TDF1778SP STMicroelectronics Integrated Circuit (Transistor Outline, Vertical) In Stock
STMicroelectronics TDF1778SP is a dual source driver delivering 2 A per channel at 8 V to 32 V supply range in an 11-pin TO package with integrated overcurrent and thermal protection. From $2.80 in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 11
- Lifecycle
- OBSOLETE
- Datasheet
- TDF1778SP Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TDF1778SP?
- Dual source driver architecture provides 2 A output current per channel, enabling direct drive of two high-current loads from a single IC
- Wide supply voltage range of 8 V to 32 V supports 12 V and 24 V industrial and automotive bus voltages
- Integrated overcurrent, thermal, and transient protection reduces external component count and protects the load circuit
- Buffer/inverter-based peripheral driver design for straight-forward interfacing with MCU GPIO output signals
What is TDF1778SP used for?
The TDF1778SP is used in industrial automation, automotive body electronics, and motor control panels where two solenoid valves, relay coils, or DC loads up to 2 A each must be driven from an 8 V to 32 V bus. Its integrated protection functions make it well suited for PLC output modules, HVAC actuators, and automotive lighting control units where overcurrent and thermal faults would otherwise require external discrete protection components.
What are the specifications of TDF1778SP?
| YTEOL | 0 |
| Built-in Protections | TRANSIENT; OVER CURRENT; THERMAL |
| Driver Number of Bits | 2 |
| Interface IC Type | BUFFER OR INVERTER BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PZFM-T11 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current Flow Direction | SOURCE |
| Output Current-Max | 2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | ZIP11,.2,.17,67TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 32V |
| Supply Voltage-Min | 8V |
| Supply Voltage-Nom | 24V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | TIN LEAD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.7mm |
| Terminal Position | ZIG-ZAG |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TDF1778SP datasheet?
TDF1778SP Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for TDF1778SP?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output current capability and supply voltage range of the TDF1778SP?
The TDF1778SP dual source driver provides up to 2 A per output channel and operates from an 8 V to 32 V supply, making it compatible with 12 V automotive systems and 24 V industrial bus voltages in a single package.
What built-in protections does the TDF1778SP include and how do they benefit PCB design?
The TDF1778SP integrates transient, overcurrent, and thermal protection, allowing designers to omit external flyback diodes, current-sense resistors, and thermal cut-off circuits, reducing BOM by 3 to 6 components per output channel in relay and solenoid drive applications.
In which industrial control applications is TDF1778SP a preferred peripheral driver choice?
The TDF1778SP is preferred in PLC digital output modules, HVAC damper actuators, and industrial conveyor control systems where two 2 A source-type loads must be switched simultaneously from a 24 V bus with inherent overcurrent and thermal fault protection.
How does the TDF1778SP package style affect PCB thermal management for 2 A loads?
The TDF1778SP is housed in an 11-pin vertical transistor outline (TO) package with a plastic epoxy body, which allows connection to a heatsink or PCB copper pour for thermal dissipation when driving 2 A continuous loads, keeping junction temperatures within the rated thermal limit.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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