collector voltage and 500 mA per-channel current rating for driving high-current loads
- Integrated suppression diodes on each output for safe inductive load switching of relays, solenoids, and stepper motors
- 16-PDIP through-hole package for straightforward prototyping and direct socket installation in industrial control boards
Applications
The SN75468N-A is designed for interfacing low-current logic outputs to high-current loads such as relays, stepper motor windings, and solenoids at up to 100 V and 500 mA per channel. With 7 independent Darlington pairs, it simplifies multi-channel load switching in industrial automation, consumer appliances, and printer head driver circuits.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many channels does SN75468N-A provide, and what are the per-channel voltage and current ratings?
The SN75468N-A contains 7 independent NPN Darlington transistor pairs, each rated for 100 V collector-emitter voltage and 500 mA continuous collector current. This allows simultaneous driving of 7 relay coils, stepper motor phases, or other inductive loads directly from a single 16-pin DIP device.
Does the SN75468N-A include protection for inductive loads, and how does this affect relay driver circuit design?
Yes, the SN75468N-A includes integrated flyback suppression diodes on each of its 7 outputs, connected to a common cathode pin. These diodes clamp the back-EMF voltage spike when inductive loads such as relay coils or solenoids are switched off, eliminating the need for 7 external diodes and simplifying PCB design.
When would a designer select the SN75468N-A Darlington array instead of discrete MOSFETs for a relay driver?
The SN75468N-A is preferred when a designer needs to drive 7 relays simultaneously from TTL or CMOS logic with minimal external components, since each Darlington pair provides high current gain and the integrated 100 V, 500 mA rating covers most 5 V to 24 V relay coil specifications. Discrete MOSFETs require individual gate drivers and flyback diodes, increasing BOM count and PCB space.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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